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Identification of effective zones for high pressure coolant in milling

机译：确定铣削中高压冷却液的有效区域

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摘要

Effective zones of high pressure coolant have been identified in milling performing a wide range of machining operations on ASSAB 718 mould steel using un-coated tungsten carbide inserts. The effects of high pressure coolant are evaluated in terms of machining parameters by comparing with those of conventional coolant and dry cut. Chipping and catastrophic failure are the dominant factors of insert rejection for dry cut and conventional coolant, whereas progressive flank wear is observed for high pressure coolant within its effective zones at lower depth of cut, lower feed rate and higher cutting speed. It is found that the cuffing force is reduced, surface finish is improved, chip width is narrowed and cooling effect is better with the use of high pressure coolant.
机译：在铣削中，使用未涂层的碳化钨刀片对ASSAB 718模具钢进行了广泛的加工操作，已确定了高压冷却剂的有效区域。通过与常规冷却液和干切削的比较，根据加工参数评估高压冷却液的效果。切屑和灾难性故障是干切削和常规冷却液无法插入刀片的主要因素，而在切削深度较低，进给速度较低和切削速度较高的情况下，在有效区域内的高压冷却液却观察到了渐进的齿腹磨损。结果发现，使用高压冷却剂可以降低套边力，改善表面光洁度，缩小切屑宽度，并且冷却效果更好。

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