Golf club head and method for manufacturing the same
First Claim
1. A method for manufacturing a golf club head having a hollow structure composed of a main body-member and a metal face member welded to the main body-member, the metal face member integrally including a face-plate and a turnback, the face-plate having a rear surface and a front surface forming a club face, the face-plate comprising a central thick part and a thinner peripheral part therearound, and the turnback extending backward from at least part of the edge of the club face, the method comprising:
- step (a) of preparing a rolled material having a constant thickness;
step (b) of cutting out a face member part from the rolled material;
step (c) of making the face member by forming the turnback through press working on the face member part; and
step (d) of machining the cutout face member part after the step (b) and prior to the step (c) to reduce the thickness of a corresponding-to-turnback region and a part of a corresponding-to-face-plate region,wherein the corresponding-to-turnback region is a region of the cutout face member part corresponding to the turnback, and the part of the corresponding-to-face-plate region is a region of the cutout face member part corresponding to the thinner peripheral part of the face-plate,wherein the machining is carried out on a flat surface of the cutout face member part corresponding to the rear surface of the face-plate, andwherein, the method further comprises, prior to the step (c), a step of heat treating the cutout face member part by heating the cutout face member part in a temperature ranging between 700 and 800°
C., for 30 to 60 minutes and then slowly cooling down.
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Accused Products
Abstract
A method for manufacturing a golf club head having a hollow structure composed of a main body-member and a metal face member welded thereto, comprises the steps of: (a) preparing a rolled material having a constant thickness; (b) cutting out a face member part or blank from the rolled material; (c) making the face member by forming the turnback through press working on the face member part; and (d) reducing the thickness of a corresponding-to-turnback region by machining prior to the step (c), wherein the corresponding-to-turnback region is a region of the cutout face member part corresponding to the turnback, or a region of the rolled material corresponding to the turnback.
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Citations
12 Claims
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1. A method for manufacturing a golf club head having a hollow structure composed of a main body-member and a metal face member welded to the main body-member, the metal face member integrally including a face-plate and a turnback, the face-plate having a rear surface and a front surface forming a club face, the face-plate comprising a central thick part and a thinner peripheral part therearound, and the turnback extending backward from at least part of the edge of the club face, the method comprising:
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step (a) of preparing a rolled material having a constant thickness; step (b) of cutting out a face member part from the rolled material; step (c) of making the face member by forming the turnback through press working on the face member part; and step (d) of machining the cutout face member part after the step (b) and prior to the step (c) to reduce the thickness of a corresponding-to-turnback region and a part of a corresponding-to-face-plate region, wherein the corresponding-to-turnback region is a region of the cutout face member part corresponding to the turnback, and the part of the corresponding-to-face-plate region is a region of the cutout face member part corresponding to the thinner peripheral part of the face-plate, wherein the machining is carried out on a flat surface of the cutout face member part corresponding to the rear surface of the face-plate, and wherein, the method further comprises, prior to the step (c), a step of heat treating the cutout face member part by heating the cutout face member part in a temperature ranging between 700 and 800°
C., for 30 to 60 minutes and then slowly cooling down. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for manufacturing a golf club head having a hollow structure composed of a main body-member and a metal face member welded to the main body-member, the metal face member integrally including a face-plate and a turnback, the face-plate having a rear surface and a front surface forming a club face, the face-plate comprising a central thick part and a thinner peripheral part therearound, and the turnback extending backward from at least part of the edge of the club face, the method comprising:
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step (a) of preparing a rolled material having a constant thickness; step (b) of cutting out a face member part from the rolled material; step (c) of making the face member by forming the turnback through press working on the face member part; and step (d) of machining the rolled material prior to the step (b) to reduce the thickness of a corresponding-to-turnback region and a part of a corresponding-to-face-plate region, wherein the corresponding-to-turnback region is a region of the rolled material corresponding to the turnback, and the part of the corresponding-to-face-plate region is a region of the rolled material corresponding to the thinner peripheral part of the face-plate, wherein the machining is carried out on a flat surface of the rolled material corresponding to the rear surface of the face-plate, and wherein, the method further comprises, prior to the step (c), a step of heat treating the cutout face member part by heating the cutout face member part in a temperature ranging between 700 and 800°
C., for 30 to 60 minutes and then slowly cooling down. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification