§1. Fracture mechanics: Griffith, Irwin, and the J-integral [00:06]
So I'm just telling a story answering a question, you're coming in the middle of it, but we're talking about the science of fracture mechanics. The toughness according to Griffith in 1925 was greater than the stress times the square root of pi times the crack length, and a is the flaw size. He knew that in glass you can just scratch glass with something that's 25 microns, a thousandth of an inch deep, and it just makes it brittle as can be. So Griffith did an energy of fracture criterion: the strain energy stored in the thing that you're bending or pulling on must be greater than the ability to create two new fracture surfaces with their surface energy. That's how he did it.
After the Liberty Ship failures in World War Two, the Navy learned that it's not just the strength of the material, it's the energy of fracture, and you have to understand both if you're really going to understand fracture of materials. A guy at the Naval Research Lab, George Irwin, was head of the mechanical engineering department, and he took on this problem in 1946. He is now known as the father of fracture mechanics, even though Griffith had worked on it 25 years before, because he showed the same equations could be applied to metals as well as glass. So your question was about whether it can be applied to glass. Well, it was first applied to glass and then applied to metals. Dr. Belmar is an expert on fracture mechanics; I teach it some, and we can talk about that later. That's an aside.
There's a guy at Harvard named Rice, John Rice, and he came up when he was a graduate student doing his thesis at Brown University, I think — maybe he was at Lehigh — and then he became a professor at Brown, and then he was elevated, he was called to the professorship at Harvard. By the way, that's how it occurs at Harvard: they call you to the professorship. In the old days you were called to be a Harvard professor. Anyway, he came up with the J-integral criterion. For very tough materials you can't use the Griffith criterion unless the materials are very large. For a very tough material like you would have for the bullets and penetrators we were talking about, you might have to have something two feet thick in order to do the fracture toughness test. But the J-integral is basically just a fancy way of looking at the stress-strain curve and integrating the energy underneath it. The mathematicians have made this so complex that no one else can understand it, certainly not me. But the modern thing is the J-integral. Certainly when you get to very plastic materials like elasto-plastic polymers, you're going to have to use the J-integral.
Since Griffith in the 1950s and 1960s in the science of fracture mechanics, Rice came along in the 70s, developed the J-integral, and everybody does that. In the world of structural mechanics, there's Jim Rice up here, and the next person is down here. Rice is an order of magnitude above everybody else in understanding fracture in the world. He's probably about 80 now, or maybe late 70s. He's still around, but he's moved on to fracking — although he was doing fracture of rocks and tectonic plates as a fundamental scientist well before we got into fracking. He was doing that in the 80s and 90s. He really is a superstar. He's emeritus now I think, but he's incredible if you actually look and see what he's accomplished. Other questions?
§2. Review and the origins of lean manufacturing [05:12]
Since it's been a week — since I was away for a week — I'm going to go through a very brief review of the last lecture. Total quality management: is it a revolution in manufacturing? Some people think it's garbage; some CEOs think it's the greatest thing since sliced bread. I gave you some references, told you the story about Tom Lee and the difference between managing at a university versus managing in industry or a big international governmental agency. I talked about the TQM challenge in going to IBM to learn about customer-driven quality and how a quarter of their workforce was doing negative value-added work. I've been giving you some books and some reading if you want to follow up on it. You're not quizzed in this course so you don't have to follow up on it, but I've been criticized by students in the past that I don't tell you how to go learn more on your own. Well, I shouldn't have to do that. You're MIT students, you ought to be able to figure it out on your own. But I'll give you some hints. It doesn't cost me much to give you hints.
Where did TQM come from? It goes back to people like Henry Ford and others a hundred years ago. I actually trace it to the Navy's Thresher disaster in the early 60s. If you look on Wikipedia, you'll find they say it was the Navy in the mid-80s. In any case, whether it's 60s or 80s, the US Navy did go into good manufacturing practice and used the term in the 80s as the first source of the term according to Wikipedia. But there's something called lean manufacturing, and lean manufacturing came out of MIT. This is Dan Roos's book. Dan Roos was a faculty member in civil engineering, and he had a million-dollar-a-year STEP program in the 1980s, a big program to study the future of the automobile. He was in transportation and he was the big world guru. He knew all the CEOs of all the major automotive companies in the world. He came out in like 1988 with some co-authors who were the primary authors, but out of their study they came up with this book called The Machine That Changed the World. They're talking about the Toyota Production System. This is when Toyota was building better quality cars than anything out of Detroit. They still are. The book describes how they did it and the principles that Toyota used.
