| 45钢凸轮轴磨损凸轮的激光熔覆再制造 |
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| 引用本文： | 董世运,张晓东,徐滨士,王志坚,闫世兴.45钢凸轮轴磨损凸轮的激光熔覆再制造[J].装甲兵工程学院学报,2011,25(2):85-87,102. |
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| 作者姓名： | 董世运 张晓东 徐滨士 王志坚 闫世兴 |
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| 作者单位： | 1. 装甲兵工程学院装备再制造技术国防科技重点实验室,北京,100072
2. 装甲兵工程学院装备再制造技术国防科技重点实验室,北京,100072;哈尔滨工程大学材料科学与化学工程学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金，国家"973"计划项目 |
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| 摘 要： | 凸轮轴是坦克发动机的关键部件,其服役过程中经常出现由于磨损超差而导致凸轮失效的问题。采用激光熔覆技术实现了坦克凸轮轴的再制造。其中,采用分段调整扫描速度的措施,实现了熔覆层厚度的可控;采用边缘补偿措施,防止了边缘塌陷。提出的凸轮熔覆路径规划,其成形尺寸精度较高。再制造凸轮经磨削加工后满足几何尺寸要求,熔覆涂层组织致密,无裂纹和气孔等缺陷,涂层显微硬度达HV 700～750,满足凸轮轴图纸设计要求。
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| 关 键 词： | 激光熔覆 凸轮轴 再制造 |
Laser Cladding Remanufacturing of 45 Steel Camshaft Worn Cam |
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| DONG Shi-yun,ZHANG Xiao-dong,XU Bin-shi,WANG Zhi-jian,YAN Shi-xing.Laser Cladding Remanufacturing of 45 Steel Camshaft Worn Cam[J].Journal of Armored Force Engineering Institute,2011,25(2):85-87,102. |
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| Authors: | DONG Shi-yun ZHANG Xiao-dong XU Bin-shi WANG Zhi-jian YAN Shi-xing |
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| Institution: | DONG Shi-yun1,ZHANG Xiao-dong1,2,XU Bin-shi1,WANG Zhi-jian1,YAN Shi-xing1(1.National Defense Key Laboratory for Remanufacturing Technology,Academy of Armored Force Engineering,Beijing 100072,China,2.School of Material Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | Camshaft is a key component of tank engine,and its service process due to wearing oversize often leads to cam failure.In this paper,laser cladding technology is employed to remanufacture the worn tank camshaft.The cladding coating thickness control is achieved by adjusting scanning velocity in segment.Edge compensation method is used to prevent the edge from collapsing.The cam cladding path is proposed to shape a dimension with high accuracy.The cladded cam after milling meets the requirements of geometrica... |
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| Keywords: | laser cladding camshaft remanufacture |
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