Ceramic backing tile with consumable insert

Patent metadata

Field	Value
Publication number	US-2016288234-A1
Application number	US-201514675996-A
Country	US
Kind code	A1
Filing date	Apr 1, 2015
Priority date	Apr 1, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

A weld backing assembly includes a backing tile configured to be applied to the underside of a seam between adjacent edges of two spaced-apart metal articles to be welded together. The backing tile is further configured to be aligned beneath the seam between the adjacent edges of the articles to support molten weld metal. The weld backing assembly also includes a consumable metal insert including an elongate strip embedded into a longitudinal center channel of the backing tile and one or more lateral strips embedded into corresponding lateral channels formed within the top surface of the backing tile.

First claim

What is claimed is:

1 . A weld backing assembly comprising:
a backing tile configured to be applied to the underside of a seam between adjacent edges of two spaced-apart metal articles which are to be welded together, the backing tile further configured to be aligned beneath the seam between the adjacent edges of the articles to support molten weld metal, the backing tile including a centrally aligned longitudinal center channel formed within a center region of a top layer of the backing tile and one or more lateral channels formed within the top layer of the backing tile; and a consumable metal insert including an elongate strip configured to be embedded into the centrally aligned longitudinal center channel and one or more lateral strips embedded into the one or more lateral channels.

2 . The weld backing assembly of claim 1 , wherein the consumable metal insert is embedded into a top layer of the backing tile such that a top surface of the consumable metal insert is exposed and is configured to contact a portion of each of the two spaced-apart metal articles.

3 . The weld backing assembly of claim 2 , wherein the top surface of the consumable metal insert is flush with a top surface of the ceramic tile.

4 . The weld backing assembly of claim 2 , wherein the top surface of the consumable metal insert extends above a top surface of the ceramic tile.

5 . The weld backing assembly of claim 1 , wherein the consumable metal insert has a thickness of between 1 mm and 5 mm.

6 . The weld backing assembly of claim 1 , wherein the consumable insert provides electrical conduction between the two spaced-apart metal articles and weld material used during a weld.

7 . The weld backing assembly of claim 6 , wherein the one or more lateral strips are configured to close a circuit between the two spaced-apart metal articles.

8 . The weld backing assembly of claim 6 , wherein the consumable metal insert is consumed into a weld puddle during the weld.

9 . The weld backing assembly of claim 6 , wherein the consumable insert is composed of one or more alloy metals that do not adversely affect a weld bead composition of a weld bead formed to join the two spaced-apart metal articles during the weld.

10 . The weld backing assembly of claim 1 , further comprising:
heat resistant pressure sensitive adhesive tape applied to the undersurface of the backing tile and extending laterally from the block, wherein the heat resistant pressure sensitive adhesive tape is configured to be secured to the articles to hold the backing tile in position beneath the seam.

11 . A method for forming a weld backing assembly comprising:
forming a backing tile assembly configured to be applied to the underside of a seam between adjacent edges of two spaced-apart metal articles which are to be welded together, the backing tile assembly including a plurality of individual backing tiles and further configured to be aligned beneath the seam between the adjacent edges of the articles to support molten weld metal; forming a centrally aligned elongate channel within a top layer of the backing tile assembly, wherein the centrally aligned elongate channel spans the length of the backing tile assembly; forming a plurality of transverse channels within a top layer of the backing tile assembly, including forming at least one transverse channel within an upper region of the top layer of at least one of the plurality of individual backing and forming at least one transverse channel within a lower region of the top layer of at least one of the plurality of individual backing tiles; forming a consumable metal insert configured to be embedded into the top layer of the backing tile assembly, including forming an elongate strip configured to be embedded into the centrally aligned elongate channel and forming one or more lateral strips configured to be embedded into corresponding lateral channels formed within the top layer of the backing tile assembly; and embedding the consumable metal insert into the top layer of the backing tile assembly.

12 . The method of claim 11 , wherein the consumable metal insert is embedded into a top layer of the backing tile such that a top surface of the consumable metal insert is exposed and is configured to contact a portion of each of the two spaced-apart metal articles.

13 . The method of claim 12 , wherein the top surface of the consumable metal insert is flush with a top surface of the ceramic tile.

14 . The method of claim 12 , further comprising:
forming a top surface of the consumable metal insert to extend above the top surface of the ceramic tile.

15 . The method of claim 11 , further comprising:
forming the consumable metal insert has a thickness of between 1 mm and 5 mm.

16 . The method of claim 11 , further comprising:
forming the consumable insert to provide electrical conduction between the two spaced-apart metal articles and weld material used during a weld.

17 . The method of claim 16 , wherein the one or more lateral strips are configured to close a circuit between the two spaced-apart metal articles.

18 . The method of claim 16 , further comprising;
forming the consumable metal insert to be consumed into a weld puddle during the weld.

19 . The method of claim 16 , further comprising:
forming the consumable insert from at least one or more alloy metals that do not adversely affect a weld bead composition of a weld bead formed to join the two spaced-apart metal articles during the weld.

20 . A weld backing assembly comprising:
a backing tile assembly configured to be applied to the underside of a seam between adjacent edges of two spaced-apart metal articles which are to be welded together, the backing tile assembly is further configured to be aligned beneath the seam between the adjacent edges of the articles to support molten weld metal, the backing tile assembly including:
a centrally aligned elongate channel spanning the length of the backing tile assembly; and
one or more transverse channels formed within a top layer of the backing tile assembly, wherein a first transverse channel may be formed within a top layer of a first backing tile and a second transverse channel may be formed within a top layer of a second backing tile that is spaced apart from the first backing tile by at least a third backing tile; and
a consumable metal insert embedded into the top layer of the backing tile, the consumable metal insert including an elongate strip configured to be embedded into the centrally aligned elongate channel and one or more lateral strips configured to be embedded into corresponding transverse channels formed within the first and second the backing tiles.

Assignees

• Caterpillar Inc

Inventors

• Adcock Leon
• Wang Huijun
• Ludewig Howard

Classifications

• B23K9/035 Primary

  with backing means disposed under the seam · CPC title

• B23K37/06

  for positioning the molten material, e.g. confining it to a desired area · CPC title

• B23K37/0461

  Welding tables · CPC title

• B23K9/0356 Primary

  the backing means being a tape or strip · CPC title