Introduction
In the world of golf, the quality of your irons can make or break your game. Forged irons, known for their superior feel, control, and consistency, are the preferred choice of many low-handicap players. But have you ever wondered how these precision instruments are made?
At Shenzhen cusp precision manufacturing Co., Ltd., a leading golf club manufacturer in China, we take pride in crafting high-performance forged irons through a meticulous production process. From initial design to final assembly, every step is executed with precision engineering and strict quality control. Here’s an inside look at how our forged irons come to life.
- Step 1: 3D Iron Design – Where Performance Meets Aesthetics
Before any physical manufacturing begins, our engineers and designers collaborate to create a 3D CAD model of the iron head. Using advanced software, we optimize:
- Center of Gravity (CG) placement for better launch and control
- Face thickness for optimal ball speed and forgiveness
- Sole grind for turf interaction and playability
- Overall weight distribution for a balanced feel
This digital prototype undergoes simulation testing to ensure performance before moving to the next stage.
- Step 2: Crafting the Forging Die – The Foundation of Precision
Once the design is finalized, we manufacture a high-strength steel forging die. This mold must withstand extreme pressure and repeated use while maintaining exact specifications.
- The die is CNC-machined from hardened tool steel
- Each cavity is polished to ensure smooth metal flow during forging
- Strict tolerance checks (within ±0.1mm) ensure consistency
A single die can produce thousands of iron heads before needing replacement.
- Step 3: Forging the Iron Head – Strength Through Compression
Forging, unlike casting, compresses the metal grain structure, resulting in a denser, more responsive clubhead. Our process involves:
- Heating the Steel – Typically 1020 or 1025 carbon steel is heated to 1,100°C (2,012°F) for optimal malleability.
- Precision Forging – The heated billet is pressed into the die under hundreds of tons of hydraulic pressure, shaping the basic iron head.
- Secondary Forging (if needed) – Some designs require multiple forging stages to refine the shape.
- Trimming Excess Material – Flash is removed, leaving a near-net-shape head.
Forged heads are then slowly cooled to relieve internal stresses.
- Step 4: CNC Milling – Perfecting the Details
While forging creates the basic shape, CNC milling refines critical areas:
- Face milling for consistent grooves and surface roughness
- Sole and hosel adjustments for precise weighting
- Custom grind options (leading edge, bounce, etc.)
- Tight tolerances (within ±0.05mm) ensure uniformity
Our 5-axis CNC machines allow for complex shaping while maintaining structural integrity.
- Step 5: Custom Branding – Laser Engraving or CNC Etching
Every iron gets its unique identity through:
- Laser engraving for sharp, permanent logos and text
- CNC milling for deeper, tactile branding (e.g., muscle back designs)
- Custom paintfill options for personalization
This step ensures brand recognition while maintaining a premium finish.
- Step 6: Surface Finishing – Beauty and Durability
The final aesthetic and protective layer is applied via:
- Polishing (mirror, satin, or brushed finishes)
- Plating (chrome, nickel, or black PVD for corrosion resistance)
- Alternative coatings (DLC, Cerakote, or raw rust finishes for wedges)
Each finish is tested for durability and resistance to wear.
- Step 7: Assembly – The Final Touch
Before shipping, each iron undergoes:
- Shaft installation (steel or graphite, custom trimmed)
- Grip fitting (custom sizing and alignment)
- Swing weight matching (±0.5g tolerance)
- Final quality inspection (loft, lie, and face angle checks)
Conclusion: Precision Forged for Performance
At Shenzhen cusp precision manufacturing Co., Ltd., we combine traditional forging techniques with modern CNC precision to create irons that deliver exceptional feel and control. Whether you’re a professional golfer or an avid enthusiast, our irons are engineered to elevate your game.
Interested in custom forged irons? Contact us today to discuss your specifications!