Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 8 of 8 for “"Bead geometry"”.
-
Heat distribution and weld bead geometry in arc welding
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1983.
-
Feasibility and optimization of dissimilar laser welding components
… to relate the mechanical properties, weld bead geometry, principal residual stress and unit operating cost to the selected input welding parameters. The dissimilar materials studied in this work are low carbon steel, 316 stainless steel, titanium G2, different types of aluminium alloys such …
-
Development and modelling of weld cooling time equations.
… particularly critical. A model to link the weld bead geometry to the 8OO to 500 °C cooling time for submerged arc welding has been developed. This model combined with the existing work in this field indicates that the role of the weld pool shape and the arc efficiency in determining the cooling …
-
Determining primary drivers of river bead functionality in mountain headwater streams
… extensive storage-dominated reaches known as 'beads.' Beads are disproportionately important to river corridor health. Bead functionality was evaluated as a relationship between driver variables, which directly measure or measure proxies of geomorphic and biotic system inputs, and response …
-
Butt fusion welding of polyethylene pipes
… microtomed blades. The macro-structure of the bead: its shape and dimensions were found to be a function of temperature and pressure. Correlation was found between the bead geometry and the position around the circumference of the pipe. The macrostructures within the weld zone also showed this …
-
Integration of substrate in aluminium wire and arc additive manufacturing
… of the substrate and the resulting change in bead geometry. This can lead to lower mechanical properties in this area and could be detrimental to the properties of the interface. This project was funded by Constellium Technology Center.
-
Quenching and tempering effects on Rheo-cast F357 aluminium alloy during Nd: YAG laser welding
… like porosity, loss of alloying elements, poor bead geometry and softening of the heat affected zone. Laser welding is however widely used in industrial production owing to the advantages such as low heat input, high welding speed and high production rate. Due to these unique advantages, the …
-
Rheological and Thermal Insights into Solidification Dynamics in Extrusion-Based Additive Manufacturing of Polymer Composites
… correlating rheological properties with printed bead morphology, we identify tan delta as a key predictor of shape retention, where formulations exhibiting a predominant solid-like behavior (tan delta ≤ 1 at low angular frequencies) demonstrated adequate structural integrity post-deposition. The …