Quality Problems and Analysis of Heavy Cutting of Large Module Multi head Worms in Dongguan CNC Precision Machining Factory

The main reason for the phenomenon of tool binding during turning at Dongguan CNC Precision Machining Factory is that the workpiece is not firmly clamped and moves, resulting in a sharp increase in cutting volume. In addition, the poor elasticity of the turning tool shank, too large selection of cutting parameters, too large longitudinal rake angle of worm turning tool, improper selection of cutting fluid, or work hardening due to blunt cutting edge of turning tool, which affects cutting, may also cause tool binding.

Once a knife puncture occurs, it can cause damage to the turning tool or scrapped workpiece, and in severe cases, it can cause damage to the machine tool. Therefore, efforts should be made to prevent it.

Incorrect tooth shape is mainly due to the grinding and installation of turning tools. For example, the sharp corners of the cutting tool have not been corrected; Unequal height between the turning tool tip and the workpiece center; The bisector of the blade tip is not perpendicular to the axis of the workpiece; Failure to install the tool correctly according to the worm form during precision turning, etc. In addition, the wear of the turning tool can also affect the correctness of the tooth shape.

Poor surface quality and insufficient rigidity of the tool bar result in vibration; Dull or damaged turning tools; Poor rigidity of the workpiece and improper selection of cutting parameters; Excessive borrowing during rough machining and inability to repair; Insufficient margin in the finishing stage; Improper selection of cutting fluid; The appearance of chip buildup or chip roughening on the side of worm teeth during turning at Dongguan CNC Precision Machining Plant will result in a decrease in surface quality.