Kent Bowen founded the Leaders for Manufacturing program, which is now the LGO. He was a ceramics professor in this department, left to Harvard Business School, and he taught the Toyota Production System. He's retired. The term lean manufacturing was coined in that book. No one had ever used it before Dan Roos and his co-writers.
§3. MIT politics and the LFM program [08:30]
So I'm going to tell you this story of infighting at MIT, and that's where I had left off. There were four people at the top — that was a fight between mechanical engineering and materials engineering. Nam Suh and Cook were very powerful people in mechanical engineering, started the Lab for Manufacturing and Productivity, which still exists. Then Mert Flemings founded the Materials Processing Center in this department, and they were just mortal enemies. As a young untenured assistant professor, I got caught in the middle of the crossfire.
Kent Bowen comes along; he was asked by the Dean of Engineering to start a manufacturing program in 1984. He started raising money. By 1989 he had $50 million, all from American industry. MIT was going to redefine manufacturing. Tom Magnanti was a professor at the Sloan School of Management, had been denied the job of Dean twice, was aspiring to become an administrator, and he and Kent Bowen started this program. There were 19 LFM professors. We got term chairs. Dave Hardt was one, I was one. A couple of young guys who had just graduated under Warren Seering in mechanical engineering with their PhDs in product design were hired by the Sloan School: Karl Ulrich, who had done a bachelor's thesis with me, and Steve Eppinger, deputy dean at the Sloan School, and many other people. Karl Ulrich did not get tenure because he was not a real management school type of person. He really crossed the boundaries between engineering and management. He didn't get tenure in 1995. I was a department head at the time. The Dean of Engineering, who became the Provost, Joel Moses, assigned me to write a report on what should be done if we can't tenure someone like Karl Ulrich, who's now a full professor at Wharton.
What Karl is really known for — you know all the little two-wheeled scooters kids ride around on? Karl didn't invent it, but he was the guy who brought it to the United States. He was selling and making them in his garage in New Hampshire. He made quite a bit of money. His mother is a university professor at Harvard, which is kind of like an institute professor here. She won the Pulitzer Prize. Interesting family. The people in the lower part were just the worker bees, and the people at the top were the main ones. Kent Bowen in 1993 goes off to Harvard. I become co-director along with Tom Magnanti, one of the founders of the LFM program. For four years, Dan Roos was the guy to the outside world in lean manufacturing, and we had these guys from industry as part of this $50 million program, and his name was never mentioned. This was the internal politics.
In one of my first meetings as engineering co-director I said, Dan Roos is just two floors below us in E-40. We're on the fifth floor, he was on the third floor. I said, how come we don't bring him in to talk to our governing board? Oh no, you can't talk to Dan Roos. Excuse me? On the outside world Dan Roos was the face of lean manufacturing, which was now a big thing around the world, and we were the $50 million, now $70 million dollar manufacturing program. No, you can't go talk to him. Knowing me, I'm going to go talk to him anyway. These people could not stand that I was going to defy them and go say hello to Dan Roos. So I make an appointment, go see Dan Roos. Dan welcomes me with open arms. He obviously had been chagrined that he had been cast aside when he was now the big name on the outside, and he couldn't even participate in this $70 million program because of the internal politics. So when I talk about total quality management, you need to know that MIT has big warts. We're like any other organization. I'm not saying that MIT is terrible to you — you'll find that actually you think MIT is not bad — but we have our warts. And any organization you're going to be in, you're going to find some warts.
It's worth reading or scanning — if you just look up total quality management on Wikipedia, the fount of all knowledge, they have a whole series of articles about total productive maintenance, Theory of Constraints, lean manufacturing, Six Sigma, zero defects. You've got 15 minutes, go read them. I don't want to spend the time lecturing to you about what these things are. They're all buzzwords in the business world for things that fall under total quality management.
