A Review of Methods Used to Reduce the Effects of High Temperature Associated with Polyamide 12 and Polypropylene Laser Sintering

Table 3

Advantages and disadvantages of SLS.

Advantages	Disadvantages
Does not require support structures	The industrial equipment is expensive
Capable of printing intricately shaped components with a significantly geometrical accuracy compared to FDM [5]	Has long throughput time, especially for large or geometrically complex works [5]
Smooth surfaces are achieved	Machines must be cleaned thoroughly when changing material to avoid contamination
Parts printed have better tensile strengths than the ones manufactured using FDM [6]	Management of powder inventory is sophisticated
Powder can be reused, which saves production cost	Limited array of suitable polymeric materials, with polyamide (PA) contributing to about 95% of all polymers used for SLS [7]
	Powder dust is a challenge, which calls for frequent cleaning using vacuum cleaners