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In order to achieve the goals of improving product performance index, technological innovation, reducing cost, shortening manufacturing cycle and personalized customization, this article made in-depth technical research on the metal 3D printing Selective Laser Melting (SLM) process to make aluminum alloy (AlSi10Mg) and stainless steel (316L) material parts. The article mainly studied the optimization of metal 3D printing support process, exploration of unsupported technology, mechanical properties of parts and its application in automotive products, and explored its practical application scenarios. According to the exploration results, the article summarized the process guidance specification of metal 3D printing supporting technology and the exploration rules of unsupported technology, and the specific values of mechanical properties of printed parts. Meanwhile, the application scenarios of automobile parts were developed, and the traditional parts with complex, long cycle and high cost were replaced by metal 3D printing laser selective melting (SLM) process. It provides theoretical basis and practical case reference for further application of metal 3D printing technology in automobile parts.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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