| 摘要 |
Method for the fabrication of casings intended to accommodate electric equipment, comprising a step in which a sheet-metal band is bent into a box-like shape, a step for assembling the thus obtained box-shaped structure with at least two transverse section bars intended to impart rigidity to the composite structure of the casing, a step for transferring the composite structure of the casing to the welding tool, at least a welding step, and a casing unloading step. The method comprises a first welding step that is carried out with the composite structure of the casing (C) suspended to a first welding jig (26), whereas a second welding step is carried out with the composite structure of the casing (C) supported by a second welding jig (32) in an overturned position as compared with the previous one.
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