Development of CAD for Optimum Design Shrinked Cylindrical Dies by Fractional Fitting Pressure Approach

부분 접합면 압력을 이용한 원통금형의 최적설계용 CAD개발

Shrink-rings (stress-rings) are used in the fabrication of compaction dies to increase the allowable pressures for a given die material. This paper proposes a new approach, where the maximum allowable shrinking pressures are calculated on shrinked plans in the radial direction and then the fractional fitting pressures below the maximum shrinking pressures are used as the design values. A computer program, DIECAD, is developed. The paper presents two design cases as examples in order to easily illustrate the design procedures from the computer program DIECAD