EP 0050163 A1 19820428 - Method of forming threaded metal parts.
Title (en)
Method of forming threaded metal parts.
Title (de)
Verfahren zur Formung von Metallteilen mit Gewinde.
Title (fr)
Procédé pour façonner des pièces métalliques filetées.
Publication
Application
Priority
EP 80106343 A 19801017
Abstract (en)
In the manufacture of threaded metal parts (10) the machining of the threads has been a major factor in the cost of such parts. The present invention provides an arrangement by which threaded parts may be obtained from sheet metal (18) entirely through a stamping operation. The result is a drastic reduction in the cost of producing the parts, much faster production, savings of material while obtaining parts of superior performance and better appearance.
IPC 1-7
IPC 8 full level
B21D 35/00 (2006.01); B21D 37/08 (2006.01)
CPC (source: EP)
B21D 35/00 (2013.01); B21D 37/08 (2013.01)
Citation (search report)
- US 1433878 A 19221031 - JAMES FANCHER CHARLES, et al
- US 1369975 A 19210301 - JOHNSON EDWARD E
- US 1502133 A 19240722 - ANDERSON CARL E
- AT 164592 B 19491125 - SECURIT S E D L C SOC
- GB 1470791 A 19770421 - SUPER ELECTRICAL PRODUCTS LTD
- [A] DE 1117855 B 19611123 - VERMONT AMERICAN CORP
- [A] US 2881510 A 19590414 - LARSON CHARLES O
- [A] US 3443542 A 19690513 - KLUMPP FERDINAND JR, et al
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 80106343 A 19801017