Sang-Kon Lee, Jae-Eun Lee, Sung-Min Kim, Byung-Min Kim*
The Journal of Mechanical Science and Technology, vol. 24, no. 12, pp.2539-2544, 2010

Abstract : The design of an intermediate die shape is very important in multistage profile drawing. In this study, two design methods for the intermediate die shape of a multistage profile drawing for producing a linear motion guide (LM) guide is proposed. One is the electric field analysis method using the equipotential lines generated by electric field analysis, and the other is the virtual die method using a virtual drawing die constructed from the initial material and the final product shape. In order to design the intermediate die shapes of a multistage profile drawing for producing LM guide, the proposed design methods are applied, and then FE analysis and profile drawing experiment are performed. As a result, based on the measurement of dimensional accuracy, it can be known that the intermediate die shape can be designed effectively.

Keyword : Multistage profile drawing; Linear motion guide; Intermediate die; Electric filed analysis; Virtual die method