new ideas in edm spring 2004 - wire edm | die sinker … 6 new ideas in edm competing with f o r...
TRANSCRIPT
Spring 2004
www.charmillesus.com
We Push the Limits of EDM
www.charmillesus.com
The New Generation of Diesinkers:
It Takes MoreThan Speed
To Compete
New Ideas in EDM
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The time it takes to produce a mold has been decreased
in the last few years. Customers of mold houses have
demanded that molds be produced faster and more
efficiently, so that the product reaches the market quicker. In
response, some EDM manufacturers have introduced new
diesinkers that cut faster. However, is this all a mold shop
needs today?
In the midst of a challenging economy, mold shops have been
forced to look for new ways to compete, not just with
American mold shops, but also with competition overseas. This
debate over whether speed is all that is required for a
diesinker to be competitive is pervasive among builders.
However, the need to remain competitive has prompted mold
shops to consider other factors, such as features and control
capabilities of a diesinker, more closely than ever with several
questions.
1. Is this control easy to understand and navigate?
Most controls found on CNC diesinkers can perform the
general tasks that are required to produce molds. However,
user friendliness and navigation have become greater con-
cerns. As more and more operators retire, a new generation
of operators joins the ranks—a generation trained on
Windows™-based PC systems, resulting in the need for
builders to redesign their controls, thus bringing greater
benefits to the customer. Windows™-based operating systems
offer an easily understood graphical interface with interactive
navigation. Some EDM manufacturers have gone so far as to
include the operating, maintenance, and part manual on the
screen. These manuals use a web-type browser, which
incorporates images with the text and simplifies the
research/inquiry process.
Charmilles’ Ro b o f o r m
550 Fe a t u res Dynamic
P rocess Contro l
GENEVA-BASED CHARMILLES HAS UNVEILED THE NEW ROBOFORM
550 series, a die-sinking EDM that integrates a new generation
of numeric controls designed to ease use and improve efficiency.
Similar in most aspects to the previously released Roboform 350,
the new machine can handle much larger parts than its
counterpart. The ample work area accommodates workpieces
up to 47.24" wide by 33.46" deep by 15.75" tall, weighing up
to 3530 lbs. The Roboform 550 can be equipped with a
64-position automatic tool-changer.
To best serve the end user, Charmilles referenced the results of a
recent survey of moldmakers while designing the Roboform 550.
The effort resulted in Dynamic Process Control (DPControl), a
system directly involved in the manufacturing process. The
system features interface functions and screen ergonomics that
provide unparalleled performance and operator comfort .
DPControl incorporates interactive graphics and
embedded e-documentation. Since the system is built
around a standard windows platform, the Roboform
550 series is compatible with existing system
architectures. System integration eliminates the need
for further investments or special training and the
ability to operate on a PC allows for offline
programming. Already a standard in the industry,
user-friendliness has been further enhanced to satisfy
the demand for operator convenience.
With the new system, graphics illustrate all machining
operations, allowing the operator to instantaneously
grasp the details of the machine’s operation. On occasions
requiring more detailed instruction, electronic manuals allow the
operator to instantly receive easy-to-understand information
about the current function by simply pressing the F1 key on the
keyboard. DPControl also suggests ideal electrode undersize,
rationalizes the number of electrodes needed and organizes job
sequencing according to preset priorities. Machining status
information is transmitted to the operator via SMS and full
reports are automatically generated for job evaluation. Contact
your local distributor, or Charmilles at 1-888-CTC-1EDM, to
schedule a demonstration.
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2. Will this control communicate with other equipment
in the shop?
In this day and age, a diesinker must produce more parts per
day than ever before and automation is one way to increase
productivity. Manufacturing a robot is not a problem for most
EDM manufacturers, however, the robot does not
complete the automation process for most diesinkers. In addition
to the robot, many customers discover they need a control that
can incorporate other equipment such as a CMM, as well as
other PC’s for monitoring and programming. Today, the most
efficient way to locate workpiece locations on pallets and elec-
trode offsets is to use a CMM. To fully automate the process, the
CMM must then communicate this information to the EDM
diesinker control for each of the jobs in the robot or in a tool
changer. Still another way to maximize a diesinker is to know
the status of the machine at all times, which can also be
accomplished using a machine control that can alert the
operator either via phone or e-mail with detailed information
as to any malfunctions .
3. Can this EDM diesinker help me organize electrodes
and workpieces for easy to complex jobs?
Typically, controls today help the operator calculate the correct
generator settings for a burn. However, few controls can truly
program everything required to complete a job. One benefit
offered by more advanced controls is the ability to assist in the
organization of electrodes and workpieces. Once the informa-
tion for a particular job has been obtained, these controls can
suggest the best course of action to produce the job. Should the
operator determine that this course of action requires adjusting,
the control can then assist the operator with adjustments.
