Golf club head with integrally cast sole plate and fabrication m

Details Golf club head with integrally cast sole plate and fabrication m Golf club head with integrally cast sole plate and fabrication m

1993-11-23

1995-03-21

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164108, 164111, 164132, B22D 1900

Patent

active

053987462

ABSTRACT:
A metal wood golf club head with a hollow body shell of a first lightweight material and a sole plate of a second material having a higher specific weight density than the first material. The sole plate is attached to the shell without welding, fasteners or force-fitting. The center of gravity of the head is lowered, and other weight distributions can be achieved by alternate sole plate configurations, such as heel, toe or rear weighting. The head is fabricated by a process which includes the steps of providing the sole plate of the second material, disposing a core adjacent the interior surface of the sole plate, disposing an exterior mold about the core so that the exterior mold, the core and sole plate collectively define a mold cavity in the form of the body shell, filling the cavity with the second material in a fluid state, and permitting the second material to solidify. Upon solidification, the second material locks onto the sole plate, fixing the sole plate in position. The core may comprise a hollow metal structure, or cast sand or ceramic particles in an adhesive binder. The sand or ceramic core is later removed by heating the club head until the binder loses its effectiveness, and pouring the core particles out the hosel opening.

REFERENCES:
patent: 5219408 (1993-06-01), Sun

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