4. Materials and Manufacturing
Additive Manufacturing — Quiz
Test your understanding of additive manufacturing with 5 practice questions.
Practice Questions
Question 1
Which property of a thermoplastic filament most directly affects interlayer adhesion strength in FDM printing?
Question 2
In metal powder bed fusion, why is an inert gas atmosphere (e.g., argon) maintained during printing?
Question 3
A laser powder bed fusion process uses power $P=250\,\mathrm{W}$, scan speed $v=1250\,\mathrm{mm/s}$, hatch spacing $h=0.12\,\mathrm{mm}$, and layer thickness $t=0.04\,\mathrm{mm}$. Calculate the volumetric energy density $E=\frac{P}{vht}$ in J/mm^3.
Question 4
In SLA (stereolithography) 3D printing, the XY resolution is primarily determined by:
Question 5
Which post-processing step is most effective for reducing residual stresses in nylon parts produced by SLS?