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首页> 外文期刊>Journal of Materials Science & Technology >Effects of Process Parameters on the Temperature Field in Ti-6Al-4V Alloy Blade Precision Forging Process
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Effects of Process Parameters on the Temperature Field in Ti-6Al-4V Alloy Blade Precision Forging Process

机译：工艺参数对Ti-6Al-4V合金叶片精密锻造过程中温度场的影响

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摘要

Blade precision forging is a high temperature and large plastic deformation process. Process parameters have a great effect on temperature distribution in billet, so in this paper, by taking a Ti-6AI-4V alloy blade with a tenon as an object, the influence of process parameters on the temperature distribution in precision forging process was investigated using 3D coupled thermo-mechanical FEM (finite element method) code developed by the authors. The results obtained illustrate that: (1) the gradient of temperature distribution increases with increasing the deformation degree; (2) with increasing the initial temperature of the billet, the zones of high temperature become larger, and the gradient of temperature distribution hardly has any increase; (3) friction factors have little effect on the distribution of temperature field; (4) with increasing upper die velocity, temperature of the billet increases while the temperature gradient in billet decreases. The results are helpful to the design and optimization of the process parameters in precision forging process of Ti-alloy blade.
机译：叶片精密锻造是高温和大塑性变形过程。工艺参数对坯料的温度分布有很大的影响，因此，本文以Ti-6AI-4V合金榫为刃口，研究了工艺参数对精锻过程中温度分布的影响。作者开发的3D耦合热机械FEM（有限元方法）代码。结果表明：（1）温度分布梯度随变形度的增加而增大； （2）随着钢坯初始温度的升高，高温区域变大，温度分布梯度几乎没有增加； （3）摩擦系数对温度场的分布影响很小； （4）随着上模速度的增加，坯料的温度升高而坯料的温度梯度降低。研究结果有助于钛合金叶片精密锻造工艺参数的设计和优化。

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