Plate cold forming luggage and production process

The invention discloses a plate cold-formed case and a production process, the plate cold-formed case comprises two case bodies which are buckled up and down, each case body comprises a rectangular composite plate, the corner of each composite plate is provided with a notch, and each composite plate is divided into an upper end, a lower end and symmetrical wing parts by the corresponding notch; a plurality of mounting holes are formed in the edges of the two sides of the notch; the upper end, the lower end and the wing part of the composite board are bent upwards by a set angle, so that the adjacent sides of the notches are mutually overlapped, and the corresponding mounting holes are aligned to form corners; the corner is clamped through an inner shaping piece and an outer shaping piece, a fastener sequentially penetrates through the inner shaping piece and the mounting hole and then is fixedly connected into the outer shaping piece, and the side edges, overlapped with each other, of the adjacent sides of th