论文部分内容阅读
模拟摩擦效应对镍基合金管材热挤压的不良影响,着重从挤压力方面讨论了挤压过程的可行性。研究表明:钢坯两侧润滑系数f在0.02～0.03,玻璃垫处在0.01附近,金属匀速流动,径向应力应变分布均匀;当f>0.05时,会造成挤压曲线震荡,不利于热挤压的进行。
Simulation of friction effect on the hot extrusion of nickel-based alloy pipe adverse effects, focusing on the squeeze from the pressure discussed the feasibility of the extrusion process. The results show that the lubrication coefficient f is 0.02-0.03 on both sides of the billet, the thickness of the glass mat is about 0.01, the flow of metal is uniform and the distribution of radial stress and strain is uniform. When f> 0.05, the extrusion curve will be oscillated, which is unfavorable to hot extrusion To carry out.