Research on the Optimal Design of the Geometrical Features and the Tool Life of the Micro Fluteless Taps

• Main Authors: Zhong-Wei Zhou, 周中偉
• Other Authors: Fang-Jung Shiou
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/15906916951717749102

碩士 === 國立臺灣科技大學 === 機械工程系 === 104 === This research mainly focuses on three parts, namely, the improvement of the former developed automatic optical inspection (AOI) system of the micro fluteless taps, the design optimization of the geometric features of the fluteless taps, and the tool life investigation of the tapping for SUS304 stainless steel sheet. Regarding the improvement of the developed AOI system, the software modules for the efficient inspection of the pitch and the chamfer angle have been amended based on the same hardware architecture. Concerning the reduction of the manufacturing cost and the increase the tool life of the micro fluteless taps, the optimal design of the geometrical features of the micro fluteless taps has been carried out. This study focuses on two parameters design of the taps by Creo3.0 Pro/MECHANICA software, including the chamfer angle and the shovel depth, respectively. With regard to the tool life investigation of the tapping, this study aims to analyze the tool life of the micro fluteless taps in terms of the number of tapping holes and to find the optimal diameter of the leading hole. According to the experimental results for tapping the SUS304 stainless steel plate with the thickness of 1mm, the tool wear results have been determined. The plot of the number of holes versus tool wears including wear length vs. tapping number, wear width vs. tapping number, radial wear vs. tapping number, thrust force vs. tapping number, and torque vs. tapping number, have been obtained in this study. The research results regarding micro fluteless tapping are expected to be used as a helpful reference for the industry.