高能脉冲精密冷补技术用于修复零件表面局部缺损  

High Energy Pulse Precision Cold-welding Technology for Repairing Local Surface Default of Metal Parts

作　　者：张庆[1] 孟令东[2] 杨军伟[1] 原津萍[2] 

机构地区：[1]装甲兵工程学院装备再制造工程系,北京100072 [2]装甲兵工程学院全军装备表面工程重点实验室,北京100072

出　　处：《中国表面工程》2011年第1期79-83,共5页China Surface Engineering

基　　金：再制造技术重点实验室基金项目(914OC85030210OC8504)

摘　　要：高能脉冲精密冷补技术由于其独特的能量输出方式,在实现金属零件表面修复时具有修复速度快、热量输入小和结合强度高的特点。通过对液压柱塞杆划伤表面的实际修复和修复区域的性能测试,结果表明:修复层与基体无明显气孔,结合紧密,HAZ宽度为130μm,修复层平均显微硬度为520 HV,耐磨性能较基体提高36.4%。说明高能脉冲精密冷补技术是一种操作简单,性能可靠的新型修复技术。Due to the unique energy output mode,high energy pulse precision cold-welding technology with many characteristics,such as fast repair,small heat input and high bonding strength was adopted to repair the metal parts.Through repairing scratch surface of hydraulic piston rod and testing the repaired surface,the results showed that the bonding between the repaired layer and the substrate was strong and there was no significant micro-pore.The width of HAZ was 130 μm.The average hardness of repaired layer was 520 HV.The abrasion resistance improved about 36.4 % compared with the substrate.The high energy pulse precision cold-welding technology is a simple,reliable new repair technique.

关 键 词：高能脉冲 表面缺损 精密冷补 

分 类 号：TH17[机械工程—机械制造及自动化]