wu weihui, yang yongqiang, wang di. Laser direct rapid manufacturing of functional metal part with complex structure and full density[J]. High Power Laser and Particle Beams, 2011, 23.
Citation:
wu weihui, yang yongqiang, wang di. Laser direct rapid manufacturing of functional metal part with complex structure and full density[J]. High Power Laser and Particle Beams, 2011, 23.
wu weihui, yang yongqiang, wang di. Laser direct rapid manufacturing of functional metal part with complex structure and full density[J]. High Power Laser and Particle Beams, 2011, 23.
Citation:
wu weihui, yang yongqiang, wang di. Laser direct rapid manufacturing of functional metal part with complex structure and full density[J]. High Power Laser and Particle Beams, 2011, 23.
It is very difficult to rapidly and directly manufacture functional metal part with complex structure and full density (FMPCD) . In this study, the method of rapid manufacturing FMPCD by selective laser melting (SLM) was discussed, and the problem of ensuring synchronously part density and precision during SLM process was analyzed in detail combined with some SLM experiments. The results show that in order to rapidly manufacture FMPCD by SLM, it is necessary to reduce the effects of balling, spattering and air holes on part density and precision; Balling and air holes can be avoided by maintaining enough re-melting amount of upper solidified layer which can be got through use of enough thin powder layer thickness and careful adjustment of other processing parameters under good antioxidant
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