Thread milling cutter usage problems and countermeasures

Question		Solution
Internal thread is too large or too small	The interpolation radius for thread milling in the CNC program is incorrect. The path for thread milling is incorrect.	Enter the correct milling radius and adjust until the thread size is acceptable
The thread is not round	Feed rate too high	Reduce feed rate
The thread is not round	Using simultaneous milling	Change milling direction
The thread surface does not meet the requirements and has burrs	Cutting speed too high	Adjust cutting speed
	The tool or workpiece is not clamped securely	Check the reliability of tool or workpiece clamping
broken knife	CNC program error	Check CNC program
broken knife	Cutting feed too high	Adjust cutting feed
Insufficient tool life	Cutting feed too high	Adjust cutting feed
	Tools are not coated	Use coated tools
	Poor lubrication and poor chip removal	Improve lubrication performance by adopting axial internal cooling method

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