Forming process for sheet with boss structure

The invention belongs to the technical field of stamping, and relates to a forming process of a thin sheet with a boss structure, which comprises the following steps of: (1) punching a positioning hole, (2) punching a process hole, (3) punching a boss, (4) trimming and (5) blanking. (2) taking the positioning hole as a reference, and simultaneously cutting a plurality of process holes in a clip-shaped belt in the product forming area; and (3) the part, located on the outer side of the concentric-square-shaped belt, of the product forming area is pressed with the positioning hole as the reference, and then the part, located on the inner side of the concentric-square-shaped belt, of the product forming area is punched to form a boss structure. According to the process, transition areas between different heights can be divided into a plurality of disconnected connecting belts by using the process holes, the connecting belts can be controllably thinned, the shielding function is not influenced, the process cost i