December 15, 2016 | By Kate Bachman
Colorado stamping manufacturer Qualtek Manufacturing installed a solar array on its warehouse and office with a wind power purchase agreement, and replaced inefficient heat treatment furnaces.
December 15, 2016 | By Michael Sweet
Software integration that links toolroom data and processes with the rest of the company can uncover time savings, harmonize schedules, and unleash a wealth of information from which management can improve the business.
Editor’s Note: Part II of this article, which will appear in the January/February 2017 issue, will discuss the results and case studies of the newly introduced inverse analysis method for improving springback prediction. In the automotive industry, the use of advanced high-strength steels (AHSS)...
December 2, 2016 | By Art Hedrick
Before receiving a contract to design and build a die, the building shop must quote a price to the customer. Because every die usually is a one-of-a-kind tool, the process of quoting tooling cost is not always easy. The person estimating this cost must have a good understanding of sheet metal...
December 2, 2016 | By Thomas Vacca
The “10 Die Design Laws,” which appeared in the September/October 2016 issue, are most effective when used along with a continuous improvement approach. At the end of every tool build and final development cycle, the die design team should review what went well and build on those strengths, but...
November 18, 2016 | By Kate Bachman
Of all of the roles 57-year veteran tool- and diemaker Paul Rettberg has had, the one he has enjoyed the most is the one he fills currently … as a teacher.
November 18, 2016 | By Bob Gunst
Compact in-die transfer tooling technology brings the flexibility of a press-mounted transfer system to small-press and small-part applications. The small transfer system mounts directly to the stamping die, becoming part of the die. The in-die transfer tool is set up and run in continuous mode, just like a progressive die.
November 18, 2016 | By Kate Bachman
If an ounce of prevention equals a pound of cure, what is it worth when you’re stamping thousands of tons? To Rockford Toolcraft, it’s priceless. The $100 million annual sales stamping manufacturer specializes in stamping heavy-gauge material up to ¾ inch thick. Its maintenance, repair, overhaul program must be topnotch to keep operations moving. The millwrights and electricians who maintain, repair, and overhaul the 60 massive, high-tonnage mechanical presses are highly skilled, very experienced, and ready at a moment’s notice to get the presses back on track ASAP. Here’s how the company keeps its fleet of presses humming.
November 14, 2016 | By Bill Frahm
Metal formers are more than just suppliers of stamped parts. They understand how material reacts during the forming process and how downstream processes can be set up to handle stamped parts efficiently. This is valuable knowledge and should be shared with customers to solidify relationships and possibly boost revenue opportunities.
Metal spinning and flow forming are similar processes. In some respects, flow forming can be considered a specialized kind of metal spinning. But the two processes are different, and each is designed to meet different application requirements.
October 25, 2016 | By Daniel J. Schaeffler
New, stronger steels have forced metal formers to rethink what they have always done in the pressroom. Traditional rules are no longer applicable across the board. The case of punching holes in these new steel alloys is a good example.
Lubrication plays an important role in sheet metal forming by affecting metal flow and reducing the possibility of fracture during forming. A number of tests are used to evaluate lubricant performance, including the strip draw test, the twist compression test, and the cup drawing test.The cup...
October 10, 2016 | By Art Hedrick
In my career as a consultant, I have experienced numerous die-related problems. Some were complex, and some were easy to solve. But most were solved by following basic die design and troubleshooting guidelines. For a stamping die to function properly, you have to follow three basic die design...
October 10, 2016 | By Thomas Vacca
Q: Can you provide me with some guidelines for die design? A: When it comes to die design, I find there are two best practices to live by: Follow Tom Vacca’s 10 Die Design Laws. Use a die design continuous improvement check list. Following are my 10 Die Design Laws. Look to the...
October 4, 2016
Honda used Gestamp’s in-die “softzone” hot stamping process to form strategic zones of the 2016 Civic sedan’s rear frame rails to 1,500-megapascal (MPa) (shown in red), while cooling other zones (shown in pink), at a different pace to render them to a lower tensile strength to satisfy crush mode and performance targets.