Question

sls: common applications
(use the information below to answer the question)
materials used
with sls, you can use multiple materials, which are suitable for functional applications, such as prototypes and actual production use. the materials are very strong with high dimensional accuracy.
cost effectiveness
you can make low to medium production runs, which makes it very cost effective.
complex geometries
being able to create a functional product with hollow sections that don’t require a support structure is one of the main uses for sls technology. due to the powder bed being the support, parts can be formed with hollow sections, such as a pipe. the ability to do complex geometry along with no need for support material makes it a perfect application for complex casting components.

which of the following is true about the cost of the sls process?
it is the cheapest 3d printing process.
it has a high variability of cost.
it is very cost efficient.
it has an inefficient cost rate.

Explanation:

To determine the correct answer, we analyze each option based on the "Cost Effectiveness" section which states "You can make low to medium production runs, which makes it very cost effective."

• Option 1: The text does not state it is the cheapest 3D printing process, so this is false.
• Option 2: There is no mention of high cost variability, so this is false.
• Option 3: The "Cost Effectiveness" section says it is very cost effective, so this is true.
• Option 4: The text says it is cost effective (low to medium runs), so "inefficient cost rate" is false.

Answer:

C. It is very cost efficient. (Assuming the options are labeled A - D with C being "It is very cost efficient")