WorksheetsMaterials for Additive Manufacturing
Total questions: 29
Worksheet time: 58mins
How many categories are grouped the AM technologies?
5
7
8
6
Selective Laser Melting and Electron beam deposition belongs to:
Material extrusion
Powder bed fusion
Binder jetting
Material jetting
Write at least 3 advantages of AM when compared to conventional manufacturing
Which type of feedstock is used in binder jetting?
(a)
Which AM process (category) can achieve the highest surface finish and detail accuracy
(a)
Which AM category uses a laser to sinter or melt powdered material
(a)
Name one limitation of AM compared to conventional manufacturing.
What are the differences between Direct ink writing (robocasting) and Fused filament modeling (FDM)?
What file format is standard for AM?
(a)
Which process jets droplets of photopolymer
(a)
Why is post-processing needed in AM?
Which process spreads powder and binds with liquid binder
(a)
Whar are the main advantages of EBM when compared to SLM?
You are asked to make a lightweight but strong fixture for automotive assembly lines. The fixture must be durable, relatively low-cost, and easy to iterate. Would you select FDM with composite filaments (e.g., carbon-fiber reinforced) or Binder Jetting with sintered metals? Why?"
A company wants to produce customized earphones with fine details, multiple colors, and a smooth finish. Which AM technology would you recommend—Material Jetting or FDM—and what factors support your choice?
What are the main components of a resin for vat photopolymerization?
Which of the following polymers used in filaments for FDM are of engineering grade?
PLA
ABS
Nylon
PEEK
Which polymer feedstock is most commonly used in Fused Deposition Modeling?
Nylon powder
Photopolymer resin
Thermoplastic filament
Metal wire
Which property of thermoplastic filaments most affects print quality in FDM?
Electrical conductivity
Melt Flow behaviour
Optical Transparency
Magnetic permeability
Metal feedstock for Powder Bed Fusion (PBF) is typically supplied in which form?
Sheet
Wire
Powder
Pellets
Which powder characteristic is most important for metal AM processes
Color uniformity
Particle size distribution
Powder price
Powder storage container
Wire feedstock is primarily used in which metal AM process?
Binder Jetting
Material Extrusion
Vat photopolymerisation
Direct Energy Deposition
Which challenge is most commonly associated with ceramic feedstock in AM?
Low melting temperature
High shrinkage during sintering
Poor surface finish
Low material cost
Reusing metal powder in AM processes may affect:
Print color only
Particle morphology and chemistry
Machine software
Build platform temperature
Poor powder flowability can lead to:
Faster printing speeds
Improved density
Uneven layer deposition
Reduced energy consumption
In paste-based material extrusion, the feedstock is typically a mixture of solid particles and a (a) that enables flow through the nozzle.
High solid loading in ceramic or metal pastes is desirable because it reduces (a) during drying and sintering.
The ability of a paste to be extruded without clogging depends strongly on particle (a) and particle size distribution.
What post-processing steps are commonly required for ceramic or metal paste-printed parts?
