Design and Analysis of Forming for Bolt with Six-Lobe Socket and Hexagon

• Main Authors: Cheng-Feng Tsai, 蔡政峯
• Other Authors: Dr.Chao-Ho Hsu
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/79unxf

博士 === 國立高雄應用科技大學 === 模具工程系 === 103 === The purpose of this study is to investigate the design of forming of bolts with Six-Lobe Socket and Hexagon by using the Risk Priority Number (RPN) of “Failure Mode and Effects Analysis” (FEMA). In the study process, CAD and FEM are adopted. Solid WorksTM, the 3D graphic software, is applied to construct the billets and the die geometry. Then, the billets and the die geometry are imported into DEFORMTM, the finite element analysis software, to analyze the forming of bolts. With Taguchi optimization, the design of the punch and the die contributes to the better distribution of forming load and the reduction of the forging force. The study results indicate that the forging force of punch is reduced by 10.91% and the center of load gets closer to the center of the machine by 4.3%. In this way, the enhancing die life.