Patent ID: 7584639

Claim:
Method for the production of a can body with a closed can shell and at least one closure member arranged on the can shell, comprising: forming a metal strip to a tube closed in peripheral direction; laser welding a longitudinal seam in between lateral edges of the tube shaped metal strip substantially continuously in longitudinal direction of the tube; severing tube sections of the obtained tube, wherein each of the sections have the length of a desired can height and include face sides formed by front sides at edges on ends of each of the sections; forming the sections to can shells with at least one cross-sectional restriction from an enlarged cross-section to a smaller cross-section at least at one face side of the can shells, the face side of the can shell formed by a front side at an edge on an end of the can shells; and attaching a closure member in the form of a can bottom to said at least one restriction of each can shell by laser welding a circumferential seam, wherein an outer marginal region of the can bottom is adapted to the shape of said restriction and a marginal face side of the bottom is a marginal edge of the bottom, and for attaching the bottom to the can shell, the marginal face side of the bottom and the face side of the can shell at the bottom are on opposite sides of the can body, wherein one of the marginal face side of the bottom and the face side of the can shell at the bottom is inside of the can and the other one of the marginal face side of the bottom and the face side of the can shell at the bottom is outside of the can.