| 降低中低碳合金钢车削表面粗糙度研究 |
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| 引用本文： | 茅兴富.降低中低碳合金钢车削表面粗糙度研究[J].西安科技大学学报,1996(2). |
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| 作者姓名： | 茅兴富 |
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| 作者单位： | 西安矿业学院机械工程系 |
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| 摘 要： | 对２０ＣｒＭｎＴｉ及４５钢试棒进行车削试验研究，结果表明，在正火状态下粗车，２０ＣｒＭｎＴｉ钢表面粗糙度较大，．在精车时，明显减小；４５及２０ＣｒＭｎＴｉ钢分别在淬火＋中温回火及淬火＋低温国火的状态下精车，由于鳞刺明显减少，二者表面粗糙度均显著降低。４５钢减少鳞刺，降低粗糙度，主要在于提高强度，２０ＣｒＭｎＴｉ则是板条马氏体结构及性能。
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| 关 键 词： | 粗糙度，鳞刺，车削，板条马氏体 |
THE STUDY ON LOWERING TURNED SURFACE ROUGHNESS OF MEDIUM AND LOW CARBON ALLOYED STEEL |
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| Mao Xingfu.THE STUDY ON LOWERING TURNED SURFACE ROUGHNESS OF MEDIUM AND LOW CARBON ALLOYED STEEL[J].JOurnal of XI’an University of Science and Technology,1996(2). |
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| Authors: | Mao Xingfu |
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| Abstract: | Turning experiment of 20 CrMnTi and 45 steels shows that the surface roughness of 20 CrMnTi steel at normalized state is greater when rough turning,and obviously decreases when finish turning. The surface roughness of both 45 and 20 CrMnTi at quenching and medium temperature tempering and at quenching and low temperature tempering 1respectively is lowered markedly due to the decrease of scale-stab when finish turning. The main reason of decreasing scale-stab and lowering surface roughness of 45 steel depends on the increase of strength,and that of 20 CrMnTi steel on the structure and property of lath martensite. |
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| Keywords: | roughness scale-stab turning alth martensite |
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