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一、概述某型号喷管,结构如图1所示.其表面有3mm厚之纯镍层,用数控车床进行加工.据有关资料介绍,纯镍是一种难加工材料.切削加工时,,刀具磨损极为迅速,刀具寿命极短、生产率亦低,工件表面质量不好.因此,在加工上述零件时,选择了耐磨性能较好的细颗粒、超细颗粒硬质合金刀片YG6X和YH1.结果发现刀具磨损仍然十分严重.虽然在刀具几何为上作了若干改变和选择,但无明显效果.切削时,因刀
First, an overview of a model nozzle, the structure shown in Figure 1. The surface of 3mm thick pure nickel layer, with CNC lathes for processing.According to the relevant information, pure nickel is a difficult to machine materials.Cutting, Therefore, when the above parts are machined, the fine grain and ultrafine grain cemented carbide inserts YG6X and YH1 with better wear resistance are selected for the purpose of extremely fast tool wear, extremely short tool life, low productivity and low surface quality. The results found that the tool wear is still very serious.Although the geometry of the tool made a number of changes and choices, but no significant effect.Cutting, due to knife