| 摘要 |
PURPOSE:To form metallurgical bonds thoroughly and to produce a superior clad steel plate at a low cost, by feeding two sheets of dissimilar metallic plates superposedly, and heat-melting the joining line of the meeting parts of both plates, then feeding the plates superposedly with superposing rolls. CONSTITUTION:Two sheets of dissimilar metallic plates 1, 2, for example, a stainless steel plate and a carbon steel plate are brought closer to each other from different directions with guiding rolls 3, 4, and are sandwiched under pressure by superposing rolls 5, 5' and 6, 6'. In this state, a geometrical joining line 8 is formed in the parts 7 where both plates 1, 2 are met by the first rolls 5, 5'. The line 8 is swept back and forth with the laser beam 11 from the gun 10 of a laser beam device 9. If the superposed feed speeds of both plates 1, 2 and the sweeping speed of the beam 11 are controlled, the line 8 is heated uniformly over the entire line, whereby a molten part 12 is formed. Said part is sandwiched and tightly stuck under pressure immediately by the rolls 5, 5', whereby both metallic plates are bound metallurgically. |
