March 6, 2015 | By Art Hedrick
In Part I of this article, which appeared in the January/February 2015 issue, I discussed the first two basic steps in troubleshooting: Identify problems with the part and verify the die and press setup parameters. Following are the remaining seven steps in the process. Step 3—Reassess and...
March 6, 2015 | By Thomas Vacca
Q: We recently received an order for domed spring washers stamped from 0.0010-inch-thick 301 1/2 hard stainless steel. The parts are about 0.250 in. OD and have two 0.006-in.-diameter pierced holes on a 0.150-in.-dia. circle centered on the part. We usually do not stamp anything less than 0.010 in....
Lubrication plays an important role in stamping, as it reduces friction at the tool-workpiece interface. Reducing that friction also reduces die and tool wear in large-volume production, which in turn increases tool life. It also allows smoother flow of the sheet material into the die cavity and...
January 29, 2015 | By Dan Davis
Waukesha Metal Products, a metal fabricator and metal former based in Sussex, Wis., wasn't going to survive in the long run being a simple stamper of simple metal parts. It needed to reinvent itself and constantly look for ways to evolve if it were to grow and improve its chances of success in the face of more demanding customers. Its in-house knowledge and talent, investment in capacity, and contributions to the overall manufacturing cause are improving its long-term viability. They also have helped the company earn the 2015 Industry Award from The FABRICATOR.
January 22, 2015 | By Kate Bachman
SolidWorks-based Logopress3™ software with blank prediction, flattening and unbending, round draw, dynamic interference detection and animation, and strip layout capabilities helped Universal Metal Products accelerate its die design and improve accuracy.
November 26, 2014 | By Kate Bachman
Sometimes it’s the small items that make your workday easier. Standard die components with incremental improvements, such as roller cages with cylindrical rollers, and special gadgets, such as auto-indexing dimplers, can help smooth the stamping process and extend uptime.
November 25, 2014 | By Jim Finnerty
Press monitoring systems improve overall equipment effectiveness (OEE) and help identify downtime culprits. Press controls track when the machine is running and when it is not. It counts machine cycles, and can detect both empty strokes and cycles when die protection or tonnage faults exist.
November 24, 2014 | By Jim Ward
Advancements in straighteners help stampers handle advanced high-strength steels on coil feed lines.
October 6, 2014 | By Kate Bachman
Wiegel Tool Works stamps large, complicated automotive circuitry in high volumes for perfection-demanding applications. The manufacturer needed a fast press with a large bed and adjustable-stroke capabilities. It had a specially designed mechanical press custom-built for its unique needs.
What makes a hydraulic press equipped for hot stamping? Access for auxiliaries and process equipment, a rapid deceleration rate, correct tonnage, and off-center load handling are all considerations.
June 5, 2014 | By Tom Vacca
Q: I manage a toolroom of 15 toolmakers. We supply the automotive connector industry primarily. I am looking for best practices on progressive-die maintenance. Do you recommend any die maintenance procedures? A: I am literally inundated with questions on the proper way to maintain progressive...
May 12, 2014 | By Kate Bachman
Quick die change, introduced decades ago, has become a staple of lean manufacturing in most stamping shops. QDC equipment itself is being upgraded and their lines expanded to meet evolving requirements for speed and safety, including force evaluation systems on magnetic die clamping, auto-positioning, auto-clamping, thinner magnetic clamping plates, trackless carts, and automated storage and retrieval systems.
May 5, 2014 | By Jim Landowski
Servo technology has been has been used as the drive system of servo-mechanical presses since 2000. Today stampers need to look at a servo press as part of a manufacturing system rather than just a standalone machine to maximize their cost-saving benefits.
March 5, 2014 | By Kate Bachman
Established and growing Jagemann Stamping Co. recently expanded its facility in the charming Great Lakes coastal town of Manitowoc, Wis., to facilitate its continuous growth. The multicapable manufacturer of deep-drawn, progressive stamped, and fineblanked components drew on its ability to diversify to grow and prosper, reaching $80 million in annual sales and expanding by 50,000 sq. ft. and 130 employees last year.
March 3, 2014 | By Bruce Konopinski is
The tried-and-true approaches that worked well to stamp first-generation steels are not as effective for stamping advanced high-strength steels (AHSS). Tests were conducted to determine optimal punch-to-die clearances, shear angles, and punch angles. Test results indicated that 12 to 15 percent punch-to-die clearances and -15- to +15-degree shear angles provided the longest punch and die life, and a 7-degree conical shear angle created the smallest burr growth.