DEVELOPMENT OF FRACTAL DIMENSION AND CHARACTERISTIC ROUGHNESS MODELS FOR TURNED SURFACE OF CARBON STEELS

作者：Zuo, Xue; Zhu, Hua^*; Zhou, Yuankai; Ding, Cong; Sun, Guodong

来源：Fractals-Complex Geometry Patterns and Scaling in Nature and Society, 2016, 24(4): 1650012.

DOI：10.1142/S0218348X16500420

• Turned Surface
• Response Surface Methodology
• Fractal Dimension
• Characteristic Roughness
• Surface Roughness

Relationships between material hardness, turning parameters (spindle speed and feed rate) and surface parameters (surface roughness Ra, fractal dimension D and characteristic roughness tau*) are studied and modeled using response surface methodology (RSM). The experiments are carried out on a GNU lathe for six carbon steel material AISI 1010, AISI 1020, AISI 1030, AISI 1045, AISI 1050 and AISI 1060. The profile of turned surface and the surface roughness value are measured by a,JB-5C profilorneter. Based on the profile data, D and tau* are computed through the root-mean-square method. The analysis of variance (ANOVA) reveals that spindle speed is the most significant factors affecting Ra, while material hardness is the most dominant parameter affecting tau*. Material hardness and spindle speed have the same influence on D. Feed rate has less effect, on three surface parameters than spindle speed and material hardness.

• 出版日期2016-12
• 单位中国矿业大学（北京）