PRESS FORMING METHOD AND TOOL FOR PRESS FORMING
First Claim
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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Abstract
A press forming method includes a first process of obtaining a pressing force applied to each portion of a tool by an workpiece material during press forming while independently driving the respective each portion of the tool divided into multiple portions and press forming the workpiece material, and a second process of adjusting at least one of an applied driving force, an applied driving speed, and an applied driving timing for each portion of the tool to cause a processing portion of the workpiece material in which the state approaching an overload state is detected based on the pressing force to flow to other processing portions of the workpiece material.
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Citations
6 Claims
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1. A tool for press forming comprising:
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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, and wherein 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. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification