Preliminary Testing to Determine the Best Process Parameters for Polymer Laser Sintering of a New Polypropylene Polymeric Material

Table 5

Parameters and observations made while establishing optimal removal and building chamber temperature.

Set of process parameters #	Temp. removal chamber (°C)	Temp. building phase (°C)	Layer thickness (mm)	Hatch distance (mm)	Scan speed fill (mm/s)	Laser power fill (W)	Scan speed contour/edges (mm/s)	Laser power contour/edges (W)	Observation
1	100	120	0.15	0.25	4500	32.6	1500	19.8
2	115	125	0.15	0.25	4000	32.6	1500	19.8
3	120	130	0.15	0.25	4000	32.6	1500	19.8
4	120	125	0.15	0.25	4000	33.7	1500	15.3
5	120	125	0.15	0.25	3000	33.7	1000	15.3
6	125	125	0.15	0.25	4500	33.7	1500	15.3	++
7	124	125	0.15	0.25	4500	33.7	1500	15.3

Flat specimens were not grown to completion. ⁺⁺Flat specimens were grown to completion.