Electronic Resource
s.l. ; Stafa-Zurich, Switzerland
Solid state phenomena
Vol. 141-143 (July 2008), p. 243-248
ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Isothermal semi-solid extrusion experiments using steel grade X210CrW12 as work materialwere performed on an industrial forging machine. An improved and up-scaled tool design wasapplied, based on the concept of self-heating ceramic dies tested in previous laboratory-scale studiesand allowing for die preheating temperatures of up to 1400°C.Steel rods of complex cross sectional geometry were formed at low extrusion forces. Shape accuracyof as-formed rods is accurate and metallurgical examination yields no evidence of liquid phaseseparation. With a view on the intended industrial implementation construction of ceramic tools hasto be improved in order to avoid rupture of ceramic parts due to thermo-mechanically induced stressesand to benefit from the advantages inherent to ceramics in metal forming
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.141-143.243.pdf
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