Monitoring of Arcing Condition in GMAW and Its Variants

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N65538-08-M-0148
Agency Tracking Number: N082-178-0121
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2008
Solicitation Topic Code: N08-178
Solicitation Number: 2008.2
Small Business Information
A020B ASTeCC Building, University of Kentucky, Lexington, KY, 40506
DUNS: 615662207
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 YuMing Zhang
 (859) 537-9871
Business Contact
 YuMing Zhang
Title: President
Phone: (859) 537-9871
Email: ymzhang@adaptiveintelligentsystems.
Research Institution
This SBIR Phase I project is to prove the feasibility of an innovative weld monitoring technology. This innovative technology is characterized by (1) an innovative non-transferred arc sensor which responds to both surface conductivity and sensor-to-joint distance and can be used to monitor the joint geometry and possible surface contamination such as paint, oil, sand, etc. and (2) an innovative mechanism for determining the location of the arc root in relation to the joint geometry based on arc current and voltage waveforms. While the joint geometry and surface condition are the major variables whose deviations affect the arcing condition, the arc root location and arc current can be considered the results of their effects. The proposed monitoring method thus simultaneously monitors both the causes and results of possible arcing condition deviations.

* Information listed above is at the time of submission. *

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