本文对硬铝和镍基高温合金加软金属垫的热挤压过程进行了实验分析,结果表明,由于软金属垫的润滑作用,不仅大大地改善了这些合金的表面质量,而且降低了挤压变形力。例如,LY12包纯铝挤压后不再出现粗晶环,加纯铝垫变形力降下三分之一,塑性较低的GH37挤压坯料加45号钢垫后挤压出合格的燃气涡轮机的叶片。 In this paper, the hot extrusion process of ductile and nickel-based superalloy with soft metal pad was analyzed experimentally. The results show that not only the surface quality of these alloys is greatly improved due to the lubricating effect of the soft metal mat, but also the extrusion Deformation force. For example, LY12 package of pure aluminum no longer appear after the extrusion of coarse-grained ring, plus pure aluminum pad deformation down by one-third lower plasticity of GH37 extrusion billet plus 45 steel pad extruded after the qualified gas turbine blade.