§4. Forerunners: Taylor, Ford, Toyoda [14:39]
Forerunners. I said something wrong — I was looking again at some of these articles this morning. Frederick Taylor actually died before Harvard Business School had started. He was not at Harvard, he was at University of Pennsylvania. But nonetheless he was the father of scientific management. The person who coined the term scientific management was a guy named Louis Brandeis in an opinion he gave before 1910. Then Frederick Taylor wrote a book in 1911 called The Principles of Scientific Management. He picked up the word from Brandeis. Who was Brandeis? He was one of the most famous Supreme Court justices in the United States. We have a university out west of here named Brandeis University. Along with other great Supreme Court justices — you ever heard of Oliver Wendell Holmes? He was a Supreme Court justice. He said a lot of famous things from the bench. Steve can cover that and talk about great lawyers.
There's Henry Ford. You kind of know what Henry Ford did, but you can read about it. And Sakichi Toyoda, who is the father of industrial manufacturing in Japan, ran a company that made sewing looms. In 1925 they offered a twenty-five-million-dollar bounty on anyone who could come up with something better than the lead-acid battery. Twenty-five million dollars in Japan in 1925 is like offering a half a billion as an award today, because you needed a lead-acid battery for reliability and running these looms, and he was trying to come up with a more reliable system for his customers. I would suggest you look them up on Wikipedia to learn more about what they did in manufacturing. These are three early leaders. These guys were a hundred, 150 years ago, doing things that were unique in manufacturing, and a lot of the principles they worked on and taught are what we call total quality management today.
§5. Douglas McGregor and the human side of enterprise [17:19]
Total quality management is a new term, and that's why some people think it's garbage, it's just a bunch of buzzwords. But some people say these are important principles. One of the people who taught some important principles was a guy named Douglas McGregor. How many of you are from Sloan? You haven't heard of Douglas McGregor have you? Off of Sloan, of the Sloan School — who was Alfred Sloan, what was he famous for?
Student: General Motors.
General Motors, right. He was an MIT grad, and he gave a tremendous amount of his fortune to MIT in the early 1950s. He gave a bunch of money to MIT for teaching principles of management — scientific management it was known at the time. MIT took this little department that was in the School of Engineering called the Department of Business and Industrial Development, which sort of taught industrial engineering type things, and they created a school and named it after Alfred Sloan. That's how the Sloan School of Management got started. About the same time a new dean of engineering in the 50s decided MIT should just do scientific engineering. They didn't want to do any of that practical stuff that real engineers do. So they took all the practical stuff out of the School of Engineering. Some of it went over to the Sloan School, trying to upstage if they could Harvard Business School, the competitor up the street. That still goes on.
I remember in 1988 when I took the Sloan program for senior executives — this is a nine-week intensive program where you spend like 80 hours a week learning management, so I have a Sloan degree. Not a degree, I guess — I don't know if it's a certificate. I got a coffee mug with my name on it; that's almost as good as a degree, right. Someone asked Ed Schein, who was a protégé of Douglas McGregor — he was teaching, and we were going to have dinner with the Harvard Business School executive education guys taking their 13-week course, and someone says, what's the difference between Sloan and Harvard Business School? Schein kind of stops and scratches and says, well, Harvard's sort of the West Point of business schools. They teach case methods, which is how it's been done in the past. West Point, if you're going to have a tank battle, they teach you what happened in the Arab-Israeli war. They teach you the history, and you're supposed to infer the future from the past. Whereas MIT's more the Bell Labs of business schools.
In fact that's exactly what I found when we went to the IBM Center for Quality Development. They were talking principles at us for a week of business school practice, and half a dozen of the people who wrote the books on those subjects were MIT faculty sitting in the audience. The case of IBM — didn't they talk about, well so-and-so wrote — and there he was, your student. It's kind of funny.
Douglas McGregor in the 1950s wrote a book called The Human Side of Enterprise. [Tom retrieves the laser pointer.] Theory X is about the way General Motors used to treat its employees when I was working with them — I didn't work for General Motors but I interacted with them — where people disliked their work, they've got to be forced or coerced into doing their job, you don't give them any responsibilities per se, you let management tell them what to do. In Theory Y — that's what Douglas McGregor called these in his book — we need to work with people who actually want to work, they want to take an interest in what they do, they'll direct themselves towards the target that we accept as our goal. So there's the negative view of the worker bee and the positive view of the worker bee. This was a revolution in management in the 1950s. If you look it up, you'll find The Human Side of Enterprise is considered one of the top 25 business books ever written. Part of it was Alfred Sloan working directly with Douglas McGregor. Douglas McGregor wrote this book, which, as I have now polled a couple of people, they don't even mention him anymore at the Sloan School, because everything kind of goes back to the lowest common denominator where they treat us all like dirt.
