Precision Tungsten Carbide Die With Smooth Concave Arc

Product Overview

Tungsten carbide (WC-Co) dies are hard alloy molds composed of tungsten carbide as the base material and cobalt as the binder. They are widely used in metal stamping, drawing, and forming applications. Key features include:

• Ultra-high hardness (≥90 HRA), with wear resistance far exceeding steel molds;
• High-temperature resistance (operating temperatures up to 600°C+), suitable for high-speed continuous processing;
• Extended lifespan, 5–10 times longer than conventional molds, reducing downtime;
• Precision performance, ideal for precision components (e.g., electrical connectors, micro bearings).

Typical Applications

• Metal drawing dies: For deep drawing of stainless steel, copper alloys, etc.;
• Stamping dies: Precision blanking of high-hardness materials (e.g., silicon steel, titanium alloys);
• Cold forging dies: Bolt/nut cold forming;
• Specialized industries: Aerospace engine components, medical device forming.

Product Advantages

• Custom designs: Support non-standard cavity geometries;
• Surface treatments: Optional mirror polishing (Ra≤0.05μm) or coatings (TiN, DLC) to reduce friction;
• Structural optimization: Pre-stressed ring design prevents cracking under high stress.

Machining Challenge: Precision Concave Arc Fabrication

1. Key Difficulties

• Hard material machining: Tungsten carbide’s hardness (close to diamond) causes rapid tool wear;
• Arc precision requirements: Tight radius tolerances (±0.005mm) and surface finish (Ra≤0.1μm);
• Complex geometries: Deep cavities and multi-radius transitions (e.g., fillets) induce tool vibration/chipping.

2. Solutions

• Specialized processes:
• Slow wire EDM (roughing): Uses Ø0.03mm molybdenum wire, accuracy ±0.002mm;
• EDM sinking (finishing): Custom copper/graphite electrodes with multi-axis machining;
• Diamond grinding (final): Resin-bonded diamond wheels, feed rate ≤1μm/pass.
• Ancillary technologies:
• 3D scanning inspection: Real-time CAD model comparison for path correction;
• Stress-relief heat treatment: Prevents post-machining deformation.

3. Quality Control

• Dimensional inspection: Full-profile CMM scanning;
• Surface integrity: White-light interferometry for micro-crack detection;
• Lifetime testing: Simulated operational fatigue tests.

Zhuzhou Sanxin Cemented Carbide Manufacturing Co.,Ltd is located in Zhuzhou, Hunan Province, which is known as the “Hometown of Cemented Carbide”. It is a national high-tech enterprise that has passed ISO9001:2015 international quality certification system, specializing in manufacturing, research and development of cemented carbide materials and tungsten steel products’ raw material, blank production, tungsten steel precision processing and sales one-stop service.

Zhuzhou Sanxin Cemented Carbide Manufacturing Co.,Ltd inherits and precipitates Zhuzhou cemented carbide tungsten steel processing technology. We have a professional technical team, which lays a solid foundation for manufacturing high quality cemented carbide products. The advantages of cemented carbide products in related fields are obvious. We can provide you with a complete set of cemented carbide products and tungsten steel product solutions.

Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd produces and processes tungsten steel products, selects suitable cemented carbide materials, owns professional customized precision equipment, unique processing technology, implements strict quality control measures of 100% inspection and provides considerate pre-sales and after-sales services. We can produce and process non-standard custom carbide inserts, carbide cutters, carbide molds, carbide fixtures, carbide sheets, carbide rods, hard for customers who need it. Alloy pipe, carbide punching punch, carbide valve seat, carbide insert, cemented carbide nozzle, carbide wear parts, carbide mold parts, and other cemented carbide tungsten steel precision processed products for customers who have needs.

We focus on every process of cemented carbide production and processing, and we are able to meet the needs of our customers' usage requirements on precision tungsten steel processing to the maximum.

Why choose us:

We always implement these business policies of "quality first, customer first"; "both wholesale and retail are welcome, excellent price for large quantity"; "timely delivery, mutual benefit and simultaneous growth with customer " to expand ourselves in the market.

Why rely on us:

We will continue to uphold the concept of “forge ahead”, “focus on innovation”, “based on quality, focus on brand” and “provide products with super-expected value for customers”and make ourselves on the road to development.

Why cooperate with us:

We always adhere to the principle of “quality is life”, “service creates value”, “cooperation promote development”, “support partners, develop ourselves”to cooperate with you for developing together.