ISSN:
1662-9752
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:
Cone spinning is an advanced but complex metal forming process under coupled effectsof multi-factors. Understanding the deformation mechanism, i.e., the stresses, strains, and metalflow in the deformation zone during the process is of great significance for optimizing the spinningprocess and controlling the product quality. In this paper, based on ABAQUS/Explicit, a reasonableFEM model for cone spinning with a single roller has been established, and the features of stress,strain and wall thickness during the process have been obtained. The results show the following: (1)In the beginning, large stress, large strain and the acute thinning of wall thickness localize at thesmall region below the roller, then the region extends into a small ring, further it becomes a largering, and finally the ring will become uneven if the wrinkling occurs in the flange. (2) Afterspinning, the acute thinning region locates at the midst of the wall near the bottom of the workpiece.(3) At earlier stage of cone spinning, as a result of the acute thinning of wall thickness in the wallzone, the unevenness of wall thickness increases sharply to a value, then it almost keeps the value atthe stable stage, and finally it will slowly increase again if the wrinkling appears in the flange. Theresults are helpful for determination and optimization of process parameters of cone spinning
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.532-533.149.pdf
