Abstract

A golf club head alloy includes 5.5-8 parts by weight of aluminum, 1.7-3.3 parts by weight of molybdenum, 1.7-2.3 parts by weight of vanadium, and at least one of not greater than 2 parts by weight and greater than 0 parts by weight of chromium, not greater than 0.35 parts by weight and greater than 0 parts by weight of silicon, 0.15-1.3 parts by weight of iron, 0.05-0.2 parts by weight of boron, and 2.5-3.5 parts by weight of tin, with the balance being titanium.

IPC Classes  ?

• C22C 14/00 - Alloys based on titanium
• A63B 53/04 - Heads

Abstract

A golf club head alloy is used to solve the problem of insufficient strength of conventional golf club heads. The golf club head alloy comprises 8-9 wt % of aluminum, 3.5-4.5 wt % of vanadium, ≤2 wt % of molybdenum, with the balance being titanium and inevitable impurities. A golf club head produced from the golf club head alloy and a heat treatment method for the golf club head alloy are also disclosed.

IPC Classes  ?

• A63B 53/04 - Heads

Abstract

A method for manufacturing a golf club head includes aging heat treat a sheet material made of a titanium alloy at 650-750° C. for 10-12 hours to obtain an aging heat treated sheet material. The aging heat treated sheet material is hot rolled to form a striking plate. The striking plate is annealed at 700-800° C. for 30-60 minutes to obtain an annealed striking plate. The annealed striking plate is welded to a club head body made of the titanium alloy to form a semi product. The semi product of the golf head is annealed at 500-700° C. for 30-240 minutes to obtain the golf club head. Thus, the golf club head with a Young's modulus higher than 119 GPa can be manufactured.

IPC Classes  ?

• C22F 1/18 - High-melting or refractory metals or alloys based thereon
• A63B 53/04 - Heads
• B21B 1/22 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length
• C22C 14/00 - Alloys based on titanium
• B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
• A63B 102/32 - Golf
• B23K 103/14 - Titanium or alloys thereof

Abstract

A method for manufacturing a golf club head includes providing a club head body produced by electric smelting an alloy base material including 0.04-0.07 wt % of carbon, 0.5-1.0 wt % of manganese, 0.5-1.0 wt % of silicon, less than 0.04 wt % of phosphorus, less than 0.03 wt % of sulfur, 15-17.7 wt % of chromium, 3.6-5.1 wt % of nickel, 2.8-3.5 wt % of copper, with the rest being iron and inevitable impurities. A solid solution treatment is proceeded at 1020-1080° C. for 80-100 minutes to form austenite and martensite in the club head body. A deep cooling treatment is proceeded between −120° C. and −80° C. for 7-9 hours to turn the austenite in the club head body into martensite. An aging treatment is proceeded on the club head body at 460-500° C. for 210-270 minutes to provide a hardness of HRC 36-46. A hosel is heated with high frequency waves at 900-1000° C. to posses a hardness lower than HRC 20.

IPC Classes  ?

• C21D 6/04 - Hardening by cooling below 0° C
• B21K 17/00 - Making sport articles, e.g. skates
• C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C21D 6/00 - Heat treatment of ferrous alloys
• A63B 53/02 - Joint structures between the head and the shaft
• A63B 53/04 - Heads

Abstract

A method for manufacturing a golf club head having an embedded heterogeneous material includes preparing a shell mold having a cavity and a functional member embedded into the shell mold via an embedded portion, filling the cavity with a metal liquid to completely dip the non-embedded portion of the functional member in the metal liquid; breaking the shell mold to obtain a cast product, separating the golf club head cast member from the cast product to obtain a semi-finished golf club head having a casting material and a heterogeneous material, and pressing the casting material of the semi-finished golf club head to securely engage the casting material with the heterogeneous material. The functional member includes a non-embedded portion connected to the embedded portion and located in the cavity. The cast product includes a golf club head cast member.

IPC Classes  ?

• A63B 53/04 - Heads
• B22D 19/00 - Casting in, on, or around, objects which form part of the product
• C23C 8/02 - Pretreatment of the material to be coated
• C23C 8/20 - Carburising
• C23C 4/18 - After-treatment
• C23C 8/22 - Carburising of ferrous surfaces
• C23C 4/11 - Oxides
• C23C 4/134 - Plasma spraying
• C21D 7/10 - Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars

Abstract

A method includes placing a shell mold with a crucible portion and a casting portion in communication with the crucible portion on a rotary table, with the heterogeneous material including an embedded portion inlaying in the casting portion of the shell mold and a non-embedded portion locating in a cavity of the casting portion, placing a metal ingot into the crucible portion, followed by melting the metal ingot into molten metal in a vacuum environment, rotating the rotary table, causing the molten metal to flow into the cavity, destroying the shell mold after the molten metal solidifies to obtain a casting including a cast product portion separated from the casting to obtain a cast product of a golf club head, and removing the embedded portion of the heterogeneous material protruding from an outer periphery of the cast product of the golf club head.

IPC Classes  ?

• B22C 9/06 - Permanent moulds for shaped castings
• B22D 13/04 - Centrifugal castingCasting by using centrifugal force of shallow solid or hollow bodies, e.g. wheels or rings, in moulds rotating around their axis of symmetry
• B22D 13/10 - Accessories for centrifugal casting apparatus, e.g. moulds, linings thereforMeans for feeding molten metal, cleansing moulds or removing castings
• B22D 19/16 - Casting in, on, or around, objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
• B22C 9/04 - Use of lost patterns
• B22C 7/02 - Lost patterns
• B22D 13/06 - Centrifugal castingCasting by using centrifugal force of solid or hollow bodies in moulds rotating around an axis arranged outside of the mould
• A63B 53/02 - Joint structures between the head and the shaft
• A63B 53/04 - Heads

Abstract

A golf club includes a head, a removable assembly and a shaft. The head has a body, a striking panel and a sleeve. The body is coupled with the striking panel. The sleeve is sandwiched between the body and the striking panel. The sleeve includes a neck and an assembling portion. The neck protrudes from a combined structure of the body and the striking panel, and the assembling portion is sandwiched between and enclosed by the body and the striking panel. The neck has an assembling hole. The assembling portion has at least one engaging hole extending from a surface of the assembling portion to a circumferential wall of the assembling hole. At least one engaging medium is placed in the engaging hole. The removable assembly is disposed in the assembling hole and coupled with the engaging medium. The shaft has one end inserted into the removable assembly.

IPC Classes  ?

• A63B 53/02 - Joint structures between the head and the shaft

Abstract

A golf club has a head including a base layer and a compounded transfer layer. The base layer has a coupling face. The compounded transfer layer is formed on the coupling face of the base layer. The compounded transfer layer has a dye layer and a protection layer. The dye layer is sandwiched between the base layer and the protection layer.

IPC Classes  ?

• A63B 53/04 - Heads
• A63B 53/14 - Handles