Golf Club Head Laser Ablation for Stronger Adhesive Bonding
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Solution Overview
Problem
Modern golf club heads with multi-piece and multi-material constructions face challenges in maintaining a strong bond between components, which affects durability and performance over time, especially under repeated high-force impacts.
Innovation Solution
A method of making a golf club head involves laser ablating a second-part surface to form a non-planar ablated surface, and then bonding a first-part surface to this ablated surface using an adhesive, optimizing the surface structure for stronger adhesive bonds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If adhesive bonding is used to join multi-piece golf club head components, then manufacturing flexibility and material selection are improved, but bond strength and durability under repeated high-force impacts deteriorate
Solution Approach 1:
The patent applies preliminary action by treating the bonding surfaces with laser ablation before adhesive application. This pre-treatment creates a roughened surface topology with increased surface area and enhanced mechanical interlocking capability, ensuring the bond will withstand repeated high-force impacts during the club's service life.
Solution Approach 2:
The patent applies local quality by selectively treating only the bonding surfaces with laser ablation while leaving other surfaces unchanged. The ablation creates localized surface modifications including peaks and valleys that specifically enhance adhesive bonding at the joint interfaces without affecting the bulk properties of the club head components.
2Reliability
If bond strength is increased to improve durability, then reliability is improved, but other performance characteristics such as moment-of-inertia and center-of-gravity location may deteriorate
Solution Approach 1:
The laser ablation treatment is applied locally only to the bonding surfaces rather than throughout the entire component. This localized modification enhances bond strength at the joints while preserving the overall mass distribution, moment-of-inertia, and center-of-gravity characteristics of the club head components.
Solution Approach 2:
The patent applies partial action by treating only the specific bonding surfaces that require enhanced adhesion, rather than modifying the entire component. The ablation depth and pattern are controlled to provide sufficient bonding enhancement without excessive material removal that would alter the component's performance characteristics.
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 enhances the strength and reliability of the bond between the club head components, improving durability and maintaining performance characteristics such as stiffness and load transfer, even under repeated high-force impacts.
Implementation Method 1
laser ablating a second-part surface of a second part of the golf club head, such that a second-part ablated surface is formed in the second part
Data Source
AI summary
Disclosed here is a method of making a golf club head. The method comprises steps of laser ablating a second-part surface of a second part of the golf club head such that a second-part ablated surface is formed in the second part, and bonding together a first-part surface, of a first part of the golf club head, and the second-part ablated surface of the second part of the golf club head.