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针对发动机壳体零件的特点,分析了其热挤压成形工艺,并利用数值模拟软件,确定了发动机壳体的挤压成形方式,同时分析了初始变形温度,变形速度对最大成形载荷的影响;通过多次模拟得到了发动机壳体热挤压成形的最优工艺参数,并分析了在最优工艺参数下,发动机壳体挤压成形时金属的流动规律和压力-行程曲线,从而保证了挤压件的质量,为实际生产提供了理论基础。
According to the characteristics of the engine housing parts, the hot extrusion forming process was analyzed. The numerical simulation software was used to determine the extrusion forming method of the engine housing. The influence of initial deformation temperature and deformation speed on the maximum forming load was also analyzed. Through several simulations, the optimum process parameters of hot extrusion forming of the engine shell were obtained. The flow rule and pressure-stroke curve of the metal during the extrusion process of the engine shell under the optimal process parameters were analyzed, The quality of pressure parts provides the theoretical basis for actual production.