Application of modified wear model and process simulation for tool life evaluation in warm forging of Stainless Steel
碩士 === 國立成功大學 === 機械工程學系碩博士班 === 100 === This study focuses on developing a method of tool life evaluation for warm forging. The essential part of this method is to combine the experimental techniques, wear model and process simulation to predict how the tool geometry will affect the tool life. A mo...
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| Format: | Others |
| Language: | en_US |
| Published: |
2012
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| Online Access: | http://ndltd.ncl.edu.tw/handle/88056547594575326447 |
| Summary: | 碩士 === 國立成功大學 === 機械工程學系碩博士班 === 100 === This study focuses on developing a method of tool life evaluation for warm forging. The essential part of this method is to combine the experimental techniques, wear model and process simulation to predict how the tool geometry will affect the tool life. A modified Archard wear model is used for wear volume prediction. The wear test and hardness test are performed at different temperatures for obtaining the wear coefficient and hardness both as a function of temperature. Through the process simulation, the tool stress, the temperature distribution on the tool and the travel length of the tool-workpiece interface at the most critical part have been obtained. Then the tool wear for different tool designs is evaluated by the modified wear model. An industrial case study of stainless steel nuts warm forging is presented to demonstrate that the tool life can be increased by a better tool design, based on the tool wear evaluation proposed by this study.
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