| by Jean
Thilmany, Associate Editor |
Much of
the time we're running on autopilot. Consider the act of shaving.
You don't have to talk yourself through it every day like you did
the first time. Most likely, your mind is on other things even as you
pull a razor blade across your skin.
Or driving. A daily driver pulls out without thinking. The teenager with
license newly in hand still runs through a mental checklist before he
moves the car onto the street.
The same could be said for new employees, says Jim Mahoney, a simulation
engineer at Honeywell Federal Manufacturing & Technologies in Kansas
City, Mo. A prime contractor for the U.S. Department of Energy, the company
makes electronic, manufactured, and engineered-material components for
the defense industry.
Many engineers spend their entire careers at Honeywell FM&T, Mahoney
said.
"We've been in production for so long we have folks toward
the end of their careers, like mechanical or metallurgical engineers,
that have 30 years experience on how to make parts on a certain machine
or assembly," he said.
 |
| Several CAD programs like Catia
version 5 include knowledge capture features that archive best design
practices and company specifications. |
They know how to do their jobs inside and out; they've learned the tricks
of the trade to the point that they take them for granted. It's not information
they think of as knowledge per se. So they don't consider imparting it
to their younger colleagues.
"When someone is here 30 years and decides to retire, it leaves a
huge hole," Mahoney said.
Honeywell executives saw that vital engineering information was walking
out of the company year after year and decided to do something about it.
The company has found a myriad of ways to pass job know-how from senior
to junior engineer, said Michelle Maurer, a staff engineer at the company.
"Our concern was that the workforce is getting older and a lot of
knowledge is going right out the door," she added.
Honeywell FM&T executives wanted to specifically ensure that none
of what they defined as the company's manufacturing specialties, like
welding, machining, forging, and product assembly, degraded as engineers
left the company. They figured that if design engineers better understood
manufacturing processes and if manufacturing engineers better understood
how mechanical engineers do their jobs, they'd work together toward the
most manufacturable products.
At first, executives tried cross-training finite element analysts and
manufacturing engineers to understand each other's work. Because each
field is equally intense, it was quite hard for analysts to get up to
speed on the manufacturing engineers' specialty, and vice versa.
So Honeywell came up with a better idea. Now executives and managers identify
important design areas that can be demonstrated via FEA technology. Then,
manufacturing and design engineers as well as analysts can run the demonstrations
to learn key parts of each other's jobs.
For instance, both types of engineers, by tinkering with Honeywell's homegrown
software, can get a better idea of the relationship between the mass of
a tooling fixture and resulting shock and vibration during assembly. The
hands-on training system, called a simulation advisor, shows engineers
how changing mass affects product assembly down the line.
Professor
Computer
The simulation advisorswhich key all types of engineers into each
other's processesare developed under Honeywell's
knowledge capture program, which makes sure that key process information
isn't lost and is as widely distributed as possible.
The company takes a multifaceted approach to what managers at Honeywell
refer to as knowledge preservation or knowledge capture. On the computer-simulation
side, Mahoney and his teamnotably Aaron Seaholmbuild the
simulation advisors using computer interfaces that closely resemble the
Internet and software tools new engineers are already familiar with.
The advisors simulate a manufacturing or engineering process that the
new engineer will be called upon to carry out. Newbies can play around
with a model. They might change settings on a virtual machine or experiment
with how different diameters or materials would affect a part, much as
they would when running a part analysis. Fledgling employees get quick
results on how their changes might affect part or process.
The advisors roughly simulate and are intended to speed up the way older
generations of engineers learned on the job: by trial and error.
In fact, the simulation advisor is nothing so much as a virtual mentor.
It allows all Honeywell engineers to run key processes virtually, learn
from their mistakes, get the hang of the process and the manufacturing
machines, and to pick up on the little ins and outs that they'd
spend a long time learning hands-on at the actual job.
Seaholm and the computer simulation team built advisors for seven manufacturing
processes during the past year or so, including an inertial welding program
that new engineers train on to learn Honeywell's rather unique
process. That way, they can better design parts that can be easily welded.
