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Direct Materials Deposition: Designed Macro and Microstructure

Published online by Cambridge University Press:  10 February 2011

J. Mazumder ,
A. Schifferer  and
J. Choi
J. Mazumder
Affiliation:
Center for Laser Aided Intelligent Manufacturing, University of Michigan, Ann Arbor, MI 48109-2125
A. Schifferer
Affiliation:
Center for Laser Aided Intelligent Manufacturing, University of Michigan, Ann Arbor, MI 48109-2125
J. Choi
Affiliation:
Center for Laser Aided Intelligent Manufacturing, University of Michigan, Ann Arbor, MI 48109-2125
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Abstract

Rapid Fabrication of three-dimensional shapes of engineering materials such as H 13 tool steel and Nickel super alloys are now possible using Direct Materials Deposition (DMD) technique. H 13 tool steel is one of the difficult alloys for deposition due to residual stress accumulation from martensitic transformation. However, it is the material of choice for the die and tool industry. DMD offers Copper chill blocks and water cooling channels as the integral part of the tool. On the other hand ZrO2 was co-deposited with nickel superalloys using DMD. This process thus is amenable to produce both macro and microstructure to a designed specification. This paper briefly reviews the state of the art of DMD and describes the microstructure and mechanical properties of selected engineering alloy systems deposited by DMD.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 542: Symposium V – Solid Freeform and Additive Fabrication , 1998 , 51
Copyright
Copyright © Materials Research Society 1999

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