Question

sls: comparison with injection molding
use the information below to answer the question.
injection molding is a process whereby nylon beads are melted and injected into a
mold. this process is used to make large production runs of an item when a thousand
or more are needed. creating the mold takes time and money. if a few hundred items
are needed, sls might be an option, depending on the strength and nature of the
item. sls wont have the same mechanical properties as injection molding, however.
sls advantages

• sls is faster than injection molding.
• the start - up cost is less than injection molding.
• it can do more complex geometry than a traditional injection mold process.
• having a natural fillet or radius is stress - relieving for the print.
• a prototype can be created before going to injection molding.

which of the following do sls prints have that is stress - relieving?

• an internal support structure
• a high - strength cantilever
• a cooling fan
• a natural fillet or radius

Explanation:

To solve this, we refer to the "SLS advantages" section. It states "Having a natural fillet or radius is stress - relieving for the print." The other options (internal support structure, high - strength cantilever, cooling fan) are not mentioned as stress - relieving for SLS prints.

Answer:

a natural fillet or radius