To provide a method and device manufacturing a cap-like product having a weld groove simultaneously with drawing.
The device for manufacturing the cap-like product having a weld groove is provided with a recessed type blanking punch 25 movable up and down, a drawing punch 22 provided opposing to the recessed part of the blanking punch 25 and a shearing die 21 provided around the drawing punch 22, and the end surface of the blanking punch 25 is inclined to make to outer edge to be an actual angle. And a bending part 28 is formed in the boundary between a side wall part formed by drawing simultaneously with drawing a flat plate and a flange part 31, and the cap-like product having the weld groove is manufactured by cutting the middle of the bending part in parallel with the side wall part and extending the cut part in the extending direction of the side wall part.