Research on Synchronized Cooling Hot Forming Process of 6016 Aluminum Alloy

Ming He Chen; Y.Y. Cao; W. Chen; Guo Liang Chen

doi:10.4028/www.scientific.net/AMR.452-453.81

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 452-453Research on Synchronized Cooling Hot Forming...

Research on Synchronized Cooling Hot Forming Process of 6016 Aluminum Alloy

Abstract:

In order to improve formability of high strength Al-alloy sheet metal, in this paper, it come up with the synchronized cooling hot forming process. Taking the aluminum alloy of 6016 H18 aluminum alloy, which carried out its technology test by Gleeble3500 hot-mechanical simulator. The process parameters such as deformation temperature T, holding time t and cooling rate v is investigated by the orthogonal test and the microstructure is analyzed simultaneously. The results show that the synchronized cooling hot forming process can be applied to 6016 H18 aluminum alloy, it both improves the formability of 6016 H18 aluminum alloy significantly and obtains the high strength after forming, it can meet the purpose of implementing deformation and enhanced in one process step, the proper combination of process parameters are T=450 °C, t=210 s, v=60 °C/s. Strengthening mechanism is which there is a large number of strengthening phase precipitated from matrix in technology process, the strengthening phases are coarser and the dispersed uniformity is a bit worse compared with that of T4 state.