Publication

Study and simulation of different scanning strategies in SLM

Rémy Glardon, Jamasp Jhabvala, Eric Boillat
2010
Conference Papers

Abstract

In the SLM process, one has to balance between power and scan speed. When small scan speed is used, thermal gradients are important and local solidification can lead to cracks. On the other hand, when high speed is used, the power has to be huge and phenomena due to heat transfer, like delamination or balling, arise. In this paper, we study different possible scanning strategies and we point out those leading to an homogeneous heating of the part until its melting point. The results are compared to numerical simulations.

Official source

https://infoscience.epfl.ch/entities/publication/0cc42d67-2210-4742-b913-2566905d54c5

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Rémy Glardon, Jamasp Jhabvala, Eric Boillat
2010
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/0cc42d67-2210-4742-b913-2566905d54c5

About this result

Related concepts (32)

Computer simulation

Computer simulation is the process of mathematical modelling, performed on a computer, which is designed to predict the behaviour of, or the outcome of, a real-world or physical system. The reliability of some mathematical models can be determined by comparing their results to the real-world outcomes they aim to predict. Computer simulations have become a useful tool for the mathematical modeling of many natural systems in physics (computational physics), astrophysics, climatology, chemistry, biology and manufacturing, as well as human systems in economics, psychology, social science, health care and engineering.

Simulation

A simulation is the imitation of the operation of a real-world process or system over time. Simulations require the use of models; the model represents the key characteristics or behaviors of the selected system or process, whereas the simulation represents the evolution of the model over time. Often, computers are used to execute the simulation. Simulation is used in many contexts, such as simulation of technology for performance tuning or optimizing, safety engineering, testing, training, education, and video games.

Melting point

The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atmosphere or 100 kPa. When considered as the temperature of the reverse change from liquid to solid, it is referred to as the freezing point or crystallization point.

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Study and simulation of different scanning strategies in SLM

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