“If at first you don’t succeed, try, try again.” Systematic process improvement, as described in several previous posts (Adjusting complex process variables: Drawbead shapes, Virtual Tryout or Process Engineering?,What is passing?, In the rearview mirror, Infinitely adjustable presses, when should…

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As already discussed in Sheet metal plasticity visualized (part one) there are four main components needed to model the plastic deformation of sheet metals: yield function, hardening model, flow rule, and failure model. We have expanded our discussion of the…

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The blank is one of the first parameters defined in a stamping simulation; it’s mechanical properties, shape, and location in the tool. However, many engineers underestimate the impact that the assumed blank shape and location will have on the final…

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We are pleased that the SME (Society of Manufacturing Engineers) Stamping and Dies Technical Group and Metal Forming Simulation Technical Group will host a webinar on May 11th where AutoForm-ProcessEngineering along with Triboform will be discussed. Knowing which friction value is…

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As already discussed in the post “Constitutive modeling of sheet metal” there are four main components needed to model the plastic deformation of sheet metals: yield function, hardening model, flow rule, and failure model. These concepts have theoretical backgrounds based…

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Modeling of sheet metal stamping can raise many questions regarding the validity of engineering decisions based on finite element analysis. Knowing only the grade and thickness of the material modeled can still leave some open questions regarding the “known” parameters…

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Springback compensation is one of the key challenges in the field of die face engineering. We have mentioned the challenges with compensating springback several times within this blog (1 link, another link, and one more link) . In those earlier posts, we mentioned…

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The Stamping System

A recurring theme on this blog, so far, has been sources of variation in production that might not be apparent to engineers when defining, running, and evaluating a single simulation on any specific product/process design. Comments on the blog and…

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Earlier this year AutoForm started this blog, “We Think In Sheet Metal”. Our goal: to communicate directly with you—the metal forming and engineering community.  Here are some of our recent blog posts; please share them with your colleagues, customers, and…

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Has this happened to you? The sales department wins a job for process engineering, die design, tool build, and stamping production. Upon review of the bid package, you note the inclusion of a “quoted blank.” Immediately that blank has you…

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