不同硬度Cr12MoV焊接件的力学性能研究  

Study on Mechanical Properties of Welded Parts of Cr12MoV with Different Hardness

作　　者：王扬渝[1] 朱海军[1] 陈珍珍[1] 孔凡志[1] 程金强[1] 

机构地区：[1]浙江工业大学特种装备制造与先进加工技术教育部重点实验室,浙江杭州310014

出　　处：《热加工工艺》2017年第23期173-175,179,共4页Hot Working Technology

基　　金：国家自然科学基金项目(51405440);浙江省自然科学基金一般项目(LY16E050013);浙江省自然科学基金项目(LY17E050021)

摘　　要：对三种不同硬度Cr12Mo V淬硬钢的焊接件进行了显微硬度、铣削力、振动信号测试。结果表明:焊接件的显微硬度存在不均匀性,焊缝处的显微硬度最大。在焊缝处的铣削过程中,铣削力呈现梯形的变化趋势,且焊缝处的铣削力最大。在焊缝处铣削的加速度峰值增大,且容易处于铣削振动加剧状态。The microhardness, milling force and vibration signal were tested for the welded part of Cr12MoV hardened steels with three different hardness. The results show that the microhardness of the welded parts is not uniform, and the microhardness at the weld zones is the maximum. Dttring the milling process at the zones, the milling force presents a trapezoidal variation, and the milling force at the weld zones is the largest. The peak value of acceleration at the weld seam increases, and it is easy to be in the state of milling vibration at the weld zone.

关 键 词：不同硬度 焊接件 显微硬度 铣削力 振动信号 

分 类 号：TG142.12[一般工业技术—材料科学与工程]