Reason-A Technical Journal (Formerly Reason-A Technical Magazine)

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The paper reports the performance of ball nose end milling of preheated Inconel 600. The experiments designed using L8 orthogonal array were carried out on CNC milling machine using solid carbide ball end mill. The machining parameters (spindle speed, feed per tooth, depth of cut and number of flutes) were varied at two levels each and the surface roughness and material removal rate were measured. The analysis of results shows that the surface finish degrades at lower spindle speed. The chips welded on both sides of the slot retard chip flow, and cutting temperature will increase because the heat generated can not be dissipated with the chips leading to poor surface finish.

Keywords

Preheating, Ball End Milling, Taguchi, Surface Roughness, MRR, Inconel 600.
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