压下率与高径比在拔长时对镦粗难变形区孔洞闭合的影响

王杰, 余雨, 贾璐, 李景丹, 齐会萍

Effect of the Reduction Amount and the Height-to-diameter Ratio on the Closure of Voids in the Hard-to-deform Zone of Upset Forging during Elongation

WANG Jie, YU Yu, JIA Lu, LI Jingdan, QI Huiping

精密成形工程 . 2026, (6): 283 -290 . DOI: 10.3969/j.issn.1674-6457.2026.06.024