Depth of cut for single abrasive and cutting force in resin bonded diamond wire sawing

A new model of calculating depth of cut and cutting force was developed based on indentation fracture mechanics in order to understand the influences of processing parameters on cutting behavior of abrasives in resin bonded diamond wire sawing single crystal silicon. The random distribution characteristic of abrasives and the elasticity of resin layer were taken into account in this model, the correctness of which was verified by using the results from reference under the same processing parameters. Different processing parameter combinations were used to analyze the influences of processing parameters on the depth of cut and cutting force. The obtained results indicated that feed rate and wire speed had different effects on depth of cut and cutting force. The average depth of cut obtained under the condition of considering elasticity of resin layer was less than that got without considering this elasticity. The brittle cutting regime was the major way of material removal for resin bonded diamond wire sawing. The force ratio, total normal force to tangential force, was about 1.2. Finally, a mathematical relationship between cutting force and processing parameters was obtained.