Plate lamination structure, plate reinforcement structure, plate connection structure, and plate lamination method

摘要

PPROBLEM TO BE SOLVED: To provide a plate lamination method which comprises stacking plates different from each other in a material grade on top of each other and joining the plates to each other by spot welding. PSOLUTION: A second plate material 2 and a third plate material 3, which can be spot-welded to a first plate material 1, are superimposed respectively on both surfaces of the first plate material 1. The first plate material 1 is formed of a material different from a material, of which the second and third plate materials are formed, and has a positioning hole 4. A positioning protrusion 5 corresponding to the positioning hole 4 in the first plate material 1 is formed in at least one of the second plate material 2 and the third plate material 3. The positioning protrusion 5 is fitted into the positioning hole 4 in the first plate material 1, and the second plate material 2 and the third plate material 3 are spot-welded to the first plate material 1 at the positioning protrusion 5 fitted into the positioning hole 4 in the first plate material 1. PCOPYRIGHT: (C)2011,JPO&INPIT