FEASIBILITY STUDY OF A NEXT GENERATION VPPA WELDING CONTROL SYSTEM

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$204,000.00
Award Year:
1987
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
2798
Agency Tracking Number:
2798
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
7702 Governors Dr, Huntsville, AL, 35805
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Dipak V Vora
Principal Investigator
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
NEW APPROACHES TO AUTOMATIC CONTROL ARE NEEDED IF VARIABLE POLARITY PLASMA ARC (VPPA) WELDING IS TO REALIZE ITS FULL POTENTIAL AS A RELIABLE, REPEATABLE, COST EFFECTIVE PROCESS.PRESENT VPPA CONTROL SYSTEMS ARE FIRST GENERATION, ELEMENTARY COMPUTER-BASED SYSTEMS THAT DEPEND ON PROGRAMS WHICH ARE EXPERIMENTALLY DERIVED, AND DO NOT COMPENSATE FOR ANOMOLIES INJECTED BY TOOLING, PART, AND OTHER INDEPENDENT VARIABLES. THIS SBIR EFFORT WILL INVESTIGATE THE FEASIBILITY OF USING REAL-TIME MEASURES OF JOINT QUALITY TO CONTROL ALL ASPECTS OF WELDER OPERATION. THE KEY DETERMINANTS OF JOINT QUALITY WILL BE ESTABLISHED, THE ABILITY TO SENSE EACH QUALITY DETERMINANT USING AVAILABLE TECHNOLOGY WILL BE INVESTIGATED,AND AN ESTIMATE OF CONTROL ABILITY WILL BE MADE FOR EACH DETERMINANT. IN PHASE II, A SET OF REQUIREMENTS FOR THIS NEXT GENERATION CONTROL SYSTEM WILL BE DERIVED, AND A PROTOTYPE WILL BE DESIGNED AND IMPLEMENTED. IF SUCCESSFUL, THIS INNOVATION WILL TRANSFORM AN EXPENSIVE, SENSITIVE, AND HUMAN-ERROR-PRONE PROCESS INTO A RELIABLE ANDEASY TO USE PROCESS THAT CAN PRODUCE SIGNIFICANT PRODUCTIVITY GAINS IN THE MANUFACTURE OF AEROSPACE STRUCTURES.

* information listed above is at the time of submission.

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