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RISDiscrete Phase Modeling of the Powder Flow Dynamics and the Catchment Efficiency in Laser Directed Energy Deposition With Inclined Coaxial Nozzles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Laser directed energy deposition (DED) is one of the most promising additive manufacturing processes for restoring high-value components. The damaged components can have complex free-form shapes, which necessitate depositions ...
Hybrid Analytical-Numerical Modeling of Surface Geometry Evolution and Deposition Integrity in a Multi-Track Laser-Directed Energy Deposition Process
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Modeling multitrack laser-directed energy deposition (LDED) is different from single-track deposition. There is a temporal variation in the deposition geometry and integrity in a multitrack deposition, which is not well ...
A 3D Computational Model of Nanosecond Pulsed Laser Texturing of Metals for Designing Engineered Surfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Laser surface texturing uses a pulsed laser that is scanned on the surface, wherein each pulse creates a micro-crater through material ablation. A variety of textures can be generated depending on the laser parameters and ...
Recent Advancements in Micro- and Nano-Manufacturing From WCMNM2023—Part I
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Product development activities worldwide are increasingly focusing on fabricating complex micro and nanoscale features and components, which find applications in optics, electronics, biomedical, and aerospace industries. ...
Modeling of Dynamic Instability Via Segmented Cutting Coefficients and Chatter Onset Detection in High-Speed Micromilling of Ti6Al4V
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Miniature components with complex shape can be created by micromilling with excellent form and finish. However, for difficult-to-machine materials, such as Ti-alloys, failure of low-flexural stiffness microtools is a big ...
Characterization and Modeling of Microscale Preplaced Powder Cladding Via Fiber Laser
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Laser cladding (LC) is a material deposition technique, in which a laser beam is used to deposit one or several layers of a certain clad material onto a substrate to improve its wear or corrosion resistance. It can also ...
The Effect of Martensitic Transformation on the Evolution of Residual Stresses and Identification of the Critical Linear Mass Density in Direct Laser Metal Deposition–Based Repair
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Direct laser metal deposition (DLMD) is a promising additive manufacturing technique which has a huge potential in remanufacturing and restoration of high-value dies/molds and aerospace components. The residual stresses ...
Machining Response and Damage Evolution of Amorphous Carbon Coated Tools in High-Speed Micromilling of Ti–6Al–4V
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Micromilling process is widely used to create complex 3D miniature products due to its flexibility and its ability to process difficult-to-cut material like Titanium alloys. High rotational speeds are used to overcome the ...
Recent Advancements in Micro- and Nano-Manufacturing From WCMNM2023—Part II
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Product development activities worldwide are increasingly focusing on fabricating complex micro and nanoscale features and components, which find applications in optics, electronics, biomedical, and aerospace industries. ...
A Free Interface Component Mode Synthesis Approach for Determining the Micro-End Mill Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The prediction accuracy of the stability boundary in the machining process depends upon accurate estimation of cutting tool-tip dynamics. Note that the experimental modal analysis using direct impact at miniature end mill ...