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Drawing and Stretching Diagram

DIEVESTIGATION: Draw or stretch? That is the question

April 13, 2010 | By Art Hedrick

When designing a part, you must decide which is the best way to form it. Should you draw it or stretch it? That depends on several factors, including forming depth.

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safety catch device

Preventing catastrophic press failure

March 9, 2010 | By Sitema/AME Fluid Power Div.

A load catching device has been developed that prevents catastrophic press crashes and allows operators to optimize the stroke for any size part.

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oil canning.

Preventing oil canning problems

March 9, 2010 | By Art Hedrick

Oil canning cannot be cured by coining, beating, or reshaping the metal. Instead, it must be prevented by ensuring the sidewalls are not subjected to radial compression.

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servomotor upgrade kit

Retrofitting a mechanical press with servo technology

February 9, 2010 | By Enrique Pano

For the right applications, retrofitting a mechanical press with a servomotor can speed productivity and add flexibility.

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Dievestigating Die Stamped Parts

DIEVESTIGATION: Designing stamped parts

February 9, 2010 | By Art Hedrick

In his first installment of DIEVESTIGATION, a new column about using research and data to solve stamping problems, tool and die expert Art Hedrick discusses how the metal specified during part design affects downstream operations and costs. What should you consider when selecting the metal?

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bachman machine customer collaboration

Design for manufacturability

January 14, 2010

Bachman Machine collaborates with customers,and often, tweaking the part design—just a little—enters the picture.

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Sheet Metal Stamping 101

December 15, 2009 | By Art Hedrick

Editor's Note: This series presents an overview of metal stamping. Part I focuses on the various careers in the metal stamping industry. Part II discusses stamping materials and equipment. Part III focuses on dies and cutting and Part IV offers more detail about cutting processes. Part V, the final installment, investigates forming methods.

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Sheet Metal Stamping 101, Part V

December 15, 2009 | By Art Hedrick

How are bending, flanging, coining, embossing, stretching, curling, hemming, ironing, necking, and drawing related? They all are common metal forming operations. Find out more about these processes in this final installment of stamping expert Art Hedrick's sheet metal stamping series.

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synthetic lubricants

Synthetics take on tough jobs

December 3, 2009 | By Dale Elenteny

Synthetic lubricants now can take on a greater variety of stamping applications.

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mechanical press servo press

Mild steel to HSS: Not just a spec change - Part II

November 20, 2009

Stamping high-strength steel, rather than mild steel, requires a different press system design approach. Standard presses are not designed to withstand the forces associated with HSS. A link drive can reduce the impact when the upper die touches the blank holder,and a heavier-than-normal press frame minimizes deflection.

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Ask the Stamping Expert: 10 design laws for tool designers

October 27, 2009 | By Tom Vacca

Tool design shortcuts, oversights, and errors can be costly. Following some fundamental design laws can help you anticipate and prevent possible problems, simplify operation and maintenance, and improve production and quality.

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Trimmed Parts

Sheet Metal Stamping 101, Part IV

October 27, 2009 | By Art Hedrick

Continuing his series about sheet metal stamping, tool-and-die expert Art Hedrick explains common cutting operations used in stamping: trimming, piercing, blanking, notching, shearing, lancing, and pinch trimming. Find out how they work and which applications are appropriate for each.

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design build troubleshoot

Design, build, troubleshoot

October 8, 2009 | By Rob Driver

When a quality stamped product is needed, operating as a team, communication and a solid understanding of the plan is paramount in efficiently producing a stamping die. The three critical phases of producing a capable stamping die are design, build (manufacture) and troubleshooting. Each phase is intertwined and dependent on one another. A design review is an excellent opportunity to develop a plan and review the construction and manufacturing methods that are going to be used to make the components. Ultimately, the challenge is to have gained a profit for your company and produced a stamping die of superior quality.

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press cutting high strength material

Mild steel to HSS: Not just a spec change - Part I

September 25, 2009

Stamping high-strength steel, rather than mild steel, requires a different press system design approach. Standard presses are not designed to withstand the forces associated with HSS. A link drive can reduce the impact when the upper die touches the blank holder, and a heavier-than-normal press frame minimizes deflection.

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accelerating diemaking

Accelerating Diemaking

September 24, 2009

There are several ways to shorten the die design-build-die tryout process to keep diemaking from becoming a bottleneck.

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