Impact Evaluation of Some Parameters Affecting Surface Qualities by Taguchi Experimental Design Method: An Experimental Study On Heat Treated Low Carbon Wheel Rim
Journal Title: International Journal of Engineering and Science Invention - Year 2018, Vol 7, Issue 10
Abstract
The stage where the most decisive work can be done in improving the product quality is the parameter design phase for both product and process design. In order to determine the most effective parameters and to evaluate the results more efficiently, the Taguchi experiment design technique is preferred to realize the experiments in a shorter time. This study was carried out to investigate the effect of HSLA (High Strength Low Alloy) steels, which are increasingly important in the automotive industry, as the locomotive of the economy, to the surface quality in turning operation depending on hardness, feed rate and cutting tool parameters. Experimental design in the Minitab statistical analysis program, Taguchi experiment design technique and 9 trials according to L9 orthogonal design. Variance analysis and signal / noise ratio were used in the evaluation of the test results. It was possible to achieve the intended results with only one third of the number of experiments required in full factorial design (9 experiments instead of 27). In the experiments, the cutting tool type (CBN, Ceramic and Carbide cutter), the feed rate (0,02, 0,04 and 0,06 mm/cycle) and the material hardness (Material with two different hardness values obtained by annealing at 745 and 790 degrees without heat treatment and obtained after heat treatment) were used as the independent variable (factor). The mean surface roughness value (Ra) as a dependent variable was determined from measurements taken at 6 different points in three trials. As a result, the most effective parameters on the surface quality are the feed rate, the material hardness (microstructure) and the cutting tool. The results obtained are interpreted together with the evaluations which have been entered into the literature before.
Authors and Affiliations
Ayhan Aytaç, Muhammed Ilivan
Keywords
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