| 摘要 |
The invention relates to a method and a device for removing an elongate shrink-fitted core made of a tough material from a hole. According to the invention, a coupling member (5) or a pressure pin (3) is inserted into a bore (2) in the core (1) and projects therefrom. By applying a force to this member or pin, the core is elongated up to its plastic deformation range and is made to shrink radially. When the deformation has begun, the core is further loaded at low speed up to a maximum stress of between 95% and 97% of its rupture strength. |
