Calculation of Optimum Exchanged Grinding Wheel Diameter When External Grinding Tool Steel 9CrSi

Abstract

This paper presents a study on the optimum calculation of exchanged grinding wheel diameter when external grinding alloy tool steel 9CrSi. In this study, the effects of the grinding process parameters including the initial grinding wheel diameter, the total dressing depth, the radial grinding wheel wear per dress, and  the wheel life on the exchanged grinding wheel diameter were considered. Furthermore, the impact of cost elements including the machine tool hourly rate and the grinding wheel cost were investigated. To evaluate the effect of these factors on the optimum exchanged grinding wheel diameter, an "experiment" was designed, and a computer program was built for performing the "experiment". Based on the results of the "experiment", a formula for determining the optimum exchanged grinding wheel diameter was proposed.

A Study on Calculation of Optimum Exchanged Grinding Wheel Diameter when Surface Grinding Stainless Steel

“…Thus, the cost function can be expressed as: Since, the optimum exchanged grinding wheel diameter depends on much grinding parameters such as grinding machines, grinding process parameters, dressing parameters and coolant parameters etc., it can be presented as a function of these parameters. However, this study cannot cover all the grinding parameters, six grinding parameters including the initial grinding wheel diameter D0, the total depth of dressing cut aed, the wheel life Tw, the radial grinding wheel wear per dress Wpd, the machine tool hourly rate Cmh, and grinding wheel cost Cgw are selected based in previous studies [27][28][29][30][31]. Therefore, the optimum exchanged grinding wheel diameter can be presented as:…”

“…In these studies, optimization methods such as genetic algorithm, Taguchi, numeration methods have been used to after analyzing the influence of grinding process parameters based in the experiment results. Some recent studies have introduced an approach in which the effect of grinding parameters on grinding cost is related to the optimum exchanged grinding wheel diameter [27][28][29][30][31]. This approach uses mathematical formulae to find out the influence of the grinding cost, the optimum exchanged grinding wheel diameter and the grinding parameters on one another by simulating grinding experiments.…”

Studying the Influence of Dressing Parameters on the Surface Roughness when Conducting the External Grinding of SKD11 Steel

“…Grinding is an important process in series of machining operations such as turning, milling, drilling. This process can be used in both rough and finish machining [1][2][3][4][5][6][7][8][9][10][11]. A critical stage that prepares for the grinding wheel after each grinding operation is dressing or sharpening abrasive grains.…”

Determining the Optimum Set of Dressing Parameters Satisfying Minimum Surface Roughness when Conducting the Internal Grinding of Hardened SKD11 Steel

“…It is estimated that 25% of the total expenditures on machining operations are used in industry [1][2][3][4][5][6][7][8]. There have been researches that conduct the optimization process to find the optimum dressing parameters for external grinding, internal grinding, and surface grinding [9][10][11][12][13][14][15]. The results documented by the literature show that the dressing process has a huge influence on the profile, topography, and wear behavior of the grinding wheel [16][17][18][19][20].…”