In this study a new method of gear cutting is proposed. This method is characterised by working out a variable module and a variable number of teeth gear cutting using a one tool. The commonly used gear cutting is hobbing, shown in FIGURE 1, or gear shaping, and these gear cutting provide the mass production not for small-lot production. If someone needs only one gear, the gear is produced by the milling with formed tool which shape of cutting edge is the involute curve[1]. So the cost of the formed tool is not cheap, and it is not eazy to get. When some special gears or several types of gears are needed for a trial product in some company or labolatory, it is very difficult to prepare the cutter quickly in reasonable cost. One solution against this issue is use of the five axis controlled machining center. The path for a gear is generated by some special CAM. Maybe this is the easiest way to make one gear. The cutter is used the commercially produced endmill. However in some workshop or laboratory there has no such high performance cutting machine. For these situation the gear cutting method used by the simple milling machine or three axis controlled machining center is required.
展开▼
