마이크로 스크류의 해석기반 판형 전조성형공정 연구

다국어 초록 (Multilingual Abstract)

There have been strong demands for micro size screw with high precision due to miniaturization and integration trends for electronic products such as Hard Disk Drives. The thread rolling process for screw manufacturing are lower unit cost, reduced material utilization, and superior mechanical properties compared to the machining process. But little work has been done on the thread rolling of micro size screw. In this paper, we investigate thread rolling process using Finite Element Analysis (FEA) and parameter study for screw. In this paper, we investigate thread rolling process using Finite obtain the material property and to implement into the FE tool for the numerical simulation. In case that parameter of relative position of dies is half length of pitch for maintaining the continuous thread profiles, we found that shear friction factor was 0.9 during the thread rolling process using FEA. We are trying to develop the thread rolling process using the FE-simulation to manufacture screws which have been commonly produced from the industrial level fabrication at present.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 기계적 물성 평가
• 3. 전조성형의 공정변수 정립
• 4. 결론
• 후기
• 참고문헌