1999 / Solid Freeform Fabrication Proceedings
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Author Dan Qiu, Noshir A. Langrana, Stephen C. Danforth, Ahmad Safari, Mohsen Jafari, Rutgers - The State University of New Jersey
Source Solid Freeform Fabrication Proceedings, 1999, pp 519-528
Abstract At Rutgers University, in an ONR funded MURI program, we've built the hardware and developed the corresponding advanced computer software for multi- material layered manufacturing. Based on our ongoing research, we determined that the build characteristic is heavily dependent on the material being used. This has direct implications on toolpath creation. Therefore, it is important to develop the hardware/software that will accommodate this requirement. In recent past, we have developed CAD models and their .stl files using commercially available software such as I-DEAS and ProE. Using this information, the slice file is generated in QuickSlice. To fabricate high quality part's, to have better control on the toolpath in relation to the materials and to make the development generic yet compatible with our hardware, we are developing an in house intelligent toolpath generation system. This new development includes the issues such as multiple fill-toolpaths for the same material, deposited road characteristics, the interface mismatch between adjacent materials and the intelligent toolpath features needed for machine control. After the component toolpath file generated by the in house toolpath software, our multi-material build file algorithm, systematically, layer by layer, integrates all component toolpaths into one multi-material toolpath. The existing virtual graphical simulation as well as well selected part fabrication experiments are being used to validate the current development. The development is kept modular and it is developed with the intention to be used for the majority of Layered Manufacturing systems. (Auth abstract) [References: 11]
Solid Freeform Fabrication Proceedings can be obtained from: The Solid Freeform Fabrication Symposium
or contact:
The University of Texas at Austin
Laboratory for Freeform Fabrication / Texas Materials Institute
Mechanical Engineering Dept.
c/o The Solid Freeform Fabrication Symposium
MC C2200
Austin, TX 78712-1063 USA
512-471-3026; 512-471-7681 FX; Email: sffsymp@uts.cc.utexas.edu