May 9, 2011
Part-holding tooling is a fraction of the total press cost, but it has the most effect on whether a stamping press is running at its peak potential. Taking proactive steps in tooling selection, including working with your supplier, using simulation, choosing the best framework material, and choosing the most suitable end-of-arm tooling, can make all the difference.
March 11, 2011
The forms and positional tolerances called out on product designs often defy the physical abilities of the product's material. Proper product and process design, as well as pressure clamping, can help maintain strict tolerances.
March 11, 2011
If existing coil feeding equipment is functioning, but productivity needs a boost, stampers can achieve measurable gains in their production efficiency through various types of upgrades to their coil handling and feeding equipment, including servo drives, variable speed controls, and operator interfaces.
March 10, 2011
Choosing the right spring for working with HSLA is very important. The author recommends chrome nitrogen springs of well-known brands for proper quality control.
February 25, 2011
In deep drawing, if the contact angle between drawing stages is too large, cracks can appear and swelling can occur, resulting in scoring, curving, and imbalanced flange-lip roundness. Keeping the contact angle between 15 and 45 degrees is key to quality drawn parts.
February 24, 2011
By improving communication, supplying critical requirements upfront, creating die standards, using advanced software, and powering up equipment, customers can get better dies, faster.
December 13, 2010
This article continues the discussion of deep-drawing and stretching variables begun in Part I by describing friction, thermal expansion, metal topography, and forming speeds and how they affect metal forming operations.
November 1, 2010
Originally die protection was developed just to prevent damage to the tool and die during the operation of a stamping press. As sensor and controls technology knowledge has evolved and stampers knowledge of it has expanded, die protection technology has been expanded into other applications, such as increasing production rates and to perform quality assurance.
September 10, 2010
A Midwestern manufacturer sought to improve productivity on its nearly 10-year-old Verson transfer press. Although the press was in good condition, the original ETF transfer, which had endured 28 million press hits, was causing considerable maintenance costs and lost production. The stamper retrofitted the Verson transfer stamping press with a Schuler Automation AT series tri-axis transfer. This resulted in a 10- to 40-percent improvement in cycle times.
September 6, 2010
Situation Tactile domes are used in communication devices as the switch element incorporated into membrane switches and control panels. Generally, they are made of 301 stainless steel preplated with 3 to 7 microns of nickel or silver. A global electronics stamper with business in the tactile...
August 9, 2010
Just what is involved in die building? Whether you are a die builder or a stamping company that uses dies, this overview can help you understand the many steps required to take a die from concept to production.
August 6, 2010
This multi-source article offers readers advice on the criteria to consider when buying a press. The article examines application suitability, drives, and controls as well as other considerations such as tonnage, frame construction, speed, and horsepower.
August 4, 2010
Even with many styles of sensors on a progressive die, die wrecks continue to occur. Addressing potential miss hits during the design stage, and using proximity sensors in careful, deliberate ways, can help control the problem.
June 16, 2010
What is deep drawing? What part parameters require the process? What must you consider when designing a deep-drawn part, and when should you consider an alternate process, such as spinning?