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RISInvestigation of Interface Agent for Investment Casting With Ice Patterns
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Investment casting with ice patterns is similar to that with wax patterns but with significant process differences. A major difference in our developed method is that an interface agent needs ...
Surface Reconstruction Using Dexel Data From Three Sets of Orthogonal Rays
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Triple-dexel modeling is a geometric representation method, which depicts the intersection of a solid with rays cast in three orthogonal directions. Due to its fast Boolean operations, simple ...
Finite Element Analysis of Solidification in Rapid Freeze Prototyping
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Rapid freeze prototyping (RFP) can generate three-dimensional ice patterns from computer-aided design (CAD) models by depositing and solidifying water droplets layer by layer. One important issue ...
Mapping of Kinematic and Dynamic Parameters for Coupled Manipulators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Industrial manipulators use various types of transmissions, such as gears, belts, chains, and parallel mechanisms, to transmit driving power to the links. By arrangement many such transmissions ...
Predictive Modeling and Experimental Verification of Temperature and Concentration in Rapid Freeze Prototyping With Support Material
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Rapid freeze prototyping is a solid freeform fabrication method that uses water freezing into ice as the build material. Each layer of geometry is deposited and allowed to freeze before the ...
Modeling and Performance Analysis of a Flexible PCB Assembly Station Using Petri Nets
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents Petri net modeling and performance analysis of a flexible workstation for automatic assembly of printed circuit boards. Concentrating on the operational aspects, we construct ...
Parts Mating Aided by Constant-Amplitude Sinusoidal Motions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an analytical and experimental investigation of engagement of parts aided by two orthogonal constant-amplitude sinusoidal motions in mechanical assembly. In the analytical ...
Anti-Windup Control of Second-Order Plants With Saturation Nonlinearity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: All real-world control systems have saturation nonlinearity in final control elements (including actuators). When controllers involve integral action, reset windup can cause instability as well as ...
Adaptive Extrusion Force Control of Freeze-Form Extrusion Fabrication Processes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Freeze-form extrusion fabrication is an additive manufacturing process that extrudes high solids loading aqueous ceramic pastes in a layer-by-layer fashion below the paste freezing temperature for ...
A Novel Contour Generation Algorithm for Surface Reconstruction From Dexel Data
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a method of reconstructing a triangular surface patch from dexel data generated by ray casting to represent solid models for applications, such as virtual sculpting and ...