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The selective laser melting of tin bronze (CuSn 10 ) powder was performed with a laser energy density intensity level at 210, 220, and 230 J/mm². The composition was homogeneous with almost all tin dissolved into the matrix. The grain size of the obtained alpha copper phase was around 5 &amp;mu;m. The best properties were achieved at 220 J/mm² laser energy density with a density of 8.82 g/cm³, hardness of 78.2 HRB (Rockwell Hardness measured on the B scale), yield strength of 399 MPa, tensile strength of 490 MPa, and an elongation that reached 19%. &amp;ldquo;Balling effect&amp;rdquo; appeared and resulted into a decrease of properties when the laser energy density increased to 230 J/mm².

Study on the Selective Laser Melting of CuSn10 Powder