孙富建,范永庆,梁志强,鲁艳军,陈金龙,肖玉斌,黄浩,袁剑平.电脉冲的热效应对淬硬轴承钢硬车性能的影响[J].表面技术,2025,54(4):143-150, 164.
SUN Fujian,FAN Yongqing,LIANG Zhiqiang,LU Yanjun,CHEN Jinlong,XIAO Yubin,HUANG Hao,YUAN Jianping.Influence of Thermal Effect of Electric Pulse on Hard Turning Performance of Hardened Bearing Steel[J].Surface Technology,2025,54(4):143-150, 164 |
| 电脉冲的热效应对淬硬轴承钢硬车性能的影响 |
| Influence of Thermal Effect of Electric Pulse on Hard Turning Performance of Hardened Bearing Steel |
| 投稿时间：2024-05-24 修订日期：2024-10-30 |
| DOI：10.16490/j.cnki.issn.1001-3660.2025.04.011 |
| 中文关键词: 淬硬轴承钢 电脉冲辅助硬车 热效应 硬车加工性能 |
| 英文关键词:hardened bearing steel electric pulse assisted hard turning thermal effect hard turning performance |
| 基金项目:基础科研(DEDPCL);国家自然科学基金(52375400);转化应用项目(CA2EFD46);湖南省自然科学基金项目(2023JJ30255) |
| 作者 | 单位 |
| 孙富建 | 湖南科技大学 难加工材料高效精密加工湖南省重点实验室 机电工程学院，湖南 湘潭，411201 |
| 范永庆 | 湖南科技大学 难加工材料高效精密加工湖南省重点实验室 机电工程学院，湖南 湘潭，411201 |
| 梁志强 | 北京理工大学 机械与车辆学院，北京 100081;北理工郑州智能科技研究院，郑州 450000 |
| 鲁艳军 | 深圳大学 机电与控制工程学院，广东 深圳 518060 |
| 陈金龙 | 湖南科技大学 难加工材料高效精密加工湖南省重点实验室 机电工程学院，湖南 湘潭，411201 |
| 肖玉斌 | 江麓机电集团有限公司，湖南 湘潭 411100 |
| 黄浩 | 江麓机电集团有限公司，湖南 湘潭 411100 |
| 袁剑平 | 江麓机电集团有限公司，湖南 湘潭 411100 |
|
| Author | Institution |
| SUN Fujian | Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-cut Material,School of Mechanical Engineering, Hunan University of Science and Technology, Hunan Xiangtan 411201, China |
| FAN Yongqing | Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-cut Material,School of Mechanical Engineering, Hunan University of Science and Technology, Hunan Xiangtan 411201, China |
| LIANG Zhiqiang | School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;Beijing Institute of Technology Zhengzhou Academy of Intelligent Technology, Zhengzhou 450000, China |
| LU Yanjun | College of Mechatronics and Control Engineering, Shenzhen University, Guangdong Shenzhen 518060, China |
| CHEN Jinlong | Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-cut Material,School of Mechanical Engineering, Hunan University of Science and Technology, Hunan Xiangtan 411201, China |
| XIAO Yubin | Jianglu Machinery & Electronics Group Co., Ltd., Hunan Xiangtan 411100, China |
| HUANG Hao | Jianglu Machinery & Electronics Group Co., Ltd., Hunan Xiangtan 411100, China |
| YUAN Jianping | Jianglu Machinery & Electronics Group Co., Ltd., Hunan Xiangtan 411100, China |
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| 中文摘要: |
| 目的 探究电脉冲辅助硬车下热效应对ZGCr61淬硬轴承钢加工过程的影响。方法 通过研究不同工件表面初始温度(25、70、90、110、130 ℃)对ZGCr61淬硬轴承钢切削温度、切屑形成、工件表面粗糙度、工件表面加工硬化、工件表面强化层微观结构的影响，揭示热效应对淬硬轴承钢加工过程的作用机制。结果 随着工件表面初始温度的升高，ZGCr61淬硬轴承钢材料塑性提高，切削温度小幅降低，切屑的锯齿状特征减弱，切屑剪切带的剪切应变降低了30.7%，工件表面切削棱高度逐渐下降，切屑黏结缺陷减少，工件表面粗糙度最小可以达到0.288 μm，相比于普通车削降低了7.9%;当工件表面初始温度为110 ℃时，表面强化层的深度达到了8.78 μm，相较于普通硬车加工增加了59.9%。结论 工件表面初始温度在一定范围内能够有效降低切削温度，减弱切屑的锯齿状特征，在合适的工件表面初始温度下，热效应促进了工件表面塑性变形层的动态再结晶行为，工件表面加工硬化率略有下降;工件初始温度较高时，加工表面发生氧化反应，硬度提高，工件与前刀面产生更多的摩擦热，切削温度急剧增加，同时切屑的锯齿状特征更为显著，工件表面质量降低。 |
| 英文摘要: |
| The purpose of this article is to explore the influence of thermal effects under electric pulse-assisted hard turning on the machining process of ZGCr61 hardened bearing steel. By investigating the influence of different initial temperature (25, 70, 90, 110, 130 ℃) of the workpiece surface on the cutting temperature, chip formation, surface roughness, workpiece surface work hardening, and microstructure of the workpiece surface strengthening layer, the study aims to reveal the mechanism of thermal effects on the machining process of hardened bearing steel. As the initial temperature of the workpiece surface increases, the plasticity of ZGCr61 hardened bearing steel increases slightly, the cutting temperature decreases slightly, the sawtooth characteristics of the chips are weakened, and the shear strain in the shear band decreases by 30.7%. The height of the cutting ridge on the workpiece surface gradually decreases, and the adhesion defects of the chips decrease. The minimum surface roughness can reach 0.288 μm, which is 7.9% lower than that obtained by conventional turning. When the initial temperature of the workpiece surface is 110 ℃, the depth of the surface strengthening layer reaches 8.78 μm, which is 59.9% higher than that obtained by conventional hard turning. Within a certain range, the initial temperature of the workpiece surface can effectively reduce the cutting temperature and weaken the sawtooth characteristics of the chips. At an appropriate initial temperature, the thermal effect promotes dynamic recrystallization behavior in the plastic deformation layer on the workpiece surface, and the work hardening rate slightly decreases. However, when the initial temperature of the workpiece surface is higher, oxidation reactions occur on the machining surface, increasing hardness and generating more frictional heat between the workpiece and the tool face. This results in a sharp increase in cutting temperature, more pronounced sawtooth characteristics of the chips, and a decrease in workpiece surface quality. |
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