By U.S. Dixit, D.K. Sarma, J. Paulo Davim (auth.)
Environment-Friendly Machining offers an in-depth assessment of environmentally-friendly machining techniques, overlaying a number of varieties of machining as a way to establish which perform is the main environmentally sustainable. The publication discusses 3 structures at size: machining with minimum slicing fluid, air-cooled machining and dry machining. additionally coated is the way to preserve power in the course of machining procedures, besides beneficial facts and specific descriptions for constructing and using the best sleek machining instruments. Researchers and engineers searching for sustainable machining strategies will locate Environment-Friendly Machining to be an invaluable volume.
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Sample text
Further, there is very slight reduction in surface roughness in air-cooled cutting in comparison to dry turning up to a speed of 400 m/min. However, at a cutting speed of 480 m/min, where the dry turning provides a very poor surface finish due to rapid tool wear, the air cooling provided a very good surface finish. In all the cases, air-cooled turning lowered the cutting and feed forces as compared to corresponding forces in dry turning. Thus, air-cooled turning seems to be a good environmentally friendly option for high speed turning.
Wear 253:957–962 Chapter 4 Gas-Cooled Machining Abstract It is possible to use coolant and/or lubricant in gas form instead of solid or liquid form. Cooling action in gas-cooled machining is mainly through convection. The heat transfer by the gas jet can be controlled by controlling the jet velocity. Gases also provide inert atmosphere and lubrication. There is no coolant disposal problem in gas-cooled machining as the gases get merged into the atmosphere. These gases are already present in the atmosphere and are harmless.
Sharma et al. (2009) have presented a good overview of major advances in cooling techniques in machining for improvement of productivity where compressed air cooling is one of the major applications. Beside compressed air, sometimes other gases such as nitrogen gas or liquid nitrogen were delivered under pressure and directed into the tool–chip interface. C ¸ akir et al. (2004) applied several gases (nitrogen, oxygen, and carbon dioxide) in turning of AISI1040 steel with carbide tool, which produced lower cutting force compared to dry and wet cutting.
