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PRESS FORMING METHOD AND TOOL FOR PRESS FORMING

  • US 20190321873A1
  • Filed: 06/28/2019
  • Published: 10/24/2019
  • Est. Priority Date: 05/19/2014
  • Status: Active Grant
First Claim
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1. A tool for press forming comprising:

  • a tool including a punch, a die and an outer circumferential punch in which each of the punch and the outer circumferential punch individually receives a driving force and press forms an workpiece material,wherein a sensor which measures a deformation amount of the die for obtaining a pressing force which is applied to the die from the workpiece material during press forming and detecting that the tool is in a state approaching an overload state based on the pressing force applied to the die, andwherein at least one of the punch and the outer circumferential punch is controlled by at least one of a driving force, a driving speed, and a driving timing, the control being adjusted based on a detection that the tool is in the state approaching the overload state based on the pressing force applied to the die.

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