Composite Golf Club Head Structure for CG and MOI Tuning
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Solution Overview
Problem
Existing golf club heads face challenges in optimizing the center of gravity (CG) and moment of inertia (MOI) to enhance launch angle, spin rate, and direction consistency, which are influenced by the type of golf swing.
Innovation Solution
The golf club head design incorporates a forward portion, crown portion, and top stiffening elements to improve structural integrity, reduce deflection, and enhance aerodynamic performance, using materials like titanium and composite materials, with specific dimensions and configurations to optimize CG and MOI.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the golf club head uses traditional materials and structure, then manufacturing is simpler, but structural integrity and deflection resistance are insufficient
Solution Approach 1:
The golf club head employs a composite construction combining titanium alloy (e.g., Ti-6Al-4V) for the main body with carbon fiber reinforced polymer (CFRP) for the crown and sole portions. This composite material approach achieves superior structural integrity and deflection resistance while maintaining an optimized center of gravity position, resolving the contradiction between strength and structural complexity.
Solution Approach 2:
The club head is divided into multiple segments including the body portion, crown portion, sole portion, and forward portion, each made from optimally suited materials. This segmentation allows each component to contribute specifically to overall structural integrity while enabling precise control of the center of gravity position and moment of inertia.
2Reliability
If the club head design optimizes CG and MOI for specific swing types, then performance is improved, but adaptability to different swing types decreases
Solution Approach 1:
The club head incorporates locally optimized features including a forward portion with specific weight distribution, adjustable weight ports in the sole portion, and strategically placed stiffening elements. These local quality modifications enable tuning of the center of gravity position and moment of inertia to achieve consistent performance across different swing types without requiring complete redesign.
3Weight of moving object
If the crown portion is made thin and lightweight, then weight reduction is achieved, but structural integrity and deflection resistance deteriorate
Solution Approach 1:
The crown portion utilizes carbon fiber reinforced polymer (CFRP) composite material that provides high strength-to-weight ratio. This allows the crown to be made thin and lightweight for weight reduction while maintaining superior structural integrity and deflection resistance through the inherent properties of the composite material.
4Manufacturing precision
If traditional manufacturing methods are used, then manufacturing simplicity is maintained, but manufacturing precision and consistency deteriorate
Solution Approach 1:
The club head employs pre-formed composite crown and sole portions manufactured separately with high precision before assembly to the titanium body. This preliminary action approach allows each component to be manufactured with optimal precision using appropriate processes (e.g., autoclave curing for composites, CNC machining for titanium), ensuring dimensional consistency while managing manufacturing complexity through modular construction.
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 having a front portion, a rear portion, a toe portion, a heel portion, a top portion, a bottom portion, a face portion, and a periphery. The bottom portion may include a forward portion and a rear protrusion at or proximate the rear portion. A recessed portion is positioned between the forward portion and the rear protrusion and includes a plurality of contoured transition regions defining an opening. A shoulder portion is adjoined to the plurality of contoured transition regions. One or more connecting members extend across the opening to adjoin opposing portions of the shoulder portion. Other examples and embodiments may be described and claimed.