| 冷冲模具在电火花切割加工中的破坏形式分析 |
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| 引用本文： | 李应明,胡泽豪.冷冲模具在电火花切割加工中的破坏形式分析[J].中南林业科技大学学报,2007,27(2):115-117. |
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| 作者姓名： | 李应明 胡泽豪 |
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| 作者单位： | 湘潭大学机械工程学院 湖南湘潭411105(李应明)，变流力学与材料工程研究所 湖南长沙410004(胡泽豪) |
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| 摘 要： | 通过对模具在线切割加工中的破坏形式进行分析,结果表明:模具不完全淬火、坯料温度的不均匀分布、材料内部的碳化物偏析是模具变形与开裂的主要原因.在生产实践中,通过合理选择模具材料、正确的锻造工艺、合适的热处理工艺以及淬火前型孔粗加工等措施,可有郊防止模具的变形与开裂.
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| 关 键 词： | 材料加工 模具 线切割 开裂 不完全淬火 偏析 |
| 文章编号： | 1673-923X（2007）02-0115-03 |
| 收稿时间： | 2006-06-25 |
| 修稿时间： | 2006-06-25 |
Analysis of Break Form in the Process of Wire Electric Discharge Machining for Die |
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| LI Ying-ming,HU Ze-hao.Analysis of Break Form in the Process of Wire Electric Discharge Machining for Die[J].Journal of Central South Forestry University,2007,27(2):115-117. |
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| Authors: | LI Ying-ming HU Ze-hao |
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| Institution: | School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China |
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| Abstract: | The results of an analysis based on the fracture mode of mould in wire-cutting processing show that the partial-quenched of mould,the non-uniformity of blank temperature and the carbide segregation inside the material are the main reasons of deformation and cracking.Many measures such as reasonable selecting mould material,correct forging process,appropriate heat treatment,and rough machining of type hole before quenching are taken in production to effectively prevent deformation and cracking of mould. |
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| Keywords: | material-processing die wire-cutting cracking partial-quenched segregation |
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