As a mechanical accessory with a wide range of uses, there are corresponding processing principles when making it, and bevel gears are naturally no exception.So, what is the principle of bevel gear processing?Bevel gear machining is divided into rough machining and finishing.Rough machining is based on the rapid removal of the blank margin as the goal, requiring the removal of as many chips as possible in a short time, and it does not have high requirements for the surface quality of the product.However, finishing mainly considers the surface quality of the workpiece rather than the amount of chips. In finishing, a small cutting depth is generally used. The secondary cutting edge of the tool usually has a specific shape, such as a wiper edge.In the finishing process, the surface quality of the workpiece is required to be higher.Commonly used milling methods for bevel gear processing include down milling and up milling.During down milling, the component of the cutting speed direction of the cutting point in the feed direction is the same as the feed speed direction. Down milling is a processing method often used to obtain good surface quality.It has the advantages of small flank wear, smooth machine operation, etc., and is suitable for processing high-alloy steel under good cutting conditions.In up-milling, the component of the cutting speed direction of the cutting point in the feed direction is opposite to the direction of the feed speed.In view of the use of this method will produce some side effects, such as accelerated flank wear, thereby reducing the durability of the blade, surface hardening when processing high-alloy steel, unsatisfactory surface quality, etc., so the frequency of use in processing is very low.Like other accessories, the principle of bevel gear processing also has certain rules to be found.