Abstract
Additive manufacturing also known as 3D printing that can fabricate complex part in a near net shape way. Direct energy deposition (DED), which can build new layers on the existing parts, is expected to be convenient for bonding dissimilar metals. In this study, specimens of aluminum alloys (Al-10Si-0.4Mg) and titanium alloys (Ti-6Al-4V) were fabricated by DED machine. And the effects of printing conditions on the properties of the fabricated parts were investigated. Tensile tests were conducted on the as-built materials using digital image correlation. In addition, the printing method of functionally graded materials (FGMs) of aluminum and titanium, which are difficult to be joined by conventional welding methods, was also discussed.
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