钛合金薄壁筒形件热胀形法精确成形技术
Hot Bulging Precision Forming Process for Titanium Alloy Thin Wall Barrel-shaped Parts
杨 春
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作者单位：（中国空空导弹研究院，河南 洛阳 471009）
中文关键字：热胀形； 线胀系数； 胀形芯轴
英文关键字：hot bulge forming； linear expansion coefficient； expansion mandrel
中文摘要：利用热胀形对钛合金薄壁筒形件精确成形是一种新的成形方法，胀形芯轴设计是热胀形精确成形关键技术之一。本文阐述了热胀形成形原理、胀形芯轴材料的选取、尺寸的确定及结构设计，给出了热胀形成形工艺流程。
英文摘要：The precision forming of thin wall barrel-shaped parts of titanium alloy by thermal expansion is a new forming method, the expansion mandrel design is one of key technologies in the hot bulge precise forming. The principle of thermal expansion forming, the material selection and the determining of the size and structural design of expansion mandrel were discussed, the thermal expansion forming process was given.