| Summary: | 碩士 === 國立臺灣科技大學 === 機械工程系 === 103 === In order to provide the design and manufacture information of the fluteless taps, this study aims to test the tapping process for fluteless taps by using processing equipment. To predict the induced tapping force and torque, the finite element analysis has been carried out based on the actual processing parameters. Moreover, a fluteless taps profile measurement system has been developed to determine the profile features of the taps. This study consists of three parts: First, the optimal tapping parameters have been determined by providing three kinds of the spindle speed as process parameters. After repeating the tapping tests, the optimal processing parameters were obtained by setting the lowest tool wear. These parameters were then used to measure the induced force and torque during tapping by using the dynamometer. Second, the finite element analysis has been carried out based on the measured results, by setting them into the static analysis. The analysis of stress distribution can be used to predict the tool damage situation. Moreover, according to the process parameters of the lowest tool wear, they can be set into dynamic analysis. Based on the simulation results, the maximum axial force and torque difference compared with the dynamometer measurement results is less than 20%. Third, a profile measurement system has been developed in this study. This system includes image-acquisition module, motion module, optical module, and the software-integrated module to measure the outside diameter, pitch diameter and angle of thread. According to the experimental results, the measurement error for the outside diameter and pitch diameter is less than 0.01 mm, and angle of thread is less than ±1.5°.
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