Cutting insert and method of machining rotated workpieces

Details Cutting insert and method of machining rotated workpieces Cutting insert and method of machining rotated workpieces

B - Operations, Transporting

23

B

B23B 5/18 (2006.01) B23B 27/14 (2006.01) B23C 3/06 (2006.01) B23D 37/00 (2006.01)

Patent

CA 2647746

The invention relates to a cutting insert with a prismatic base form, with an upper and a lower surface (11), arranged parallel to each other and connected by four lateral surfaces perpendicular thereto, of which two opposing lateral surfaces (14) have projecting and recessed sections, which, together with the upper and lower surfaces form corrugated cutting edges and of which the two remaining opposing lateral surfaces (13) are arranged planar and parallel to each other. According to the invention, at least one cutting corner (18) formed by two adjacent lateral surfaces (13, 14) has an embodiment as a cutting edge. The invention further relates to a method with application of the disclosed cutting insert which firstly, for facing a central bearing, is radially displaced on a rotated workpiece and then, for finishing a bearing surface, is axially displaced.

Insert de coupe qui possède une forme de base prismatique pourvue de surfaces supérieure et inférieure (11) parallèles l'une à l'autre et reliées l'une à l'autre par l'intermédiaire de quatre surfaces latérales perpendiculaires aux surfaces supérieure et inférieure. Deux surfaces latérales opposées (14) présentent des segments saillants et en retrait qui forment avec les surfaces supérieure et inférieure des arêtes de coupe dentées, et les deux autres surfaces latérales opposées (13) sont planes et parallèles l'une à l'autre. Selon la présente invention, au moins un coin de coupe (18) formé par deux surfaces latérales adjacentes (13, 14) est conçu sous forme d'arête de coupe. La présente invention concerne en outre un procédé reposant sur l'utilisation dudit insert de coupe qui est déplacé d'abord radialement sur une pièce entraînée en rotation pour le surfaçage d'un palier central et ensuite axialement pour la finition d'une base de palier.

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