In hybrid laser–MIG keyhole welding, anti-crack elements can be added into the weld pool through a filler metal in anticipation of compensating mass loss, preventing porosity formation and improving compositional and mechanical properties of the welds. Understanding the mixing and diffusion of the filler metal in the molten pool is vital to achieve these desired objectives. In this study, mathe...

In this study, thermo-mechanical simulation was conducted to predict thermal and stress behavior in Selective Laser Melting (SLM). Temperature-dependent material properties for processed 304L stainless steel were incorporated into the model order capture change from powder fully dense solid steel. Temperature history tracked under conditions of different parameter sets which designed reduce def...

In order to capitalize on the cost-effectiveness of additive manufacturing (AM), it is critical understand how build components with consistency and high quality. Directed energy deposition (DED) an AM method for creating parts layer by through use a moving heat source powder material inserted into melt pool generated substrate. DED, like most processes, highly complex due rapid thermal gradien...

• Pioneer work with large-scale naturally separated simulant material at high temperature. The turbulent flow pattern in the upper layer is influenced by boundary cooling. interlayer crust behavior reacts strongly on condition. Heat flux focusing only exists under week cooling boundary. influence of Pr number heat transfer discussed. 2D geometry effect In-Vessel Melt Retention (IVR) credited as...

The BubR1/Bub3 complex is an important regulator of chromosome segregation as it facilitates proper kinetochore-microtubule interactions and is also an essential component of the spindle assembly checkpoint (SAC). Whether BubR1/Bub3 localization to kinetochores in human cells stimulates SAC signalling or only contributes to kinetochore-microtubule interactions is debated. Here we show that two ...

Selective Laser Sintering (SLS) and Selective Laser Melting (SLM) are parent layer manufacturing processes that allow generating complex 3D parts by consolidating layers of powder material on top of each other. Consolidation is obtained by processing the selected areas using the thermal energy supplied by a focused laser beam. In SLS partial fusion of powder particles takes place, followed by a...