ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
In this paper, thixoforging of a magazine plate made of AZ91D magnesium alloy wereinvestigated by means of numerical simulation and experiments. Numerical simulation results showthat with increasing punch displacement, local bending, formation of a concave shell part and bulkplastic deformation occurs in billet continuously. Equivalent strain and stress increase and thetemperature of the semi-solid billet decreases. When the temperature of the semi-solid billet or thedie temperature is elevated, equivalent stain and stress decrease. Optimal technological parameterssuch as a billet temperature of 545°C, die temperature of 450°C and punch velocity of 15 mm/swere obtained by numerical simulation. Experimental results demonstrate that magazine plates withhigh mechanical properties such as tensile strength of 316.8 MPa, yield strength of 228.3 MPa andelongation of 12.6 % can be manufactured successfully when the optimal technological parametersselected according to the results of numerical simulation are applied
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.141-143.623.pdf
