| 摘要 |
Support device (20) meant to bear in supporting fashion on one or more work pieces in connection with friction stir welding, comprising:
A holder unit (30),a first support wheel (40) which can be rotated relative to the holder unit about a first rotational axis (R1), anda second support wheel (50) which can be rotated relative to the holder unit around a second rotational axis (R2) which is parallel to the said first rotational axis,a support body (60) connected with the holder unit which is situated between support wheels and exhibits a support surface (61) turned outward, andan endless flexible metal belt (21), which runs in a loop over the outer peripheral surfaces (41, 51) of the support wheels, and is in sliding contact with the support surface of the support device, wherein the support devices are shaped to provide support as they bear on one or more work pieces with the outer peripheral surfaces of the support wheel, and with the support surface of the support body resting against the work pieces via the metal belt.;The invention also provides a backing arrangement comprising such a support device. |
