Feature Decoupling and Shape Simulation of Turning Rough Surface

doi:10.3901/JME.2019.23.200

Abstract

Abstract: Combined with the kinematics and cutting theory of machine tools, the influencing factors of surface topography in turning process are classified and summarized. Based on the idea of decoupling complex and superimposed signals, the topography signal is divided according to the wavelength relationship by spectrum analysis. The influence of processing parameters on the signal amplitude of each wavelength band is obtained. It has solved the problem that direct analysis of the decoupling of many processing parameters causes missing of the parameters that must be considered and the complex adding of the signal components cannot be decoupled directly. In view of the difficulty of extracting relatively fine rough surface signals directly, machined surface is divided into two types:Rough surface and fine surface according to the roughness value. Starting with extracting the relatively rough surface, the influence rule of each processing component information on the actual topography is obtained. The corresponding signal components are used to replace the wavelet band signals respectively. According to this method, the relatively rough surface topography is obtained by simulation. Then the influence rule is applied to the analysis of relatively fine surface. The representation and decoupling of signal components from relatively rough surface to relatively fine surface is realized. The method presented provides a new approach for the prediction and simulation of relatively fine rough surface. Finally, the simulation of turning rough surface is realized by present method, which provides digital model for the prediction and contact analysis of turning rough surface.

Key words: turning machining, surface topography, spectrum analysis, amplitude gradient, signal decoupling, topography simulation, digital model

CLC Number:

TH123

AN Qi, SUO Shuangfu, LIN Fuyan, LI Yongjian, SHI Jianwen. Feature Decoupling and Shape Simulation of Turning Rough Surface[J]. Journal of Mechanical Engineering, 2019, 55(23): 200-209.

References

[1] BHUSHAN B. Introduction to tribology[M]. 2nd ed. New York:John Wiley & Sons, 2013.
[2] LIAO D, SHAO W, TANG J, et al. An improved rough surface modeling method based on linear transformation technique[J]. Tribology International, 2017, 119(12):786-794.
[3] WU J J. Simulation of rough surfaces with FFT[J]. Tribology International, 2000, 33(1):47-58.
[4] WU J J. Simulation of non-Gaussian surfaces with FFT[J]. Tribology International, 2009, 37(4):339-346.
[5] WANG Y, YING L, ZHANG G, et al. A simulation method for non-Gaussian rough surfaces using FFT and translation process theory[J]. Journal of Tribology, 2017, 140(2):021403.
[6] 胡松涛,黄伟峰,史熙,等. 基于双高斯分层表面理论的机械密封研究综述[J]. 机械工程学报, 2019, 55(1):103-117. HU Songtao, HUANG Weifeng, SHI Xi, et al. Review on mechanical seals using a bi-Gaussian stratified surface theory[J]. Journal of Mechanical Engineering, 2019, 55(1):103-117.
[7] 史建成,刘检华,丁晓宇,等. 基于确定性模型的金属表面多尺度接触行为研究[J]. 机械工程学报, 2017, 53(3):111-120. SHI Jiancheng, LIU Jianhua, DING Xiaoyu, et al. On the multi-scale contact behavior of metal rough surface based on deterministic model[J]. Journal of Mechanical Engineering, 2017, 53(3):111-120.
[8] HE Yanfei, TANG Jinyuan, ZHOU Wei, et al. Research on the obtainment of topography parameters by rough surface simulation with fast fourier transform[J]. Journal of Tribology, 2015, 137(3):031401.
[9] PEI L, HYUN S, MOLINARI J F, et al. Finite element modeling of elasto-plastic contact between rough surfaces[J]. Journal of the Mechanics and Physics of Solids, 2005, 53(11):2385-2409.
[10] HUANG J, GAO C, CHEN J, et al. Thermomechanical analysis of an elastoplastic rough body in sliding contact with flat surface and the effect of adjacent contact asperity[J]. Advances in Mechanical Engineering, 2015, 7(5):1-10.
[11] LIU S, WANG Q. A three-dimensional thermomechanical model of contact between non-conforming rough surfaces[J]. Journal of Tribology, 2001, 123(1):17-26.
[12] TAKASU S, MASUDA M, NISHIGUCHI T, et al. Influence of study vibration with small amplitude upon surface roughness in diamond machining[J]. CIRP Annals-Manufacturing Technology, 1985, 34(1):463-467.
[13] TSAI M D, TAKATA S, INUI M, et al. Prediction of chatter vibration by means of a model-based cutting simulation system[J]. CIRP Annals-Manufacturing Technology, 1990, 39(1):447-450.
[14] LIN S C, CHANG, M F, et al. A study on the effects of vibrations on the surface finish using a surface topography simulation model for turning[J]. International Journal of Machine Tools, 1998, 38(7):763-782.
[15] ABOUELATTA O B, MÁDL J. Surface roughness prediction based on cutting parameters and tool vibrations in turning operations[J]. Journal of Materials Processing Tech, 2001, 118(1):269-277.
[16] BORYCZKO A. Measurement of relative tool displacement to the workpiece for the assessment of influences of machining errors on surface profiles[J]. Measurement, 2002, 31(2):93-105.
[17] CHEUNG C F, LEE W B. Modelling and simulation of surface topography in ultra-precision diamond turning[J]. Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture,2000,214(6):463-480.
[18] CHEUNG C F, LEE W B. Characterisation of nanosurface generation in single-point diamond turning[J]. International Journal of Machine Tools Manafacture, 2001, 41(6):851-875.
[19] LEE Rongbin, ZHANG Zhihui, LI Jianguang. Prediction of 3-D surface topography in ultra-precision machining[J]. China Mechanical Engineering, 2000, 11(8):845-849.
[20] CHEUNG C F, LEE W B. Theoretical and experimental investigation of surface roughness formation in ultra-precision diamond turning[J]. International Journal of Machine Tools, 2000, 40(7):979-1002.
[21] LEE W B, CHEUNG C F. A dynamic surface topography model for the prediction of nano-surface generation in ultra-precision machining[J]. International Journal of Mechanical Sciences, 2001, 43(4):961-991.
[22] HUANG P, LEE W B, CHAN C Y. Investigation of the effects of spindle unbalance induced error motion on machining accuracy in ultra-precision diamond turning[J]. International Journal of Machine Tools Manufacture, 2015, 94:48-56.
[23] SULLIVAN P J, MAINSAH E, DONG WEIPING. Three dimensional surface topography, measurement, interpretation and applications[M]. London and Bristol, Pennsylvania:Penton Press, 1994.
[24] THOMAS T R. Rough surfaces[M]. 2nd ed. United Kingdom:Imperial College Press, 1999.
[25] 陈日曜. 金属切削原理[M]. 2版. 北京:机械工业出版社, 2005. CHEN Riyao. Principles of metal cutting[M]. 2nd ed. Beijing:China Machine Press, 2005.
[26] 陆剑中, 孙家宁. 金属切削原理与刀具[M]. 5版. 北京:机械工业出版社, 2011. LU Jianzhong, SUN Jianing. Metal cutting principle and cutting tool[M]. 5th ed. Beijing:China Machine Press, 2011.