Narrow groove welding gas diffuser assembly and welding torch

Patent · Mon Jan 01 00:00:00 EST 2001

OSTI ID:873917

Rooney, Stephen J ^[1]

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1. East Berne, NY

A diffuser assembly is provided for narrow groove welding using an automatic gas tungsten arc welding torch. The diffuser assembly includes a manifold adapted for adjustable mounting on the welding torch which is received in a central opening in the manifold. Laterally extending manifold sections communicate with a shield gas inlet such that shield gas supplied to the inlet passes to gas passages of the manifold sections. First and second tapered diffusers are respectively connected to the manifold sections in fluid communication with the gas passages thereof. The diffusers extend downwardly along the torch electrode on opposite sides thereof so as to release shield gas along the length of the electrode and at the distal tip of the electrode. The diffusers are of a transverse width which is on the order of the thickness of the electrode so that the diffusers can, in use, be inserted into a narrow welding groove before and after the electrode in the direction of the weld operation.

• Research Organization: Knolls Atomic Power Laboratory (KAPL), Niskayuna, NY (United States)
• DOE Contract Number: AC12-76SN00052
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 6271495
• OSTI ID: 873917
• Country of Publication: United States
• Language: English

Related Subjects

narrow
groove
welding
gas
diffuser
assembly
torch
provided
automatic
tungsten
manifold
adapted
adjustable
mounting
received
central
laterally
extending
sections
communicate
shield
inlet
supplied
passes
passages
tapered
diffusers
respectively
connected
fluid
communication
extend
downwardly
electrode
opposite
release
length
distal
tip
transverse
width
thickness
inserted
direction
weld
operation
welding torch
gas inlet
fluid communication
diffuser assembly
adjustable mounting
gas supplied
gas tungsten
narrow groove
extend downwardly
groove welding
gas diffuser
respectively connect
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