Title: Manufacturing of magnesium/aluminum bimetallic ring components by friction stir assisted simultaneous forging and solid-state joining

Journal Article · · International Journal of Precision Engineering and Manufacturing Green Technology

Here, a bimetallic ring component is forged by a friction stir assisted forging (FS-forging). A cylindrical bimetallic blank, magnesium AZ31 cylinder (Mg core) tightly fitted inside an aluminum 6061-T6 tube (Al skin), is used. In the FS-forging, the frictional heat and stirring of rotating tool forge the blank into a desired shape, while simultaneously generate a solid-state joint between the Mg core and the Al skin, without additional external heating, as confirmed by the microstructural analysis and mechanical tests. The microstructural analysis also shows that the characteristics of the solid-state joint can be different depending on the process parameters.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
National Research Foundation of Korea (NRF); USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1907437
Report Number(s):
PNNL-SA-150783
Journal Information:
International Journal of Precision Engineering and Manufacturing Green Technology, Journal Name: International Journal of Precision Engineering and Manufacturing Green Technology Journal Issue: 5 Vol. 8; ISSN 2288-6206
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

References (20)

Past developments and future trends in the rotary or orbital forging process journal March 1988
Sensitivity analysis for thickness uniformity of Al coating layer in extrusion of Mg/Al clad bar journal March 2015
Study on compound spinning technology of large thin-walled parts with ring inner ribs and curvilinear generatrix journal June 2018
Extrusion of the bimetallic aluminum-magnesium rods and tubes journal February 2015
Formation of intermetallic phases in diffusion-welded joints of aluminium and magnesium alloys journal August 2010
Joining and fabrication of metal matrix composites by friction stir welding/processing journal January 2018
Uncovering Technological and Environmental Potentials of Aluminum Alloy Scraps Recycling Through Friction Stir Consolidation journal January 2020
The Technical and Commercial Potential of an Incremental Ring Rolling Process journal January 2005
Joining sheet metals by electrically-assisted roll bonding journal January 2015
Ring rolling with variable wall thickness journal January 2016
Combination of nano-particle deposition system and friction stir spot welding for fabrication of carbon/aluminum metal matrix composite joints of dissimilar aluminum alloys journal January 2017
Simultaneous deep drawing and cold forging of multi-material components: Draw-forging journal January 2019
Friction Stir Extrusion: A new process for joining dissimilar materials journal August 2015
Interfacial microstructure, bonding strength and fracture of magnesium–aluminum laminated composite plates fabricated by direct hot pressing journal August 2011
Microstructure and mechanical properties of friction spot welds of dissimilar AA5754 Al and AZ31 Mg alloys journal January 2014
Magnesium alloy ZK60 tubing made by Shear Assisted Processing and Extrusion (ShAPE) journal May 2019
Microstructure of friction stir welding of aluminium alloy to magnesium alloy journal June 2009
Cladding of Mg alloy with Al by twin-roll casting journal May 2011
The thermal cycle during the dissimilar friction spot welding of aluminum and magnesium alloy journal January 2013
Fabrication and microstructure evolution of Al/Mg bimetal using a near-net forming process journal May 2017