HIGH-PERFORMANCE NEAR-DRY MACHINING AND ITS TRIBOLOGICAL BEHAVIOR

针对能够大幅度减少切削液用量的环境友好型高性能准干式切削，对其摩擦学行为进行了详细研究。结果发现，在需要流体的高润滑效果的铝合金的加工中，包括氧的化合物如酯、醇和酸中的一些具有优异的切削性能，并且共存的水可以改善性能。此外，在作为难切削材料之一的不锈钢的近干式加工中，酯和水基冷却剂的混合雾供给被证明在提供更高的切削性能方面是有效的。

Regarding high-performance near-dry machining which can considerably decrease the amount of cutting fluids and is therefore environmentally friendly, its tribological behavior was investigated in detail. As a result, in machining of aluminum alloys necessitating the high lubricating effects of fluids, it was found that some of such chemical compounds including oxygen as esters, alcohols and acids had the excellent cutting performance and that coexisting water could improve the performance. Further, in near-dry machining of a stainless steel which is one of difficult-to-cut materials, hybrid mist supply of an ester and a water-based coolant demonstrated to be effective in providing the higher cutting performance.