| 车削件表面裂纹分析 |
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| 引用本文： | 刘桂江,冯长伟,马永强,王军敏,薛占子.车削件表面裂纹分析[J].物理测试,2020,38(6):30. |
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| 作者姓名： | 刘桂江 冯长伟 马永强 王军敏 薛占子 |
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| 作者单位： | 东北特钢集团抚顺特殊钢股份有限公司， 辽宁 抚顺 113001 |
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| 摘 要： | 撷取几例典型质量异议分析案例，这些异议均为在车削件光亮表面上的短促裂纹缺陷，对试样进行了宏观观察、磁粉探伤、金相及扫描电镜等检验，说明缺陷本质为钢材发纹。同时，指出了钢材供需双方应就使用需求、技术标准、生产检验等方面的内容进行统一规定。
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| 关 键 词： | 车削 裂纹 发纹 磁粉探伤 |
| 收稿时间： | 2019-10-21 |
Analysis of surface crack on turning parts |
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| LIU Gui-jiang,FENG Chang-wei,MA Yong-qiang,WANG Jun-min,XUE Zhan-zi.Analysis of surface crack on turning parts[J].Physics Examination and Testing,2020,38(6):30. |
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| Authors: | LIU Gui-jiang FENG Chang-wei MA Yong-qiang WANG Jun-min XUE Zhan-zi |
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| Affiliation: | Fushun Special Steel Co.， Ltd.， Dongbei Special Steel Group， Fushun 113001， China |
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| Abstract: | Several typical analysis cases of objection about quality， which all presented short cracking defects on shiny surface of turning parts were gathered. The samples were tested by macroscopic observation， magnetic powder inspection， metallographic inspection and scanning electron microscope. The results showed that the nature of defect was capillary crack of original steels. Meanwhile， it pointed out that the supply and requisition parties should have unified regulation on the aspects of use demand， technical standards and production inspections. |
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| Keywords: | turning cracking capillary crack magnetic powder inspection |
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