Method and an apparatus for inductively welding a front fork of

Details Method and an apparatus for inductively welding a front fork of Method and an apparatus for inductively welding a front fork of

1985-02-06

1986-04-22

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 95, 219 1071, 219 1057, 219 1079, 219 1077, 228154, H05B 644

Patent

active

045844534

ABSTRACT:
The present invention discloses a method for welding the front fork of a bicycle which makes each junctures among the joint, the handlebar, and the fork blades simultaneously reach the melting temperature of a weld metal, so that the weld metal located in the joint evenly distributes over each juncture. The present invention also discloses an apparatus for welding the front fork of a bicycle which utilizes two high-frequency induction coils to heat the front fork respectively from the outer surface and the inner surface of the front fork, and controls the voltage applied to the high-frequency induction coils and the time span of the heating throughout all of the heating and welding procedures.

REFERENCES:
patent: 2359285 (1944-10-01), Bennett
patent: 2762892 (1956-09-01), Park
patent: 4418258 (1983-11-01), McNealy et al.
patent: 4420667 (1983-12-01), Lewis
patent: 4501943 (1985-02-01), Lund

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