Forged Iron Golf Club Head With Continuous Grain Flow
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Solution Overview
Problem
There is a demand in the golf club market for improved feel in iron golf clubs, and existing forging methods do not effectively enhance grain flows to achieve this.
Innovation Solution
A method for manufacturing an iron golf club head by forging a single round rod member into a body and neck as a single piece, using dies to control grain flow direction, ensuring grain flows extend continuously from the neck to the toe, with a ratio of grain flows in the head exceeding 97% of those in the raw material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional forging methods are used to manufacture iron golf club heads, then the manufacturing process is relatively simple, but the grain flows are not effectively enhanced and the feel is not sufficiently improved
Solution Approach 1:
The forging process is divided into multiple sequential steps (first forging, second forging, third forging) with each step targeting specific regions of the club head. This segmentation allows precise control over grain flow distribution in different areas, achieving enhanced grain flow patterns without requiring overly complex equipment
Solution Approach 2:
The method applies preliminary forging actions to create initial grain flow patterns before final shaping. By pre-establishing grain flow directions in earlier forging steps, the subsequent steps can build upon this foundation to achieve the desired continuous grain flow from neck to toe, reducing the need for complex final adjustments
2Reliability
If grain flows are extended continuously from neck to toe, then the feel is enhanced, but the manufacturing process becomes more complex
Solution Approach 1:
Each forging step targets specific local regions with customized die configurations. The first forging targets the overall shape, the second focuses on the neck region, and the third emphasizes the toe region. This local quality approach ensures grain flows are optimized in each specific area while maintaining continuity across the entire club head, achieving enhanced feel without requiring all dies to be equally complex
3Manufacturing precision
If a single round rod member is forged into a single piece body and neck, then grain flows are enclosed effectively around the ball striking portion, but the manufacturing precision required is higher
Solution Approach 1:
The multi-step forging process maintains continuous grain flow action throughout the manufacturing sequence. Each forging step continues and extends the grain flow patterns established in previous steps, ensuring uninterrupted grain flow paths from the neck through the ball striking portion to the toe. This continuity encloses grain flows effectively around critical regions while breaking down the high precision requirement into manageable sequential operations
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 effectively encloses grain flows around the ball striking portion, enhancing feel by increasing the duration of the ball hitting sound and providing a more excellent playing experience.
Implementation Method 1
a third step of forging the heated material placed in the pair of dies
Implementation Method 2
the heated material blocked at the sole side in the pair of dies flows toward each of a toe of the body and the neck in the pair of dies
Data Source
AI summary
Provided is a method for manufacturing an iron golf club head by forging a single round rod member with a pair of dies to form, as a single piece, a body and a neck into which a shaft is to be inserted. The method includes: a first step of heating the single round rod member into a heated material; a second step of placing the heated material in the pair of dies; and a third step of forging the heated material placed in the pair of dies. In the third step, the heated material is prevented from flowing out from parting surfaces of the respective dies at a sole side of the body in the pair of dies, and the heated material blocked at the sole side in the pair of dies flows toward each of a toe of the body and the neck in the pair of dies.