METHOD OF ANCHORING A FIRST OBJECT IN A SECOND OBJECT

摘要

Method and machine for joining two objects (1, 5) by anchoring an insert portion (6) provided on a first object (6) in an opening (2) provided on a second object (1). The anchorage is achieved by liquefaction of a thermoplastic material and interpenetration of the liquefied material and a penetrable material, the two materials being arranged on opposite surfaces (18, 19) of the insert portion (6) and the wall of the opening (2). During the step of inserting the insert portion (6) in the opening and/or during anchorage a clamping force is applied to opposing surfaces (3) of the second object to prevent the second object from cracking or bulging.