Technical Articles & News

To many toolmakers this may seem a simple question, however, for those new in the industry or without much experience, it is worth explaining in more detail. A crash form means that a male punch and a female die are closed together without any springs, cushions or otherwise to hold the blank as the forming process takes place. The punch and die simply “crash” together. The method is successful on simple, shallow parts with basic shapes. Basically, the flow of material cannot be controlled in this method, and that is why wrinkling results in deep parts.

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We would like to explore the capabilities of forming simulation, as well as provide some descriptions of how the technology works. So here is a quick summary of a few typical applications of press forming simulation technology. Being aware that press forming simulation is actually a specific application of the Finite Element Method (FEM also known as FEA) may assist your understanding.

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It is common practice for a toolmaker to scribe or etch a grid of circles onto a blank during the tooling development stage. Then, the etched blank is put in the nearly finished tool (or proto-tool) and the sheet metal is formed. As the forming takes place, each circle (which was perfectly round with a known diameter, when it was etched onto the blank) stretches according to how much strain is experienced at that point, as determined by the shape of the part and properties of the blank material.

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Having launched EasyBlank in the last few weeks, already we are able to confirm that users are taking advantage of the technology on the shop floor.

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Zurich, Switzerland, May 29, 2007: AutoForm Engineering GmbH, the leading supplier of software solutions for the sheet metal forming industry, has announced the launch of its new E-commerce solution, EasyStamping.com in partnership with StampingSimulation.com.

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