Question

sls: materials
use the information below to answer the question
when deciding what materials are suitable for selective laser sintering, you want a material that has good thermal resistance.
types of materials
nylon is a polyamide (thermoplastic), which can be re - melted. these properties make nylon a good choice of material for the sls process.
pa 12 nylon has good strength, cost - effectiveness, and chemical resistance. it has a matte, rough surface.
alumide has a dull gray metallic appearance and good temperature resistance.
pa - gf is a glass - filled nylon that has a good strength - to - weight ratio, and good wear resistance.
characteristics of pa 12
pa 12 has good characteristics that make it good for a range of applications. mechanically, it has good impact resistance and good moisture resistance. it also has good chemical resistance along with good heat resistance. the mechanical properties of pa 12 can be further enhanced with the addition of carbon, glass, or aluminum to increase the tensile strength.
parameters of pa 12
which of the following sls materials has a dull gray metallic appearance and good temperature resistance?
alumide
pa - gf nylon
resin
pa 12 nylon

Explanation:

The text states that alumide has a dull gray metallic appearance and good temperature resistance.

Answer:

alumide