One of the principles of TQM is the principle that Douglas McGregor taught. It's worth looking at, or at least browsing, Douglas McGregor's book. [Tom passes around an annotated edition of The Human Side of Enterprise.] This is the annotated edition, and it's got some lengthy forewords by some other Sloan people who are some of the leading lights in manufacturing and how do you manage people. But the whole idea of treating people well goes back thousands of years. To take a few people that you've heard of, Andrew Carnegie: "Take away my people but leave my factories, and soon grass will grow on the factory floors. Take away my factories but leave my people, and soon we will have a new and better factory." So Andrew Carnegie understood it.
Here's a quote from a book from 1985 on total quality management. This is an executive at CBS Sony Records — this is Japanese Sony, this is when Sony was not so big, but CBS Sony bought CBS I guess is the way it went — and it's from What Is Total Quality Control? He said the difference in the quality of sound of their records — the old 33-and-a-third rpm records — comes from our people and not from our machines that are stamping out these records. It's the people, and the people want to make a good product. As I often say, I don't know anyone who goes home at the end of the day saying I did a lousy job at work today and I'm proud of it. What they're more likely to say is, unfortunately I did a crappy job at work today, and it's not anything I had control over. I did exactly what I was told, because if I didn't, they would beat me in some figurative way. The thing is, if you actually learn to trust the people you work for, you can gain their control.
I always tell my LGO students, when we go out to the companies, 90% of the problems — manufacturing problems — are not technology problems, they're people problems. When Kent Bowen and Tom Magnanti started the LFM program, it was supposed to be an equal partnership, 50% management, 50% engineering. I was one of those engineering professors. I was supposed to go out there and teach Motorola how to do better technology. Bull. Motorola already knew better technology way ahead of me. They didn't necessarily know better ways to manage people. My grandmother knew better ways to manage people. Charlie Fine was a young assistant professor at the time. He's a full professor now. A few years ago on the MIT 510k forum or whatever it's called — MIT has to report to the Securities and Exchange Commission, because we're a corporation, and we have to name the top ten earning people at MIT — Charlie Fine was number one. He made just under a million dollars, and that was because he was teaching the executive education programs on supply chain management. He's a great guy. We used to supervise students together, and he said there are $100 bills laying on the floor of manufacturing plants. If you want to get rich, just go out there and pick them up.
§6. The mad shitter: Honeywell plastic film plant [27:43]
I will tell you some stories about some of those hundred dollar bills, and how I picked them up and handed them to other people because they wouldn't let me keep them — that's part of intellectual property. One's about the mad shitter. I had an LGO student, and she was assigned to a Honeywell plant. I shouldn't have said Honeywell, but I said Honeywell. Honeywell had acquired this little business, a mom-and-pop operation, that made plastic film — sort of like the stretch wrap that you might wrap pallets in today. That's not what they were doing, but it was big machines like that. She had been assigned to do her internship at this plant. We went down there, and it wasn't a terrible building. You go inside, they had stacks of bad inventory just going up two stories high, these rolls of plastic. They had this big three or four million dollar machine that could create the plastic film, and you look over the toolboxes and they had big padlocks on them. That's because the workers didn't trust each other; they would have their tools stolen by their coworkers. The management hated each other. And they told us the story of the mad shitter. It's a true story.
There was a problem in that sometimes they go to do the custodial things in the men's restroom, and one guy had been in there, and he must have used rubber gloves or something I assume, but he had taken his excrement and rubbed it all over the walls. I can't remember the student's name right now — I can see her in my mind, I'm terrible on remembering names. This is what we were going to send her down to for seven months. After we had done our little pleasantries and learned about her internship, I said, let's stop at the diner up the road and have a little — I drink orange juice and she drank coffee or something. We went up there. I said, so what are you going to do about this environment, this people environment you're going into, where it's just war going on between management and the hourly workforce, and among the hourly workforce? Padlocks on their tool chests and stuff. Clearly it's not going to be a very productive happy situation. She says, well I don't know. She had actually worked in industry, she had about 8 or 10 years experience, but not in a factory like this. I said, I know what you're going to do. Why does someone go rubbing their excrement on the walls? Because they're completely frustrated, no one's listening, so they're trying to get attention. It might be immature — what does it matter? You're going to find a lot of immature people in your life. So what are you going to do, change that?
