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Showing 1 to 11 of 11 for “"Weld Strength"”.
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Effect of Weld Strength Mismatch on Elastic-Plastic Fracture Parameters
This study quantifies the effect of weld strength mismatch on applied J, applied CTOD, and crack-tip constraint for both remote tensile and bending loads. Very detailed elastic-plastic finite element models for a wide range of geometrical configurations and material properties provide the …
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Weld strength and crack growth ductility from the Lazy-L test
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Fundamentals of friction stir spot welding
… and calls for more attention. Friction Stir Spot Welding (FSSW) is an evolving technique that offers several advantages over conventional joining processes.</p> <p>The fundamentals aspects of FSSW are systematically studied in this dissertation. The effects and influence of process inputs (weld …
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Thermal Degradation of PC and PA6 During Laser Transmission Welding (LTW)
In laser transmission welding (LTW), a laser beam passes through the laser-transparent part and is absorbed by carbon black (CB) in the laser-absorbent part. This causes a temperature rise at the interface between the parts which leads to melting, diffusion and ultimately joining of the two …
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Reuse of steel and aluminium without melting
… aluminium scrap, the scrap fragments solid-state welding together when extruded. In order to evaluate potential applications for these profiles four case studies are conducted in collaboration with aluminium producers and product manufacturers. It was found that strong and formable profiles could …
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Strength Development at Incompatible Polymer Interfaces
Mechanical strength of incompatible polymer interfaces welded above T$\sb{\rm g}$ has been investigated as a function of time, temperature, and composition. Three pairs of polymers were used: polystyrene-polymethylmethacrylate, polystyrene-co-acrylonitrile-polymethylmethacrylate, and …
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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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Strength of Arc Spot Welds Made in Single and Multiple Steel Sheets
… was to establish a relationship between arc spot weld shear strength and the arc time used to form the weld. Lap shear tests were performed on both 3/4 in. and 5/8 in. nominal diameter welds. Each weld was formed in one-, two-, or four-layers of sheet steel ranging from 22 gauge (0.028 in.) to 16 …
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Design of moment end-plate connections for seismic loading
… observed nor reported were encountered. When weld access holes were present in an extended end-plate connection, excessive 3-D stresses developed in the hole region, causing a brittle fracture of the beam flange. In the absence of weld access holes, ductile failure occurred, evidenced by local …
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Flexible Media Polishing Machine for Ti-6Al-4V Components
… steady abrasive/air flow calculations and weld strength calculations. Experimental techniques include gathering force data (using a dynamometer) and finding surface properties (using a profilometer and various microscopes). This led to gathering a large set of results which were used to …
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Study of polymeric materials for industrial applications in the field of laser welding
L'abstract è presente nell'allegato / the abstract is in the attachment