| 摘要 |
PURPOSE:To reduce the gap of butt parts without increasing the cutting accuracy of a thin plate by fixing the interval of 1st and 2nd weld lines by setting it shorter than the length of an intermediate thin plate and abutting the end face by the self-recovery force by the deflection of the intermediate thin plate. CONSTITUTION:On each weld supporting bases 11, 12, 1st and 2nd thin plates 1, 2 are fixed. Intermediate thin plates 4, 5, 6 are then fixed to weld supporting bases 13, 14. Thereafter, the 1st thin plate 1 is pressed to reference members 17, 18, 19 by pressurizing means 21, 22 to set the 1st weld line A. Similarly the 2nd weld line B is set by pressurizing means 27, 28. The intermediate thin plates 4, 5, 6 are deformed by bending in a chevron shape upwards within an elastic range by actuating deforming means 29, 30, 31 to contract the length. The movable lever of the deforming means 29, 30, 31 is descended thereafter to release the bending state of the intermediate thin plates, which are restored in a plate shape. The intermediate thin plates 4, 5, 6 are then adhered by the self-elastic recovery force by abutting to 1st and 2nd end faces at their respective end face.
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