Monitoring of friction stir welding for dissimilar Al 6063 alloy to polypropylene using sensor signals
| Autor: | Padmanav Dash, Santosh K. Sahu, Raju Prasad Mahto, Kamal Pal |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Materials science Traverse Mechanical Engineering Butt welding Rotational speed 02 engineering and technology Welding Edge (geometry) Industrial and Manufacturing Engineering Computer Science Applications law.invention 020901 industrial engineering & automation Control and Systems Engineering law Friction stir welding Formability Torque Composite material Software |
| Zdroj: | The International Journal of Advanced Manufacturing Technology. 104:159-177 |
| ISSN: | 1433-3015 0268-3768 |
| Popis: | The present work addresses the feasibility of friction stir butt welding of dissimilar Al6063 to polypropylene for cylindrical and threaded tool pin profile at different tool positions like tool offsetting and slotted edge–based base plate design as bridle joint to improve the weld quality. The new slotted edge–based design using threaded tool pin profile was found to be highly efficient. This work was further extended with the interaction effect of tool rotational speed and traverse speed. The major objective was to investigate the variation of axial force and torque due to the parametric variation, especially to find the correlation with weld quality characteristics. The mean and standard deviation of axial force and torque indicated the formability and material mixing capability during welding which in turn found to be highly correlated to weld bead uniformity. The joint behavior due to tensile load and bonding mechanism in weld stirred zone have been studied using stress-strain diagram and scanning electron micrographs, respectively. The weld joint interface was found to be the weakest zone rather than weld stirred zone due to the presence of carbon reach phases as per micro-hardness variation through the weld centerline along with energy dispersive spectroscopy analysis. The maximum joint efficiency was found to be 23.33% at 700-rpm tool rotation and traverse speed of 30 mm/min using threaded pin in slotted edge–based design. |
| Databáze: | OpenAIRE |
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