"In inertial welding you take a part, leave it stationary, take
another part, and put a flywheel to it to spin it, then jam it into the
other one," Mahoney said. "The intimate contact and the
friction and the flywheel force a diffusion bond."
 |
| Honeywell's homegrown simulation
advisors can impart a lot of information on how a manufacturing process
is run or how a part is best designed. |
A number of factors implicit in that process affect part quality.
"How much force you use on impact, how fast you turn the partthey
all have a measure on how the part turns out," Mahoney said. "If
the force is too light, it doesn't come together.
"A 30-year engineer knows this," he added. "But a
new one wouldn't know the outcome of using too much force. He's
just trained on how it's done. He needs to be able to kind of fool
around with it."
A new engineer could learn all this slowly over time at the actual manufacturing
machine, although he'd have to wait in line to get time on the
machine; or, he could simulate it and play around with force and flywheel
speed on the computer.
"So this new engineer can run a whole bunch of these simulations
very quickly and get an understanding of how they work," Mahoney
said. "That and mentoring is how someone learns very quickly. It's
really kind of a niche or an advantage we have in understanding how products
can be formed."
The simulation advisor uses FEA technology that runs in the background,
and an engineer training on the advisor sees only a visual interpretation
of the process on a Web browser. That is, the engineers use an interface
they're familiar with and don't need to learn the ins and
outs of an analysis program. For FEA, Honeywell uses Abaqus from Abaqus
Inc. of Pawtucket, R.I.
Seaholm also uses Web authoring tools and the free-use Python programming
language to create the advisors.
Why This Way?
The simulation advisors get new engineers up to speed quickly, and although
they still can't simulate 30 years of field experience held by
a retiring engineer, they can help a new engineer learn by trial and error.
An older engineer might know that a mechanical engineering or manufacturing
process needs to be done a certain way, but he might not know why, Mahoney
said.
"Our knowledge preservation program is good at showing us how we
make something, but it's not good at showing us why we don't
make it another way," he said. "The simulation tools show
us not just why we do it, but what would happen if we tried to do it another
way. We can ask what-happens-if questions.
"Engineers can try things out, they can double the load for a part
and see what happens," he added. "They get to fool around
with stuff."
The simulation advisors help new engineers learn how to make a part and
how to design a better part by picking up on the variables inherent in
a manufacturing process they may never have used before, he said.
Multiple Media
Training
Still, new Honeywell engineers have yet another training ace up their
sleeve. They can call upon a wealth of archived information gleaned from
other engineers. Those archivesstored on a variety of multimedia
applications, all accessible via the company's intranetaren't
just for fresh hires.
Michelle Maurer heads up the knowledge preservation program that maps
in detail how certain processes are done. All engineers have access to
that information, brought to them right on their desktops, for a quick
tutorial.
The maps cover things a person wouldn't intuitively figure out
or that simple documentation wouldn't cover, Maurer said. High-level
maps offer a broad overview of a process. Users then circle in until they're
learning the minutiae of a process within a process.
The maps take the training manual and on-the-job training a step further.
The digital maps are often coupled with video clips of interviews with
engineers explaining how they perform the process at hand. Engineers'
notes are also included. The experts speak on screen about how they arrived
at the best method for performing their particular process.
The entire knowledge preservation program is a lot like an oral history.
You want to record what people know while they're still around
to tell you about it. In this case, you want to catch engineers in order
to pick their brains before they retire.
The program gives older engineers a way to record their methods and talk
about how they discovered the best way to carry out an engineering process.
It also gives Honeywell a way to archive a tip sheet on a process that
the company no longer runs. In the defense industry, you can never be
sure a manufacturing method is really retired, even if it hasn't
been run in 15 years, Maurer said.
Human memory being what it is, engineers can't be expected to pick
right up and start production of a part they haven't worked on
in more than a decade. An archived process map gives them a quick tutorial,
ensuring that they won't have to reinvent the wheel while getting
up to speed.
Maurer's department documents about eight to 12 processes a year,
most recently the company's hydroforming method. Documentation
starts with the computerized maps that go over a process in minute detail,
covering the critical steps.
"You're told to mix something, but what exactly does Ômixing'
mean?" she added. "It might mean shake it 20 times just
so.
