ASTM E517 Test Guide: Testing for Metals
FormabilityEnsure the specimen edges are polished completely free of blanking burrs; even minor edge roughness skews the transverse width extensometer…
Testing Applications
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ASTM E643 Test Guide: Formability Testing for Metals
FormabilityAlways apply a standardized, high-pressure grease lubricant uniformly to the punch apex to guarantee pure, friction-free stretch-forming dynamics.
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ASTM E646 Test Guide: Formability Testing for Metals
FormabilityAlways verify that the linear regression regression coefficient (R^2) exceeds 0.995; a lower value indicates invalid data collection or localized…