Global Patent Index - EP 3230025 A1

EP 3230025 A1 2017-10-18 - METHOD FOR CUTTING WITH A FLUID JET

Title (en)

METHOD FOR CUTTING WITH A FLUID JET

Title (de)

VERFAHREN ZUM FLÜSSIGKEITSSTRAHLSCHNEIDEN

Title (fr)

MÉTHODE POUR LA DÉCOUPE AVEC UN JET DE FLUIDE

Publication

EP 3230025 A1 (DE)

Application

EP 15787555 A

Priority

  • DE 102014225247 A
  • EP 2015074887 W

Abstract (en)

[origin: WO2016091447A1] The invention relates to a method for liquid-jet cutting, comprising a compressor unit (3), which compresses a liquid for producing a liquid jet, and a nozzle (10), which is connected to the compressor unit (3) and which has an outlet opening (11), through which the compressed liquid exits in the form of a liquid jet (14). The one flow of the compressed liquid to the outlet opening (11) can be interrupted or enabled by means of an interrupting unit (8). The following steps are performed: compressing the liquid by means of the compressor unit (3), moving the outlet opening (11) toward a workpiece (15) to be processed until a processing distance (d) is reached, alternately enabling and interrupting the liquid jet (14) by means of the interrupting unit (8), wherein at the same time the nozzle is moved in relation to the workpiece in a processing direction (22) and the pulse duration (tp; tp1; tp2) of the liquid jet is less than 1000 µs.

IPC 8 full level (invention and additional information)

B26F 3/00 (2006.01); B24C 1/04 (2006.01); B24C 5/02 (2006.01)

CPC (invention and additional information)

B26F 3/004 (2013.01); B24C 1/045 (2013.01); B24C 5/02 (2013.01)

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

EPO simple patent family

DE 102014225247 A1 20160609; CN 107000238 A 20170801; EP 3230025 A1 20171018; US 2018015631 A1 20180118; WO 2016091447 A1 20160616

INPADOC legal status


2018-06-06 [INTG] ANNOUNCEMENT OF INTENTION TO GRANT

- Effective date: 20180509

2018-03-21 [DAV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (IN ANY COUNTRY) (DELETED)

2018-03-21 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2017-10-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20170710

2017-10-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): 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

2017-10-18 [AV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT IN:

- Countries: MA

2017-10-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: BA ME