EP 2387480 A1 20111123 - METHOD FOR PRODUCING BORES
Title (en)
METHOD FOR PRODUCING BORES
Title (de)
VERFAHREN ZUM ERZEUGEN VON BOHRUNGEN
Title (fr)
PROCÉDÉ DE CRÉATION DE PERÇAGES
Publication
Application
Priority
- EP 2010050353 W 20100113
- DE 102009000237 A 20090115
Abstract (en)
[origin: WO2010081828A1] The invention relates to a method for producing bores (1), wherein a tool (22) which is connected as a cathode and a workpiece (20) which is connected as an anode are connected to a voltage source (21). The workpiece (20) and the tool (22) are interconnected via an electrolyte (26) in an electroconductive manner. An electrical potential difference (Ua) is produced at least at times between the workpiece (20) and the tool (22) to remove material from the workpiece (20). The workpiece (20) and the tool (22) are furthermore subjected to a relative movement in relation to each other to produce the bore (1). The invention is characterized in that the potential difference (Ua) between the workpiece (20) and the tool (22) is adjusted by choosing the voltage level in such a manner that a gas vapor envelope (27) is produced and surrounds the tool (22). The method according to the invention allows bores (1) to be economically produced with a relatively simple tool (22).
IPC 8 full level
B23H 1/02 (2006.01); B23H 3/00 (2006.01); B23H 3/02 (2006.01); B23H 5/02 (2006.01)
CPC (source: EP US)
B23H 1/02 (2013.01 - EP US); B23H 3/00 (2013.01 - EP US); B23H 3/02 (2013.01 - EP US); B23H 5/02 (2013.01 - EP US)
Citation (search report)
See references of WO 2010081828A1
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 MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
DE 102009000237 A1 20100722; EP 2387480 A1 20111123; US 2012012469 A1 20120119; WO 2010081828 A1 20100722
DOCDB simple family (application)
DE 102009000237 A 20090115; EP 10700738 A 20100113; EP 2010050353 W 20100113; US 201013138166 A 20100113