Weld kit and method for limited access weld joints

Patent metadata

Field	Value
Publication number	US-10286482-B2
Application number	US-201514739785-A
Country	US
Kind code	B2
Filing date	Jun 15, 2015
Priority date	Jun 15, 2015
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

A weld kit is presented for use in creating a weld with limited access to a structure. The weld kit contains a back plate being a combination of a thermic material attached to a metallic material. Additionally, the weld kit has a lowering device secured to the back plate. A plurality of tacking nodes travel through both the thermic material and the metallic material of the back plate. The plurality of tacking nodes are operative to accept and distribute heat from a welding arc to create a tack weld at a location where at least one of the plurality of tacking nodes contacts a weld joint. The presented weld kit may be used to repair a damaged enclosed structure. Additionally, the presented weld kit may also be used to create an enclosed structure in a manufacture type environment.

First claim

What is claimed is:

1. A weld kit for use in creating a weld with limited access to an enclosed structure, the weld kit comprising:
a back plate, the back plate being a combination of a thermic element secured to a metallic element;
a lowering device, the lowering device secured to the back plate and configured to lower the back plate into the enclosed structure; and
a plurality of tacking nodes, the plurality of tacking nodes traveling through both the thermic element and the metallic element of the back plate and helping secure the thermic element to the metallic element of the back plate.

2. The weld kit of claim 1 , wherein the thermic element is a ceramic element.

3. The weld kit of claim 1 , wherein the metallic element is a steel plate.

4. The weld kit of claim 1 , wherein a tape is positioned between and attaches the thermic element and the metallic element.

5. The weld kit of claim 4 , wherein the tape attaches to both the thermic element and the metallic element through use of an adhesive.

6. The weld kit of claim 1 , wherein the plurality of tacking nodes are a plurality of electrodes.

7. The weld kit of claim 6 , wherein the plurality of electrodes each have a U-shaped configuration.

8. The weld kit of claim 6 , wherein the plurality of electrodes each have a L-shaped configuration, the L-shaped configuration having a top portion with a flat profile extending above the thermic material of the back plate for each of the plurality of electrodes.

9. The weld kit of claim 1 , wherein the plurality of tacking nodes is located in a center location of the back plate.

10. The weld kit of claim 1 , wherein the plurality of tacking nodes is located in an off center location near at least one of the edges of the back plate.

Assignees

• Caterpillar Inc

Inventors

• Wang Huijun
• Powell Kendall Reed
• Shao Yan
• Stickel Donald
• Ludewig Howard

Classifications

• B23K23/00 Primary

  Alumino-thermic welding · CPC title

• B23K9/0026 Primary

  specially adapted for particular articles or work · CPC title

• B23K9/035

  with backing means disposed under the seam · CPC title

• B23K9/16

  making use of shielding gas · CPC title