Multi-Piece Golf Club Head Bonding for Durable Mass Distribution
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Solution Overview
Problem
Conventional multi-piece golf club heads face challenges in maintaining strong and durable bonds between pieces, leading to degradation and reduced performance due to high impact forces, while welding limits discretionary mass distribution.
Innovation Solution
A golf club head constructed with a hollow interior cavity and bonded together using adhesive bonding tape, enhancing the bond strength and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding is used to bond pieces together, then bond strength and durability are improved, but discretionary mass distribution is limited
Solution Approach 1:
The patent replaces the welding process with an adhesive bonding system that uses a multi-layer tape structure. This substitution allows for stronger bonds without the mass constraints of welding, as the adhesive layers can be optimized for bonding strength while using minimal material mass compared to welding processes.
Solution Approach 2:
The patent employs a composite bonding system consisting of multiple layers including a first bonding layer, a reinforcement layer, and a second bonding layer. This composite structure provides enhanced bond strength and durability while maintaining flexibility in mass distribution, as each layer can be independently optimized for its specific function.
2Adaptability or versatility
If adhesive bonding is used instead of welding, then discretionary mass distribution is improved, but bond durability may be reduced
Solution Approach 1:
The patent applies a primer layer to the first piece before applying the bonding tape. This preliminary action prepares the surface to enhance adhesion and durability, ensuring that the adhesive bonding system achieves welding-level bond strength while maintaining the mass distribution advantages of adhesive bonding.
Solution Approach 2:
The multi-layer composite bonding system includes a first bonding layer, reinforcement layer, and second bonding layer that work together to provide enhanced durability. The reinforcement layer specifically addresses the durability concern by adding structural strength to the adhesive bond, making it suitable for high-impact applications.
3Ease of manufacture
If multiple pieces are bonded together, then manufacturing flexibility is improved, but bond degradation under high impact forces occurs
Solution Approach 1:
The patent applies a primer layer to the first piece before bonding, which prepares the surface to resist degradation from high impact forces. This preliminary surface preparation ensures that the adhesive bond maintains its integrity under repeated impact conditions, addressing the durability concern while preserving manufacturing flexibility.
Solution Approach 2:
The composite bonding structure with multiple layers provides enhanced resistance to impact forces. The reinforcement layer specifically contributes to durability under impact by adding structural strength, allowing the multi-piece construction to maintain manufacturing flexibility while withstanding the forces of repeated ball impacts.
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 adhesive bonding technique provides a strong and durable connection, maintaining performance over time and allowing for increased discretionary mass distribution.
Implementation Method 1
The first piece is adhesively bonded to the second piece, via bonding tape, along a bonded joint
Data Source
AI summary
A golf club head and a method of making the golf club head including bonding tape. The method additionally includes positioning the first piece, the second piece, and the bonding tape, interposed between the first piece and the second piece, in a vacuum bag, and reducing a pressure within the vacuum bag, relative to a pressure external to the vacuum bag, such that the vacuum bag collapses onto the first piece and the second piece and compresses the bonding tape between the first piece and the second piece. The method also includes heating the bonding tape, at least to a curing temperature of the bonding tape, when the pressure within the vacuum bag is reduced.