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US 5,179,313 AGranted
Forming an erosion resistant tip on an electrode
AssigneeFord Motor Company
InventorsTerence J. Eves, Jeffrey W. Margetts, Graham E. Palmer
Life of this patent
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Abstract
To apply an erosion resistant tip, for example a platinum tip to an electrode 10, a wire 12 is fed onto the electrode and the tip welded to the electrode; the end of the wire is severed to leave a pellet 20 attached to the electrode; the pellet is coined and a subsequent welding operation takes place which results in the pellet penetrating into the end face of the electrode.
Claims9
A process for applying an erosion resistant tip to an electrode comprising:
- welding the end of a continuous wire, constituted of an erosion resistant material, to the electrode;
- (b) severing the wire at a predetermined distance from the weld to leave a pellet welded to the electrode;
- (c) flattening the pellet onto the electrode by coining;
- and
- (d) conducting a second welding during which pressure is applied to the pellet to force the pellet into the material of the electrode.
2 more elements
Dependencies are inferred from the claim text.