Advanced Search

It's easy to find articles, news, and product information from our publications. Refine your search by entering a title, author, publication name, or technology.

571 results

Ask the Stamping Expert: Do die repairs require full lockout/tagout?

April 18, 2016

By:

Editor’s Note: Regular readers of this column might recognize that Mr. Cattell answered a similar question in the May/June 2010 issue of STAMPING Journal®. Since this question reflects a common concern among stampers—and is asked of Mr. Cattell quite frequently in his work—we felt it would be beneficial to address the issue again.

Continue Reading

Ask the Stamping Expert: How can I form titanium successfully?

April 15, 2016

By:

Q: We are getting more and more inquiries for components made of titanium. We have never worked with this material. Any advice? A: Titanium can be cold- or hot-formed on standard equipment using techniques similar to those used on stainless steels, but you need to consider two main issues: The...

Continue Reading

Ask the Stamping Expert: How can I get a die to run in two different presses?

April 11, 2016

By:

Q: When I move a die from one press to another, the die runs fine in the first press but will not run in the second press. The presses are the same size, stroke, and speed range, although one is a few years older than the other. What can I do to ensure the die runs in both presses. A: There are...

Continue Reading

Ask the Stamping Expert: Is there a check list for setting progressive dies?

April 1, 2016

By:

Q: We are new to die setting. Do you have a check list that could help us with different progressive dies? Can you recommend any literature on the subject? A: First, I do not know of any comprehensive literature. Most literature tends to focus on an individual subject rather than cover the overall...

Continue Reading

Ask the Stamping Expert: How can we achieve fast punch changeout halfway through a run?

April 1, 2016

By:

Q: I’m a diemaker for a Detroit Three automaker. We have a job on which we have to change punches halfway through the run. Changing the punches is a lengthy operation and involves quite a bit of downtime. Does anyone in the industry make an automatic or semiautomatic punch removal system that we...

Continue Reading

Ask the Stamping Expert: How can I reduce snap-through condition effects?

March 31, 2016

By:

In the May/June 2012 “Ask the Expert” column, you discussed the causes of the large vibrational energy wave that must be dissipated by the press structure beyond the shear loads. Is there any way to reduce the vibration? A: Many lamination and blanking dies incorporate moveable stripper...

Continue Reading

Ask the Stamping Expert: Why do press and die problems occur at lower-than-capacity press speeds?

March 31, 2016

By:

Q: To improve efficiency and reduce cost in our newly acquired high-speed blanking operation, we have increased press speeds from 225 SPM to 450 SPM. After several successful months, we are experiencing a high number of new press and die problems. The presses are capable of speeds higher than 500...

Continue Reading

Ask the Stamping Expert: Can I pierce material in a progressive die in the opposite direction?

March 31, 2016

By:

Q: Do you have much experience with piercing material in the opposite direction than usual in a progressive die? In other words, the slug goes through the punch shoe. A: Yes. This is very doable and not uncommon. I assume you need to do this because the piercing direction is a part-functional...

Continue Reading

Ask the Stamping Expert: How do I hold washers in the strip in a compound die?

March 30, 2016

By:

Q: Do you have suggestions for holding washers in the strip in a compound die? High-strength, low-alloy material properties change from heat to heat, periodically causing parts to drop out of the strip. For this reason, we blank up and use a knockout bar to eject the parts. A: Two significant...

Continue Reading

What’s sizzling in hot stamping?

March 28, 2016

By:

This multisource article touches hot stamping's growth and new technologies and approaches to its further development, including pressure controlled hardening, hot forming of aluminum and magnesium, the option of using a servo-mechanical press that has been modified for hot forming as well as a hydraulic press, and secondary processing performed in-die to avoid having to use a laser cutting machine for trimming.

Continue Reading

Die coatings morph to help form AHS aluminum

March 21, 2016

By:

A new die coating has been developed to help alleviate complications of forming high-strength aluminum, such as sticking and abrasion.

Continue Reading

Tools for troubleshooting

March 17, 2016

By:

Trial and error is a difficult, time-consuming, and costly way to try out new parts or find the sources of problems in a stamping operation. Vision systems, “action” cameras, die design simulation, and spectroscopic metallurgy analyzers for material analysis can help stamping manufacturers make adjustments on the front end to save time and money by several magnitudes on the back end.

Continue Reading

Ask the Stamping Expert: What do the various press styles have to offer?

March 11, 2016

By:

Q: I am having a problem stamping a shallow drawn cup about 0.75 in. deep from 0.045-in. 304 half-hard stainless steel. I’m using a mechanical press. What do other press technologies have to offer? A: Years ago I wrote a brief on the major differences between mechanical and hydraulic presses....

Continue Reading

Ask the Stamping Expert: The 10 Tooling Laws explained

March 11, 2016

By:

Q: In your last column you listed the 10 Tooling Laws. I had never seen these before. Can you please explain each law in more detail? A: I drafted these laws years ago out of necessity. After more than 35 years of experience in the stamping field - - many as a master toolmaker, then as a...

Continue Reading

Ask the Stamping Expert: When is a WEDM purchase justifiable?

March 11, 2016

By:

A stamper is getting pressure from customers to add WEDM to reduce costs. Thomas Vacca advises him on how to justify the purchase.

Continue Reading