TORSIONALLY-STIFF END MILL

摘要

The invention relates to tools for the milling of materials The end mill of outer diameter D configured for improved rigidity comprising a body portion ( 10) to be gripped by a machine tool and a cutting portion having a plurality of flutes (30) machined to form cutting teeth (32) adjacent to said flutes the rear of each tooth comprising a short peripheral relief section (34) starting at the cutting edge and an accurate extended length tooth backing portion (38) adjoining the peripheral relief section and ending in a corner (40)