CAJ | 학술논문

微细铣削加工表面形貌特征的评价与表征对微细切削加工表面的形成机理、加工表面的形成与工艺参数之间的关系等的研究有重要意义。应用分形几何理论,采用盒计数法对微细铣削加工表面形貌进行研究。结果表明：微细铣削表面具有明显的分形特征,其盒计数维数在1.32～1.42之间,说明其加工表面形貌比较复杂,同时证明加工表面轮廓的分形维数D与表面粗糙度Ra没有相关性,进而可以从分形维数D与表面粗糙度Ra两方面对微细铣削加工表面形貌特征进行综合评价。
미세선삭가공표면형모특정적평개여표정대미세절삭가공표면적형성궤리、가공표면적형성여공예삼수지간적관계등적연구유중요의의。응용분형궤하이론,채용합계수법대미세선삭가공표면형모진행연구。결과표명：미세선삭표면구유명현적분형특정,기합계수유수재1.32～1.42지간,설명기가공표면형모비교복잡,동시증명가공표면륜곽적분형유수D여표면조조도Ra몰유상관성,진이가이종분형유수D여표면조조도Ra량방면대미세선삭가공표면형모특정진행종합평개。
Evaluation and characterization of micro milling surface topography is of very important significance for the study of micro machined surface formation mechanism and the relationship between machined surface formation and the processing parameters.This paper describes the calculation of the fractal dimension of the milled surface profile,based on the fractal geometry theory and using the box-counting method and study on micro milling surface morphology combined with the surface roughness Ra.The results show that micro milling surface with obvious fractal characteristics has the box-counting dimension varying generally between 1.32 and 1.42,leaving the machined surface topography more complex.The analysis proves no correlation between fractal dimension D of the processing surface contour and the surface roughness Ra.The comprehensive evaluation of micro milling surface morphology features is possible from two aspects of the fractal dimension D and the surface roughness Ra.