Method for manufacturing a center electrode for a spark plug

Details Method for manufacturing a center electrode for a spark plug Method for manufacturing a center electrode for a spark plug

1986-11-24

1987-11-10

Rowan, Kurt

Electric lamp or space discharge component or device manufacturi

Process

Generating gas or vapor within an envelope, or coating by...

228155, 228125, H01T 2102

Patent

active

047054867

ABSTRACT:
A method of manufacturing an electrode (40) for a spark plug. A cylindrical length (10) of inconel wire has a first end (12) with a flat surface thereon. The inconel wire (10) is placed in a die and partially extruded to create a cylindrical bore (16) that extends from a second end (14) toward the first end (12). A strip of platinum (18) is welded to the flat surface (12) after which a chamfering (22) operation removes any excess platinum and weld flash to produce a cylindrical tip (18) on said first end. The inconel wire (10) with its platinum tip (18) is placed in a die and struck with a force causing the cylindrical bore (16) to be extended while the platinum flows (24) along the chamfer (22) to completely cover the weld (20). A copper core (26) is inserted in said cylindrical bore (16) and then further struck to extrude the resulting electrode (36) to a desired length.

REFERENCES:
patent: 2265352 (1941-12-01), Corbin
patent: 3010196 (1961-11-01), Smith
patent: 3119944 (1964-01-01), Lentz
patent: 3356882 (1967-12-01), Hallauer
patent: 3407326 (1968-10-01), Romine
patent: 3967149 (1976-06-01), Eaton

Affiliated with

Also associated with

Rating

Method for manufacturing a center electrode for a spark plug does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for manufacturing a center electrode for a spark plug, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing a center electrode for a spark plug will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1065285