Many demands are placed on automotive body structures which influence the material selection process. The impact on safety, manufacturability, and longevity are among the most critical, with each of these balanced against cost and environmental concerns.

Formed sheet metal products experience a complex series of deforming, cutting, and joining before being placed in a body structure, where these components will be subjected to complex loading conditions during the product life cycle. Understanding the failure limits and the conditions which produce failure allows for the design of body structures which can withstand these demands.

Testing helps determine whether a metal is suitable for its intended use. Different tests characterize specific performance aspects. Historically, manufacturers relied on tensile testing to understand metal flow. However, new tests help us understand the behavior of new steel grades and their interactions more thoroughly with new manufacturing technologies.

 

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High Strain Rate Testing

Three important points collectively highlight the need for high-speed testing:

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Bend Testing

Tensile testing cannot be used to determine bendability, since these are different failure modes. Failure in bending

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Tensile Testing

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Friction and Friction Testing

Friction is a restraining force that limits metal flow resulting from contact with another surface during sheet

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Bulge and Dome Testing

Local necking during uniaxial tensile testing limits the characterization of the stress-strain response to true

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RSW Joint Performance and Testing

Acceptable weld integrity criteria vary greatly among manufacturers and world regions. Each AHSS user needs to

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Vision for Industry 4.0 in Sheet Metal Forming

There is interest in the sheet metal industry on how to adopt Industry 4.0 into their legacy forming practices to

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