Abstract:

Composites are the type of materials designed and produced according to their usage area. Therefore, composite materials can be produced in accordance with the usage area using the same production method. This situation affects the machinability properties of composites, owing to the fact that different production parameters cause different mechanical properties. For this reason, it is important that the determination and optimization of cutting forces during machining of composite materials. In this context, the optimization of cutting forces of bronze matrix (CuSn10) composites which are reinforced with cast iron (GGG-40) produced using 3 different production temperatures (350,400 and 450˚C) and pressure (480, 640 and 820 MPa) and 4 different reinforcement (wt. %10, wt. %20, wt. %30, wt. %40) during dry turning. Full factorial design based 36 experiments were performed and resultant force calculation was carried out with measurement of cutting forces in 3 axes. During experiments cutting conditions were kept constant (cutting speed=50 m/min, feed rate=0,128 mm/rev and depth of cut=1 mm). As a result of analysis of variance (ANOVA), it was found that the parameter which has the most effect on the cutting forces is the production pressure with 80% contribution rate.

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