Establishing the Dependence of Output Parameters Depending on Local Process Conditions for Friction Stir Welding of Pure Copper Plates
| Autor: | Lia Nicoleta Boţilă, Eduard Niţu, Ana Boşneag, M A Constantin |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Imagination Thesaurus (information retrieval) Materials science Chemical substance media_common.quotation_subject Metallurgy General Engineering chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Copper Search engine chemistry 0103 physical sciences Ultimate tensile strength Friction stir welding 0210 nano-technology media_common |
| Zdroj: | Advanced Materials Research. 1146:32-37 |
| ISSN: | 1662-8985 |
| Popis: | Welding copper and its alloys is usually difficult to achieve by conventional fusion welding processes because of high thermal diffusivity of the copper, which is at least 10 times higher than most steel alloys, in addition to this, there are the well-known disadvantages of conventional fusion welding represented by necessity of using alloying elements, a shielding gas and a clean surface. To overcome these inconveniences, Friction Stir Welding (FSW), a solid state joining process that relies on frictional heating and plastic deformation, is being explored as a feasible welding process. In order to achieve an increased welding speed and a reduction in tool wear, this process is assisted by another one (TIG) which generates and adds heat to the process. The research includes two experiments for the FSW process and one experiment for tungsten inert gas assisted FSW process. The process parameters that varied were the rotational speed of the tool [rpm] and the welding speed [mm/min] while the compressive force remained constant. The purpose of this paper is to correlate the evolution of temperature, tensile strength, elongation and microscopic aspect with the linear position on the joint (local process parameters) for each experimental case and then make comparisons between them, and to identify and present the set of process parameters that has the best mechanical properties for this material. |
| Databáze: | OpenAIRE |
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