基于有限元的发动机连杆衬套温挤压工艺参数优化

发布时间：2018-11-11 15:28

【摘要】：以锡青铜连杆衬套为研究对象,通过Deform-3D软件进行了数值模拟。利用单一因素工艺参数试验法和正交试验优化试验方法对发动机连杆衬套的温挤压过程进行了数值模拟分析,得到了摩擦因数、温挤压速度、温挤压温度等参数在温挤压过程中对挤压力、损伤值的影响规律和显著性影响。利用极差分析得到了两组最优的温挤压工艺参数,并通过数值模拟两组较优解对挤压力、损伤值的影响规律的对比,最终得到一组最优解,即摩擦因数为0.1、温挤压速度为5 mm·s-1、温挤压温度为700℃。根据连杆衬套温挤压试验验证了使用优化后的工艺参数能够制造出表面质量高的成形件。
[Abstract]:The tin bronze connecting rod bushing was numerically simulated by Deform-3D software. The temperature extrusion process of engine connecting rod bushing was simulated and analyzed by single factor process parameter test method and orthogonal test optimization test method. The friction coefficient and temperature extrusion speed were obtained. The influence of temperature and other parameters on the extrusion force and damage value in the process of warm extrusion is significant. By means of range analysis, two groups of optimal warm extrusion process parameters are obtained. By comparing the effects of two groups of optimal solutions on extrusion pressure and damage value, a group of optimal solutions, that is, friction coefficient of 0.1, is obtained. The temperature extrusion temperature is 700 鈩，

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