The next time you’re in the market for a diesinker, consider the
speed at which the machine burns ribs, cavities and subgates.
However, don’t overlook the importance of an advanced
control. You might just find a Windows™ PC control with features
and options that your operator will use to keep the machine
burning and, in turn, keep you productive and competitive.
Why Settle
for Less?
Make Sure Your Charmilles Remains A Charmilles
AGIE CHARMILLES Group
Obtain information about yo u r
O RI GINAL wear parts by
contacting Charmilles.
80 0 . 28 2 .1 3 36 ext. 153 or 154
or by e-mail:
c o n s u m a b l e . s a l e s @ ch a r m i l l e s u s. c o m
by: Eric Ostini, Product Manager for Charmilles
You expect the best perf o rmance from your ED M
machine. Tests have proven that using Charmilles rec o m-
m e n d ed consumables enhances the perf o rmance of your
machine. The service life of the “imposters” is disappoint-
i n g. Enjoy the quality, reliability and profitability you have
grown to expect from a Charm i l l e s.
www.charmillesus.comNew Ideas in EDM
4
M i k ron HSM 300
G raphite Ma chining Like No Other
TOO OFTEN MACHINING OF GRAPHITE ELECTRODES IS SEEN
in die/mold shops as a necessary evil. This task is
relegated to an old or "throw away" vertical
machining center. These types of machines with spindle speeds
not higher than around 6,000 rpm are extremely slow and
woefully inadequate when it comes to producing high quality
e l e c t rodes for EDM diesinking. With this appro a ch, the
downstream effects on EDM, manual polishing
operations and lead times are ignored or
overlooked in many shops.
Investing in a quality high speed graphite
machining center to complement EDM diesink-
ing operations can dramatically reduce lead
times and costs, improve quality and enhance a
shop’s capability to solicit more complex and
demanding work, which to a large extent is not
sourced overseas. In short, in today’s economic
environment, it can make the
difference to a shop’s very
survival.
The Mikron HSM 300 High
Speed Machining Center can
help make this differe n c e .
Graphite electrodes can be
machined up to 5 to 10 times
faster than conve n t i o n a l
methods. Electrodes can be
p roduced with outstanding
finishes and accuracy, which
can dramatically impro ve
EDM burn and manual
polishing times. More consis-
tent and repeatable multiple
cavity molds can be made.
Electrodes can be machined with thin ribs and fine details that are
difficult to achieve conventionally. More complex electrodes can
be produced by combining multiple details, thereby reducing
setup and burn times for EDM diesinking. Investing in the HSM
300 can yield many benefits and these must be examined from
the viewpoint of the whole process chain to manufacture a die or
mold.
With respect to performance and accuracy, the
Mikron HSM 300 is unmatched in the industry in
terms high speed machining of graphite
electrodes. With an extensive standard equipment
package, including a high efficiency graphite
e x t raction system and a standard laser tool
measurement system, the HSM 300 offers out-
standing value.
The capabilities of the HSM 300 are clearly
d e m o n s t rated in the sample
needle electrode shown (see
image above). The electrode, size
2" by 2," has 3 rows of posts,
3/8" height. The row of posts in
the foreground is triangular in
shape, with each side measuring
.014." This electrode is machined
on the HSM 300 in 18 minutes flat
with an excellent surface finish
and absolutely no breakage of
the needle-like posts.
Contact your Charmilles/Mikron
distributor or call 1-888 - 28 2 -
1336 for a consultation of how
the HSM 300 can make a
d i f f e rence in your die/mold
manufacturing operations.
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CHARMILLES’ RECENTLY ATTENDED THE 2004 MEDICAL DESIGN AND
Manufacturing West show to present attendees with informa-
tion on the Robofil 240cc/440cc. The show was one of five
design and manufacturing trade shows simultaneously held at
the Anaheim Convention Center on January 6 – 8. Utilizing
the entirety of the center’s 800,000 square feet of exhibition
space, upwards of 40,000 OEM buyers attended.
Charmilles’ Robofil 240cc/440cc uses the ‘zero voltage’
CC-generator to increase machining speed while preserving
surface integrity.
Ideal for medical applications, the CC-generator prevents
oxidation on titanium and maintains surface integrity free of
brass and zinc materials originating during the cutting process
from the wire electrode.
The 240cc/440cc contains ThermoCut, a high-speed,
maintenance-free wire threading system that stretches and
cuts wire under the effect of heat, regardless of wire
diameter and material. The machine features collision
protection on all five axes, which prevents costly repairs
during manual or unattended operation.
