基于正交试验的闭式挤压工艺参数优化

发布时间：2018-06-30 18:27

  本文选题：L不锈钢 + 闭式挤压　； 参考：《塑性工程学报》2017年03期

【摘要】：以农用机械传动部件"流转插头"为例,利用DEFORM-3D软件对挤压成形过程进行分析,揭示了该类316L不锈钢锻件的热锻造成形载荷和热磨损的变化规律。基于正交试验法全面分析了坯料初始温度、模具初始温度、打击速度、模具硬度对成形载荷和模具磨损深度的影响规律。结果表明:4组因素中,打击速度对成形载荷的影响最大,模具硬度对模具磨损深度的影响最大;综合考虑4个因素的模拟结果确定了最优方案,即坯料初始温度为1150℃、模具初始温度为250℃、打击速度为0.3 m·s~(-1)、模具硬度为62HRC。实际生产发现,按照最优方案中的初始温度和打击速度能够生产出质量合格的锻件。
[Abstract]:Taking the "flow plug" as an example, the extrusion forming process was analyzed by DEFORM-3D software, and the variation of forming load and wear of the 316L stainless steel forgings was revealed. Based on the orthogonal test, the effects of the initial temperature of the blank, the initial temperature of the die, the impact speed and the hardness of the die on the forming load and the wear depth of the die are analyzed. The results show that the impact velocity has the greatest influence on the forming load and the hardness of the die has the greatest influence on the wear depth of the die among the four groups of factors, the optimum scheme is determined by synthetically considering the simulation results of four factors, that is, the initial temperature of the blank is 1150 鈩，

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