ISSN:
1013-9826
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:
A multi-stage stamping process of one-piece automobile steel wheels from tubes wasdeveloped to decrease the loss of material for the blanking. In this process, the tube is nosed into acup with a central hole, and then the taper bottom and side wall of the cup are formed into disk andrim portions of the wheel, respectively. The tube is produced by bending a rectangular sheet into atube and by welding both edges of the bent sheet to prevent the loss of material for the blanking.The stamping sequence of the one-piece wheels was designed by finite element simulation. Thecentral hole of the cup was decreased to a desired diameter of the hub hole without buckling andwrinkling by a 5-stages nosing operation. The taper bottom of the cup was reversely drawn, andthen was flared without folding by 2 stages. The wall thickness of the formed wheel was thick andthin in the disk and rim portions, receptively, and thus the requirement of strength of wheels issatisfied. A one-piece wheel having a hub hole was successfully formed by the designed sequencein a miniature experiment
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.344.427.pdf
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