Welcome to MN Wire Dies! Today, we will take you on a journey through the high-precision wire drawing die manufacturing process. From the production of polycrystalline diamond (PCD) blanks to precision inner hole processing and strict quality inspection, every step is meticulously controlled to ensure our dies provide exceptional durability and ultra-high precision, supporting industries worldwide.
Step 1: Polycrystalline Diamond (PCD) Blank Manufacturing
One of the core materials in wire drawing dies is Polycrystalline Diamond (PCD), which is sintered under ultra-high temperature and pressure using high-purity diamond micro-powder. This process results in superior hardness and excellent wear resistance.
High-quality synthetic diamond micro-powder is carefully blended to meet the requirements for different metal wire drawing applications.
— Ultra-High Temperature & High-Pressure Sintering
The diamond powder is sintered in a six-sided press at temperatures exceeding 1500°C and pressures above 50,000 atmospheres, forming a strong and durable PCD material.
— PCD Blank Cutting & Grinding
The sintered PCD blanks are then precision-cut and ground to ensure structural stability before further processing.
Step 2: Die Case Processing & Bonding
To ensure structural strength and precision, the PCD blank must be securely bonded to a matching die case.
— CNC Precision Machining
High-precision CNC machines are used to manufacture the die cases with strict dimensional tolerances and smooth surfaces, optimizing the die’s lifespan.
— Blank Bonding Process
The PCD blank is ultrasonically cleaned to remove impurities before being bonded using high-temperature sintering or cobalt-based bonding agents, ensuring a strong and impact-resistant structure.
— Pre-Opening Treatment
Before inner hole processing, the bonded die undergoes alignment adjustments and internal cleaning, preparing it for the next steps.
Step 3: High-Precision Inner Hole Processing
The accuracy of the inner hole is critical for wire drawing quality, making this a key processing stage.
— Laser Drilling
A high-energy laser beam is used to create the initial hole with micron-level precision, minimizing thermal damage.
— Pre-Shaping & Rough Grinding
The inner hole is then rough-ground to bring it closer to the desired diameter, removing excess material.
— Fine Grinding
Further grinding ensures the exact hole diameter with an ultra-smooth surface, critical for consistent wire drawing performance.
— Final Polishing
The die’s inner hole undergoes ultra-precision polishing, achieving a mirror-like smoothness, which reduces friction and enhances wire drawing efficiency while extending the die’s lifespan.
Step 4: Strict Quality Inspection
To guarantee that every die meets the highest standards, we implement a rigorous quality inspection process.
— Dimensional Inspection
Optical measurement devices and Coordinate Measuring Machines (CMM) are used to verify inner hole dimensions with a ±0.001mm tolerance.
— Surface Finish Inspection
Using high-magnification microscopes and surface roughness testers, we ensure the die’s inner surface achieves a mirror-like finish for minimal wire friction.
— Wear Resistance & Durability Testing
Each die undergoes simulated wire drawing tests to confirm its abrasion resistance and long-term durability under high-production environments.
— Final Approval
Only fully inspected and approved dies are packaged and shipped worldwide, ensuring every MN Wire Die meets international precision standards.
With advanced manufacturing techniques and strict quality control, MN Wire Dies delivers high-performance wire drawing dies to industries such as steel wire, copper wire, aluminum wire, and cable manufacturing, earning the trust of customers worldwide.
If you need high-precision, long-lasting wire drawing dies, visit MN Wire Dies‘ official website: mnwiredie.com for professional and reliable solutions!