I said, I'll tell you what you're going to do. This is what Steve is doing for you: every Friday you're going to come and get doughnuts, and you're going to bring them in. And every day during the week you're going to go out there on the factory floor as the new person and say, what can I do to help you? Just ask them, what can I do to help you? At first they're not going to tell you, because they don't trust management, and you're part of management. But some of them will tell you. Or, what frustrates you — just ask that question. It might be something simple like, we never have any coffee for our coffee shop, or we never have any sugar. And you're going to go solve that problem. They may tell you some other bigger problems that there's no way you can solve walking in as a new person, but there's going to be some simple problems that you can solve. And every Friday you're going to bring in doughnuts for those hourly workers and you're going to put them next to the coffee stand. Within two weeks those big old guys had their arm around her showing her this and that and what was wrong. She was able to have a wonderful internship. She worked with those hourly workers great; it was a great relationship; they loved her. She would go back to management and say, by the way, did you know that if we do such-and-such? The workers knew what needed to be changed in that plant, but no one had been listening to them. So what do they start? Spreading the excrement on the walls. It worked. It was a great internship, and she added some value. She was happy to get out of that place.
§7. Alcoa Tennessee: the murdering Alcoans and the toilet paper strike [32:42]
The other one is Alcoa Tennessee. It's on the Tennessee River near Knoxville, between the airport and Knoxville itself, and it's called Alcoa because back around 1900 Alcoa went down there because they had low-cost electricity to smelt aluminum ore. At the time I think it was the world's largest aluminum can production plant — making aluminum for coke cans and stuff. The people in Tennessee have long memories. I was born in Chattanooga, folks McGee. I'm at the East Tennessee end. Back around 1910 they had a strike, and Alcoa brought in the Pinkerton guards, which is sort of typical of labor relations at the time. Someone among the Pinkerton guards shot at the people who were the Union, the Union that was being locked out, and a couple of people died. Even when I went down there in 1990, the hourly workers still called it the murdering Alcoans. They had a memory from 80 years before about how their grandfathers had been killed by the Pinkerton guards. Pinkerton was the people Alcoa brought in — they were Black Rock, the mercenaries that we pay, the mercenaries who would go in and clean house for the captains of industry 100 years ago. So they called them the murdering Alcoans.
They had just finished a strike about four or five years before, in the late 1980s, and typically today what happens when you have a strike in a critical facility, they'll make the management people come in and start running the plant. One of my favorite stories on that is the power plant right across from the new Wynn casino over here at Everett, used to be owned by Boston Edison, now it's probably National Grid or somebody. They had a strike and they brought in people from downtown, and one of the engineers from downtown — "I used to design things for the plants" — comes in, he's now got to go up and down this ten-story building to do the work, to turn the valves and everything. He walks in and he says, boy it sure is big as he looks up at this huge boiler. And the foreman, who's one of the regular workers in the plant, says, well, you designed it.
At Alcoa, this guy was working in the plant, and they used to have meetings of the management people about who's going to take care of what the next week during this strike. He says, gentlemen, I want to tell you what the strike is about. I had been working for 16 hours, I was about to explode, I needed to go to the restroom, and I was heading towards the restroom and my manager said, go over and fix this thing over here before you go. And I did. Finally got to the restroom, get in, close the stall door, sit down, and I get this big cut from the splinters on the wooden toilet seat. I'm bleeding. I do my business and I reach to find the toilet paper. No toilet paper. Gentlemen, this is what this strike is about. So there's the mad shitter story, there's the other guy who's not necessarily a mad shitter, he's just a very bloated shitter. I got other stories like this. I figured I could put those two together, because most people are just shocked by the idea of a mad shitter. But you have to ask yourself, why are people acting like this? What's motivating that type of behavior? What's motivating is you, the management.
I'm going to change topics now, we've had enough about restrooms. Anybody have any questions? When I say the problems are people problems and not technology problems — what has happened to the LFM program? It became the LGO program, and now it's a Sloan program, and there's almost no engineering faculty who participate. Why? We were irrelevant. The companies didn't need our technology; they needed to learn Douglas McGregor's principles of the human side of enterprise. And they still do. Although some companies are actually pretty good at it, but not all of them.
