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Narrow groove welding gas diffuser assembly and welding torch

Patent ·
OSTI ID:873917
 [1]
  1. East Berne, NY
+ Show Author Affiliations

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
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

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Related Subjects

/219/
adapted
adjustable
adjustable mounting
assembly
automatic
central
communicate
communication
connected
diffuser
diffuser assembly
diffusers
direction
distal
downwardly
electrode
extend
extend downwardly
extending
fluid
fluid communication
gas
gas diffuser
gas inlet
gas supplied
gas tungsten
groove
groove welding
inlet
inserted
laterally
length
manifold
mounting
narrow
narrow groove
operation
opposite
passages
passes
provided
received
release
respectively
respectively connect
sections
shield
supplied
tapered
thickness
tip
torch
transverse
tungsten
weld
welding
welding torch
width