March 11, 2011 | By Jim Ward
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 | By Thomas Vacca
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 | By Seijiro Oshima
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 Mark Hansen
By improving communication, supplying critical requirements upfront, creating die standards, using advanced software, and powering up equipment, customers can get better dies, faster.
January 10, 2011 | By Dave Stilwell
Modern press lines are very integrated, combining coil feeds and press capabilities from a single control area and using commonality of components to optimize results.
December 13, 2010 | By Art Hedrick
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 | By Greg Dickerson
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 | By Kate Bachman
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 | By Kate Bachman
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 | By Art Hedrick
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 | By Kate Bachman
Matching Press Characteristics to Your Applications The following questions–and their answers, provided by industry equipment manufacturers and experts–are intended as a general guide to help you simplify the daunting task of selecting a press or press system. 5. So, Which Press Type is Best...
August 4, 2010 | By Thomas Vacca
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 | By Art Hedrick
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?
May 5, 2010 | By Kate Bachman
In the home appliance industry, designs are constantly updating to meet consumer tastes and changing market demands. For the stamping supplier forming a new bracket for a new design, high production volumes necessitated tripling the number of shifts. But tripling the number of shifts increased labor costs, as well as utility and material delivery costs. The stamper decreased the labor hours to resume a single-shift operation by implementing quick die change and magnetic die clamping.
April 30, 2010 | By Guy Goodmonson
Stamping simulation software augments an experienced toolmaker's creativity.