§8. Bill Fonte and the Linden New Jersey Chevy Blazer plant [37:56]
If you go and ask for images of quality on Google, this is the garbage you get. What's the content in that? This one has got words in it, Six Sigma — that's a little more content. This image has quality surrounded by a bunch of circles, it looks like a baby's toy. This is why some people say there is nothing of substance to total quality management. In fact there are some things of principle in total quality management. Total quality management also includes total productive maintenance, and I've got some pictures of commercial locating pins.
If you go into a machine shop and they're building a piece of tooling for a manufacturing facility, many times you have to have the parts fit and register, so some stamping press can come down and hit them. So they have these little locating pins with all kinds of different shapes on the top. The story here is a General Motors plant, and it's a story about Bill Fonte, who is one of the early LFM graduates, like 1995. Bill had a 1.8 cume at the University of Syracuse out of 4 in zoology, and he had gone to work for General Motors. There was a vice-president and a senior vice-president at General Motors who thought Bill was wonderful. Bill could go out on the factory floor and he could get those hourly workers to work. He was just a very personable Italian from New York. They decided they wanted to send him back to the LFM program. I was on the admissions committee for the LFM program in the early 90s, and people looked at Bill Fonte with his 1.8 cume — voilà, GE at Syracuse, laughed.
I said, wait a second, you've got a member of the governing board who's a senior vice-president of General Motors, and you've got this other guy, and you respect these people and they say Bill is wonderful, what's wrong? Well, he could never pass our classes. They turned down his admission even though he was a fully sponsored GM employee. These guys liked him so much. Bill got into the mechanical engineering department, and Bill took some courses, he got straight A's. The professors were asking if he would be their TA in their class because he had done so well. They put him up for LFM the next year, and the professors from engineering departments and the Sloan School — we already turned him down. I said, wait a second, why did you turn — he had a 1.8 undergraduate cume, he can't handle MIT. What do you mean he can't handle MIT? He's got a 5.0, he's the TA, and you all know him, he's one of the most personable people around. That's one of our low points at MIT, we don't always have personable people. Everybody liked Bill — that's why General Motors liked him, he could work with people. I beat up on that committee for several sessions, and they finally said okay, we'll admit him. He came in, he was the leader of his class. He's just a natural-born leader.
So I often tell my students, if you ever have a problem, you took my class, I'll give you some free advice, free consulting, just give me a call if you run into a problem, we're friends now. About a year and a half later Bill's sent to the Linden, New Jersey manufacturing plant where they're making Chevy Blazers. Sent him there because — hey, this is New Jersey, just like the Honeywell plant in New Jersey that made the plastic film with the mad shitters — not the best employment relations. Bill calls me, he tells me about this welding problem. This is on the hinges of the Chevy Blazer, and they weren't getting good arc welds. I said, Bill, what's the electrical ground? I gave him some points to check. He said he'd go check them. About a week and a half later he calls me up: Tom, could you come down? I said, well Bill, did you check the things I asked you to check? Well no, but I'd really like you to come down. I said, you can ask for some free advice, but I'm not going to pay to go down. Oh, we'll pay for your airfare, but we don't have any money to pay you as a consultant. Okay Bill, you're a friend, I told you I'd help you, you paid my airfare, I'll fly into Newark and come see it.
I walk in, we go up to the machine, it's break time, there's no one at the machine, and I go up and look at it and there's oil all over the electrical ground. The parts are metal parts that have to be welded, but they had to be stamped first, and so they still got the lubrication. I said, Bill, no one's degreased these parts. Oh you're right, and Bill tried to actually pick one up and it slipped out of his hand, it was so oily. I said, you can't get a good electrical ground through oil. About that time the hourly worker who runs the machine comes up, and we introduced ourselves, and I said, are these things always this oily? He says, oh no, these are pretty clean compared to what I usually get. This is a true story. I said, well, how are you getting any welds? He says, oh I got this rag over here, I just wipe it off every now and then. He wipes the oil off. So you could have degreased the parts and then you could have made a weld. You don't usually try to weld through oil — most welders know it, the hourly worker probably knows it.
