By U.S. Dixit, D.K. Sarma, J. Paulo Davim (auth.)

Environment-Friendly Machining offers an in-depth evaluate of environmentally-friendly machining strategies, overlaying a variety of varieties of machining to be able to determine which perform is the main environmentally sustainable. The booklet discusses 3 platforms at size: machining with minimum slicing fluid, air-cooled machining and dry machining. additionally lined is how to preserve strength in the course of machining techniques, in addition to worthy facts and designated descriptions for constructing and using the best glossy machining instruments. Researchers and engineers searching for sustainable machining options will locate Environment-Friendly Machining to be an invaluable volume.

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The value of surface roughness was found nearly equal in all the gases (Fig. 5). Among all the gases, CO2 provides slightly better surface roughness. Gas application in turning provided higher shear angle value compared to dry and wet turning at lower feeds. The higher shear angle implies the larger cutting ratio (ratio of uncut chip thickness to chip thickness). Thus, there is less chip thickening and cutting is more efficient. This invariably means the less cutting forces. 34 4 Gas-Cooled Machining Fig.

Copyright (2002) Elsevier pumped back by capillary pressure generated by the meniscus in the wick structure. Transport of heat can be continuous as long as there is enough heat input to the evaporator section such that sufficient capillary pressure is generated to drive the condensed liquid back to the evaporator. 3 shows schematically how this type of heat pipe can be embedded in a drill. Numerical studies and initial experiments showed that the use of a heat pipe inside the drill reduces the temperature field significantly.

Here, also it is observed that forces in air-cooled turning are lower, although the difference is less pronounced than in the case of cutting force (Fig. 9). 5 3 Cutting time (min) Fig. 7 Variation of surface roughness with cutting time in turning of grey cast iron with ceramic tool. With permission from Sarma and Dixit (2007). Copyright (2007) Elsevier indirect measurement of tool wear. It is also noted that percentage increase of force due to tool wear is more at low feed than at high feed. This observation is in line with the theoretical analysis of Smithy et al.

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