In the process of machining, even the advanced precision equipment will have burrs more or less. How to remove burrs efficiently has become a key issue in machining, and various methods emerge one after another, such as high-pressure water jet deburring: using water as the medium, using its instantaneous impact force to remove burrs and flash after machining, and at the same time achieving the purpose of cleaning. Features: Expensive equipment, mainly used in the hydraulic control system of automobile heart and construction machinery.

Main factors affecting burr formation:

(1) milling parameters, milling temperature, cutting environment, etc. Will have a certain impact on the formation of burrs. The theory of plane cutting angle and the theory of state equation of tool tip exit sequence reflect the main factors such as feed speed and milling depth.

② The better the plasticity of the workpiece material, the easier it is to form type I burr. In the process of end milling brittle materials, if the feed speed or plane cutting angle is large, it will be beneficial to the formation of type III burr (defect).

(3) When the angle between the end surface of the workpiece and the machining plane is greater than a right angle, the formation of burrs can be suppressed due to the enhanced supporting rigidity of the end surface.

(4) The use of milling fluid is beneficial to prolong the tool life, reduce the tool wear, lubricate the milling process, and further reduce the burr size.

⑤ Tool wear has a great influence on burr formation. When the tool is worn to a certain extent, the arc of the tool tip increases, which not only increases the burr size in the tool outlet direction, but also produces abnormal burrs in the tool cutting direction.