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Article
Effect of the Cooling Capability Difference Between Additively Manufactured Sand Molds on Shrinkage Defect in A356 Alloy Castings
Three-dimensional sand mold printing is a novel manufacturing method that can produce complicated shapes based on a 3D CAD model. Various types of material systems can be employed to produce 3D-printed sand mo...
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Article
Particle method simulation of direct-chill casting process including breakout
A direct-chill (DC) casting simulation model was developed and applied to the authors' particle method simulation to enable three-dimensional thermo-fluid and solidification simulation of DC casting processing...
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Article
A Combined Experimental–Numerical Method for Determining the Heat Transfer Coefficient at a Fluid Flowing Molten Copper–Casting Mold Interface
Ascertaining the heat transfer coefficient (HTC) at the interface between molten copper alloy in a fluid flow state and a casting mold is more difficult than merely determining the coefficient in a cooling sta...
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Article
Thermo-fluid simulation using particle method based on hand-pouring motion in casting process
Casting simulators are widely used to evaluate casting designs. However, most simulators using conventional methods such as FDM or FEM entail difficulty in evaluating casting designs sufficiently based on ladl...
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Article
Measuring hand-pouring motion in casting process using augmented reality marker tracking
Elucidations of workers’ pouring motions and the resultant inflow behavior of molten alloy into the mold are important because the inflow behavior is well known to affect casting quality. Nevertheless, few rep...
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Article
Particle Method Simulation for Formation and Flow of Cold Flakes in High-Pressure Die Casting
In high-pressure die casting (HPDC) processing of aluminum alloys, solidified layers generated in the sleeve of a die casting machine that flow into the mold cavity are known as “cold flakes.” The prediction a...
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Chapter and Conference Paper
Wall Similarity in Turbulent Boundary Layers Subjected to Weak Pressure Gradients
In this study, the effects of adverse and favorable pressure gradients on the law of the wall were investigated experimentally in turbulent boundary layers. The divergence and convergence of the mean streamlin...
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Chapter and Conference Paper
A Distributed Production Control System on a Component-Based Software Development and Operation Framework
Systematization and digitisation of manufacturing processes by introducing information technology (IT) tools is regarded as a key approach for increasing manufacturing companies’ competitiveness. In order to s...
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Chapter
Constraint Representation and Reduction based on Lie Algebra in Assembly Model
In assembly modelling, it is necessary to capture the relative positions of components in the assembly. Many such problems concern constraint representation and its manipulation such as constraint reduction. T...
