a process of fabricating aerospace parts using selective laser sintering is provided , wherein the process generally comprises the steps of preparing a powder nylon material , loading the powder nylon material into a laser sintering machine , warming up the powder nylon material according to build warm - up parameters , building the part according to build parameters and part parameters , and cooling down the part according to build cool - down parameters . as a result , parts are produced that are directly used in aerospace structures , which meet the stringent performance requirements of aerospace applications , rather than as rapid prototypes as with conventional selective laser sintering processes . additionally , specific designs for aerospace parts such as ducts , panels , and shrouds are provided that are produced by the selective laser sintering process .