EP 3906130 A1 20211110 - INTERNAL HELICAL BROACHING TOOL
Title (en)
INTERNAL HELICAL BROACHING TOOL
Title (de)
INNEN-DRALLRÄUMWERKZEUG
Title (fr)
OUTIL DE BROCHAGE HÉLICOÏDAL INTÉRIEUR
Publication
Application
Priority
- DE 102019200022 A 20190103
- EP 2019086683 W 20191220
Abstract (en)
[origin: WO2020141110A1] The invention relates to an internal helical broaching tool (1), which has a pre-broaching tool portion (4) extending in one broaching direction (2) and a subsequent calibration tool portion (5). The latter, as a whole, is made of hard metal with a density of greater than 10 g/cm3. The invention provides an internal helical broaching tool with increased service life at a defined machining performance.
IPC 8 full level
B23D 43/00 (2006.01); B23D 43/02 (2006.01); B23F 21/26 (2006.01)
CPC (source: EP US)
B23D 43/005 (2013.01 - EP US); B23D 43/02 (2013.01 - EP)
Citation (search report)
See references of WO 2020141110A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102019200022 A1 20200709; CN 113260477 A 20210813; EP 3906130 A1 20211110; JP 2022516276 A 20220225; US 2022080518 A1 20220317; WO 2020141110 A1 20200709
DOCDB simple family (application)
DE 102019200022 A 20190103; CN 201980087478 A 20191220; EP 19832947 A 20191220; EP 2019086683 W 20191220; JP 2021538663 A 20191220; US 201917420342 A 20191220