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- W2361330457 abstract "Selective laser melting(SLM)has been developed as a new advanced rapid prototyping technology.Metal parts with advanced properties and complexity are directly manufactured with the SLM technology.Aluminum alloy is a light metal with excellent strength-to-weight ratio.However,some of its inherent properties,i.e.ease of oxidization,high reflectivity and thermal conductivity,make it difficult for aluminum alloy parts to be manufactured by SLM.In this study,a series of experiments have been conducted to optimize the processing parameters of SLM-built parts using AlSi12 power.Scan tracks as well as the structure and properties of built parts were analyzed with the optical microscope(OM),Scanning Electron Microscope(SEM)etc.Single track scanning experiments were conducted on a substrate With a thin layer of AlSi12 powder under different processing parameters(the laser power P and the scan speed V).Optimum parameters for single track scanning were obtained so that the linear energy density should be in the range of 0.17 ~0.36 J/mm.Multi-track experiments were then performed to find the relations between scanning spacing,overlapping ratio and the surface morphology.A processing window was obtained as 140~180 W for laser power,700~ 1 000 mm/s for scanning speed and 0.04~0.06 mm for hatch spacing.Blocks are fabricated to reveal the relation between the linear energy density and the resulting part density.The reason of porosity and balling effects are discussed from the perspective of powder properties and process parameters." @default.
- W2361330457 created "2016-06-24" @default.
- W2361330457 creator A5018029309 @default.
- W2361330457 date "2013-01-01" @default.
- W2361330457 modified "2023-09-23" @default.
- W2361330457 title "Experimental Study of Selective Laser Melted AlSi12" @default.
- W2361330457 hasPublicationYear "2013" @default.
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