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γ-TiAl合金納米切削過程中隨機表面粗糙度影響的原子模擬
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1.蘭州理工大學 機電工程學院，甘肅 蘭州 730050;2.蘭州理工大學 數(shù)字制造技術與應用省部共建教育部重點實驗室，甘肅 蘭州 730050

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國家自然科學基金（52065036）;甘肅省自然科學基金（20JR5RA448）;蘭州理工大學紅柳一流學科發(fā)展計劃


Atomistic Simulation of Effects of Random Roughness on Nano-cutting Process of γ-TiAl Alloy
Author:
Affiliation:

1.School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou 730050, China;2.Key Laboratory of Digital Manufacturing Technology and Application, Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China

Fund Project:

National Natural Science and Foundation of China (52065036); Natural Science Foundation of Gansu Province (20JR5RA448); Hongliu First-Class Disciplines Development Program of Lanzhou University of Technology

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    摘要:

    采用分子動力學模擬方法研究了隨機粗糙度對γ-TiAl合金納米尺度切削的影響。為了模擬真實工件表面，在考慮刀具不同前角和切削深度的情況下，采用多參數(shù)的Weierstrass-Mandelbrot（W-M）函數(shù)生成隨機表面粗糙度，用工件的等效高度來量化切削深度。結果表明，粗糙度對工件的納米切削有不可忽視的影響。此外，粗糙度的影響在不同切削參數(shù)的情況下也不同。

    Abstract:

    The molecular dynamics simulations were conducted to investigate the effects of random roughness on nano-cutting of γ-TiAl alloys. To simulate the actual workpiece surface, the random surface roughness was generated by a multivariate Weierstrass-Mandelbrot (W-M) function under the condition of different rake angles of cutter and depths of cutting. The equivalent height of the workpiece was used to quantify the depth of cutting. The molecular dynamics simulation results reveal that the roughness has a profound effect on the nano-cutting quality of the workpiece. Besides, the effects of roughness are also different under different cutting parameters.

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引用本文

馮瑞成,楊晟澤,邵自豪,姚永軍,張雋,曹卉,李海燕. γ-TiAl合金納米切削過程中隨機表面粗糙度影響的原子模擬[J].稀有金屬材料與工程,2022,51(5):1650~1659.[Feng Ruicheng, Yang Shengze, Shao Zihao, Yao Yongjun, Zhang Jun, Cao Hui, Li Haiyan. Atomistic Simulation of Effects of Random Roughness on Nano-cutting Process of γ-TiAl Alloy[J]. Rare Metal Materials and Engineering,2022,51(5):1650~1659.]
DOI：10.12442/j. issn.1002-185X.20210208

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歷史
  • 收稿日期:2021-03-12
  • 最后修改日期:2021-04-05
  • 錄用日期:2021-04-16
  • 在線發(fā)布日期: 2022-05-31
  • 出版日期: 2022-05-30