TJ Mechanical engineering and machinery 15 3D printing 10 Additive manufacturing 10 Selective laser melting 8 TP Chemical technology 8 Humans 7 Manufacture 7 human 7 Article 6 Computer-Aided Design 6 TK Electrical engineering. Electronics Nuclear engineering 6 additive manufacturing 6 computer aided design 6 procedures 6 T Technology (General) 5 TS Manufactures 5 3-D printing 4 3D printers 4 Additives 4 Architecture 4 Cost effectiveness 4 Manufacturing process 4 Materials science 4 Sintering 4 TA Engineering (General). Civil engineering (General) 4 comparative study 4 polymer 4 technology 4 three dimensional printing 4 3D-printing 3