THE EFFECTS OF SELECTIVE LASER MELTING SCAN STRATEGIES ON DEVIATION OF HYBRID PARTS
| Autor: | Dimitar Dimitrov, Devon Hagedorn-Hansen, Martin Bezuidenhout, Tiaan Oosthuizen |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0209 industrial biotechnology
Engineering lcsh:T55.4-60.8 laser scan strategies 02 engineering and technology Industrial and Manufacturing Engineering law.invention 020901 industrial engineering & automation law lcsh:Industrial engineering. Management engineering Selective laser melting Image warping Aerospace Porosity Process engineering business.industry Manufacturing process Process (computing) 021001 nanoscience & nanotechnology Laser Manufacturing engineering hybrid parts selective laser melting 0210 nano-technology business Reduction (mathematics) |
| Zdroj: | South African Journal of Industrial Engineering, Vol 28, Iss 3, Pp 200-212 (2017) |
| ISSN: | 2224-7890 |
| DOI: | 10.7166/28-3-1862 |
| Popis: | The use of additive manufacturing to produce intricate part geometries in the aerospace, medical, and tool-and-die industries is increasingly incorporated in manufacturing process chains. However, the high costs, long production times, and material integrity issues associated with additive manufacturing technologies such as selective laser melting make the process suitable only for certain applications. In order to reduce selective laser melting production costs for selected parts, a combination of selective laser melting and milling can be used. Metal parts produced with this method are referred to as hybrid parts. A challenge in producing hybrid parts is to reduce the geometrical deviation due to process-induced warping. This paper discusses the effects of various laser scan strategies on the deviation of hybrid parts. A newly developed scan strategy is experimentally compared with its commercial counterpart with regard to as-built part warping and porosity. The novel strategy resulted in a significant reduction in warping and porosity. |
| Databáze: | OpenAIRE |
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