Robofil 240/440cc
P resentation Given at
2004 Medical Design &
Manufacturing West show
By Mal Sudhakar, Vice President, Mikron
Trust Our Track Record
• T h e rmocompact, supplier to Charmilles for more than 20 years.
• Full range of products supplied including SWXcc, SWX, Thermo A, Brass, etc.
Pl e a se con t a ct : T he rmocompact • 30 Taun t on St . • Pla in v i l l e , MA 02762 • PH : 508 .695 .0707 • FAX : 508 .695 .4404 • E -mai l : d l ync h@fsp- o ne. c om
www.charmillesus.com
6
New Ideas in EDM
Competing withF o reign Ma n u f a c t u r i n g
With the recent rise in competition from relatively cheap foreign production,
many machine shops have found themselves struggling to find ways to
remain profitable. Liberty Machine, Inc., located in Arab, Alabama,
responded to the challenge by identifying and concentrating on areas in
which they held a clear advantage over foreign rivals. Over the past year, both the shop and its
sales volume grew in a way that demonstrates the potential for success, even in hard times.
Robert and Kenny Cleveland founded Liberty Machine in
1984. Initially, the father and son duo comprised the shop’s
entire workforce. Five years later, the company moved to a
new building and hired its first employee. Over the next
decade, the shop continued to expand and its customer base
grew to include such clients as Boeing, NASA, Southeastern
Technology and Wright Medical Technology. As Liberty
Machine gained experience, it also gained a reputation as a
shop willing to try new things and make them work.
“ We’ve really worked hard to make sure that our group of
employees has a broad variety of capabilities," says Kenny,
who serves as Liberty’s president. "It’s given us the ability to
go after the difficult and complicated jobs in addition to more
standard work.”
It is this ability to perform more specialized work that has
allowed Liberty to rise above some of the difficulties
encountered by the industry as a whole. As more and more
of the standard work went overseas, Liberty began to feel the
effects. In 2002, conditions forced the shop to lay off
employees for the first time in its history.
In an effort to recover, Liberty identified areas in which they
excelled that were unlikely to be sent overseas.
“Medical parts have made
up an ever-increasing per-
centage of our workload,”
explains Kenny. “They
require high levels of
tolerance and extreme
accuracy, and need to look
good as well, which means
they take a little more time.
The quality levels required
make them unlikely to go
overseas and time-
constraints make them
undesirable for a lot of
shops here.”
Liberty began to pursue
more medical work and in
early 2003 earned a con-
tract to manufacture a large
quantity of orthopedic
femoral cutting blocks with
a series of six .060” slots. At the time, the shop did not have
wire EDM capable of performing the work as efficiently or
accurately as required. After reviewing possible options ,
Liberty purchased three Charmilles ROBOFIL 240s.
”When you choose equipment, you have to consider both the
quality of the product and the service that comes along with
it,“ says Kenny. ”We knew the Charmilles machines provided
the best value for our shop.“
The new machines arrived and Liberty established an assem-
bly line with 2 slots being burned at each machine. The shop
soon discovered that the ROBOFIL 240 was so easy to use
that one operator could run all three machines and still have
time to inspect the final parts.
The efficiency of the Charmilles machines proved to be so
much of an advantage as to warrant major changes at
Liberty. To fully maximize the benefits of the ROBOFILs, the
shop added weekend and night shifts and have since had no
trouble finding work to fill the expanded schedule.
“The work’s still out there if you can do a high quality job and
have a fast turnaround time,” explains Kenny. “There’s been a
movement towards reduced inventories by a lot of our cus-
tomers. Now we might run twenty or twenty-five parts for a
customer that used to order lots of one hundred. The fact that
our Charmilles machines are around forty percent faster than
our old wire EDM has helped us adapt to this shift.”
All of this translated into a good year for Liberty. A twenty
percent increase in sales allowed the shop to rehire all of the
workers laid off in 2002
and also add five new
positions to their workforce.
As the shop continues to
grow, they already know
where they will go when
they need to expand their
EDM.
“Once our ROBOFILs were
set up, they’ve run 24/7
for seven months without a
single problem,” says
Kenny. “When we need to
expand our EDM, we’ll be
looking to Charmilles.”
While foreign competition
continues to provide new
challenges to North American manufacturers, shops like Liberty
Machine show that hurdles can be overcome. Those at Liberty
see continued growth in the company’s future and, with the
quality of employees and machinery they employ, they have
every reason to.
www.charmillesus.comNew Ideas in EDM
THIS IS A SNAPSHOT OF HOW CHARMILLES MAINTAINED THE
Market Leader position during the challenging year2003 and plans to strengthen that position in 2004.We appreciate your choosing Charmilles EDM’s andwanted to keep you informed.
