Vincent Demers
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View article: Effect of Temperature, Heating Rate, and Cooling Rate on Bonding and Nitriding of AlSi10Mg Powder Occurring During Supersolidus Liquid-Phase Sintering
Effect of Temperature, Heating Rate, and Cooling Rate on Bonding and Nitriding of AlSi10Mg Powder Occurring During Supersolidus Liquid-Phase Sintering Open
This study investigated the effect of supersolidus liquid-phase sintering conditions on the powder particle bonding and the AlN-phase formation of an AlSi10Mg alloy. Sintering was conducted at temperatures between 550 and 579 °C, with a ho…
View article: Numerical Simulation and Experimental Study of the Thermal Wick-Debinding Used in Low-Pressure Powder Injection Molding
Numerical Simulation and Experimental Study of the Thermal Wick-Debinding Used in Low-Pressure Powder Injection Molding Open
Thermal wick-debinding, commonly used in low-pressure injection molding, remains challenging due to complex interactions between binder transport, capillary forces, and thermal effects. This study presents a numerical simulation of binder …
View article: MEDITRON: Open Medical Foundation Models Adapted for Clinical Practice
MEDITRON: Open Medical Foundation Models Adapted for Clinical Practice Open
Large language and multimodal models (LLMs and LMMs) will transform access to medical knowledge and clinical decision support. However, the current leading systems fall short of this promise, as they are either limited in scale, which rest…
View article: Injection Flow Rate Threshold Preventing Atypical In-Cavity Pressure during Low-Pressure Powder Injection Molding
Injection Flow Rate Threshold Preventing Atypical In-Cavity Pressure during Low-Pressure Powder Injection Molding Open
Controlling injection parameters is paramount when it comes to producing high-quality green parts using powder injection molding. This work combines experimental and numerical approaches to study the impact of injection parameters on mold …
View article: Injection Flow Rate Threshold Preventing Atypical In-Cavity Pressure during Low-Pressure Powder Injection Molding
Injection Flow Rate Threshold Preventing Atypical In-Cavity Pressure during Low-Pressure Powder Injection Molding Open
Controlling injection parameters is paramount when it comes to producing high-quality green parts using powder injection molding. This work combines experimental and numerical approaches to study the impact of injection parameters on mold …
View article: Smoothed Particle Hydrodynamics Approach for Simulation of Non-Newtonian Flow of Feedstocks Used in Powder Injection Molding
Smoothed Particle Hydrodynamics Approach for Simulation of Non-Newtonian Flow of Feedstocks Used in Powder Injection Molding Open
The present work aims to explore the ability to simulate flow patterns and the velocity field in the powder injection molding (PIM) process using the smoothed particle hydrodynamics (SPH) method. Numerical simulations were performed using …
View article: Contrasting the mechanical and metallurgical properties of laser welded and gas tungsten arc welded S500MC steel
Contrasting the mechanical and metallurgical properties of laser welded and gas tungsten arc welded S500MC steel Open
S500MC steel is a grade of high-strength low-alloy steel (HSLA) which is widely used in the automotive industry and for agricultural machinery and equipment. Considering properties of this alloy, selection of the welding process and parame…
View article: Surface Properties of Molds for Powder Injection Molding and Their Effect on Feedstock Moldability and Mold Adhesion
Surface Properties of Molds for Powder Injection Molding and Their Effect on Feedstock Moldability and Mold Adhesion Open
The surface energy of various mold materials for low-pressure powder injection molding was evaluated using values of contact angles (Owens-Wendt method), and correlated with the feedstock moldability and mold adhesion. The surface tension …
View article: Effect of Thermal Debinding Conditions on the Sintered Density of Low-Pressure Powder Injection Molded Iron Parts
Effect of Thermal Debinding Conditions on the Sintered Density of Low-Pressure Powder Injection Molded Iron Parts Open
Low-pressure powder injection molding (LPIM) is a cost-effective technology for producing intricate small metal parts at high, medium, and low production volumes in applications which, to date, have involved ceramics or spherical metal pow…
View article: Molding Properties Of Cobalt-Chrome-Based Feedstocks Used In Low-Pressure Powder Injection Molding
Molding Properties Of Cobalt-Chrome-Based Feedstocks Used In Low-Pressure Powder Injection Molding Open
Low-pressure powder injection molding is an emerging technology for cost-effectively producing complex shape metallic parts with the proper dimensional tolerances, either in high or in low production volumes. In this study, the molding pro…
View article: Molding Properties of Inconel 718 Feedstocks Used in Low-Pressure Powder Injection Molding
Molding Properties of Inconel 718 Feedstocks Used in Low-Pressure Powder Injection Molding Open
The impact of binders and temperature on the rheological properties of feedstocks used in low-pressure powder injection molding was investigated. Experiments were conducted on different feedstock formulations obtained by mixing Inconel 718…