Journal of Manufacturing Science and Engineering: Recent submissions
Now showing items 2481-2500 of 7723
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Additive Manufacturing of Glass
(The American Society of Mechanical Engineers (ASME), 2014)Selective laser melting (SLM) is a technique for the additive manufacturing (AM) of metals, plastics, and even ceramics. This paper explores using SLM for depositing glass structures. A CO2 laser is used to locally melt ... -
Selective Laser Melting of Crack Free High Density M2 High Speed Steel Parts by Baseplate Preheating
(The American Society of Mechanical Engineers (ASME), 2014)Cracks and delamination, resulting from residual stresses, are a barrier in the world of additive manufacturing and selective laser melting (SLM) that prohibits the use of many metals in this field. By preheating the ... -
An Integrated Approach to Additive Manufacturing Simulations Using Physics Based, Coupled Multiscale Process Modeling
(The American Society of Mechanical Engineers (ASME), 2014)The complexity of local and dynamic thermal transformations in additive manufacturing (AM) processes makes it difficult to track in situ thermomechanical changes at different length scales within a part using experimental ... -
Microstructure Feature Recognition for Materials Using Surfacelet Based Methods for Computer Aided Design Material Integration
(The American Society of Mechanical Engineers (ASME), 2014)With the material processing freedoms of additive manufacturing (AM), the ability to characterize and control material microstructures is essential if part designers are to properly design parts. To integrate material ... -
A Direct Tool Path Planning Algorithm for Line Scanning Based Stereolithography
(The American Society of Mechanical Engineers (ASME), 2014)This paper presents a novel tool path planning approach for polygonal mirror scanning based stereolithography (STL) process. Compared with traditional laser scanning and mask projection based STL process, the polygonal ... -
Freeform Vertical and Horizontal Fabrication of Alginate Based Vascular Like Tubular Constructs Using Inkjetting
(The American Society of Mechanical Engineers (ASME), 2014)Organ printing, among different tissue engineering innovations, is a freeform fabrication approach for making threedimensional (3D) tissue and organ constructs using cellular spheroids or bioinks as building blocks. The ... -
Bioprinting Technology: A Current State of the Art Review
(The American Society of Mechanical Engineers (ASME), 2014)Bioprinting is an emerging technology for constructing and fabricating artificial tissue and organ constructs. This technology surpasses the traditional scaffold fabrication approach in tissue engineering (TE). Currently, ... -
On Process Temperature in Powder Bed Electron Beam Additive Manufacturing: Model Development and Validation
(The American Society of Mechanical Engineers (ASME), 2014)Powderbed beambased metal additive manufacturing (AM) such as electron beam additive manufacturing (EBAM) has a potential to offer innovative solutions to many challenges and difficulties faced in the manufacturing industry. ... -
Increasing Part Accuracy in Additive Manufacturing Processes Using a k d Tree Based Clustered Adaptive Layering
(The American Society of Mechanical Engineers (ASME), 2014)Additive manufacturing (AM) is widely used in aerospace, automobile, and medical industries for building highly accurate parts using a layer by layer approach. The stereolithography (STL) file is the standard file format ... -
On Process Temperature in Powder Bed Electron Beam Additive Manufacturing: Process Parameter Effects
(The American Society of Mechanical Engineers (ASME), 2014)Build part certification has been one of the primary roadblocks for effective usage and broader applications of metal additive manufacturing (AM) technologies including powderbed electron beam additive manufacturing (EBAM). ... -
Multiple Material Topology Optimization of Compliant Mechanisms Created Via PolyJet Three Dimensional Printing
(The American Society of Mechanical Engineers (ASME), 2014)Compliant mechanisms are able to transfer motion, force, and energy using a monolithic structure without discrete hinge elements. The geometric design freedoms and multimaterial capability offered by the PolyJet 3D printing ... -
Optimization of Scan Strategies in Selective Laser Melting of Aluminum Parts With Downfacing Areas
(The American Society of Mechanical Engineers (ASME), 2014)Selective laser melting (SLM) is an additive manufacturing technique in which metal products are manufactured in a layerbylayer manner. One of the main advantages of SLM is the large geometrical design freedom. Because of ... -
Development of Freeze Form Extrusion Fabrication With Use of Sacrificial Material
(The American Society of Mechanical Engineers (ASME), 2014)The development of freezeform extrusion fabrication (FEF) process to fabricate threedimensional (3D) ceramic parts with use of sacrificial material to build support sections during the fabrication process is presented in ... -
A Hybrid Bioprinting Approach for Scale Up Tissue Fabrication
(The American Society of Mechanical Engineers (ASME), 2014)Tissue engineering has been focused on the fabrication of vascularized 3D tissue for decades. Most recently, bioprinting, especially tissue and organ printing, has shown great potential to enable automated roboticbased ... -
Design and Manufacture of Injection Mold Inserts Using Electron Beam Melting
(The American Society of Mechanical Engineers (ASME), 2014)The capability of producing injection tool inserts using an additive manufacturing (AM) technology was investigated. Using electron beam melting (EBM), the restriction of drilling straight cooling channels could be eliminated ... -
Development and Modeling of Melt Electrohydrodynamic Jet Printing of Phase Change Inks for High Resolution Additive Manufacturing
(The American Society of Mechanical Engineers (ASME), 2014)This paper presents the development and modeling a highresolution electrohydrodynamicjet (EHDjet) printing process using phasechange ink (i.e., wax), which is capable of producing sub10 خ¼m footprints (sub10 fL in volume) ... -
Surface Topography of Additive Manufacturing Parts Using a Finite Difference Approach
(The American Society of Mechanical Engineers (ASME), 2014)Inspection of surface integrity in additive manufacturing (AM) parts essentially needs a detailed understanding of their actual surface topography. Today's optical surface topography and roughness measurement sensors only ... -
Statistical Predictive Modeling and Compensation of Geometric Deviations of Three Dimensional Printed Products
(The American Society of Mechanical Engineers (ASME), 2014)Geometric fidelity of 3D printed products is critical for additive manufacturing (AM) to be a direct manufacturing technology. Shape deviations of AM built products can be attributed to multiple variation sources such as ... -
Thermomechanical Modeling of Additive Manufacturing Large Parts
(The American Society of Mechanical Engineers (ASME), 2014)A finite element modeling strategy is developed to allow for the prediction of distortion accumulation in additive manufacturing (AM) large parts (on the order of meters). A 3D thermoelastoplastic analysis is performed ... -
Three Dimensional Temperature Gradient Mechanism in Selective Laser Melting of Ti 6Al 4V
(The American Society of Mechanical Engineers (ASME), 2014)Selective laser melting (SLM) is widely used in making threedimensional functional parts layer by layer. Temperature magnitude and history during SLM directly determine the molten pool dimensions and surface integrity. ...