Stamping Articles

Whether you're using a high-speed stamping press to make simple parts at breakneck speeds or doing something really tricky, like deep drawing a material that puts up a lot of resistance, the information in this technology area is sure to help. The articles, case studies, and press releases cover stamping presses, lubricants, and materials.

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Servo press trends

September 21, 2016 | By Kate Bachman

Vehicular weight reductions that automakers have made largely have been attributed to the use of advanced high-strength (AHS) materials—and the stamping manufacturers forming them. Stampers have muscled the Olympian feat via many approaches, including using servo-driven mechanical presses. Servo presses have evolved and moved from the fringe into the mainstream. Four servo press manufacturers weigh in on how servo press technology has advanced to spot stampers in helping them meet the challenges inherent in forming superstrong metals with low formability and high work hardening.

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How to gild your safety record

July 13, 2016

Talan Products has consistently reduced its safety incident rate since 2006. That it has manufactured for 1,600 days without a lost-time accident is no accident. It is the result of a deliberate development of an omnipresent safety culture. Other manufacturers often ask, “How do you do it?” The manufacturer shares its safety secrets, including establishing a safety culture, learning from near-misses, using sensors, and tracking safety metrics.

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High-speed stamping quenches thirst for beverage cans

July 13, 2016 | By Greg Stueve

All of the components of a beverage can are stamped in a high-speed press. The process of producing two-piece beverage cans starts with the blanking and forming of a cup from a large aluminum coil. Today’s most advanced cupping presses can run a 14-out die up to 350 strokes per minute (SPM), producing up to 4,900 cans per minute. Would soda beverages be as popular if they could not be packaged in a portable, singular, recyclable can made inexpensively by a high-speed stamping process? Some unique challenges and critical factors for press work in high-speed can stamping include high operating speeds, dynamic balancing, and off-center loading. Here are some ways to handle stamping at (almost) the speed of light--and takeaways for slower operations.

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Stamper powers up to do the heavy lifting

July 12, 2016 | By Kate Bachman

Stamping manufacturer StampSource brought in more than $3 million worth of work—a 25 percent revenue increase—with a capital investment of two heavy-duty feeders and three high-tonnage presses. It was the largest expansion in the company’s 66-year history.

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R&D Update: Practical methods for estimating formability of sheet materials

July 7, 2016 | By Ali Fallahiarezoodar, Berk Aykas, David Diaz Infante, Taylan Altan, Ph.D.

Formability is the ability of a sheet material to deform without failure or fracture. Information on formability helps process and tool design engineers predict failure during analysis of sheet metal forming processes for tool design. Formability information also is used to evaluate...

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Die Science: How many hits does it take to get to the end of a tool’s life?

July 7, 2016 | By Art Hedrick

Recently I was asked at a training session to state the average life of a stamping die. The person asking was from the costing department of a large automotive firm. He said he needed to know because he was getting different answers from different individuals in the organization—anywhere from...

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Building effective and agile sheet metal forming supply channels

July 6, 2016 | By Bill Frahm

Strong supply chains hold the promise of all partners being able to share innovation. This requires a commitment from the manufacturers in the chain to be open and communicative. Without that trust, supply chain partners can hurt product success and sabotage profitability goals.

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Ask the Stamping Expert: How do we prevent buckling in thin material during strip feeding?

July 6, 2016 | By Thomas Vacca

Q: We are trying to stamp a drawn cup from 0.002-inch-thick by 0.500-in.-wide fully annealed stainless steel on a Bruderer BSTA 22e high-speed press with an aluminum ball bearing die set and a Bruderer 198/85 roll feed. There are six draws, and all of the draw die bushings are carbide with steel...

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R&D Update: Controlling material flow in drawing operations

June 17, 2016 | By Ali Fallahiarezoodar, Taylan Altan, Ph.D., Zeming Yin

The researchers at The Ohio State University's Center for Precision forming perform research on controlling material flow in drawing operation using CNC hydraulic cushions to help improve drawability.

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Reading progressive die strip — Part II

June 16, 2016 | By Art Hedrick

Editor's Note: This is the second part of a two-part article about reading progressive-die strips. Part I, which appeared in the May issue, covered the causes of pilot hole distortion and mismatched cuts. Hard marks, otherwise known as coin marks, occur when metal is severely squeezed between two...

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Die Science: Developing forming dies - Part III

June 16, 2016 | By Art Hedrick

Editor's Note: This is third installment of a three-part series that discusses die development for producing nonuniform, contoured parts by breaking the process down into eight steps. Part I covers the part material, its form, and its function. Part II discusses length-of-line analysis and tip...

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Die Science: Developing forming dies - Part II

June 16, 2016 | By Art Hedrick

Editor's Note: This is first installment of a three-part series that discusses die development for producing nonuniform, contoured parts by breaking the process down into eight steps. Part I covers the part material, its form, and its function. Part II discusses length-of-line analysis and tip...

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Die Science: Solving punch breakage problems - Part III

June 16, 2016 | By Art Hedrick

Numerous factors contribute to the premature failure of piercing and cutting punches. In addition to problems with the punches, such as tool steel or problems caused by EDM and grinding, the press can cause problems through deflection, and bridge strippers also can cause punch breakage.

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Die Science: Designing dies 2-D or 3-D?

June 16, 2016 | By Art Hedrick

Both 2-D and 3-D die design packages have advantages and disadvantages, which are discussed here, but true success lies in the designer's ability, not the software's.

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Die Science: Fundamentals of drawing

June 8, 2016 | By Art Hedrick

Columnist Art Hedrick goes back to basics about drawing, offering a comparison of drawing and casting, an explanation of flow and control.

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