Improvement in Machining Process Performance with the Application of Solid Lubricants

Abstract

The traditional machining methods introduce high-volume and high-pressure machining fluid systems to provide cooling and lubrication between the tool and the work piece. However the abundant application of cutting fluids may increase the total manufacturing cost and adversely affects the health of person and also creates environmental problems. If sustainable and environment friendly manufacturing aspects are envisaged, any attempt to improve the machinability is always welcome. In this aspect, industry is required to comply with regulations that control the use and disposal of lubrication materials that are potentially hazardous, or place unacceptable burdens on natural resources and the environment. In this context, there is a clear need to explore the potential for using solid lubricants within machining in order to establish a stable and reliable machining process. The current research work is focused to apply solid lubricant mixed with oil at minimum quantity and also to assess it’s the effects, during turning of EN 31. Experiments have been carried out to study the effect of solid lubricant on output like surface roughness, chip-tool interface temperature, cutting force and power consumption. Results indicate that the effectiveness of solid lubricant is substantial and therefore it may be considered to be a cost-effective and environmentally friendly lubrication technique than flood cooling.