Transactions of Materials and Heat Treatment

Title：Numerical simulation of temperature field of copper flat wire continuous extrusion forming

Authors： WU Peng-yue1 XIE Shui-sheng1 YAN Ming2 CHENG Lei1 HUANG Guo-jie1(1.State Key Laboratory for Fabrication and Process of Nonferrous Metals General Research Institute for Nonferrous Metals Beijing 100088 China 2.Yunnan Copper Products Co. Ltd. Kunming 650102

Unit：

KeyWords： temperature field continuous extrusion extrusion wheel velocity copper flat wire

ClassificationCode：TG371

year,vol(issue):pagenumber：2007,32(3):46-49

Abstract：

The continuous extrusion forming(CONFORM) process of copper flat wire was studied by three-dimensional finite-element method based on Software Deform-3D.The rigid-viscoplastic constitutive equation was employed in the model.Distribution of temperature field of copper flat wire continuous extrusion forming was obtained under different extrusion wheel velocities in the forming process.Deformation body temperature was increased remarkably due to friction and deformation power in the CONFORM process.The increased temperature was in the compression wheel press-down and upset stages.So the increase of deformation body temperature was mainly from deformation power.The die could be softened when the extrusion wheel velocity exceeds 1.2564 rad·s-1.So the extrusion wheel velocity should not exceed 1.2564 rad·s-1 in the CONFORM of the copper flat wire.

Funds：

云南省科技攻关项目(2005yx12)

Reference：

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