There are two common gear processing methods, profiling processing and generating processing. Generating processing is also called generating processing.

1. Profiling processing. In gear processing, the cutter cuts out the gear slot, and the section profile of the cutter is the profile of the gear slot. When machining the gear, the gear does not mesh, and the accuracy of the gear is relatively low when it is machined, usually the accuracy does not reach level 11.

2. Forming processing. The cutter for machining gears is itself a gear or a rack. The gear hob can also be regarded as a rack and belongs to the rack type cutter.

When machining gears, there is meshing movement between the gear cutter and the gear being machined. The tooth profile blade of the gear cutter, whose movement envelope the tooth surface of the gear to be machined, is the desired involute. The machining accuracy is relatively high. Generally, hobbing, gear shaping, and gear shaving can be seen. These are precision machining.

1. The profiling method for gear processing mainly includes milling and broaching:

(1) Precision gear casting: it can process some low price small gears in batches;

(2) Die casting machine teeth: basically, non-ferrous gears are processed;

(3) Milling machine: can process straight rack;

(4) Gear grinding machine: it can process the gears on the precision machine;

(5) Toothing of cold beating machine: it can be processed without chips;

2. The generating method of gear processing mainly includes gear hobbing and gear shaping:

(1) Gear hobbing machine: it can be used to process helical gears with a modulus below 8;

(1) Gear slotting machine: capable of machining internal teeth;

(2) Gear shaving machine: It is a kind of metal cutting for gear finishing.

(3) Gear shaper: can process 16 module big gear

The difference between the two processing methods is:

1. The machining precision of profiling method is not as high as that of generating method, and the machining precision of generating method can reach level 3;

2. The production efficiency of profiling method will be higher than that of generating method;

3. The generating method requires gear grinding equipment to process, and the production cost will be higher than the profiling method.