Sensing and modelling of gas metal arc welding
Welding automation is normally concerned with directly controlling such factors as current, arc voltage, travel speed, and filler wire speed. Several other levels of control can be identified beyond present technology including control of weld heat input, cooling rate, and bead geometry (bead width, penetration, reinforcements, and defects). This work describes the development of a steady-state model of the gas metal arc (GMA) welding process which allows independent control of the heat and mass input to the base metal. An electro-optical technique for measurement of the welding pool and groove geometry is also described along with an ultrasonic method for sensing the weld bead. 5 refs., 5 figs., 1 tab.
- Research Organization:
- EG and G Idaho, Inc., Idaho Falls, ID (United States)
- DOE Contract Number:
- AC07-76ID01570
- OSTI ID:
- 6185666
- Report Number(s):
- EGG-M-17987; CONF-870679-6; ON: DE89011153
- Resource Relation:
- Conference: 5. symposium on energy engineering sciences, Argonne, IL, USA, 17 Jun 1987; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
GAS METAL-ARC WELDING
AUTOMATION
ELECTRIC CURRENTS
ELECTRO-OPTICAL EFFECTS
EQUATIONS
HEAT TRANSFER
MASS TRANSFER
MONITORING
ULTRASONIC TESTING
ACOUSTIC TESTING
ARC WELDING
CURRENTS
ENERGY TRANSFER
FABRICATION
JOINING
MATERIALS TESTING
NONDESTRUCTIVE TESTING
TESTING
WELDING
360101* - Metals & Alloys- Preparation & Fabrication
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360601 - Other Materials- Preparation & Manufacture
420200 - Engineering- Facilities
Equipment
& Techniques