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In order to reduce stamping cost from perspective of material cost control, this article discussed the cost control strategy for automotive stamping material from three aspects: improving material utilization rate, applying new sheet metal manufacturing processes, and selecting materials rationally, combined with specific application cases. Firstly, material utilization can be improved by product collaborative development, stamping process optimization, and reusing stamping waste materials. Secondly, in the application of new sheet metal manufacturing processes, processes such as roller pressing and integrated heat forming can be used to replace the process of single stamping or multiple separate stamping followed by spot welding. Finally, in terms of rational material selection, principles for selecting steel with the same strength, using bake-hardening steel instead of interstitial-free steel, and recommendations for the application of high-strength steel are provided.
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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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