理化检验-物理分册2017，Vol.53Issue(1)：58-61,4.DOI:10.11973/lhjy-wl201701013
齿轮壳安装定位柱断裂失效分析
Fracture Failure Analysis of Locating Columns of Gear Housings
蔡玉冬1
作者信息
- 1. 博世 中国 投资有限公司 亚太检测中心，上海 200335
- 折叠
摘要
Abstract
The fracture of locating columns of gear housings made from aluminum alloy happened before and during assembly period.Means such as chemical composition analysis,fracture macrographic examination,scanning electronic microscope and energy spectrum analysis,metallographic examination were used to comprehensively analyze fracture reasons of locating columns.The results show that:the improper casting process of gear housings resulted in the casting defects in casting pieces,such as amounts of gas porosity,shrink porosity and cold shots, which was the main reason for the brittle fracture of locating columns of this batch of gear housings.Finally,the improved measures were brought forward for casting process of gear housings.关键词
齿轮壳/铸造铝合金/断裂/气孔/缩孔/冷豆/铸造缺陷Key words
gear housing/casting aluminum alloy/fracture/gas porosity/shrinkage/cold shot/casting defect分类
矿业与冶金引用本文复制引用
蔡玉冬..齿轮壳安装定位柱断裂失效分析[J].理化检验-物理分册,2017,53(1):58-61,4.
