However, machine operators and manufacturing engineers generally examine cutting tools first. Vibration in cavity milling creates uneven wear on cutting tools and shortens tool life. While indexable insert milling cutters and solid carbide endmills differ in construction, they are both vulnerable to chatter and share some common vibration remedies. Indexable insert milling cutters are generally available in diameters down to one-half inch. They use replaceable inserts with a choice of geometries and coatings.
Smaller openings call for solid carbide endmills with two, three or four cutting edges.
But there are steps users can take to end vibration with both milling cutters and endmills. Milling cutter chatter Use cutters with fewer inserts. Although it may seem counter-intuitive, the first step to reducing chatter in milling operations is to switch to a cutter with fewer teeth. In general, the coarser the cutter pitch, the lesser the chance of harmonic vibration. The larger the cutter, the better.