Method for the designing of tools

  • US 7,894,929 B2
  • Filed: 05/11/2001
  • Issued: 02/22/2011
  • Est. Priority Date: 05/11/2000
  • Status: Active Grant
First Claim
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1. A non-transitory computer readable medium containing a program, said program being configured to make a computer execute the steps of a method for designing a tool for deep drawing of sheet metal to form a sheet metal component having a predefined component geometry, said tool comprising a die, a binder and a punch, whereby the binder is used to fix the sheet metal in an edge zone of the die, before the sheet metal is pressed in a drawing direction by the means of the punch into the die, said tool comprising at least one addendum zone surrounding the component, said method comprising the following steps:

  • a. smoothing an irregular component edge by filling in a fill surface whereby a smooth component edge is formed and the fill surface runs into the predefined component geometry by a continuous tangent;

    b. arranging along the smooth component edge at a distance from one another several sectional profiles directing away from the smooth component edge;

    c. whereby the sectional profiles are parameterized by the means of profile parameters, the profile parameters being scalar values;

    d. laterally interconnecting the sectional profiles by a continuous surface to form the geometry of the addendum zone of the tool, wherebye. said addendum zone complements the component geometry in the edge zone and runs into the component and the binder with a continuous tangent.

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