Using the SPH Method to Easier Predict Wear in Machining

Wear can be assumed to derive from the loading on the tool in combination with the surface to surface slip. It is known that a change of failure model and parameter together with friction values used in a simulation yields a change the shape of the chip. And the shape of the chip determines the loading on the tool. Moreover, the wear model that is used in the analysis will capture the the effect of the loading and the combination of the tool-work piece material. The tool-work piece contact is characterised by shear zone where no slip is present followed by an unloading sequence where slip is present with subsequent visible wear. loading patterns from the simulations were consistent with the observed wear and consequently the SPH method was determined as suitable for the task.