Proceedings of the Korean Society of Precision Engineering Conference (한국정밀공학회:학술대회논문집)
- 2002.10a
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- Pages.713-716
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- 2002
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- 2005-8446(pISSN)
A Study on the Deformation Measurement of Backward Extrusion Dies using Strain Gauge
스트레인 게이지를 이용한 후방압출금형의 변형측정에 관한 연구
- Yeo, Hong-Tae (Graduate School of Mech, Eng. Dept., DEU) ;
- Song, Yo-Sun (Computer Aided Mech. Eng. Dept., GPC) ;
-
Choi, Young
(Mechanical & Automotive Eng. School, IJU)
;
- Heo, Kwan-Do (Mech. Eng. Dept., DEU)
- Published : 2002.10.01
Abstract
The dimensional accuracy of the cold forged products is strongly dependent on the elastic behavior of the die. The elastic deformation of the die is continuously changed during the process. Therefore, it is needed to measure the deformation of die. Strain gauges are used to measure the elastic strains in the die during cold backward extrusion process. The strain gauges are attached on the die surface and embedded at the interface between the die insert and the stress ring. In order to compare the results with the FE-analysis, the rigid-plastic FE-analysis of cold backward extrusion process using DEFORM-3D has been performed, and the analysis of elastic deformation of the die has been done by using ANSYS with non-linear contact.
Keywords