| Summary: | 碩士 === 國立虎尾科技大學 === 機械與電腦輔助工程系碩士班在職專班 === 103 === Forging is a non - steady state process , in which many parameters are involved, including material selection , geometry of forging blank , metal flow , selection of die material , die design , lubrication and heat transfer between material (blank) and die change at any time. Particularly, titanium forging design parameters can determine die life and directly affect the cost of the product.
This study investigated the comparison of different forging processing parameters of titanium alloy to provide suggestion on die material selection. In addition, finite element analysis package DEFORM-3D is used to analyze the stress distribution of die reinforcement rings, and then analysis of forging process by changing only one process parameter is conducted to find out the optimal forging parameter which can increase die life.
Die life is the best assessment criterion of forging process parameters, hence the optimal interference value of reinforcement ring and the optimal design parameters of forging shape are find out according to simulation results and experiments. Then, these findings were used to manufacture dies in an actual mass production of forged golf head face cup by using titanium alloy, in which data of die life were collected. It was found the forging loads were successfully decreased, thus deformation and wearing of die were reduced as well, and this forging case not only produces parts which satisfy the requirements on microstructure and dimension precision, but also effectively increase the die life.
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