| 摘要 |
PURPOSE:To remove welding burrs quickly and surely by performing friction pressure welding by joining two work pieces while rotating one of the work pieces and removing welding burrs generated on the joining face using a milling cutter. CONSTITUTION:Work pieces A, B are held by the chuck of a rotary holding device 10 and the chuck of a fixed holding device 12 respectively. The work piece A is rotated at specified speed by a motor 30, and the work piece B is pressed against the joining face of the work piece A to generate heat by friction. The motor 30 is then stopped and holding of the work piece A is released, and joining is effected by applying upset pressure by the work piece B. Joined work pieces are held again by the chuck 24 and a cutting device 20 is lowered. The edge of a milling cutter 56 is positioned to welding burrs of the joined pieces. A main shaft is rotated at low speed by engaging rack 44 and pinion 36 of a low speed rotating device 18. The milling cutter 56 is rotated at high speed by a motor 54 of the cutting device 20 and lowered by an electromagnetic change-over valve 50, and welding burrs are cut off. |
