Technical description:
First, make modules with double curved boards designed according to the drawings, and then use the modules to open aluminum materials. After welding, polishing, cleaning and painting, a double curved aluminum veneer will come out. The specific procedures are as follows:
● Adopt appropriate process according to different curvature and shape.
◆ Make templates according to drawings.
◆ First, use a four roll rounding machine in the X direction to perform the rounding according to the single curved plate process, and then use the local rolling machine in the Y direction.
◆ Partial spot welding can bend the plate surface to the required radian.
◆ Inspect the preliminarily formed workpieces according to the template, and make secondary correction in local areas.
◆ Welding shall be carried out at the installation side around.
◆ For special double curved plate, die opening hydraulic forming or pull-up forming can be adopted。