EP 2241642 A1 20101020 - METHOD FOR REFINING TEXTURE OF FERROUS MATERIAL, AND FERROUS MATERIAL AND BLADE HAVING MICROSCOPIC TEXTURE
Title (en)
METHOD FOR REFINING TEXTURE OF FERROUS MATERIAL, AND FERROUS MATERIAL AND BLADE HAVING MICROSCOPIC TEXTURE
Title (de)
VERFAHREN ZUR VERFEINERUNG DER TEXTUR VON EISENMATERIAL UND EISENMATERIAL UND KLINGE MIT MIKROSKOPISCHER TEXTUR
Title (fr)
PROCÉDÉ D'AFFINAGE DE LA TEXTURE D'UN MATÉRIAU FERREUX, ET MATÉRIAU FERREUX ET LAME À TEXTURE MICROSCOPIQUE
Publication
Application
Priority
- JP 2008067565 W 20080926
- JP 2007250587 A 20070927
Abstract (en)
[PROBLEMS] To provide a method for refining the texture of a surface layer part in a ferrous material, to provide a ferrous material having a microscopic texture which can realize improved properties and prolonged service life of cutting tools, blades, and the like, and to provide a blade with a cutting edge formed by fabricating a microscopic texture region, wherein the expression "refining a texture" means the refinement of base metal crystal grains and the refinement of carbides. [MEANS FOR SOLVING PROBLEMS] A method for refining the texture of a ferrous material, comprising a first step of forming a carbide refined region and a second step of forming a texture refined region. In the first step, the surface layer part in the ferrous material is locally and rapidly heated by a laser beam to form a melt reservoir which is then rapidly solidified to form a carbide refined region. In the second step, the carbide refined region formed in the first step is subjected to a friction agitation process to form a texture refined region.
IPC 8 full level
C21D 1/09 (2006.01); B23K 20/12 (2006.01); C21D 9/18 (2006.01)
CPC (source: EP)
C21D 1/09 (2013.01); C21D 9/18 (2013.01); C21D 9/46 (2013.01); C21D 2201/03 (2013.01); C21D 2211/00 (2013.01); C21D 2211/003 (2013.01); C21D 2221/00 (2013.01); C21D 2221/02 (2013.01)
Citation (search report)
See references of WO 2009041665A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2241642 A1 20101020; JP 5419046 B2 20140219; JP WO2009041665 A1 20111006; WO 2009041665 A1 20090402
DOCDB simple family (application)
EP 08833284 A 20080926; JP 2008067565 W 20080926; JP 2009534445 A 20080926