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:
The conventional method of bending the large crankthrow was investigated by computersimulation combined with manufacturing trial, and the typical forging defects, such as constrictedwaist, folded cracks and horn mouth on forged blank were analyzed. On the basis of these results, anovel forging shape of preformed blank was proposed using anti-transformation method bycomputer simulation. The FEM simulated results show that all the above defects can be avoided bycarrying out the novel method, furthermore, the maximum resistance of the novel bendingdeformation was reduced to 72% of conventional process, and the weight of forging blank can bedecreased by 15%. Finally, the optimum forging shape was applied to the actual process, thesimulation results were confirmed by manufacturing trial, and qualified forged piece was gained.The FEM model established can be used for further optimization of other types of crankthrow
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.1949.pdf
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