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20mm Carbide End Mill

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20mm Carbide End Mill

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Brand Name :	SUPAL
Payment Terms :	T/T
Supply Ability :	10000000PCS
Delivery Time :	7-15Days
Model Number :	OEM
Price :	To be negotiated

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20mm Carbide End Mill

What is an end mill?

It is defined as a shank type milling cutter that has a cutting edge on the outer surface and cross-section. An end mill is a tool that rotates and shaves the sides and top surface of a processed item with an outer blade and a bottom blade of a cross-section, respectively. End mills are especially used in precision processing of electrical, electronic and automotive parts and molds.

Selection of end mill

The performance of an end mill varies depending on the settings such as the number of blades, twist angle, inclination angle, relief angle and coating type, and a suitable shape is required for high-speed cutting operations.

The main part details of End mills

20mm Carbide End Mill

Product shape depending on the number of blades

Issues and solutions when using an end mill

Damaged blades	Fast transfer speed, excessive amount of slotting Excessive protrusion of tool Inadequate stiffness of tool poor fixation of item Poor fixation of item	Reduce transfer speed Reduce amount of slotting Reduce amount of protrusion Use minimum blade length Increase fixed stiffness Increase fixed stiffness
Vibration occurred during cutting	Excessive primary outer relief angle Excessive protrusion of tool Improper cutting conditions	Reduce primary outer relief angle Reduce the amount of protrusion Adjust cutting and transfer speeds
Reduced cutting performance	Use unsuitable end mill Low outer inclination angle Rapid wear of cutting blades	Use an end mill suitable for items to be cut Increase outer inclination angle Perform early regrind
Sudden occurrence of wear	Excessive cutting speed Unsuitable outer inclination angle Upward cutting operation	Reduce cutting speed, modify outer inclination angle Consider downward cutting operation
Poor chip discharge	Small space for chip discharge Excessive wear on blades Excessive amount of slotting Low injection pressure or amount of cutting oil	Reduce transfer speed and use an end mill with small number of blades Perform early regrind Reduce amount of slotting Increase injection pressure and amount
Poor surface roughness	Fast transfer speed Rapid wear of cutting blades Excessive amount of slotting Low cutting speed	Reduce transfer speed Perform early regrind Reduce amount of slotting Increase cutting speed
Damaged during cutting	Fast transfer speed Excessive protrusion of tool Significant damage of cutting blades Excessive amount of slotting	Reduce transfer speed Reduce amount of protrusion Perform early regrind Reduce amount of slotting
Poor processed dimensions	Small number of blades Excessive cutting conditions Use of long blades Poor accuracy of machine or chuck	Use an end mill with a greater number of blades Adjust cutting conditions, replace Use short blades, repair or replace machine or chuck

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