TB6钛合金材料本构关系的试验研究

Experimental Study of the Constitutive Relationship of TB6 Titanium Alloy

1.
School of Mechanical Engineering,Northwestern Polytechnical University,Xi'an 710072

摘要: 基于有限元技术的金属材料加工数值模拟对于改善加工工艺、提高工件表面质量、实现高效加工具有重要意义,其中描述材料应力应变关系的本构模型是这一分析手段的基础条件。针对TB6钛合金材料加工数值模拟分析的需要,基于万能试验机、gleeble热模拟试验机和霍普金森杆试验装置,设计并开展了多种应变率和温度工况条件下的TB6钛合金材料应力-应变试验,基于试验工作建立了TB6钛合金材料的本构关系。
- TB6钛合金 /
- 本构模型 /
- 加工
Abstract: Numerical simulation of metal machining based on FEM has great significance for both improving the ma-chining technology and enhancing surface integrity and realizing high efficiency machining. In this paper,in orderto the simulation demand of TB6 titanium alloy machining, the experiment for getting stress-strain curves at differenttemperature and strain rate has been designed and carried out with universal testing machine, Gleeble thermal simu-lator and Hopkinson bar testing apparatus. Based on the experimental data, the constitutive relationship of TB6 tita-nium alloy has been established.
- TB6 titanium alloy /
- constitutive relationship machining /
- temperature

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