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| 钢质曲轴攻丝质量的改进措施 | |
| 引用本文： | 高莹,张书桥,李沪曾.钢质曲轴攻丝质量的改进措施[J].工具技术,2007,41(2):71-74. |
| 作者姓名： | 高莹 张书桥 李沪曾 |
| 作者单位： | 1. 同济大学机械工程学院现代制造技术研究所,200092,上海市 2. 上海大众汽车有限公司发动机厂 3. 同济大学 |
| 基金项目： | 上海市汽车工业科技发展基金 |
| 摘 要： | 钢质曲轴螺孔攻丝加工中经常出现螺纹烂牙、中径扩大等问题,且刀具寿命较短。通过对攻丝切削力和丝锥排屑特点的分析,确定径向力、轴向力和排屑不畅是影响攻丝质量的主要因素。通过优化丝锥结构型式和几何参数,改善了攻丝切削状况,实现了提高攻丝质量、延长丝锥寿命的目的。 |
| 关 键 词： | 攻丝 左螺旋槽丝锥 切削力 排屑 容屑槽 |
Improving Measures for Tapping Quality of Steel Crankshafts |
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| Gao Ying,Zhang Shuqiao,Li Huzeng.Improving Measures for Tapping Quality of Steel Crankshafts[J].Tool Engineering(The Magazine for Cutting & Measuring Engineering),2007,41(2):71-74. | |
| Authors: | Gao Ying Zhang Shuqiao Li Huzeng |
| Affiliation: | Gao Ying Zhang Shuqiao Li Huzeng |
| Abstract: | During tapping in steel crankshafts, the most commonly encountered problems are “mess tooth” and oversize thread, additionally the tap life is very low. Based on the analysis of tapping force system and characteristic of chip removal, it is confirmed that radial force, axial force and jam of chip removal are the main reasons for poor thread quality. By optimizing tap types and geometrical parameters, the cutting condition is improved, and the purpose of upgrading threading quality and extending tap life is realized finally. |
| Keywords: | tapping left-spiral flute tap cutting force chip removal chip flute |
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