Frictional welding apparatus

Details Frictional welding apparatus Frictional welding apparatus

1998-06-08

2000-08-15

Ryan, Patrick

Metal fusion bonding

Including means to provide heat by friction between...

2281121, B23K 2012

Patent

active

061022721

ABSTRACT:
The reciprocally movable parts of a friction welding apparatus for performing a linear bonding process are connected to a rocking member arrangement including a torsion bar arrangement the elastic properties of which are used to store and return energy alternately to the reciprocating system in succeeding half cycles of the linear reciprocal movement. The total work input required from the oscillator driving the welding apparatus, once the system is set in motion, is thus reduced to the work needed to produce the friction bond and to overcome the internal friction of the machine. In a preferred arrangement the reciprocating parts, including the welding tooling, are dynamically balanced by two counterbalance weights spaced symmetrically about a centreline of the apparatus, and each counterweight is coupled through a respective torsion bar mounted rocking member to the reciprocating parts.

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patent: 5849146 (1998-12-01), Searle et al.
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