Study and Investigate Effects of Cutting Surface in CNC Milling Process for Aluminum based on Taguchi Design Method

Abstract

The part programmer can change the program on the control itself at the machine or PC with instantaneous results. This flexibility is the greatest advantage of the CNC system and probably the key element that contributed to such a wide use of the technology in modern manufacturing in the world. CNC machine tools require less operator inputs, provide greater improvement in productivity and increase the quality of the machined part. The purpose of this paper is to conduct research of machining parameters of the machine impact on product quality and productivity of the process. Therefore the relationship between surface roughness and material removal rate has become an important part for the analysis input 3 parameters such spindle speed, feed rate and depth of cut selected as a control factors in Taguchi technique design method of response variable optimization with keeping operating dry conditons and the usage only one tool inserts constant. Which each milling operation depend on material removal rate, and surface roughness are measured. An orthogonal array of 3level was used and Minitab were performed to find out the significance of each of the input parameters on the material removal rate, surface roughness. In presenting the experimental results of Material removal rate and surface roughness using Taguchi's dynamic design of experiments is proposed for end milling operations. Experimentation is planned as per Taguchi's L(3)9 orthogonal array. Assumptions of ANOVA are discussed and carefully examined using analysis of residuals. The final results revealed that the feed rate and depth of cut are main affecting parameter of MRR. Finally, experimental confirmation was carried out to identify the effectiveness of this proposed method. Minitab offer both mean analysis as well as S/N Ratio base DOF. Minitab 18 helps to make orthogonal array. Keywords-Taguchi design method; Material removal rate; Surface roughness; CNC End-Milling operations.