Experimental study on strength of spot welded
Spot welding is the most important process in automotive industries to joining the sheet metal. For having more complex structure, it is important to know and understand the behavior of spot welding process. In this project, the spot welding behavior using different variables for low carbon steel wa...
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| Format: | Undergraduates Project Papers |
| Language: | English English English English |
| Published: |
2009
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| Online Access: | http://umpir.ump.edu.my/id/eprint/2373/ http://umpir.ump.edu.my/id/eprint/2373/ http://umpir.ump.edu.my/id/eprint/2373/1/Experimental%20study%20on%20strength%20of%20spot%20welded%20%28Table%20of%20content%29.pdf http://umpir.ump.edu.my/id/eprint/2373/2/Experimental%20study%20on%20strength%20of%20spot%20welded%20%28Abstract%29.pdf http://umpir.ump.edu.my/id/eprint/2373/3/Experimental%20study%20on%20strength%20of%20spot%20welded%20%28Chapter%201%29.pdf http://umpir.ump.edu.my/id/eprint/2373/4/Experimental%20study%20on%20strength%20of%20spot%20welded%20%28References%29.pdf |
| Summary: | Spot welding is the most important process in automotive industries to joining the sheet metal. For having more complex structure, it is important to know and understand the behavior of spot welding process. In this project, the spot welding behavior using different variables for low carbon steel was studied experimentally. The different types of orientation, thicknesses including low carbon steel 1.2 mm, 1.5 mm, and 2.0 mm were considered in this project. There are also variable welding
current including 3kA, 4kA, and 5kA and welding time including 1 second, 2 second, and 3 second were selected. Tensile shear test shows that orientation 1 samples have
the highest maximum load, about 12.65kN, but orientation 2 samples have the highest maximum stress, about 1 80.75MPa. In different weld current conditions,
samples of 2 mm thickness with 5kA weld current shows highest maximum load and stress, about 2.52kN and 12.65MPa respectively. In different weld time conditions,
samples of 2 mm thickness with 3 second weld time shows highest maximum load and maximum stress, about 14.92kN and 186.53MPa respectively. All the experiments show an increment in maximum load with increment the variables
except for samples of 1.2 mm thickness. |
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