Co-forged Golf Club Head Monolithic Weight Integration
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Solution Overview
Problem
Current golf club head manufacturing methods require post-manufacturing operations like machining, welding, and swaging to incorporate multiple materials, leading to tolerance issues and a compromised feel due to the introduction of secondary materials, which are costly and difficult to maintain.
Innovation Solution
A co-forged golf club head is created using a pre-form billet with cavities filled with different materials, then forged to encase weight adjustment portions monolithically within the body, eliminating the need for secondary attachment operations and ensuring consistent material properties for co-forging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple materials are introduced into the golf club head after the body has been completed, then the mass properties and forgiveness can be improved, but the tolerances of the interfaces between different materials cause undesirable side effects of altering the feel of the golf club head
Solution Approach 1:
The patent applies preliminary action by incorporating the weight adjustment portions into the golf club head body during the forging process itself, rather than adding them afterward. The pre-form billet is prepared with cavities containing the secondary material before forging, ensuring the materials are integrated in advance. This prevents interface tolerance issues that would occur with post-manufacturing operations while still achieving the desired mass property adjustments for improved forgiveness.
2Adaptability or versatility
If post manufacturing operations such as machining, welding, swaging, and gluing are used to incorporate multiple materials, then the golf club head can achieve multi-material construction, but the process becomes costly and difficult to maintain with tolerance issues
Solution Approach 1:
The patent merges the multi-material construction process with the primary forging operation. Instead of using separate post-manufacturing operations to incorporate secondary materials, the invention integrates weight adjustment portions into the forging process itself. The pre-form billet with embedded cavities containing secondary material is forged together with the primary material in a single operation, eliminating the need for subsequent machining, welding, swaging, or gluing operations.
Solution Approach 2:
The patent employs composite materials by combining a primary material (such as steel or stainless steel) with secondary materials (such as tungsten, lead, or other dense materials) within a single forged component. The composite structure is created by placing the secondary material into cavities in the pre-form billet before forging, resulting in a unified multi-material golf club head that achieves both versatility and manufacturing efficiency.
3Strength
If secondary materials are added to the golf club head, then the Moment of Inertia can be enhanced for better forgiveness, but visible seams or joints compromise the solidness and feel of the club head
Solution Approach 1:
The patent applies the nested doll principle by placing the secondary material-containing cavities inside the primary material structure during forging. The weight adjustment portions are nested within the golf club head body, with the secondary materials positioned inside cavities that are formed and then filled before the final forging operation. This nested arrangement allows the secondary materials to be fully enclosed within the primary material, creating a unified structure without visible seams or joints that would compromise the solid appearance and feel.
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
This method produces a golf club head with improved forgiveness and feel by maintaining the solidness of a unitarily formed club head without the need for post-manufacturing operations, enhancing the Moment of Inertia and Center of Gravity without visible seams or joints.
Implementation Method 1
A co-forged golf club head is created using a pre-form billet with cavities filled with different materials, then forged to encase weight adjustment portions monolithically within the body
Data Source
AI summary
A co-forged iron type golf club is disclosed. More specifically, the present invention discloses a co-forged iron type golf club with the body portion made out of a first material and at least one weight adjustment portion monolithically encased within the body portion of the co-forged iron type golf club head without the need for secondary attachment or machining operations. The present invention creates of an iron type golf club head from a pre-form billet that already contains two or more materials before the actual forging process resulting in a multi-material golf club head that doesn't require any post manufacturing operations such as machining, welding, swaging, gluing, and the like.