Method and apparatus for solve of several shorter metal parts, for example, tooth wheels, tools, spacers or the like, one after the other from a hollow shaft, on whose outer circumference of the metal parts are held with a press fit

摘要

Members which have been secured in assembly by interference fit are separated by temperature differential shrinking the inner of the members and expanding the outer of the members. In a preferred manner, this is done by introducing a heat abstracting medium such as cold gas, i.e. nitrogen, to the interior of the inner member to cause it to shrink at least selectively in the area engaged by the outer member, and expanding the outer member by heating it, i.e., flame, induction, radiant.