Increasingly, Solid Freeform Fabrication (SFF) processes are being considered for creating functional parts. In such applications, SFF can either be used for creating tooling (i.e., patterns for casting, low volume molds, etc.) or directly creating the functional part itself. In order to create defect free functional parts, it is extremely important to fabricate the parts within allowable dimensional and geometric tolerances. This paper describes a systematic approach to analyzing manufacturability of parts produced using SFF processes with flatness tolerance requirements on the planar faces of the part. Our research is expected to help SFF designers and process providers in the following ways. By evaluating design tolerances against a given process capability, it will help designers in eliminating manufacturing problems and selecting the right SFF process for the given design. It will help process providers in selecting a build direction that can meet all design tolerance requirements.
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March 2001
Technical Papers
Manufacturability Analysis of Flatness Tolerances in Solid Freeform Fabrication
Ramakrishna Arni,
Ramakrishna Arni
Mechanical Engineering Department and Institute for Systems Research, University of Maryland, College Park, MD 20742
Email: arnirk@eng.umd.edu
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S. K. Gupta
S. K. Gupta
Mechanical Engineering Department and Institute for Systems Research, University of Maryland, College Park, MD 20742
Email: skgupta@eng.umd.edu
Search for other works by this author on:
Ramakrishna Arni
Email: arnirk@eng.umd.edu
Mechanical Engineering Department and Institute for Systems Research, University of Maryland, College Park, MD 20742
S. K. Gupta
Email: skgupta@eng.umd.edu
Mechanical Engineering Department and Institute for Systems Research, University of Maryland, College Park, MD 20742
Contributed by the General and Machine Element Design Committee for publication in the JOURNAL OF MECHANICAL DESIGN. Manuscript received Sept. 1999. Associate Editor: J. M. Vance.
J. Mech. Des. Mar 2001, 123(1): 148-156 (9 pages)
Published Online: September 1, 1999
Article history
Received:
September 1, 1999
Citation
Arni, R., and Gupta, S. K. (September 1, 1999). "Manufacturability Analysis of Flatness Tolerances in Solid Freeform Fabrication ." ASME. J. Mech. Des. March 2001; 123(1): 148–156. https://doi.org/10.1115/1.1326439
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