本文对ZnAl_(4-1)、ZnAl_(5-0.03)锌合金的超塑性及其成形进行了研究。两种合金在变形温度分别为350℃、325℃,变形速度为1～10毫米/分、1～50毫米/分下都能呈现很高的延伸率(2000%、>3200%)和相当低的流动应力(0.31千克/毫米~2、0.17千克/毫米~2)。两种合金都可以在超塑性条件下一次形成(挤压或气压)形状复杂的零件,还可以超塑挤压冲裁模和塑料模型腔。 In this paper, the superplasticity and forming of ZnAl_ (4-1) and ZnAl_ (5-0.03) zinc alloys were studied. Both alloys exhibit very high elongation (2000%,> 3200%) and very low deformation rates of 1 to 10 mm / min at deformation temperatures of 350 ° C, 325 ° C and 1 to 50 mm / min Of the flow stress (0.31 kg / mm ~ 2,0.17 kg / mm ~ 2). Both alloys are capable of forming (extruded or pneumatically pressed) complex shaped parts under superplastic conditions, as well as superplastic extrusion of blanking dies and plastic mold cavities.