Numerical Investigation of the Changing Cutting Force Caused by the Effects of Process Machine Interaction While Broaching

During broaching, interactions between the process and the machine are inevitable and affect the process itself and the resulting work piece. To understand these effects profoundly, they have to be analyzed and investigated. One of these effects is the vibration of the cutting edge which results for example in a change in rake angle or cutting thickness during the cutting process. Therefore, the first part of this paper presents results o f investigations concerning a variable cutting thickness and the second includes investigations of the variable rake angle during broaching, in both cases the effects on the cutting forces by means of two-dimensional (2D) cutting simulations.