| 摘要 |
Described and illustrated is a method for joining a plastic workpiece (1) to a further workpiece (3). The object, to provide a method for joining a plastic workpiece to a further workpiece, wherein a safe and reliable joint is established while at the same time a possibly smooth second surface is formed and possibly little weight is required for said joint, is achieved by the following steps: (a) Providing a plastic workpiece (1) having an abutment surface (5) and a projection (7) having a front surface (9), (b) Providing a further workpiece (3) having a first surface (13), a second surface (15), and a through hole (17) defined by a hole wall (19) in which an undercut (21) is provided, (c) Arranging the plastic workpiece (1) and the further workpiece (3), such that the abutment surface (5) abuts on the first surface (13) and the projection (7) extends through the through hole (17), (d) Providing a friction tool (23) which has a base surface (27) and a pin (29) extending away from the base surface (27), wherein the pin (29) has a friction surface (31), (e) Rotating the friction tool (23) about the axis of rotation (25), (f) Linearly moving the friction tool (23) towards the projection (7), (g) While rotating, further linearly moving of the friction tool (23), so that the pin (29) penetrates the material of the projection (7), plasticizes said material, and laterally displaces said material into the undercut (21), (h) Retracting the friction tool (23) from the projection (7). |
