TY - JOUR
T1 - Investigation for macro mechanical behavior explicitly for thin-walled parts of AlSi10Mg alloy using selective laser melting technique
AU - Zhang, Yingfeng
AU - Majeed, Arfan
AU - Muzamil, Muhammad
AU - Lv, Jingxiang
AU - Peng, Tao
AU - Patel, Vivek
N1 - Publisher Copyright:
© 2021
PY - 2021/6
Y1 - 2021/6
N2 - Recently additive manufacturing of aluminum alloys by selective laser melting (SLM) is of research interest due to its potential benefits in manufacturing industries. The present work investigates the SLM-built AlSi10Mg thin-walled parts and their macro-mechanical behavior in correlation with relative densities. The superlative mechanical behavior of SLM parts was achieved by using the optimal parameters, i.e. 320 W of laser power, 900 mm/s of scanning speed, and 80 μm of hatch distance. The results showed that the SLMed AlSi10Mg thin-walled specimens attained the highest relative density of 99.86 % and 99.21 % for the wall thickness of 0.50 mm and 5.0 mm, respectively. For 0.50 mm wall thickness specimen, the tensile strength of 250.9 MPa, yield strength of 143.7 MPa, breakage elongation of 5.31 %, and microhardness of 116.8 HV were attained which would be comparable to those of the conventionally die-cast A360 alloy. The 364 MPa of tensile strength and 12.04 % of breakage were achieved for 5.0 mm thin-walled specimen. The fracture behavior of different thin-walled fabricated tensile specimens was also examined using a scanning electron microscope (SEM).
AB - Recently additive manufacturing of aluminum alloys by selective laser melting (SLM) is of research interest due to its potential benefits in manufacturing industries. The present work investigates the SLM-built AlSi10Mg thin-walled parts and their macro-mechanical behavior in correlation with relative densities. The superlative mechanical behavior of SLM parts was achieved by using the optimal parameters, i.e. 320 W of laser power, 900 mm/s of scanning speed, and 80 μm of hatch distance. The results showed that the SLMed AlSi10Mg thin-walled specimens attained the highest relative density of 99.86 % and 99.21 % for the wall thickness of 0.50 mm and 5.0 mm, respectively. For 0.50 mm wall thickness specimen, the tensile strength of 250.9 MPa, yield strength of 143.7 MPa, breakage elongation of 5.31 %, and microhardness of 116.8 HV were attained which would be comparable to those of the conventionally die-cast A360 alloy. The 364 MPa of tensile strength and 12.04 % of breakage were achieved for 5.0 mm thin-walled specimen. The fracture behavior of different thin-walled fabricated tensile specimens was also examined using a scanning electron microscope (SEM).
KW - AlSi10Mg
KW - Mechanical properties
KW - Relative density
KW - Selective laser melting
KW - Thin-walled specimens
KW - Wall thickness
UR - http://www.scopus.com/inward/record.url?scp=85104287489&partnerID=8YFLogxK
U2 - 10.1016/j.jmapro.2021.04.022
DO - 10.1016/j.jmapro.2021.04.022
M3 - 文章
AN - SCOPUS:85104287489
SN - 1526-6125
VL - 66
SP - 269
EP - 280
JO - Journal of Manufacturing Processes
JF - Journal of Manufacturing Processes
ER -