Global Patent Index - EP 3068579 A1

EP 3068579 A1 20160921 - HONING TOOL AND METHOD FOR MACHINING A PLURALITY OF COAXIAL BORES

Title (en)

HONING TOOL AND METHOD FOR MACHINING A PLURALITY OF COAXIAL BORES

Title (de)

HONWERKZEUG UND VERFAHREN ZUM BEARBEITEN MEHRERER KOAXIALER BOHRUNGEN

Title (fr)

OUTIL DE RODAGE ET PROCÉDÉ POUR USINER PLUSIEURS TROUS COAXIAUX

Publication

EP 3068579 A1 20160921 (DE)

Application

EP 14796507 A 20141112

Priority

  • DE 102013223293 A 20131115
  • EP 2014074347 W 20141112

Abstract (en)

[origin: WO2015071294A1] The present invention relates to a honing tool (31) for machining a plurality of separate bores (17a, 17b, 17c) arranged coaxially one behind the other, with different diameters. The honing tool (31) comprises a plurality of cutting bar groups (3, 4, 5) arranged coaxially one behind the other, wherein a cross-section of one cutting bar group (3, 4, 5), formed by radially extendable cutting bars (18), differs from the cross-section of at least one other cutting bar group (3, 4, 5). The cutting bar groups (3, 4, 5) are designed and arranged in such a way that, during one single pass, a through-bore (17a, 17c) can be machined by at least a first cutting bar group (3, 5) and a stepped bore (17b) can be machined by at least a second cutting bar group (4).

IPC 8 full level

B24B 33/08 (2006.01)

CPC (source: EP US)

B24B 5/06 (2013.01 - EP US); B24B 5/40 (2013.01 - EP US); B24B 33/08 (2013.01 - EP US); B24B 33/083 (2013.01 - EP US)

Citation (search report)

See references of WO 2015071294A1

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)

WO 2015071294 A1 20150521; CN 105792986 A 20160720; CN 105792986 B 20180710; DE 102013223293 A1 20150521; EP 3068579 A1 20160921; EP 3068579 B1 20170906; HU E035565 T2 20180528; MX 2016006196 A 20160913; US 10086491 B2 20181002; US 2016354893 A1 20161208

DOCDB simple family (application)

EP 2014074347 W 20141112; CN 201480061565 A 20141112; DE 102013223293 A 20131115; EP 14796507 A 20141112; HU E14796507 A 20141112; MX 2016006196 A 20141112; US 201415036691 A 20141112