Trouble shooting for end milling Solution Factors Insert Grade Selection Cutting Conditions Style and Design of the Tool Machine Installation of To

Trouble shooting for end milling Solution Factors Insert Grade Selection Cutting Conditions Style and Design of the Tool Machine Installation of To

Trouble shooting for end milling Solution Factors Insert Grade Selection Cutting Conditions Style and Design of the Tool Machine Installation of Tool Coated tool Cutting speed Feed Depth of cut Down Down cut Use air blow Coolant Helix angle Insert number Concavity angle of end cutting edge Tool diameter Cutter rigidity Wider chip pocket Shorten tool overhang Increase tool installation accuracy Increase spindle collet run-out accuracy Collet inspection and exchange Increase chuck clamping power Increase work clamping rigidity Increase coolant quantity Do not use water-soluble cutting fluid Determine dry or wet cutting Up Down Up Larger Down Smaller Non-coated end mill is used Large peripheral cutting edge wear A small number of cutting edges i Improper cutting conditions i o 2 Up cut milling is used Down Cut Improper cutting conditions o c o s Severe Fragile cutting edge chipping Insufficient clamping force a o k. ii Low clamping rigidity Improper cutting conditions Breakage Low end mill rigidity i during cutting Overhang longer than necessary Chip jamming Improper cutting conditions Vibration during cutting Low end mill rigidity i C w c iZ Low clamping rigidity Large cutting edge wear u a n Poor surface finish on walls Improper cutting conditions t 3 o Chip packing. Wet Poor surface The end cutting edge does not have a concave angle i c o +- 2 o L v finish on faces Large pick feed Large cutting edge wear Out of vertical Improper cutting conditions a) Q Lack of end mill rigidty i Poor dimensional Improper cutting conditions accuracy Low clamping rigidity ci OJ Burr or chipping occurs Improper cutting conditions c 'a a. o Large helix angle Quick bur Notch wear L 3 formation Improper cutting conditions i Poor Chip Dispersal Chip packing Metal removal too large Lack of chip pocket Q018 TECHNICAL DATA TECHNICAL DATA Trouble