Apparatus for Linear Friction Welding

摘要

The linear friction welding (LFW) apparatus of this invention, in various embodiments includes a vibrating assembly or assemblies, which simultaneously vibrates both work pieces along the weld axis during the weld process. In one embodiment, separate vibrating assemblies are used to vibrate each work piece along the weld axis relative to each other. Each vibrating assembly has its own oscillator mechanism with motors and cams that can be moved into and out of phase with that of the other vibrating mechanism to generate the relative movement between the work pieces. In another embodiment, the apparatus includes a vibrating assembly that uses a single oscillator and two sets of rocker arms supporting carriages operatively connected by a linkage mechanism to simultaneously vibrate both work pieces along the weld axis.

主权项

1. A linear friction welding apparatus comprising:
a first fixture configured to hold a first work piece; a second fixture configured to hold a second work piece; a press assembly operatively connected to the first fixture and configured to press the first work piece toward the second work piece along a press axis under selective loads; a vibrating assembly spaced apart from the press axis and configured to simultaneously vibrate the first fixture and the second fixture along a weld axis so that both of the first work piece and the second work piece are moved along the single weld axis.