WAAM Technique: Process Parameters Affecting the Mechanical Properties and Microstructures of Low-Carbon Steel

This study surveys the influences of travel speed, voltage, and intensity on characteristics low-carbon steel samples generated by Wire Arc Additive Manufacturing (WAAM) technique. The results indicated that WAAM have isotropy grain shape, with size number values varying from about 8 to 12. Interestingly, sample achieves better mechanical properties a higher ultimate tensile strength (UTS) value elongation at break than original wire. UTS is 21–40% rate 350 mm·min−1, voltage 24 V, an electrical 120 A reaches highest 694 MPa. 400 22 170 gains lowest 599 Moreover, oscillate around 41–57%, two or three times SEM microstructure reveals ductile fracture surface dimples after test, indicating toughness samples. also shows equiaxial shape According Taguchi analyses, factor greatly impacts size. has effect value. most significant impact