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This article elaborated the process layout of the advanced flexible main welding line of Body In White (BIW) for the high beat (60 JPH) 4-model fixed line in a China OEM, this welding line adopted advanced technologies such as automatic welding, automatic pre-assembly, OPEN GATE type main assembly frame, top cover laser brazing, automatic brushing of the top cover laser welding, automatic polishing, robot vision application, AGV automatic conveying, and online measurement, which can meet the requirements of mixed production of different BIW from cars to MPVs. In the high beat production process, the production line can meet the requirements of switching within 4 models without beat loss. The paper firstly elaborated the flexible solution for different stations in the main welding line, then, taking this production line as a case, interpreted the typical processes adopted by some main welding lines in terms of the solution and design of multiple vehicle mixed lines. At the end of this paper, the key points in design and planning of the main welding line were elaborated and analyzed.
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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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