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Showing 1 to 13 of 13 for “"resistance spot welding"”.
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Analyses of resistance spot welding lobe curve
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1989.
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Resistance spot welding of galvanized steel sheet
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1984.
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An investigation of nugget formation and simulation in resistance spot welding
Resistance spot welding is an important part of the automotive manufacturing industry. Today's automobiles typically contain five-thousand or more welds. Spot welding is attractive to the industry for its speed and relative simplicity, however, it is not without its disadvantages. Current spot …
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Ultrasonic phased array imaging and data post processing with applications to resistance spot welding
Resistance spot welding is a widely used metal joining method in the automotive industry due to its low cost, ease of automation and high throughput. Resistance spot welding is a process that joins two or more metal sheets through the application of force and high current in a localized region, or …
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An investigation of resistance spot welding current and time parameters for different thicknesses of SAE CR 1010 steel
… maxima and minima values, within limits of the welding machine parameters: current and time, for 28 gauge, 24 gauge, 20 gauge, 18 gauge, and 16 gauge of SAE CR 1010 steel. 2. To implement and calibrate the instrumentation necessary to determine accurate values, within limits, of the variables …
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Spot Friction Welding of Ultra High-Strength Automotive Sheet Steel
<p>Spot friction welding (SFW) was performed on ultra high strength steel (UHSS) steel sheet commonly used in automobile manufacturing. Alloys studied included DP780, DP780EG, DP980, and DF140T sheet steel of varying thickness from 1.2 mm to 1.4 mm. Welding was accomplished using a PCBN standard …
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Finite element analysis of self-pierce riveting in magnesium alloys sheets
Conventional fusion joining methods such as resistance spot welding have been demonstrated to not be effective for magnesium alloys. Therefore, self-pierce riveting (SPR) has been presented as an attractive joining technique for these lightweight metals. However, SPR must be performed at elevated …
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Ultrasonic Real-Time Quality Monitoring Of Aluminum Spot Weld Process
The real-time ultrasonic spot weld monitoring system, introduced by our research group, has been designed for the unsupervised quality characterization of the spot welding process. It comprises the ultrasonic transducer (probe) built into one of the welding electrodes and an electronics hardware …
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A Prediction Modeling Framework For Noisy Welding Quality Data
… extracting useful information from the data. In resistance spot welding (RSW), data inconsistency is a well-known issue. In general, such inconsistent data are treated as noise data and removed from the original dataset before conducting analyses or constructing prediction models. This may not be …
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INVESTIGATION OF SPOT WELDING ELECTRODE TIP WEAR AND A NON-DESTRUCTIVE TEST OF PLASTIC JOINING IN THE AUTOMOTIVE INDUSTRY
The automotive industry is reliant on resistance spot-welding just as the sandwich making industry is reliant on bread. An automobile contains an average of 5000 welds. The quality of these welds is inspected and governed by certain standards. In order to maintain these standards there are …
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Caracterización del proceso de soldadura por puntos por fricción agitación empleando el análisis de señales vibroacústicas
Welding plays an important role in industrial processes, among the most important of which are electronic arc welding with consumable and non-consumable electrode; solid phase welding (cold welding, by friction, by explosion, by ultrasound, by diffusion, among others); gas welding, etc. Towards the …
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Understanding the mechanisms and parameters affecting the structural corrosion of sheet gauge 7xxx alloys
… it enables weight reduction without loss of dent resistance while meeting stiffness requirements. Moreover, the difference in the manufacturing process between sheet and plate leads to a distinct microstructure. The objective of this study is to examine the impact of processing sequence, alloy …
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Development and Characterization of Friction Bit Joining: A New Solid State Spot Joining Technology Applied to Dissimilar Al/Steel Joints
… bit joining (FBJ) is a new solid-state spot joining technology developed in cooperation between Brigham Young University of Provo Utah, and MegaStir Technologies of West Bountiful Utah. Although capable of joining several different material combinations, this research focuses on the …