| 改善康明斯气缸体加工性初探 |
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| 引用本文： | 郭全领,曾大本,高文平,袁良风. 改善康明斯气缸体加工性初探[J]. 现代铸铁, 2006, 26(2): 22-23 |
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| 作者姓名： | 郭全领 曾大本 高文平 袁良风 |
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| 作者单位： | 1. 清华大学,机械工程系,北京,100084
2. 东风汽车股份有限公司,铸造分公司,湖北,襄樊,441004 |
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| 摘 要： | 针对国产康明斯气缸体铸件超高速加工条件下的加工性差问题进行了调查与分析。并对改善加工性问题进行了理论分析和讨论，指出了影响康明斯气缸体铸件加工性的主要因素，确定了改善康明斯气缸体铸件加工性的主要方向，根据确定的改进方向，对气缸体铸件材料进行改进，并对改进后的气缸体铸件进行了切削线速度为152m／min的切削试验，试验表明：缸体材料改进后刀具磨损显著降低．与改进前相比，刀具寿命提高到7倍。
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| 关 键 词： | 气缸体 加工性 灰铸铁 |
| 文章编号： | 1003-8345（2006）02-0012-08 |
| 收稿时间： | 2005-11-04 |
| 修稿时间： | 2005-11-04 |
An Approach to Machinability Improvement of Cummins Cylinder Block |
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| GUO Quan-ling,ZENG Da-ben,GAO Wen-ping,YUAN Liang-feng. An Approach to Machinability Improvement of Cummins Cylinder Block[J]. Modern Cast Iron, 2006, 26(2): 22-23 |
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| Authors: | GUO Quan-ling ZENG Da-ben GAO Wen-ping YUAN Liang-feng |
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| Affiliation: | 1.Tsinghua University, Beijing 100084, China; 2. Dongfeng Automobile Co. Ltd., Xiangfan 441004, China |
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| Abstract: | An investigation was made on the reasons causing the poor machinability of cylinder block castings for Cummins engines. Produced in Foundry Branch of Dongfeng Automobile Co. Ltd., The main factors influencing machinability of the block castings were analyzed and discussed, as well as the principle to improve machinability was determined. Based on the determined principle, the material of block castings was improved, and a machining test with cutting speed of 152 m/min was conducted to check the machinability of improved castings. The result showed that, compared with that before improvement, the working life of cutting tool was increased in 7 times. |
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| Keywords: | cylinder block machinability gray iron |
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