Measurement of cutting force and cutting temperature on gear cutting in fly tool for clarification of dry hobbing phenomenon

Hobbing is the most frequently used method for gear production. A simple fly cutting experiment was conducted by simulating hobbing on a milling machine to examine the relation between cutting mechanism and tool life. However, this method differs in some respects from actual hobbing. A new method of tool wear testing similar to hobbing was proposed. This new method was also useful for measurement of cutting forces and cutting temperature. Experiments were performed with TiN-coated and non-coated tools. The results showed that cutting forces and cutting temperature were smaller for the TiN-coated tool than the non-coated tool. In addition, the TiN-coated tool showed less adhesion of chips than the non-coated too