Abstract
Double helical gears sometimes counteract or nullify the forces to overcome axial thrust and are usually generated using a special generator. However, the phase difference of oncoming gears must be controlled with high accuracy and the machining of the gears is restricted due to tooth arrangement. In this paper, the double helical gears are manufactured using a multi-axis control and multi-tasking machine tool in order overcome these problems. This manufacturing method has some advantages as arbitrarily modification of tooth surface and machining of the part except tooth surface in addition to only one machine settings. The gears were manufactured by a swarf cutting using a coated carbide end mill and the tooth profile errors, tooth trace errors, and pitch errors of manufactured double helical gears were measured. As a result, the validity of this manufacturing method was confirmed.
