An Investigation of Key Design for Additive Manufacturing Constraints in Multimaterial Three-Dimensional Printing

The PolyJet material jetting process is uniquely qualified to create complex, multimaterial structures. However, key manufacturing constraints need to be explored and understood in order to guide designers in their use of the PolyJet process including (1) minimum manufacturable feature size, (2) removal of support material, (3) survivability of small features, and (4) the self-supporting angle in the absence of support material. The authors use a design of experiments (DOE) approach to identify the statistical significance of geometric and process parameters and to quantify the relationship between these significant parameters and part manufacturability. The results from this study include the identification of key variables, relationships, and quantitative design thresholds necessary to establish a preliminary set of design for additive manufacturing (DfAM) guidelines for material jetting. Experimental design studies such as the one in this paper are crucial to provide designers with the knowledge to ensure that their proposed designs are manufacturable with the PolyJet process, whether designed manually or by an automated method, such as topology optimization (TO).

[1]  Carolyn Conner Seepersad,et al.  A designer's guide for dimensioning and tolerancing SLS parts , 2012 .

[2]  Jean-Yves Hascoët,et al.  From functional specifications to optimized CAD model: Proposition of a new DFAM methodology , 2011 .

[3]  Lothar Harzheim,et al.  A review of optimization of cast parts using topology optimization , 2005 .

[4]  Christopher B. Williams,et al.  Fatigue Characterization of 3D Printed Elastomer Material , 2012 .

[5]  Adedeji Aremu,et al.  The effects of bidirectional evolutionary structural optimization parameters on an industrial designed component for additive manufacture , 2013 .

[6]  Rupinder Singh,et al.  Process capability study of polyjet printing for plastic components , 2011 .

[7]  R. Paggi,et al.  Thermal and dynamic-mechanical behavior of Fullcure 3D Printing Resin post-cured by different methods , 2011 .

[8]  Frédéric Vignat,et al.  Designing for Additive Manufacturing , 2012 .

[9]  Razvan Udroiu,et al.  Experimental determination of surface roughness of parts obtained by rapid prototyping , 2009 .

[10]  Pero Raos,et al.  Experimental analysis of properties of materials for rapid prototyping , 2009 .

[11]  O. Sigmund,et al.  Robust topology optimization accounting for spatially varying manufacturing errors , 2011 .

[12]  M A. Donmez,et al.  Proposal for a standardized test artifact for additive manufacturing machines and processes | NIST , 2012 .

[13]  M A. Donmez,et al.  A Review of Test Artifacts for Additive Manufacturing , 2012 .

[14]  Gi Dae Kim,et al.  A benchmark study on rapid prototyping processes and machines: Quantitative comparisons of mechanical properties, accuracy, roughness, speed, and material cost , 2008 .

[15]  Christopher B. Williams,et al.  Multiple-Material Topology Optimization of Compliant Mechanisms Created Via PolyJet Three-Dimensional Printing , 2014 .

[16]  Frédéric Vignat,et al.  Identification on Some Design Key Parameters for Additive Manufacturing: Application on Electron Beam Melting , 2013 .

[17]  Jean-Yves Hascoët,et al.  A novel methodology of design for Additive Manufacturing applied to Additive Laser Manufacturing process , 2014 .

[18]  Lothar Harzheim,et al.  A review of optimization of cast parts using topology optimization , 2005 .

[19]  Rupinder Singh,et al.  Experimental Investigations for Rapid Moulding Solution of Plastics Using Polyjet Printing , 2011 .

[20]  Anisor Nedelcu,et al.  Optimization of Additive Manufacturing Processes Focused on 3D Printing , 2011 .

[21]  James K. Guest,et al.  Achieving minimum length scale in topology optimization using nodal design variables and projection functions , 2004 .

[22]  David W. Rosen,et al.  Computer-Aided Design for Additive Manufacturing of Cellular Structures , 2007 .

[23]  Richard J.M. Hague,et al.  Exploiting the design freedom of RM , 2006 .

[24]  Ian Gibson,et al.  Design rules for additive manufacture , 2010 .

[25]  David W. Rosen,et al.  A comparison of synthesis methods for cellular structures with application to additive manufacturing , 2010 .

[26]  Eujin Pei,et al.  Development of a design feature database to support design for additive manufacturing , 2012 .