Then we go around back and here's a whole rack of hoods that they're welding the bracket that holds the hinge onto. I go over: defect there, defect there, defect there, defect there. Bill said, oh that's just a rack of defective parts that we've made, we're just storing them to get a repair done. This particular weld was a spot weld, and there were some parts there, and the guy wasn't there because he was out fixing parts or something. I tried to pick up one of the parts, put it in the fixture with the locating pins, and it slipped out of the fixture and fell on the floor. I picked it up to try to put it in again, it slipped again. Bill says, well let me try it. He puts it in, slips on the floor. I said, Bill, look at that locating pin. The locating pin, which was supposed to be a simple cylinder, looked more like — it was worn away. This is a hardened steel locating pin. Probably took a year or more to wear away like that. The question is, did they have any maintenance in this plant?
I said, well Bill, see if you can get the parts degreased, see if you can get somebody to replace the locating pin, and let me know what happens. He said, oh Tom, I want to give you a tour of the plant. I was there, I might as well take a tour — you always learn something on a tour. This is an example of Charlie Fine: hundred dollar bills located all over the floors of these factory plants. You have to remove the grease, the oil; you've got to take care of the locating pins. He says, I want to show you this hinge on the rear liftgate of the Blazer. We've got a galvanized steel hinge, and they're welding it, and they're getting a lot of frosty welds. Well Bill, you always get frosty welds when you weld steel through galvanizing because the zinc vaporizes. He says, well yeah, but I need to fix it Tom. This was his job, was to fix these problems. I start to look at it. I said, well Bill, this is on the inside of the vehicle, why are you galvanizing this hinge? I don't know.
We left it. He's going to find out why they galvanized it. Turned out there was no need to galvanize it. When he pointed it out to the engineers, they took away the galvanizing and saved a quarter million dollars a year. He still had a hard time paying my $220 airfare, but they finally did. So sometimes the hundred dollar bills are larger than a hundred dollars. It's just a question of going out there and using your common sense. Not everybody knows you can't weld through galvanizing — I think you knew that, what's your background? Material Science. So you had galvanized things for corrosion problems. Anybody else? Anybody else knew that was a problem?
§9. The one-and-a-half phone calls, and how consultants really work [47:26]
You don't have to go that far. They've done a study over the MIT industrial liaison program, where a company calls up — they paid $100,000 to belong to MIT's Industrial Liaison Program — and they found it takes one-and-a-half phone calls on average to hit the right professor. The officers over there kind of know who we are and they'll call up and say, I've got a company, they've got a problem with this, can you help them? You might say yes, or you might say no but you ought to call professor so-and-so. On average it's very rare they have to go through three phone calls. On average it's one-and-a-half phone calls to find the right person who knows the answer. The answer is usually they're in your system.
Students used to ask me, you're a consultant. As a consultant in manufacturing for a company, management brings you in because the engineers in the company have been unable to solve the problem. The worst thing you can do from the engineer's point of view is to solve the problem in the conference room. It kind of makes the engineers look sort of not so swift. You want to solve the problem. Now some people don't want to solve the problem; some consultants would just love to come back for a few more visits. This is why we have health care costs that are through the roof. Doctors can solve your problem in one visit, but they don't — they solve it in 10 visits, and it turns out they make more money that way. I know this because I have a son who is an athletic trainer, and he can solve the person's problem in one or two visits, and he says, okay you're done, you don't need me anymore. He's having a hard time building up his business because he doesn't have people continuing to come back. That's getting into why the health care system is dysfunctional.
I go into a company, I listen to the problem. Management tells us the problem, then the engineers are supposed to tell the problem, but you find the engineers don't always tell you the whole problem because they don't really want you to solve it right away. They'd like someone to solve it but they don't want to look stupid that you know the answer without even going out there. So what do you do? You go out there, ask for a tour of the factory, and while you're on the tour of the factory you find some time to go up to the foreman and say, what's wrong? If the foreman tells you what's wrong — he knows what's wrong, this is a machine he works with every day. He's not necessarily the most articulate person in the world. So you translate what he said into management-ese, engineering doublespeak, or whatever you want to call this. You go back in the conference room and say, well I think — and you tell them what the foreman said. That's why the big consulting firms say the definition of a consultant is someone who borrows your watch, tells you what time it is, and then keeps it. That's enough for today. I'll see you tomorrow.