Transactions of Materials and Heat Treatment

Title：Normal and anomalous failures of finish hot-forging die for air valves

Authors： Guangdong Huaiji Auto accessories Manufacturer Shi zhongliang Chen Desheng Mo Dongqiang Zhou Husheng Guangdong University of Technology Cai Lianshu Pan Zhenpeng Wang Guitang

Unit：

KeyWords： Air valve Forging die Failure analysis

ClassificationCode：TG315.2

year,vol(issue):pagenumber：2001,26(5):58-60

Abstract：

The failure mode of the air valve finish hot forging die in normal circumstance are the hot wear,collapse or hot fatigue crack, but the die would failed as fracturing, scratching, pitting, blank griping ect due to some anomalous circumstance This paper discuses these failures and their effects upon the die life and the economic benefits

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Reference：

1　洪深泽挤压工艺及模具设计北京:机械工业出版社,1996:110114
2　潘振鹏,罗天友,李芬等气门热精锻模具新材料新技术与系统工程金属热处理,1999(9):36～39

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