Cutting plate geometry for the cutting force reduction in the case of the recess-turning and pulling cut

摘要

The invention relates to a cutting plate (1) for installation in support tools for machining of workpieces with an upper side (2) and an underside (3) and with the upper side (2) and the underside (3) which connects the side surfaces (4), wherein at the transition from the upper side (2) to the side surfaces (4) a circumferential bevel (5) with a to the upper side (2) of the cutting plate (1) adjacent upper edge (6) and a on the side surfaces (4) adjacent lower edge (7) is arranged, wherein the upper edge (6) cutting edges (9) and cutting corners (10) is formed, and the lower edge (7) in the region of the cutting edges (9) into a cutting edges - free angle surface (8) with a edges free angle of 3° to 11°, which merges.In order that during the pulling cut the edge stability is improved, it is proposed that in the region of the cutting corners (10) the lower edge (7) of the protective bevel (5) into a corners - free angle surface (11) with a edges free angle of 3° to 5°, which merges.