| 摘要 |
PURPOSE:To execute a joint in a state that the dimension and quality of a material are correct, by executing an operation of friction pressure welding, and thereafter, measuring a temperature of a measuring point for decision use, and deciding that a joint place of the material is correct, in case when the temperature conforms with a temperature determined in advance. CONSTITUTION:When the first material 17 is rotated and the second material 18 advances toward it, and the tip of the material 18 contacts the tip of the material 17, a thrust of a hydraulic cylinder 15 is raised. As for a contact pat of the materials 17, 18, the contact part is melted by a friction head, and when an approach allowance of the material 18 becomes a prescribed dimension, the rotation of the material 17 is stopped, and a thrust of the material 18 is raised to an upset thrust. Only in case when a butted molten part of the materials 17, 18 arrives at a measuring point 20, and a temperature of its part is within a temperature range determined in advance, it is outputted as a result of good decision, and in other case, it is outputted as a result of negative decision. |
