Titanium Alloy Golf Club Head Manufacturing for High Young's Modulus
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Solution Overview
Problem
Conventional methods for manufacturing golf club heads result in a Young's modulus of only 119 GPa, leading to poor performance in running distance due to insufficient tensile strength and yield strength.
Innovation Solution
A method involving the use of a titanium alloy sheet material with specific composition, undergoing aging heat treatment, hot rolling, first annealing, welding, and second annealing to achieve a Young's modulus higher than 119 GPa, including steps such as pressing with a steel plate to reduce crystal grain size and performing heat treatments at specific temperatures and durations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional manufacturing method (smelting, forging, hot rolling, cold rolling, annealing) is used, then manufacturing process is simple, but Young's modulus is only 119 GPa which is insufficient for performance
Solution Approach 1:
The patent applies preliminary action by performing aging heat treatment on the titanium alloy sheet material before hot rolling to form the striking plate. This pre-treatment at 650-750°C for 10-12 hours optimizes the material's microstructure and mechanical properties in advance, enabling the final product to achieve Young's modulus greater than 119 GPa while maintaining a manageable manufacturing process
Solution Approach 2:
The patent employs parameter changes by modifying the aluminum content to 7-9.5 wt% and vanadium content to 0.5-2 wt%, and by implementing specific heat treatment parameters (aging at 650-750°C for 10-12 hours, first annealing at 700-800°C for 30-60 minutes, second annealing at 500-700°C for 30-240 minutes). These parameter optimizations resolve the contradiction by achieving superior Young's modulus without excessively complicating the manufacturing process
2Strength
If conventional manufacturing method is used, then manufacturing time is short, but Young's modulus and running distance performance are poor
Solution Approach 1:
The aging heat treatment performed before hot rolling serves as a preliminary action that optimizes the material properties in advance. This pre-treatment reduces the need for extended processing times during subsequent operations, achieving Young's modulus greater than 119 GPa while controlling overall manufacturing time
Solution Approach 2:
By optimizing the aging heat treatment parameters (650-750°C for 10-12 hours) and alloy composition, the patent achieves faster processing cycles compared to conventional methods. The optimized parameters enable the material to reach desired mechanical properties more efficiently, resolving the time-performance contradiction
3Strength
If titanium alloy composition is optimized for higher Young's modulus, then running distance performance improves, but manufacturing cost increases
Solution Approach 1:
The patent optimizes alloy composition parameters within specific ranges (aluminum: 7-9.5 wt%, vanadium: 0.5-2 wt%, silicon: 0.05-0.4 wt%) rather than using excessive amounts of expensive alloys. This parameter optimization achieves Young's modulus greater than 119 GPa while controlling material costs, resolving the contradiction between performance and manufacturing cost
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method significantly increases the Young's modulus of the golf club head, resulting in increased ball speed and decreased spin, thereby enhancing the running distance of the golf ball.
Implementation Method 1
the sheet material is aging heat treated at 650-750° C. for 10-12 hours to obtain an aging heat treated sheet material
Implementation Method 2
the striking plate is annealed at 700-800° C. for 30-60 minutes to obtain an annealed striking plate
Implementation Method 3
the semi product is annealed at 500-700° C. for 30-240 minutes to obtain a golf club head
Data Source
AI summary
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.