理化检验-物理分册2017，Vol.53Issue(11)：844-847,4.DOI:10.11973/lhjy-wl201711019
YG8硬质合金冲裁模具开裂原因分析
Analysis on Cracking Reasons of a Blanking Die of YG8 Cemented Carbide
金林奎 1欧海龙 2邹文奇 1杨宇飞 2方曼婷1
作者信息
- 1. 广东省东莞市质量监督检测中心,东莞 523808
- 2. 国家模具产品质量监督检验中心,东莞 523808
- 折叠
摘要
Abstract
The early cracking failure occurred to a blanking die of YG8 cemented carbide in the course of use. The cracking reasons of the blanking die were analyzed by macroscopic observation,hardness testing,scanning electron microscope and energy spectrum analysis,metallographic inspection and so on.The results show that:due to the poor preservation of the blanking die material,the tungsten powder contacted with the air and oxidized;as a result of that,there were a lot of brittleηphase and reticular cracks in the structure,and the indexes of the strength and toughness of the material drastically reduced;the blanking die couldn't bear the working stress during use,and the early cracking failure occurred.关键词
YG8硬质合金/冲裁模具/钨粉/氧化/脆性η相Key words
YG8 cemented carbide/blanking die/tungsten powder/oxidize/brittle η phase分类
矿业与冶金引用本文复制引用
金林奎,欧海龙,邹文奇,杨宇飞,方曼婷..YG8硬质合金冲裁模具开裂原因分析[J].理化检验-物理分册,2017,53(11):844-847,4.
