机车车轴残余应力测试  

Residual Stress Testing of Locomotive Axles

作　　者：唐绘兴 孙德涛 Tang Huixing;Sun Detao(Shanghai Jinyi Testing Technology Co.,Ltd.,Anhui 243032)

机构地区：[1]上海金艺检测技术有限公司,安徽马鞍山243032

出　　处：《冶金设备》2023年第4期111-112,115,共3页Metallurgical Equipment

摘　　要：本文采用切割法和应变测试技术对机车车轴残余应力进行现场测试,通过测试数据计算出车轴表面的圆周残余应力及表面下2mm处的残余应力,测试方法理论完善,结果准确可靠。机车车轴残余应力的测试为全面掌握车轴残余应力提供依据,进而为热处理工艺参数控制提供参考。Cutting method and strain testing technology to conduct on-site testing of residual stress on locomotive axles are used in this paper.Through the test data,the circumferential residual stress on the surface of the axle and the residual stress at 2mm below the surface are further calculated.The testing method is theoretically sound and the results are accurate and reliable.The testing of residual stress on locomotive axles provides a basis for comprehensive understanding of residual stress on axles,and thus provides a reference for controlling heat treatment process parameters.

关 键 词：机车车轴 残余应力 应变测试 切割法 

分 类 号：TP183[自动化与计算机技术—控制理论与控制工程] TP212[自动化与计算机技术—控制科学与工程]