New Technology for Environmentally Friendly Machining in Gray Cast Iron using Uncoated Carbide Tool
Keywords:
Coolant, Cast Iron, Green MachiningAbstract
The main activity of the metal cutting industry is machining various kinds of metal materials to make various products such as bolts, couplings, gears, shafts, bearings, turning metal casting objects and other engine components for sale in the local market as well as for export needs. Cutting fluid (coolant) is often used for metal machining to obtain a long tool life and low machined surface roughness, but the use of such coolant has a negative impact on machine operators and environment. The negative impact on operators is cause lung disease and temporary skin disease while for the environment, it will cause environmental pollution because coolant from synthetic materials cannot be decomposed in nature. Due to this reason, scientists are trying to eliminate the use of coolant on metal machining. In this study, a dry machining test is performed on cast iron with 8 (eight) varying cutting conditions (23factorialmethod), as follows V1, V2, f1, f2, a1, a2. In this test, some information can be collected such as toolwear (VB), machining time (t), surface roughness (Ra), machining length (L), machining volume (Q) and material removal rate (MRR). The test data are then analyzed to obtain optimum cutting conditions for the 8 (eight) cutting conditions to be applied to environmental friendly machining (green machining).
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