Effect of tool pin profile on friction stir butt welding of high-zinc brass (CuZn40)
| Autor: | Afshin Emamikhah, Alireza Abbasi, M.K. Besharati Givi, Ali Atefat |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Mechanical Engineering Butt welding Metallurgy Rotational speed Welding Fixture Industrial and Manufacturing Engineering Computer Science Applications law.invention Brass Spline (mechanical) Control and Systems Engineering law visual_art visual_art.visual_art_medium Friction stir welding Hexahedron Software |
| Zdroj: | The International Journal of Advanced Manufacturing Technology. 71:81-90 |
| ISSN: | 1433-3015 0268-3768 |
| DOI: | 10.1007/s00170-013-5480-1 |
| Popis: | In this experimental study, the effects of tool pin profiles (chamfered taper, single-threaded taper, three-flute, threaded cylinder, threaded taper, spline, and hexahedron) in friction stir welding of high-zinc brasses were explored through mechanical and micro-structural examinations. To evaluate the effect of temperature in friction stir welding, the temperature was measured by embedding thermocouples within the fixture body. Furthermore, in order to evaluate the effects of the tool shape, the main FSW parameters (rotational speed, travel speed and plunge force) were maintained constant. Mechanical tests (hardness, tensile and bending) and micro-structural examinations were performed to study the properties of welded samples with regard to temperature measurement. The results indicated that suitable tools can generate enough heat below the shoulder due to further materials stirring. Moreover, studies of a hexahedron sample revealed that accumulated defects near the weld were one reason for mechanical weakening with regard to a lower heat generated. |
| Databáze: | OpenAIRE |
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