3D-Printed Golf Club Head Lattice for CG and MOI Tuning

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Solution Overview

Problem

Conventional golf club head manufacturing processes are limited in customization and geometric flexibility, unable to leverage performance advantages from various club head types due to mold constraints and geometric limitations, restricting center of gravity (CG) location and complex geometries.

Innovation Solution

Golf club heads manufactured via 3D printing or additive manufacturing techniques, incorporating a lattice structure within the club head body, allowing for customizable CG location and complex geometries, with features like a segmented or lattice portion formed integrally with the club head body.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional forging or casting processes are used to manufacture golf club heads, then the manufacturing process is well-established and reliable, but the ability to customize center of gravity location and create complex geometries is significantly limited due to mold constraints

Engineering Contradiction:

Improvecustomization of center of gravity locationVSAvoidmanufacturing process complexity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent applies parameter changes by utilizing additive manufacturing technology to fundamentally alter the manufacturing approach from conventional forging/casting. This enables continuous adjustment of center of gravity location through digital modeling and layer-by-layer material deposition, allowing customization of CG position, density distribution, and internal geometries without mold constraints while maintaining manufacturing reliability through controlled additive processes

Inventive Principle:

Principle #35Parameter changes

2Strength

If conventional casting molds are used to create hollow constructions for higher moment of inertia, then the moment of inertia increases, but the geometric limitations prevent leveraging advantages from various club head types and restrict center of gravity location flexibility

Engineering Contradiction:

Improvemoment of inertiaVSAvoidgeometric flexibility

Core Design Contradiction:

StrengthVSAdaptability or versatility

Solution Approach 1:

The patent applies segmentation by dividing the club head into distinct functional zones with different material densities and structural characteristics. Internal cavities and lattice structures are strategically segmented to optimize moment of inertia in specific regions while maintaining geometric flexibility elsewhere, allowing simultaneous achievement of high MOI and customized CG location through region-specific structural design

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent utilizes composite materials by combining different material densities and properties within the same club head structure. Additive manufacturing enables integration of solid metal regions with hollow or lattice-filled regions, creating composite structures that leverage the high MOI benefits of hollow constructions while maintaining the geometric flexibility and customized CG location capabilities of solid constructions

Inventive Principle:

Principle #40Composite materials

Data Source

PatentUS12403362B1Systems and methods for additive manufacturing of a golf club

Publication Date: 2025.09.02 COBRA GOLF INC

AI summary

A golf club head that includes a body that has a topline, a sole, and a front face. The front face defines a rear surface that extends along a plane and the body defines a center of gravity plane. The golf club head also includes a lattice structure formed on a portion of the body, layer by layer, via an additive manufacturing process. The portion of the body is bounded by the plane, the center of gravity plane, and an intersection between the plane and the center of gravity plane.