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1. (WO1997016277) METHOD AND CUTTING INSERT FOR THREADING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/016277 International Application No.: PCT/SE1996/001125
Publication Date: 09.05.1997 International Filing Date: 10.09.1996
Chapter 2 Demand Filed: 20.05.1997
IPC:
B23B 27/06 (2006.01) ,B23B 27/14 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B
TURNING; BORING
27
Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
06
Profile cutting tools, i.e. forming-tools
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B
TURNING; BORING
27
Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
14
Cutting tools of which the bits or tips are of special material
Applicants:
SECO TOOLS AB [SE/SE]; S-773 82 Fagersta, SE (AllExceptUS)
NIEMI, Matti [SE/SE]; SE (UsOnly)
Inventors:
NIEMI, Matti; SE
Agent:
CARLSSON, Lars-Åke; Sandvik AB Patent Dept. S-811 81 Sandviken, SE
Priority Data:
9503824-631.10.1995SE
Title (EN) METHOD AND CUTTING INSERT FOR THREADING
(FR) PROCEDE ET PLAQUETTE DE COUPE POUR FILETAGE
Abstract:
(EN) The present invention relates to a method and a cutting insert for threading. The method aims to produce a thread in a rotary work piece. The threading insert has a polygonal basic shape including at least one cutting corner. The cutting corner has two cutting tips (18a, 18b) with different projections (L1, L3), which cutting tips each comprises a cutting edge (30), which is provided to form a thread top substantially between the cutting tips (18a, 18b). The total, projected length of the cutting edge (30) is smaller than two thread pitches.
(FR) Procédé et plaquette de coupe destinés à produire un filetage sur une pièce en rotation. La plaquette de coupe possède une forme de base polygonale comportant au moins un angle de coupe. L'angle de coupe possède deux extrémités (18a, 18b) de coupe avec des parties saillantes différentes (L1, L3), lesdites extrémités de coupe comportant chacune une arête (30) de coupe qui est destinée à former une pointe de filet entre les extrémités (18a, 18b) de coupe. La longueur totale projetée de l'arête (30) de coupe est inférieure à deux pas de filetage.
Designated States: CN, IL, JP, KR, US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
IL124036EP0858378US6138540US6341923JPH11514939 CN1200059
DE000069620212KR1019990067178