Topgolf Callaway Brands Corp.

Callaway Golf Company

Alex Power

Matthew Myers

Eric Itokazu

Patrick C Davis

James A Seluga

Christopher A G Nunez

Robert S Gonczi

Justin Del Rosario

Timothy G Scott

Romulus M Tomimbang

Jeremy R Hanhart

Kelsey Bazshushtari

Dan Marin

Joshua D Westrum

Irina Ivanova

Danielle Reyes

William Mellor

A method for transient liquid phase bonding golf club head components is disclosed herein. Golf club components composed of dissimilar materials are joined using transient liquid phase bonding. One embodiment of the transient liquid phase bonding process joins a steel component to titanium component using a pure copper interlayer heated between the temperature of 870° C. to 1085° C. The interaction between the titanium and the copper forms a eutectic below the melt temperature of pure copper, transitions to a liquid phase, and joins the titanium component to the steel component upon cooling.

Transient liquid phase bonding of golf club components

A golf club head with a mitered joint for joining components of dissimilar materials is disclosed herein. The golf club head has a body with an internal edge defining a recess, and a face component having an internal edge. The face component is disposed over the recess. The internal edge of the body and the internal edge of the face have an angle ranging from about 10 degrees to about 80 degrees.

Golf club head with miter joint for brazing

A method of joining dissimilar metal, golf club components, and particularly golf club bodies, hosels, and faces, using a projection resistance welding process is disclosed herein. The method may include the step of applying an interlayer material before the projection resistance weld process occurs.

Methods of joining metal golf club components with projection resistance welding

Methods of joining dissimilar metal, non-cylindrical golf club components, and particularly golf club bodies and faces, using one or more solid state processes are disclosed herein. One method includes the steps of preparing a first non-cylindrical golf club component made of a first metal material, preparing a second non-cylindrical golf club component made of a second metal material that is different from the first metal material, and affixing the first non-cylindrical golf club component to the second non-cylindrical golf club component along a plane using a solid state joining process. Another method includes the steps of providing a golf club body with a first planar joining surface, providing a golf club face component with a second planar joining surface, and affixing the first planar joining surface to the second planar joining surface via linear friction welding, rotational friction welding, diffusion bonding, or ultrasonic welding.

Methods of joining metal golf club components using solid state processes

Methods of manufacturing a golf club head with one or more stiffening members proximate the face, and particularly solid rods or a plate with one or more cutouts, is disclosed herein. One method includes the steps of preparing a wax mold of a golf club head including a plate stiffening member with excess material, casting the golf club head, and machining away the excess material. Another method includes the steps of casting a golf club body, providing a plate stiffening member, providing a face component such as a face cup, tack welding the plate stiffening member and the face component to the golf club body, and welding these parts together.

Method of manufacturing golf club head having stress-reducing features

Golf club head

An apparatus for precisely and accurately measuring the loft and lie of a golf club, and a method of using such apparatus, is disclosed herein. The apparatus includes a clamp assembly powered by a pressure unit to immobilize the head of a golf club, a scoreline measurement unit to capture scoreline angle information, loft and lie measurement arrays that can be moved along horizontal y and x axes to capture loft and lie angle information of the golf club shaft, and a computer with an algorithm that uses information captured by the scoreline measurement unit and loft and lie measurement arrays to calculate final loft and lie angle values that are accurate within +/−0.125°.

Apparatus and method for measuring lie and loft of a golf club

A golf club head with a mitered joint for joining components of dissimilar materials is disclosed herein. The golf club head has a body with an internal edge defining a recess, and a face component having an internal edge. The face component is disposed over the recess. The internal edge of the body and the internal edge of the face have an angle ranging from 10 degrees to 45 degrees.

A laser mandrel system that self-centers within a hosel bore of a golf club head to allow for precision adjustment of lie and loft is disclosed herein. The mandrel includes a one-piece housing with upper and lower portions, a laser centered within the upper portion of the housing, and a plurality of o-rings extending around an exterior or interior surface of a lower portion of the housing.

Growing community of inventors

Carlsbad, CA, United States of America

Alex Power