By analysing the volume variation during steel tube upsetting,the relationships of the length decrease with the upsetting length and the wall thickness increase during steel tube upsetting deformation were obtained.
通过对钢管加厚过程体积变化的研究,指出钢管加厚变形过程中的长度缩短量与钢管加厚长度和壁厚增加量的关系:钢管长度缩短量与其加厚长度成正比,与其壁厚增加量成反比。
