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基于接觸摩擦量化作用的鎂合金軋制力預(yù)報研究
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東北大學(xué) 材料電磁過程研究教育部重點(diǎn)實(shí)驗(yàn)室,東北大學(xué) 材料電磁過程研究教育部重點(diǎn)實(shí)驗(yàn)室,東北大學(xué) 材料電磁過程研究教育部重點(diǎn)實(shí)驗(yàn)室

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TG146.22

基金項(xiàng)目:

國家自然科學(xué)基金、NSFC-山西省煤基低碳聯(lián)合基金、晉城市科技計劃項(xiàng)目


Prediction for Magnesium Alloy Rolling Force Based on Quantitative study of Contact-friction
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Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University,Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University,Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University

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    摘要:

    本研究針對鎂合金熱軋制工藝，通過協(xié)調(diào)有限元分析結(jié)果及物理試驗(yàn)數(shù)據(jù)，提出一種關(guān)于熱軋制接觸摩擦因子的確定方法，耦合多軋制工藝參數(shù)進(jìn)一步擬合出其求解關(guān)系式，工藝參數(shù)包括：軋制溫度，軋制速度以及壓下率。在之前對AZ31B鎂合金板材軋制過程軋制力預(yù)報模型及溫度場數(shù)學(xué)模型建立研究的基礎(chǔ)上，綜合考慮接觸單位壓力及摩擦應(yīng)力兩方面因素的作用，對前期軋制力預(yù)報模型進(jìn)行了優(yōu)化重構(gòu)，經(jīng)確定接觸摩擦作用到軋輥的壓力約占整體軋制力的4.36%。

    Abstract:

    Study focused on the magnesium alloy hot rolling process. A method was proposed to determine the friction coefficient in process through the comparative analysis of finite element analysis result and experimental data. Mathematical model for solving the friction coefficient was established, combining with multi-parameters of the rolling process: rolling temperature, rolling speed and reduction rate. Based on calculation model of rolling force and temperature distribution along the contact region in hot rolling of AZ31B magnesium alloy in previous research, rolling force prediction model was optimized and reconstructed considering the normal pressure and friction stress comprehensively. The contact friction stress and its influence on rolling force with an approximate percentage of 4.36% was defined.

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賈偉濤,樂啟熾,唐巖.基于接觸摩擦量化作用的鎂合金軋制力預(yù)報研究[J].稀有金屬材料與工程,2017,46(10):2763~2769.[Jia Weitao, Le Qichi, Tang Yan. Prediction for Magnesium Alloy Rolling Force Based on Quantitative study of Contact-friction[J]. Rare Metal Materials and Engineering,2017,46(10):2763~2769.]
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  • 收稿日期:2015-10-12
  • 最后修改日期:2016-05-17
  • 錄用日期:2016-05-19
  • 在線發(fā)布日期: 2017-12-01
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