理化检验-物理分册2025，Vol.61Issue(10)：29-31,35,4.DOI:10.11973/lhjy-wl240227
不同预制孔加工方式对扩孔试样性能的影响
The influence of different prefabricated hole processing methods on the performance of expanded hole specimens
蒋兰波 1历妍 1卢美娇 1宋丽荣1
作者信息
- 1. 宝钢湛江钢铁有限公司制造管理部,湛江 524072
- 折叠
摘要
Abstract
Different hole expansion testing machines were used to expand the holes of 780DP steel and 980DP steel cold-rolled automotive plates.The performance of the expanded hole specimens was analyzed using methods such as ultimate hole expansion ratio testing,scanning electron microscopy analysis,and metallographic examination.The results show that under the same material conditions,different prefabricated hole processing methods result in different test results for the ultimate hole expansion ratio.The ultimate hole expansion ratio of the sample drilled with a laser cutting machine was higher than that of the sample punched with a punching machine.关键词
冷轧板/扩孔率/激光切割/冲孔机/预制孔Key words
cold-rolled plate/hole expansion ratio/laser cutting/punching machine/prefabricated hole分类
通用工业技术引用本文复制引用
蒋兰波,历妍,卢美娇,宋丽荣..不同预制孔加工方式对扩孔试样性能的影响[J].理化检验-物理分册,2025,61(10):29-31,35,4.
