I am trying to simulate a face milling operation in ansys explicit dynamics involving a 125 mm diameter cutter and a 1000 mm long job with a 5mm depth of cut. I have specified a path for the work piece during cutting under analysis settings and have set the end time to be 0.0053 seconds but the feed per insert ratio is same as that of an actual operation. But the application stops responding. I have tried mass scaling but it shows 'timestep too small' error. Can anyone check, please?