Sensing the gas metal arc welding process

Conference · Wed Jan 01 04:00:00 EST 1992

OSTI ID:6915311

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: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 6915311
• Report Number(s): EGG-M-92101; CONF-9211113--1; ON: DE93001957
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
ARC WELDING
CHARGE-COUPLED DEVICES
COMPUTERIZED CONTROL SYSTEMS
CONTROL
CONTROL SYSTEMS
DEFECTS
DROPLETS
DYNAMICS
FABRICATION
GAS METAL-ARC WELDING
JOINING
JOINTS
LASERS
MECHANICS
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
OPTICAL PROPERTIES
PARTICLES
PHYSICAL PROPERTIES
REAL TIME SYSTEMS
REMOTE SENSING
SEMICONDUCTOR DEVICES
SURFACE PROPERTIES
WELDED JOINTS
WELDING