US 12,011,766 B2
Cutting part and lathe
Benedikt Beermann, Paderborn (DE); and Daniel Schanz, Neuweiler (DE)
Assigned to PHOENIX CONTACT GMBH & CO. KG, Blomberg (DE)
Appl. No. 17/299,818
Filed by Phoenix Contact GmbH & Co. KG, Blomberg (DE)
PCT Filed Nov. 27, 2019, PCT No. PCT/EP2019/082670
§ 371(c)(1), (2) Date Jun. 4, 2021,
PCT Pub. No. WO2020/120132, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 2018/5880 (BE), filed on Dec. 12, 2018.
Prior Publication US 2022/0016714 A1, Jan. 20, 2022
Int. Cl. B23B 27/04 (2006.01); B23B 27/00 (2006.01); B23B 27/22 (2006.01)
CPC B23B 27/005 (2013.01) [B23B 27/045 (2013.01); B23B 27/22 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A cutting part for a tool head for a lathe for machining a workpiece, comprising:
a cutting edge for removing material from the workpiece and with a face for guiding away the removed cuttings, and
a flat structure adjoining the cutting edge for breaking the cuttings in the face of the cutting part, wherein the flat structure has a constant height over its entire surface,
wherein the flat structure has a herringbone pattern,
wherein the herringbone pattern of the flat structure has a middle stem perpendicular to the longitudinal axis of the cutting edge and burrs that originate from each side of the middle stem, and wherein the individual burrs are inclined toward the cutting edge and are arranged at an angle (α) of less than 90° or 90° relative to the middle stem, and
wherein, in a direction from an end of the burrs that faces the middle stem to an end of the burrs that faces away from the middle stem, the burrs first have a cross-sectional widening and then a cross-sectional constriction.