Powder Bed fusion

Which of the following is not one of the important features of PBF?

• Powder Fusion Method

• Powder Handling System

• Thermal Sources

• Nozzle size

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Which of the following printer able to 3D print metal parts?

• SLS

• SLM

• EBM

• All the above

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Which type of thermoplastic has more crystal structure?

• Amorphous

• Semi-crystaline

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What is the common name of polyamide?

• Nylon

• Polystyrene

• Teflon

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Which of the following cannot be identify from Differential Scanning Calorimetry (DSC) for PBF application?

• Boiling point

• Melting point

• Crystalization/Solidification

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Which of the PBF is used for high-value metallic parts?

• Electron Beam Melting (EBM)

• Selective Laser Melting (SLM)

• Selective Laser Sintering (SLS)

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Solid-state sintering is suitable for printing of pure metalic powder

• True

• False

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What is the powder fusion mechanism that utilized distinc binder and structure materials?

• Solid state sintering

• Chemical induced binding

• Full Melting

• Liquid phase sintering

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Which of the liquid-phase melting mechanisms can produce higher-density green parts?

• Composite particles

• Separate particles

• Coated particles

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Why sintering is important for PBF?

• Increase printing speed

• Reduce the density of the build parts

• Increase porosity of the build parts

• All the above

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