Question

sls: layer adhesion
use the information below to answer the questions.
sls printing has excellent layer adhesion. it is a good option for prototyping and production of injection mold applications. it also has good chemical resistance.
hybrid material
sls creates parts with good tensile strength and mechanical properties. occasionally, carbon or glass fiber is introduced into the build. this can change the material properties of the form. portions of a form that contain additives become stronger in tension and weaker in compression.
porous material
printed parts for sls are about 10% porous, which can make them brittle in some cases. however, this characteristic also means the material can absorb dye, similar to the way a sponge might absorb water. when coloring a form, it is generally done during the post - processing stage.
possible failures
it is important to be aware of any issues that may occur during an sls build. a commonly known problem is called delamination. this is when there aren’t enough light or heat. delamination often occurs when the laser is underpowered, or something is obstructing the light getting to the powder bed. for instance, the mirror might be cloudy, or there might be a smudge on the lens.
what are sls prints able to do because of their porous characteristics?

• generate light
• conduct electricity
• change shape
• absorb dye

Explanation:

To answer the question, we refer to the "Porous Material" section of the text. It states that "Printed parts for SLS are about 10% porous... this characteristic also means the material can absorb dye, similar to the way a sponge might absorb water." The other options (generate light, conduct electricity, change shape) are not mentioned as being related to the porous characteristics of SLS prints.

Answer:

absorb dye