Finding dimensional stability considering deflection effects in cylindrical plunge grinding

摘要: In spite of the existence several models to effectively design grinding cycles, they are not frequently adopted in production lines, due lack knowledge, difficulties determining some input parameters and discrepancies observed obtained results during a batch parts. This paper proposes contribution modeling simulation cylindrical plunge cycles terms dimensional stability process, prediction workpiece diameter along cycle minimum required spark-out time, incorporating into model tolerance limits according chosen capability scenario. The part time operation is key parameter optimized cycles. proposed covers typical fast industry, which spark-in long enough guarantee that at its end, real radius reduction speed very close programmed feed rate. model, remaining radial stock be removed stage designed equal or lower than limit for operation, but considering different scenarios index: barely capable process (Cp= 1); (Cp= 1.3); six-sigma quality level (Cp= 2.0). necessary reduce total specified calculated by simulation. Experimental tests were performed was measured using an in-process gauge, varying in-feed velocity time. As result, reasonable compromise between theoretical experimental data achieved. dependency “time constant” demonstrated It also longer times will needed achieve tighter indexes given value.