Global Patent Index - EP 3993927 A1

EP 3993927 A1 20220511 - METHOD AND DEVICE FOR INDUCTION HARDENING

Title (en)

METHOD AND DEVICE FOR INDUCTION HARDENING

Title (de)

VERFAHREN UND VORRICHTUNG ZUM INDUKTIVEN HÄRTEN

Title (fr)

PROCÉDÉ ET DISPOSITIF DE DURCISSEMENT PAR INDUCTION

Publication

EP 3993927 A1 20220511 (DE)

Application

EP 20753356 A 20200807

Priority

  • DE 102019121591 A 20190809
  • DE 102019127231 A 20191010
  • EP 2020072259 W 20200807

Abstract (en)

[origin: WO2021028343A1] The invention relates to a method for the induction hardening of a workpiece, in particular a toothed and/or corrugated and/or ribbed workpiece such as a gear or saw blade, wherein a matchingly shaped induction loop is guided or set over the workpiece surface to be hardened, the induction loop being formed layer-by-layer by the additive application of material, and the induction loop being shaped to match the surface to be hardened.

IPC 8 full level

B22F 3/105 (2006.01); B22F 3/24 (2006.01); B22F 5/00 (2006.01); B22F 5/08 (2006.01); B22F 5/10 (2006.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01); C21D 1/10 (2006.01); C21D 1/42 (2006.01); C21D 9/32 (2006.01); H01F 27/00 (2006.01); H05B 6/10 (2006.01); H05B 6/36 (2006.01); H05B 6/40 (2006.01); H05B 6/42 (2006.01)

CPC (source: CN EP US)

B22F 3/24 (2013.01 - EP); B22F 10/20 (2021.01 - CN); B22F 10/38 (2021.01 - CN); B33Y 10/00 (2014.12 - EP); B33Y 80/00 (2014.12 - CN EP US); C21D 1/10 (2013.01 - CN EP US); C21D 1/42 (2013.01 - EP US); C21D 1/62 (2013.01 - CN); C21D 9/24 (2013.01 - CN US); C21D 9/32 (2013.01 - CN EP US); H05B 6/10 (2013.01 - CN); H05B 6/101 (2013.01 - EP US); H05B 6/40 (2013.01 - CN EP); H05B 6/405 (2013.01 - EP US); H05B 6/42 (2013.01 - CN EP US); B22F 5/08 (2013.01 - EP); B22F 10/00 (2021.01 - EP); B22F 2003/248 (2013.01 - EP); B22F 2005/001 (2013.01 - EP); B22F 2207/20 (2013.01 - EP); B22F 2999/00 (2013.01 - EP); B33Y 10/00 (2014.12 - US); B33Y 30/00 (2014.12 - EP); Y02P 10/25 (2015.11 - EP)

Citation (search report)

See references of WO 2021028343A1

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 102019127231 A1 20210211; CN 114502750 A 20220513; EP 3993927 A1 20220511; US 2022186332 A1 20220616; WO 2021028343 A1 20210218

DOCDB simple family (application)

DE 102019127231 A 20191010; CN 202080069472 A 20200807; EP 2020072259 W 20200807; EP 20753356 A 20200807; US 202217650365 A 20220208