Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)
- Volume 9 Issue 4
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- Pages.277-283
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- 2006
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- 1226-833X(pISSN)
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- 2765-5415(eISSN)
A Study on the Multi Tapping Process Characteristics and Tread Quality under Difference Pitch
피치가 다른 다축 태핑에서의 가공 특성과 품질 평가에 관한 연구
- Lee, Jong-Hyung (School of Mechanical Engineering, K.I.T) ;
- Yi, Chang-Heon (School of Mechanical Engineering, K.I.T) ;
- Kim, Young-Moon (School of Mechanical Engineering, K.I.T) ;
- Lee, Sang-Young (Daegu Polytechnic VI College) ;
- Lee, Sang-Joong (Yeongju City Hall)
- 이종형 (금오공과대학교 기계공학부) ;
- 이창헌 (금오공과대학교 대학원 생산기계공학과) ;
- 김영문 (금오공과대학교 대학원 생산기계공학과) ;
- 이상영 (한국폴리텍VI대학 컴퓨터응용기계과) ;
- 이상중 (영주 시청)
- Received : 2006.07.13
- Accepted : 2006.10.20
- Published : 2006.11.30
Abstract
As the products such as HDD, Notebook, PDA, and Mobile Phone become smaller and thinner, the radius of threads as well as holes for assembling those products become smaller, even down to 1mm. To produce such small holes and thread efficiently, multi tapping is highly necessitated. However the multi tapping characteristics is not well known because its complicated cutting mechanism and thus the quality of the produced holes and threads is not well studied yet. In this paper, experiments have been conducted for small-radius threads using M2 and M2.6 and M3 cold forming tap to investigate multi tapping process using several useful signal such as torque and Z-axis encoder pulse. The surface and profile of the machined threads have been magnified and observed through a SEM.