Golf Club Head Weight Optimization via Segmentation
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Solution Overview
Problem
Current golf club heads do not effectively optimize the center of gravity (CG) and moment of inertia (MOI) to achieve desired trajectory and spin rates, particularly in optimizing perimeter weighting and distributing mass for improved launch angles and spin control.
Innovation Solution
The golf club head design incorporates multiple weight portions made of different materials, such as tungsten-based and steel-based materials, strategically positioned to optimize the CG and MOI, with a hollow body and interior cavity filled with elastic polymers to enhance feel and sound, and a face portion with varying thickness and grooves for optimal impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple materials are used to manufacture golf club heads, then the center of gravity and moment of inertia can be optimized to produce certain trajectory and spin rate, but the device complexity increases
Solution Approach 1:
The golf club head is divided into multiple material regions with different densities and properties. A hollow body portion is created with strategic material distribution, allowing independent optimization of center of gravity and moment of inertia zones without requiring a completely multi-component construction.
Solution Approach 2:
The patent employs composite construction by combining hollow body portions with solid material sections, and later adding polymer infill materials. This creates a multi-material system that achieves desired CG and MOI characteristics while managing the complexity through integrated design rather than separate components.
2Manufacturing precision
If weight portions are strategically positioned to optimize CG and MOI, then launch angle and spin control are improved, but the manufacturing process becomes more complex
Solution Approach 1:
The hollow body portion is formed during the primary manufacturing process (casting or molding) with pre-determined wall thickness variations that strategically position mass. This preliminary mass distribution establishes the foundation for CG and MOI optimization before any secondary operations, reducing the need for post-manufacturing weight adjustments.
Solution Approach 2:
The patent utilizes variations in wall thickness as a controllable parameter during manufacturing. By changing the thickness parameters of the hollow body portions in specific regions, the mass distribution is optimized for desired CG and MOI without requiring separate weight port operations or additional component assembly.
3Manufacturing precision
If the face portion thickness is varied for optimal impact, then ball launch and spin are optimized, but the structural integrity may be compromised
Solution Approach 1:
The face portion is designed with non-uniform thickness distribution where thinner regions are strategically placed in impact zones to optimize ball interaction and launch conditions, while thicker regions are positioned in non-impact areas to maintain structural strength and durability. This local variation in quality achieves performance optimization without compromising overall integrity.
Data Source
AI summary
Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion with a face portion, a toe portion, a top portion, a sole portion, and a back portion with at least one weight portion. The golf club head may include an interior cavity. The golf club head may include face markings on the face portion that include a first set of markings extending between the toe portion and the heel portion and a second set of markings extending between the top portion and the sole portion. Other examples and embodiments may be described and claimed.