Sensing the gas metal arc welding process

Conference · Thu Oct 01 00:00:00 EDT 1992

OSTI ID:10190928

Carlson, N M; Johnson, J A; Smartt, H B; Watkins, A D; Larsen, E D; Taylor, P L ^[1]; Waddoups, M A ^[2]

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1. EG and G Idaho, Inc., Idaho Falls, ID (United States)
2. Idaho National Engineering Lab., Idaho Falls, ID (United States)

Control of gas metal arc welding (GMAW) requires real-time sensing of the process. Three sensing techniques for GMAW are being developed at the Idaho National Engineering Laboratory (INEL). These are (1) noncontacting ultrasonic sensing using a laser/EMAT (electromagnetic acoustic transducer) to detect defects in the solidified weld on a pass-bypass basis, (2) integrated optical sensing using a CCD camera and a laser stripe to obtain cooling rate and weld bead geometry information, and (3) monitoring fluctuations in digitized welding voltage data to detect the mode of metal droplet transfer and assure that the desired mass input is achieved.

• Research Organization: EG and G Idaho, Inc., Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 10190928
• Report Number(s): EGG-M-92101; CONF-9211113-1; ON: DE93001957
• Resource Relation: Conference: International conference on computerization of welding,Orlando, FL (United States),3-6 Nov 1992; Other Information: PBD: [1992]
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
36 MATERIALS SCIENCE
GAS METAL-ARC WELDING
CONTROL
WELDED JOINTS
REMOTE SENSING
DEFECTS
REAL TIME SYSTEMS
LASERS
CHARGE-COUPLED DEVICES
OPTICAL PROPERTIES
SURFACE PROPERTIES
COMPUTERIZED CONTROL SYSTEMS
DROPLETS
DYNAMICS
420200
360101
FACILITIES, EQUIPMENT, AND TECHNIQUES
PREPARATION AND FABRICATION