Method for processing a striking plate for a golf club head
First Claim
Patent Images
1. A method for producing a face member for a golf club head, the method comprising:
- heating a cylindrical metal bar having a diameter of 1.8 centimeters and a length of 10 centimeters to a temperature ranging from 900°
C. to 970°
C. for a time period ranging from 10 minutes to 17 minutes;
pressing the heated cylindrical metal bar into an L-shape metal bar;
heating the L-shape metal bar to a temperature ranging from 900°
C. to 970°
C. for a time period ranging from 10 minutes to 17 minutes;
pressing the L-shape metal bar into an intermediate shape face member;
placing the intermediate shape face member into a tumbler for tumbling;
coating the intermediate shape face member with a glazing compound;
heating the coated intermediate shape face member ranging from 900°
C. to 970°
C. for a time period ranging from 10 minutes to 17 minutes; and
immediately pressing the heated intermediate shape face member into a final face member configuration having a thickness in the range of 0.010 inch to 0.250 inch; and
wherein the final face member comprises an upper lateral extension, a lower lateral extension, a heel wall a toe wall opposite the heel wall, and wherein the final face member extends laterally inward along its entire perimeter.
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Abstract
A method for producing a forged striking plate for a golf club is disclosed herein. The forging process involves multiple heating and pressing of a metal bar to obtain a final face member configuration. The heating of the metal bar is performed at temperatures below 1000° C. for less than twenty minutes. The final face member configuration has a striking plate with regions of variable thickness. The metal bar is preferably composed of a forged titanium material.
155 Citations
15 Claims
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1. A method for producing a face member for a golf club head, the method comprising:
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heating a cylindrical metal bar having a diameter of 1.8 centimeters and a length of 10 centimeters to a temperature ranging from 900°
C. to 970°
C. for a time period ranging from 10 minutes to 17 minutes;
pressing the heated cylindrical metal bar into an L-shape metal bar;
heating the L-shape metal bar to a temperature ranging from 900°
C. to 970°
C. for a time period ranging from 10 minutes to 17 minutes;
pressing the L-shape metal bar into an intermediate shape face member;
placing the intermediate shape face member into a tumbler for tumbling;
coating the intermediate shape face member with a glazing compound;
heating the coated intermediate shape face member ranging from 900°
C. to 970°
C. for a time period ranging from 10 minutes to 17 minutes; and
immediately pressing the heated intermediate shape face member into a final face member configuration having a thickness in the range of 0.010 inch to 0.250 inch; and
wherein the final face member comprises an upper lateral extension, a lower lateral extension, a heel wall a toe wall opposite the heel wall, and wherein the final face member extends laterally inward along its entire perimeter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
heating the final face member configuration to a temperature ranging from 250°
C. to 520°
C. for up to 20 minutes; and
pressing the heated final face member configuration in a press at a low pressure that is less than the pressure of any of the three previous pressings, the low pressure pressing ensuring proper bulge and roll of the final face member configuration.
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3. The method according to claim 1 wherein the cylindrical metal bar is composed of titanium.
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4. The method according to claim 3 wherein the cylindrical metal bar is beta titanium and the final face member configuration is composed of beta titanium and alpha titanium.
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5. The method according to claim 1 wherein pressing the heated intermediate shape face member comprises pressing the heated intermediate shape into a final face member configuration with a variable thickness.
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6. A golf club head manufactured by the method according to claim 5 wherein the final face member configuration has a striking plate with concentric regions of varying thickness with the thickest region in the center.
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7. A golf club head manufactured by the method according to claim 5 wherein the final face member configuration has a striking plate comprising a central circular region having a base thickness, a first concentric region having a first thickness wherein the base thickness is greater than the first thickness, a second concentric region having a second thickness wherein the first thickness is greater than the second thickness, a third concentric region having a third thickness wherein the second thickness is greater than the third thickness, and a periphery region having a fourth thickness wherein the fourth thickness is less than the third thickness.
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8. The method according to claim 5 wherein the final face member configuration comprises
a striking plate having an exterior surface, an interior surface and a perimeter, and a face extension extending laterally inward along the entire perimeter of the striking plate, the face extension having an upper portion, a lower portion opposite the upper portion, a heel wall substantially perpendicular to the plate portion, and a toe wall opposite the heel wall.
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9. A method for producing a face member for a golf club head, the method comprising:
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heating a titanium cylindrical bar to a temperature between 900°
C. and 975°
C. for a time period ranging from 10 to 17 minutes, the titanium cylindrical bar having a diameter less than 2 centimeters and a length of 10 centimeters;
pressing the heated titanium bar into an L-shape bar;
heating the L-shape bar to a temperature between 900°
C. and 975°
C. for a time period ranging from 10 minutes to 17 minutes;
pressing the heated L-shape bar into an intermediate shape face member;
coating the intermediate shape face member with a glazing compound;
heating the coated intermediate shape face member to a temperature between 900°
C. and 975°
C. for a time period ranging from 10 to 17 minutes;
pressing the heated intermediate shape face member into a final face member configuration having an upper lateral extension, a lower lateral extension, a heel wall, and a toe wall;
heating the final face member configuration to a temperature ranging between 250°
C. and 520°
C. for a period of between 15 to 20 minutes;
pressing the heated final face member configuration in a press at a low pressure that is less than the pressure of any of the three pressings, the low pressure pressing ensuring proper bulge and roll of the final face member configuration; and
drilling a hosel aperture through the upper lateral extension extending down through the lower lateral extension. - View Dependent Claims (10, 11, 12)
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13. A method for producing a face member for a golf club head, the method comprising:
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heating a cylindrical metal bar to a temperature between 900°
C. and 975°
C. for a time period ranging from 10 to 17 minutes;
pressing the heated cylindrical metal bar into an L-shape metal bar;
heating the L-shape metal bar to a temperature between 900°
C. and 975°
C. for a time period ranging from 10 to 17 minutes;
pressing the L-shape metal bar into an intermediate shape face member;
coating the intermediate shape face member to a temperature between 900°
C. and 975°
C. for a time period ranging from 10 to 17 minutes; and
pressing the heated intermediate shape face member into a final striking plate configuration, the final face member configuration comprising a striking plate with an aspect ratio ranging from 1.0 to 1.7 having an exterior surface, an interior surface and a perimeter, and a face extension extending laterally inward along the entire perimeter of the striking plate, the face extension having an upper portion, a lower portion opposite the upper portion, a heel wall perpendicular to the striking plate, and a toe wall opposite the heel wall. - View Dependent Claims (14, 15)
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Specification