Transactions of Materials and Heat Treatment

Title：Research on cold forging process of progressive die of T iron for telephone receiver

Authors： HUANG Zhen-yuan GUO Lei RUAN Feng(Mechanism and Automobile Engineering College South China University of Technology Guangzhou 510640 China)

Unit：

KeyWords： FEM progressive die impression die forging with small flash blocking impression die forging

ClassificationCode：TG316

year,vol(issue):pagenumber：2009,34(5):80-84

Abstract：

FEM was used to research the cold forging process for progressive die of small and precise T iron for telephone receiver.The filling capacity of the metal,forming forces and the feasibility of the die structures in the impression die forging process with small flash and the blocking impression die forging process were analyzed and compared with each other.The result shows that the blocking impression die forging is more suitable for the cold forging process of progressive die of telephone receiver T iron.The precision cold forging process in progressive die of T iron for telephone receiver was put forward,in which the blocking impression die forging was combined with the open finish forging.This process scheme not only can control the filling of the material effectively but also reduces the whole forming forces.

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Reference：

[1]Park K.Precision forging design and analysis in electronicspart manufacturing[J].Journal of Engineering Manufac-ture,1999,213(B1):11-20.
[2]Tsai Sheng Chi.The precision cold forging of the strip mate-rial in the progressive die process[J].Journal of the ChineseSociety of Mechanical Engineers,2005,(4):397-400.
[3]Tai C W.The development of cold forging progressive dietechnology for the case of slim type spindle motor[A].Pro-ceedings of the 11th International Conference[C].Germany:Trans.Tech.Publications,2005.
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