The Effect of Feed and Depth of Cut Parameters on Surface Roughness and Chip Morphology in X2CrNiMoN2253 Duplex Stainless Steel Materials

Abstract

Machining is one of the primary methods used to produce precision machine parts. Machining operations are influenced by many parameters. The most important of these parameters are feed and depth of cut. In addition, as a function of these parameters, many technical characteristics, particularly surface roughness, of the parts produced by machining change. For this reason, it is very important to monitor the machining parameters of the workpieces to be machined and to change them if necessary. Workpieces from many different groups of materials can be machined, but it is more important to monitor and control the machining parameters in stainless steels, which are classified as difficult-tomachine materials. In this study, the optimum machining conditions were investigated to obtain the lowest surface roughness values on stainless steel materials (X2CrNiMoN2253). The experiments were started with two different depths of cut (0.8 mm -1 mm) and three different feeds (0.1 mm/rev - 0.15 mm/rev and 0.2 mm/rev). It is understood that the feed is highly foremost on the surface roughness and changes the experimental results up to three times, however, the effect of cutting depth was limited. In the experiments, the best experimental results were obtained under 0.1 mm/rev feed. For a detailed analysis of the effect of the depths of cut values on the surface roughness, three additional depths of cut values (1.25 mm-1.5 mm-1.75 mm) were used under 0.1 mm/rev feed. In these additional experiments, it was observed that the effect of cutting depth was still limited, and the surface quality deteriorated with increasing cutting depth.

Keywords

• Surface roughness
• Turning
• Stainless steel
• Tool wear
• Machinability

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