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:
Stereolithography is a rapid manufacturing process that builds objects layer-by-layerbased on the photo polymerization of a liquid resin. Due to the good geometric precision, thisprocess has been used in Rapid Tooling for injection moulding. These tools are suitable for theproduction of short runs of parts and prototypes, where without resorting to the manufacture of aconventional metallic mould. The mechanical and thermal properties of the stereolitography resins,used in the manufacture of hybrid moulds, differ substantially from those of the conventionalmetallic materials. Particularly they must be known for guaranteeing the structural integrity and thethermal performance of the mould. Also the chemistry behaviour of the resin in contact with thepolymer is important when tribological aspects are involved, especially during the ejection of themoulding.In this work, the behaviour of hybrid moulds with SL Vantico 5260 resin moulding cores wasassessed. Several thermoplastics (iPP, ABS, PET and PA 6.6) were moulded, and their mechanical,thermal and chemical properties considered and related to the performance of the moulding process.Also, the friction properties of the SL resin in contact with the moulded thermoplastic in mouldingconditions were observed and considered in the context of the performance of hybrid moulds
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/12/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.514-516.1673.pdf
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