Transactions of Materials and Heat Treatment

Title：Constitutive equation of HPb59-1 brass during hot compression and its application

Authors： XIAO Yan-hong GUO Cheng

Unit： Xi'an Jiaotong University

KeyWords： HPb59-1 brass constitutive equation hot-extrusion numerical simulation

ClassificationCode：TG376.2

year,vol(issue):pagenumber：2012,37(3):127-132

Abstract：

The high-temperature deformation behavior of HPb59-1 brass was investigated by isothermal compression tests in the temperature range of 650800 ℃ and the strain rate range of 0.1-10s-1. The true stess-true strain curves show that the stress level decreases with increasing of temperature and decreasing of strain rate. The constitutive equation of HPb59-1 brass was proposed by means of fitting the experimental data and verified. Then, the hot extrusion process of a part with square flange was analyzed using Deform-3D and the forming laws were obtained. Finally, the validity of this research results were proved by practice, which provided some references for engineering application.

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Reference：

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