Search

Clean machining is gaining ground as one of the crucial issues in future manufacturing. Many machining industries are looking for alternative solutions to wet machining because of the costs of the latter, including environmental costs, as well as its impact on occupational health and safety. Dry machining is being proposed, but in most conditions, the cutting tool wears out quicker, leading to part quality deterioration and increased machining costs. Minimum quantity lubrication (MQL) machining is also proposed to maintain a reasonable tool life and limited cost, as compared to the situation with flood or wet machining. Both the MQL and dry machining methods, however, are susceptible to the generation of aerosols containing metallic particles that can be detrimental to occupational health and safety. Minimizing particle emissions is of prime importance since these can have serious consequences on the operator's health. They have been seen to be at a minimum at two specific cutting ranges. In this study, investigations are done to examine the effect of lubrication (dry and MQL) during the turning of the 7075-T6 aluminum alloy. The performance indexes studied are the surface roughness, the chip thickness, and aerosol generation. [ABSTRACT FROM AUTHOR]

In the present study, an attempt has been carried out to investigate the effect of cutting fluid applications including dry, mist and flood drilling on the part quality during drilling of 6061-T6 aluminum alloy. The part quality criteria include the surface finish and burr size. A multi-factorial experimental design (DOE) and analysis was used. It has also been found that dry machining and mist machining can produce parts with quality comparable to those obtained in wet machining when using the optimal cutting conditions. [ABSTRACT FROM AUTHOR]