Patent ID: 7357603
Filing Date: 2008-04-15
Classification: B23B,B23C,Y10T

Abstract:
1. A toolholder comprising: a) a cutter body rotatable about a central axis; b) a peripheral wall on the cutter body; c) insert pockets located in the peripheral wall, wherein each pocket is spaced from an adjacent pocket by a lug and wherein each pocket has support surfaces including a bottom surface adapted for positioning a rectangular insert within a predefined rectangular envelope within the pocket; d) wherein each rectangular envelope has a front and back and four sides therebetween, including a top side, a bottom side and a radially inward side; e) wherein each lug has: f) wherein the support surfaces of the pocket are defined by the lug front face, the bottom surface, and a pocket wall positioned radially inwardly from the peripheral wall and connecting adjacent lugs; g) wherein the lug axial face is sloped downwardly across the entire lug width from the top of the lug to the lug rear face, thereby providing a chip clearance groove across the entire width of the lug; and h) wherein the lug front face extends over the back of the insert envelope.