ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Electromagnetic compression of tubular profiles with high electrical conductivity is aninnovative joining process for lightweight structures. The components are joint using pulsedmagnetic fields which apply radial pressures of up to 200 MPa to tubular work pieces causing asymmetric reduction of the diameter with typical strain rates of about 104 sec-1. Since there is nocontact between the components to be joined and the joining machine, any damage of component’ssurface can be avoided. Friction stir welding (FSW) is a relatively new solid state joining techniqueand has been extensively developed for aluminum, magnesium, copper and titanium alloys as wellas steels. The primal advantages of the process in comparison to conventional fusion welding arebetter mechanical properties, low residual stresses and distortion, and reduced occurrence of defects.In the present article, the influence of process and material parameters on the joint’s characteristics,material’s microstructure and the mechanical properties of electromagnetic compressed joints andfriction stir welds using reinforced aluminum profiles is analyzed. The strength of the joint isdetermined by tensile tests. Finally, possible improvements of both techniques are outlined
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.43.47.pdf
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