Abstract:

For calculation of diametric adjustments and temperature fields of broach cutting teeth, the paper formulates the boundary conditions at cutting with simultaneously working teeth, by taking into account the restored elastic deformations for the next tooth and transient surface hardening after plastic deformation. For each broach tooth, there have been obtained the formulas for calculation of the pressure value in radial directions taking into consideration the cutting process pre-history for each tooth of a broach.

Keywords: broach; diametric adjustment; temperature field; cutting force; hardening.