Cutting tools have a decisive influence on the quality of machined parts and the efficiency of machining. Especially, the precision of cutting tools often leads to the precision of the gear class components.
There are two gear cutting methods; by forming and by generation. Because the gear cutting by forming has low machining accuracy and productivity, the gear cutting by generation is in common use. For gear generating, cutting tools such as a hob and a gear shaper cutter should be designed and manufactured precisely enough to increase the machining accuracy of gears.
The profile of a gear cutter is determined by the envelope equation of the instantaneous trajectory of the gear tooth profile. Therefore, the profile of the cutter can be determined only on the condition that the profile equation of the gear tooth to be machined is known. If the gear tooth profile is given as the measurement data or is a complex transcendental function, it is impossible to determine the profile of the cutter.
Choe Myong Chol, an institute head at the Faculty of Mechanical Science and Technology, has proposed a new method for 3D design of the toothed tool profile from the measurement data of a sample gear without any complex calculations in the way of reverse engineering.
This method can be applied to all generating cutters ranging from 2D to 3D tools.
For further details, please refer to his paper “3-D Design Method of the Gear Cutting Tool Profile Based on Reverse Engineering” in “Transactions of the Indian National Academy of Engineering” (SCI).
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