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Investigation into Freeform Fabrication of Multi-Material Parts by 3D Welding and Milling Process

Published online by Cambridge University Press:  10 February 2011

Yong-Ak Song  and
Sehyung Park
Yong-Ak Song
Affiliation:
Korea Institute of Science and Technology KIST, CAD/CAM Research Center P.O.Box 131, Cheongryang, Seoul, Korea, yongak@kist.re.kr
Sehyung Park
Affiliation:
Korea Institute of Science and Technology KIST, CAD/CAM Research Center P.O.Box 131, Cheongryang, Seoul, Korea, yongak@kist.re.kr
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Abstract

Solid Freeform Fabrication (SFF) gives engineers a new freedom to build parts which have proved impossible to manufacture using conventional techniques. However, the surface finish nd accuracy of SFF parts are still lower than those of parts which have been machined in conventional operations. A process combination of additive and subtractive techniques is currently being developed in order to overcome this problem. The hybrid approach called “3D Welding and Milling” uses welding as an additive and conventional milling as a subtractive technique, thereby exploiting the advantages of both processes. In this paper, the attempt was made to build multi-material parts, especially molds, by using two different deposition strategies. The results show that it is a feasible approach to build multi-material metal parts directly.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 625: Symposium Y – Solid Freeform & Additive Fabrication – 2000 , 2000 , 37
Copyright
Copyright © Materials Research Society 2000

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