Summary 2003
1. CT-US maintained its #1 position in N. Americadespite lower orders, consistent with the 8.5% reduction in the U.S. machine tool market.
2. We ended the year strongly, shipping 35 machines inDecember alone.
3. CT-US was profitable (according to the IRS!) and had positivecash flow.
4. We maintained or improved customer service levels: 95% ofservice calls taken live by a trained service engineer, 99% ofspare parts shipped the same day, 60 service engineers at 30 North American locations.
5. We maintained, in the worst machine tool market in 70 years,CT-US’ capacity to meet your future demand as the marketrecovers. (13 more service engineers than during the ’97-’98market peak!)
2004 Outlook
All indications are that 2004 will see acontinuation of the late 2003 recovery:
1. Preliminary statistics from NTMA(National Tooling & MachiningAssociation) and AMBA (AmericanMold Builder’s Association) surveysshow a dramatic upswing in businessconditions at tooling and machiningshops in December 2003 relative toJuly to September 2003.
2. The improved tax structure, low interest rates and the lower dollar allsuggest continued growth.
a. The Robofil 240cc and 440cc, the world’s first high speedwire EDM’s, are meeting or exceeding users’ expectations.
b. The new Roboform 350 and 550 combine the most modern CNC control with the highest performing generator in the industry.
Conclusion: Charmilles maintained or improved customer support and resources through the manufacturing depression .N. American Manufacturing and Charmilles’ business are nowboth recovering strongly. Call Charmilles, 1 800 CTC-1EDM, oryour local Charmilles distributor to discuss how the newest models can help you get more than your share of the growing market!
Harry C. Moser
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2003 RE V IEW &
2004 OUTLO O K
Winner, European HighSpeed Machining
Award 2002
AG IE CHARM IL L ES Group
G EORG FIS C HER + G F + M a n u f a c t u ring Tec hn o l o g y
www.mikron-us.com
The award-winning HSM 400 features a standard 7-position
palletchanger that allows you to run 24 hours a day, 7 days a
week, whether it is machining molds, dies, electrodes, or high
precision parts.
The unique polymer concrete bridge design provides superior
rigidity, vibration dampening and
thermal stability, resulting in
outstanding surface finishes,
accuracy and tool life.
Powerful vector spindles up
to 60,000 rpm,
combined with high
axis acceleration of
1 .7 g, deliver
exceptional high
speed machining
performace.
Contact us to join the
winner’s circle.
H SM 400 from Mikron
560 Bond St.
Lincolnshire, IL 60069
Tel: 1-888-282-1336
CHARMILLES WILL SHOWCASE MACHINES AT BOTH THE
WESTEC and EASTEC national manufacturing shows. Both
events are cosponsored by the Society of Manufacturing
Engineers, the American Machine Tool Distributors Association
and the Association for Manufacturing Technology.
The Roboform 350 diesinking EDM will be featured at the
40th annual WESTEC show to be held at the Los Angeles
Convention Center from March 22 to March 25. Charmilles’
presence at this show will be found in booth #3616.
The machine features Dynamic Process Control (DPControl), a
system designed to be directly involved with the manufactur-
ing process. Based on a standard Windows platform, the
software is easily integrated into existing system architectures.
The Roboform 350 will also be on display at the 25th annual
EASTEC show located at the Eastern States Exposition
Grounds in West Springfield, Massachusetts from May 25 to
May 27. The Robofil 240cc and Brother HS70A wire EDMs
will also appear at the show. Charmilles will be located in
booth #5345.
The Robofil 240cc uses the ‘High Speed’ CC generator to
increase machining speed while preserving surface integrity.
The machine contains a CNC based on the standard
Windows NT multitask operating system with an industrial
grade TFT touch screen and standard keyboard. The 240cc
also implements ThermoCut, a high-speed, maintenance-free
wire threading system that stretches and cuts wire under the
effect of heat.
The Brother HS70A wire EDM features the most compact
body in its class and a workpiece capacity of 770 lbs.
Automatic wire threading with a threading time of 15 seconds
and a new spark generator help increase productivity.
The machine also contains a new user/machine interface
with 10MB memory, 3D graphics and a 12.1" large
color display.
