EP 2895640 A1 20150722 - METHOD FOR PRODUCING A SELF-TAPPING SCREW
Title (en)
METHOD FOR PRODUCING A SELF-TAPPING SCREW
Title (de)
VERFAHREN ZUM HERSTELLEN EINER SELBSTSCHNEIDENDEN SCHRAUBE
Title (fr)
PROCÉDÉ DE FABRICATION D'UNE VIS AUTOTARAUDEUSE
Publication
Application
Priority
- DE 102012216117 A 20120912
- EP 2013068739 W 20130910
Abstract (en)
[origin: WO2014040995A1] The invention relates to a method for producing a self-tapping screw, in which a blank consisting of a steel that can be hardened in a martensitic manner is provided. A screw form having a screw shank and a screw thread arranged on the screw shank is manufactured from the blank, and the screw form is then hardened in a nitrogen-containing gas atmosphere at a temperature greater than 900°C. The invention further relates to a self-tapping screw.
IPC 8 full level
C23C 8/26 (2006.01); B21K 1/56 (2006.01); C21D 9/00 (2006.01); C23C 8/80 (2006.01); F16B 25/00 (2006.01)
CPC (source: EP)
B21H 3/027 (2013.01); C21D 9/0093 (2013.01); C23C 8/26 (2013.01); C23C 8/80 (2013.01); F16B 25/0026 (2013.01)
Citation (search report)
See references of WO 2014040995A1
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 102012216117 A1 20140313; EP 2895640 A1 20150722; TW 201435142 A 20140916; WO 2014040995 A1 20140320
DOCDB simple family (application)
DE 102012216117 A 20120912; EP 13765313 A 20130910; EP 2013068739 W 20130910; TW 102132586 A 20130910