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July 28, 2014
Upgrade transfer systems’ controls, drives, and bearings without complete replacement with a refurbishment. An appliance-maker had new rail connections, new wireless electrical connection methods for part tracking, electronic torque monitoring, and new kinetics drives installed as part of its press modernization program at 75 percent of the cost of new transfers.
July 7, 2014
Like so many automotive suppliers, the GT Technologies stamping team encountered tooling challenges when it shifted its work material from cold-rolled steel to a tougher steel for certain components. Its tooling started wearing out in a third of the time, creating downtime havoc and production disruption. Switching to a different tool coating helped the manufacturer resolve its tool and die wear problems.
June 5, 2014
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
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
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.
May 5, 2014
Stamping manufacturer A.J. Rose, Avon, Ohio, supplies precision-formed, deep drawn, metal products and assemblies such as transmission pistons, torque converter components, impellers, engine timing rings, ABS, water pump components, accessory drive pulleys, AC compressor clutch components, and numerous other powertrain components. The stamper needed the transfer system for a new transfer press to be robust and rigid to minimize tooling bar deflection and vibration. In addition, the system had to be compatible with existing tooling and to integrate well with a servo press’s variable speeds and modes
March 10, 2014
A conveyor system only works as well as its weakest link. What are those weak links, and how do you recognize their signs of wear? What are the most critical components for optimal operations? How do you maintain the equipment and when do you know when to call in the calvary? This article answers those questions.
March 5, 2014
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
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.
January 27, 2014
Excessive press downtime between jobs is stamping’s perennial albatross around the neck. To expose the culprits in your shop, try scrutinizing every step in a coil handling system, from the coil itself to the material pilot guides in the tool.
January 17, 2014
The evolution of precision blanking began with the shear, moved to the press, and now to the laser. Each type of blanking technology, from cut-to-length lines or blanking on a traditional mechanical press to blanking with servo press technology and laser blanking, comes with its own best applications, advantages, and disadvantages.
January 13, 2014
An effective PM for dies can't happen without a skilled, engaged workforce. When it comes to uncovering ideas on how to improve a process, workers are the experts.
December 12, 2013
Editor’s Note: This article is Part III of a three-part series that reviews the die materials and die coatings used in forming AHSS. Part I, which appeared in the January/February issue, discussed the relationship between process conditions and tool failure mechanisms. Part II appeared in...
November 1, 2013
To realize the importance of a good die preventive maintenance program, all a stamper has to do is recall the last time a press line shut down because of a major die problem. The downtime and reaction of the frustrated customer likely are hard to forget. The associated costs, however, aren’t typically documented. That shouldn’t be the case, because those costs can be very important in trying to convince management that a robust tooling maintenance program is worth every cent invested in it.