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C h a r m i l l e s
Participates in
Trade Shows on
Both Coasts
www.charmillesus.com
TRADING IN YOUR ROBOFIL 290, 300 OR 310 TOWARDS A NEW ROBOFIL 240CC OFFERS ADVANTAGES THAT WILL INCREASE YOUR
shop's productivity and performance including significantly reduced cutting time and improved accuracy. The Robofil 240cc
features submerged machining, and promises a better surface finish and 3D graphics. The patented CC-generator
eliminates bluing on titanium and offers improved PCD cutting technology. And, the ThermoCut autothreader reduces
thread time by more than a minute. Check the facts...
Given the facts, can you really afford to wait? For more information on trading in your machine, please call your local distributor,
or contact Charmilles directly at 847-955-7112 or [email protected].
11
It’s Time to Trade Up
New Ideas in EDM
Some Ma r k e t i n g
Thoughts – Wh o
Should Yo u
Ta rg e t ?
10
Written by Bruce Braker, President of Tooling &
Manufacturing Association
Charmilles Mikron Hosts HSMSeminars Nationwide
Charmilles Mikron will host six HSM seminars at various
locations nationwide during 2004. The HSM Seminar is an
intense one-day information-packed program run by
expert industry engineers for both prospective users and
current practitioners of high speed machining. The seminar
will cover the basics of the HSM cutting process and the
benefits of high speed machinging in a wide range of
applications.
HSM seminar locations:
Lincolnshire, Illinois (Charmilles)
Holliston, Massachusetts (Mikron)
Meadville, Pennsylvania
(Precision Manufacturing Institute)
Yorba Linda, California (Charmilles)
Lincolnshire, Illinois (Charmilles)
Holliston, Massachusetts (Mikron)
THOSE DOMESTIC MANUFACTURERS WHO WANT TO STAY
domestic have to pick their customer industries and com-
panies very carefully so they don’t find themselves
serving an industry that low cost developing countries or
others are likely to target. The small appliance industry, toys,
consumer electronics, and other such goods are largely
produced elsewhere. We’ve been losing those products for
years.
Think about comparative advantage criteria for products and
process that can best be done in America. Following are
criteria to consider:
1. Highly engineered and complex
2. Heavy and/or difficult to ship cost effectively
3. In demand in both the domestic U.S. market and for export
4. Industrial or commercial, not consumer
5. Produced with a high level of automation, capital intensive
manufacturing
6. Produced primarily with skilled labor
7. Products with unique high tech applications
8. In demand in the U.S. for security reasons -- defense,
homeland security, NASA, etc
9. Construction related
10. Packaging related
11. Energy production related
12. Medical related
13. Automation related
14. Transportation industry related
15. Aerospace related
16. Defense related
17. High value added
18. Short run and/or JIT production
19. Products needing considerable service support
20. Products requiring high maintenance
21. Production requirement of extremely tight tolerances
22. Subassemblies, not just discreet parts
23. If not subassem-
blies, kits of parts
that go into a
subassembly
24. “Family of Parts” opportunities
25. Coupled with high valued-added services
26. Subject to frequent change and revisions requiring high level
and frequent communications
27. Short lived
products
Focus on the criteria you believe describes a good customer
industry or product and then target that. Crain’s Chicago
Business recently reported on the strong demand for
Caterpillar’s $500,000 electrical generators. We read that the
town of Geneva bought a number of those generators from Cat
even before the outage in the Northeast. There’s a product that
meets many of the criteria listed above.
3/25/04
4/15/04
4/22/04
5/13/04
6/8/04
10/28/04
For registration information please call
1-847-955-7112. Visit www.charmillesus.com
for a complete list of seminar topics.
Charmilles to Participate in META L FO RM - Louisville SymposiumGisbert Ledvon, marketing manager for Charmilles
Mikron US, has been selected to speak at the upcoming
METALFORM-Louisville exhibition, scheduled to take place
March 30 – April 1 in Louisville, Kentucky. Mr. Ledvon’s
presentation, entitled ‘How to Make Powder Metal Dies
More Efficient Using New Die Sinking EDM Technology,’
will focus on recent advances in EDM, such as high speed
EDM, new generator technology and productivity improve-
ments resulting from twin-wire EDM. The session will also
encompass the basics of high speed machining and its
application in the creation of metalforming tools.
"Technology now moves at such a quick pace that many
significant improvements can be realized in the space of a
year," explains Ledvon. "Hopefully those who attend our
presentation will walk away with a better understanding of the
recent developments in EDM and some new ideas to improve
their companies’ performances."
METALFORM-Louisville is the first regional METALFORM show
to be put on by the Precision Metalforming Association after
over 20 years of annual national exhibitions. In an effort to
best serve those in the metalforming industry, the association
has now made the national show a biennial event, with
regional shows running in the off years. Charmilles’
presentation on EDM technology will be held at
11:30 a.m. on April 1.
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