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1. EP3680048 - ROTARY CUTTING TOOL

Office European Patent Office
Application Number 17924730
Application Date 07.09.2017
Publication Number 3680048
Publication Date 15.07.2020
Publication Kind A1
IPC
B23C 5/10
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
CMILLING
5Milling-cutters
02characterised by the shape of the cutter
10Shank-type cutters, i.e. with an integral shaft
B23B 27/14
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
27Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
14Cutting tools of which the bits or tips are of special material
B23B 27/20
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
27Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
14Cutting tools of which the bits or tips are of special material
20with diamond bits
B23C 3/12
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
CMILLING
3Milling particular work; Special milling operations; Machines therefor
12Trimming or finishing edges, e.g. deburring welded corners
B23C 5/16
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
CMILLING
5Milling-cutters
16characterised by physical features other than shape
CPC
B23B 27/14
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
27Tools for turning or boring machines
14Cutting tools of which the bits or tips ; or cutting inserts; are of special material
B23B 27/20
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
27Tools for turning or boring machines
14Cutting tools of which the bits or tips ; or cutting inserts; are of special material
18with cutting bits or tips ; or cutting inserts; rigidly mounted, e.g. by brazing
20with diamond bits ; or cutting inserts
B23C 3/12
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
CMILLING
3Milling particular work; Special milling operations; Machines therefor
12Trimming or finishing edges, e.g. deburring welded corners
B23C 5/10
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
CMILLING
5Milling-cutters
02characterised by the shape of the cutter
10Shank-type cutters, i.e. with an integral shaft
B23C 5/16
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
CMILLING
5Milling-cutters
16characterised by physical features other than shape
Applicants SUMITOMO ELECTRIC HARDMETAL CORP
Inventors TSUKIHARA NOZOMI
KOBAYASHI YUTAKA
YOSHIDA MINORU
Designated States
Title
(DE) ROTIERENDES SCHNEIDWERKZEUG
(EN) ROTARY CUTTING TOOL
(FR) OUTIL DE COUPE ROTATIF
Abstract
(EN)
A rotary cutting tool includes a main body and a shank. The main body has a tip end. The shank is continuous with the main body on the side opposite to the tip end. The main body is provided with a first cutting edge having a positive twist angle, and a second cutting edge having a negative twist angle and separated from the first cutting edge. Each of the first cutting edge and the second cutting edge extends continuously from the tip end to the shank.

(FR)
La présente invention concerne un outil de coupe rotatif présentant une partie corps et une partie tige. La partie corps présente une pointe. La partie tige prolonge la partie corps sur le côté opposé de la pointe. La partie corps comporte : une première lame de coupe ayant un angle de torsion positif ; et une seconde lame de coupe qui présente un angle de torsion négatif et qui est séparée de la première lame de coupe. Chacune de la première lame de coupe et de la seconde lame de coupe s'étend en continu de la pointe à la partie tige.