Fusing machine, method and electrode set

• US 4,755,650 A
• Filed: 12/04/1986
• Issued: 07/05/1988
• Est. Priority Date: 12/19/1983
• Status: Expired due to Term

• Current Assignee: Alliance Winding Equipment, Inc.
• Original Assignee: Joyal Products Incorporated
• Inventors: Riordan, Edward D.
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): Sidga, C. M.
• Application Number:
  US06/937,711
• Time in Patent Office: 579 Days
• Field of Search: 219/56, 219/56.1, 219/56.22, 219/91.2, 219/91.21, 219/91.23, 219/86.1
• US Class Current: 219/56.22
• CPC Class Codes: B23K 11/0026 Welding of thin articles
• CPC Class Codes: B23K 11/3009 Pressure electrodes

Abstract

A fusing machine and method employ a first electrode which defines a fusing station and a second electrode which is movable toward and away from the first electrode. Two wires which have been fused together at the fusing station are automatically cut without removing the fused wires from the fusing station prior to cutting them. Also disclosed is an electrode set including a first electrode having an inwardly tapered slot sized and shaped so as to releaseably capture wires to be fused and a second electrode having a straight-sided tip sized and shaped so as to be freely movable into and out of the slot in the first electrode.

Claims

1. A method of fusing together magnet wire and stranded wire, comprising the steps of providing a first electrode which includes an inwardly tapered slot having two opposed, inclined sidewalls and being sized and shaped so as to releaseably capture said magnet wire and said stranded wire, providing a second electrode which includes a tip having two oppositely-facing parallel walls and being sized and shaped so as to be freely movable into and out of said slot in said first electrode, inserting said magnet wire and said stranded wire into said slot in said first electrode such that said stranded wire is above said magnet wire, moving said second electrode such that said tip thereof enters said slot in said first electrode with substantial portions of said parallel walls of said tip confronting said inclined sidewalls of said slot and said tip engages said stranded wire, energizing said first and second electrodes to an extent such that the heat and pressure generated by said first second electrodes fuse said stranded wire to said magnet wire.

2. A fusing method according to claim 1, wherein said inclined sidewalls form between them an included angle of about 10°

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