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晶體取向?qū)尉Е?TiAl合金納米切削的影響研究
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長春理工大學(xué)

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National?Natural?Science?Foundation?of?China (51206011 and U1937201),?Science?and?Technology??Development?Program of Jilin Province (20200301040RQ), Project?of?Education?Department?of?Jilin?Province (JJKH20190541KJ)，Science?and?Technology?Program of Changchun City (18DY017)


Effect of crystal orientation on nanometer cutting of single crystalγ-TiAl alloy
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Changchun University of Science and Technology

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National?Natural?Science?Foundation?of?China (51206011 and U1937201),?Science?and?Technology??Development?Program of Jilin Province (20200301040RQ), Project?of?Education?Department?of?Jilin?Province (JJKH20190541KJ)，Science?and?Technology?Program of Changchun City (18DY017)

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    摘要:

    為了研究晶體取向?qū)尉Е?TiAl合金納米切削過程的影響，采用分子動力學(xué)數(shù)值方法對不同切削晶向下的切削力、切削溫度、材料去除及晶格結(jié)構(gòu)變化進行分析和探討，揭示不同的晶體取向?qū)尉Е?TiAl合金納米切削質(zhì)量作用機制。研究結(jié)果表明：在納米切削過程中，隨著晶面和晶向的變化，切削力、切削溫度、材料去除和晶格結(jié)構(gòu)都會有不同程度的變化；選擇(010)晶面作為切削平面時切削力較小，產(chǎn)生的切削熱較少，γ-TiAl合金表面加工質(zhì)量較好，晶格結(jié)構(gòu)轉(zhuǎn)變較少；(010)[100]切削晶向下工件產(chǎn)生的切削熱較少且最容易切削，晶格結(jié)構(gòu)轉(zhuǎn)變最少，γ-TiAl合金表面加工質(zhì)量最優(yōu)。

    Abstract:

    In order to study the effect of crystal orientation on the nano-cutting process of single crystal γ-TiAl alloy, molecular dynamic numerical methods were used to analyze and discuss the cutting force, cutting temperature, material removal and lattice structure changes of different cutting crystal directions, revealing different mechanism of crystal orientation on nano-cutting quality of single crystal γ-TiAl alloy. The results show that during the nano-cutting process, the cutting force, cutting temperature, material removal and lattice structure change with the change of crystal surface and crystal direction. When the (010) crystal plane is selected as the cutting plane, the cutting force is smaller, the cutting heat generated is less, the surface processing quality of the γ-TiAl alloy is better, and the lattice structure is changed less. The workpiece in the direction of (010) [100] cutting crystals produces less cutting heat and is the easiest to cut, with the least transformation of lattice structure and the best surface processing quality of the γ-TiAl alloy

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李俊燁,解鴻偲,趙偉宏,張心明,王菲,石廣豐.晶體取向?qū)尉Е?TiAl合金納米切削的影響研究[J].稀有金屬材料與工程,2021,50(3):816~823.[Li Junye, Xie Hongcai, Zhao Weihong, Zhang Xinming, Wang Fei, Shi Guangfeng. Effect of crystal orientation on nanometer cutting of single crystalγ-TiAl alloy[J]. Rare Metal Materials and Engineering,2021,50(3):816~823.]
DOI：10.12442/j. issn.1002-185X. E20200006

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  • 收稿日期:2020-03-02
  • 最后修改日期:2020-06-12
  • 錄用日期:2020-06-30
  • 在線發(fā)布日期: 2021-04-02
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