Comparative Experiments for Different End Mills of Indexable Inserts with 3-D Chip Breaker

End mills are very widely used in machining metal. In this paper, based on analysis of three different end milling indexable inserts with 3-D chip breaker, the influence of different chip breaker on cutting force, chip deformation and machined accuracy are studied by comparative experiments. The results show that the cutting effect of end mills with indexable inserts can be improved by optimization of 3-D chip breaker and suitable for different machining condition.