Analytical Model Approach for Tool Temperature Prediction in Broaching Nickel-Based Alloys

The following article suggest an analytical model approach for tool temperature prediction in broaching nickel-based alloys. The presented approach is based on an existing model proposed by Komanduri and Hou in 2001, however, includes several modifications in order to better describe the phenomena observed in thermo-graphic measurements acquired during broaching experiments. The novel model approach includes different assumptions regarding the location of heat sources in the cutting zone as well as adiabatic boundary conditions. Moreover, an advancement of the model was made to regard variable contact conditions between tool clearance face and work piece caused by tool wear.