工艺参数对厚板小孔冲裁模具磨损的影响  

Influence of process parameters on the wear of small holes punching for thick plate

作　　者：魏良庆[1] 彭成允[2] 

机构地区：[1]重庆科创职业学院机电工程学院,重庆402160 [2]重庆理工大学材料科学与工程学院,重庆400050

出　　处：《模具技术》2016年第2期49-53,共5页Die and Mould Technology

摘　　要：在厚板小孔冲裁过程中,凸模的磨损非常严重。通过改变材料厚度、小孔直径、模具间隙、凸模硬度、摩擦因数等参数进行正交模拟,分析了不同工艺参数对凸模等效应力及磨损量的影响。结果表明,孔径比(d/t)、模具间隙对凸模的磨损影响较大,其他参数对凸模的磨损影响相对较小。在实际生产中,一定要严格控制孔径比和凸、凹模间隙,以保证凸模的刃磨寿命。During the process of small hole punching for thick plate,the wear of punch is very serious.Orthogonal simulation was conducted by changing the thickness,pore dia-meter,die clearance,punch hardness,friction coefficient.The influence of process parameters on equivalent stress and wear for the punch was analyzed.The results show that aperture ratio（d/t）and die clearance have a greater influence on the wear of punch.However,other parameters affect the wear slightly.In the actual production,d/t and the clearance must be strictly controlled so that the wear life of the punch can be guaranteed.

关 键 词：厚板 小孔冲裁 等效应力 磨损 

分 类 号：TG386[金属学及工艺—金属压力加工]