"That's the kind of knowledge the experts have and it may
go out the door with them," she said. "Or it may get lost
if we're not running the process anymore, and then we bring it
back."
Maurer's team documents only advanced engineering and manufacturing
methods that, through the years, have become Honeywell signature processes.
"If we do something unique with gold plating, we show an operator
putting a part in a bath while a narrator gives step-by-step instructions,"
she said. A plating engineer's notes are included on screen, telling
you why he does a certain thing a particular way.
"The material engineer's notes talk about how they had to
buy a certain material, that they tried another material but it reacted
differently," Maurer said. "Then we'll have a chemist
talking about how he analyzes the solution."
Other mixed media presentations detail the company's fiber-optic
polishing, plastics molding, machine gear-hobbing, and plating processes.
 |
| Retiring Honeywell engineers can
pass on hard-won job know-how to younger employees via presentations
that include part drawings. |
But getting those presentations pinned down isn't easy. Especially
when it comes to engineers, who are generally a retiring lot that shy
away from being videotaped. They're often self-conscious when speaking
of something they do every day; they may not consider their information
noteworthy, Maurer said.
But once those engineers work with the videographers and media specialists
who put together the program, they often jump at the opportunity to document
another part of their job, she added.
"The engineers can leave happy without feeling like they're
walking out without telling someone how they did something," she
added.
The training department has told her that the mapping and media programs
take months off training time. But it has another use as well: tracking
what others might think of as an outdated method. Those outdated methods,
after all, can be needed on a moment's notice.
For example, Honeywell hadn't built a particular cable in several
years. Luckily, the knowledge preservation team documented how it had
been made. Engineers referred to those video clips and documents when
they needed to reintroduce the cable.
"The soldering was unique. How it was put together was unique.
The engineers could refer to information about that and learn from it."
Maurer said. "We didn't have to do as many development parts."
Keep Information
Handy
Honeywell found its own way to preserve engineering knowledge through
a blend of technologies and media. Other companies that want to archive
mechanical engineering information may wish to take advantage of certain
features now included in many computer-aided design systems. Most software
vendors refer to these features as knowledge capture capabilities.
For instance, the CAD program Catia version 5, from Dassault Systèmes
of Paris, gives engineers the ability to capture their best practices,
as Ed Ladzinski of IBM said, or to work under the guidance of a company's
best practices. Ladzinski is worldwide analysis and knowledgeware domain
manager for IBM in Armonk, N.Y.
Best practices detail how a part is best made, a concept based on years
of experience and on corporate-standard specifications.
"An engineer will make something and it has to go through levels
of approval," Ladzinski said. "The engineer has to make
sure company practices are followed and particular materials are used."
Corporate standards are programmed into the CAD system's knowledge-capture
element so an engineer doesn't have to design parts anew every
time. If a part needs to be made of a particular material, the CAD system
lets an engineer know that. He won't be able to choose any other
material.
Engineers also use that knowledge-capture feature to optimize parts. Older
engineers may have programmed the CAD system with information they've
gleaned over the years. A part might have a minimum weight requirement,
for example. Design parameters would automatically nudge the engineer
to stay above that minimum weight, Ladzinski said.
His system's knowledgeware feature also profiles an entire process.
A company like Boeing, for instance, can store information on how it has
created an airplane wing, so that it can be duplicated in the future by
other engineers. This feature is accessed through the CAD program's
attendant product life-cycle management system, Enovia, from IBM or SmarTeam
from Dassault Systèmes. That feature also helps automate the design
process to ensure that parts are designed consistently.
"The designer inputs critical parameters for a part he's
designed, and then an Excel spreadsheet will show him where he's
exceeded design parameters or where the cutter can't make the cut,
so it can't be manufactured," Ladzinski said.
That information about the cutting machine may have been included by an
engineer who has struggled with the machine in the past, and has learned
the hard way about what it can and cannot do. Another engineer won't
have to learn that same lesson the hard way.
When finances and time are a considerationas they always are in
the business worldyou only get one time to learn the hard lessons.
Companies recognize that. Executives understand that keeping engineering
information at the ready that once might have been considered outdated
speeds production and gives new engineers a leg up. After all, being the
new person is hard enough.
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