Gradient Tungsten Carbide Rod for Solid Carbide Drills Manufacturing

Advanced Carbide Blank Material for High Performance Drilling Tools

Solid carbide drills are widely used in modern CNC machining industries because they provide excellent drilling accuracy, high cutting speed, and long service life.

From automotive manufacturing to aerospace components, from electronics production to precision mold processing, drilling operations require tools with stable performance under demanding conditions.

The carbide rod is the core material used for manufacturing solid carbide drills.

The quality of the carbide rod directly influences:

• Drill strength

• Cutting stability

• Hole accuracy

• Tool life

• Production efficiency

With the development of high-speed CNC drilling technology, traditional carbide drill blanks face increasing challenges.

Modern drilling applications require materials that can withstand:

• High rotational speed

• Strong cutting forces

• Continuous vibration

• High temperature

• Difficult-to-machine materials

Traditional carbide rods usually have uniform material properties.

However, different areas of a solid carbide drill require different performance characteristics.

The cutting edge requires:

• High hardness

• Excellent wear resistance

• Stable cutting performance

The drill body requires:

• High toughness

• Strong bending resistance

• Excellent fracture strength

To overcome the limitations of traditional carbide materials, JINXIN developed:

JG02 Gradient Tungsten Carbide Rod for Solid Carbide Drills Manufacturing

The innovative gradient structure provides optimized performance in different areas.

The cutting section provides:

• High hardness

• Excellent abrasion resistance

• Long edge life

The supporting section provides:

• High strength

• Better impact resistance

• Improved reliability

JG02 provides a new generation carbide solution for high-performance drill manufacturers.

Why Carbide Rod Material Is Important for Drill Performance?

Drilling Creates Complex Mechanical Stress

Compared with milling tools, drills often work under more difficult conditions.

During drilling operations, the tool experiences:

• Axial pressure

• Cutting torque

• Vibration

• Heat accumulation

• Chip evacuation pressure

Especially for small diameter drills, even a small reduction in material strength can cause:

• Drill breakage

• Hole accuracy problems

• Production interruption

Therefore, the carbide rod used for drill manufacturing must achieve an excellent balance between hardness and toughness.

Traditional Carbide Drill Blank Limitations

Conventional carbide drill blanks normally use a uniform material structure.

The entire drill blank has the same:

• Hardness

• Toughness

• Strength

However, actual drilling conditions are different.

The cutting edge needs:

High hardness.

The drill body needs:

High strength.

A single traditional carbide grade cannot perfectly optimize both requirements.

This creates a common industry challenge:

Higher hardness improves wear resistance but may increase brittleness.

Higher toughness improves strength but may reduce cutting efficiency.

JG02 Gradient Carbide Technology Advantage

Optimized Material Performance by Working Area

JG02 Gradient Tungsten Carbide Rod introduces innovative gradient material technology.

The material structure is designed according to the actual stress distribution of the drill.

Cutting Edge Area

High Hardness and Wear Resistance

The cutting area provides:

Hardness HRA 91.5-92

Advantages:

• Longer cutting edge life

• Better wear resistance

• Improved drilling accuracy

• More stable hole quality

Drill Body Area

High Strength and Fracture Resistance

The supporting area provides:

TRS ≥3600 MPa

Advantages:

• Reduced drill breakage

• Better vibration resistance

• Improved reliability

• Longer working life

Applications of JG02 Carbide Rod for Drill

Solid Carbide Twist Drills

Used for:

• CNC drilling centers

• Automatic machining lines

• Precision component production

Advantages:

• Stable drilling performance

• Long tool life

• High accuracy

Small Diameter Micro Drills

Micro drilling requires extremely high material performance.

Applications:

• Electronics

• Precision parts

• Medical components

JG02 improves:

• Drill strength

• Edge stability

• Breakage resistance

Deep Hole Drills

Deep hole drilling requires excellent rigidity and reliability.

JG02 provides:

• Strong supporting structure

• Stable cutting performance

Special Profile Drills

Applications:

• Automotive parts

• Aerospace components

• Customized machining

Materials Suitable for JG02 Carbide Drills

Stainless Steel

Advantages:

• Excellent wear resistance

• Stable drilling performance

Hardened Steel

Benefits:

• High hardness supports difficult machining

Aluminum Alloy

Advantages:

• Sharp cutting edge

• Better hole surface quality

Titanium Alloy

Suitable for:

• Aerospace manufacturing

• High-strength components

Cast Iron

Benefits:

• Improved edge durability

JG02 Drill Material Technical Data

Advantages of JG02 Solid Carbide Drill Blank

1. Improved Drill Life

High hardness cutting area reduces wear.

2. Reduced Tool Breakage

High strength structure improves reliability.

3. Better Hole Accuracy

Stable cutting performance improves machining precision.

4. Higher Productivity

Longer tool life reduces downtime.

5. Lower Machining Cost

Reduced tool replacement improves cost efficiency.

Applications in Different Industries

Automotive Industry

Applications:

• Engine components

• Transmission parts

• Precision mechanical parts

Aerospace Industry

Applications:

• Aluminum structures

• Titanium components

• Precision assemblies

Electronics Industry

Applications:

• Small precision holes

• Micro components

Mold Industry

Applications:

• Mold plates

• Precision tooling

Manufacturing Process of JG02 Carbide Drill Rod

JINXIN controls the entire production process.

Raw Material Selection

High-quality tungsten carbide powder ensures:

• Stable hardness

• Reliable performance

• Uniform structure

Powder Mixing

Advanced technology provides:

• Consistent composition

• Stable material properties

Precision Forming

Controls:

• Diameter accuracy

• Density

• Internal structure

HIP Sintering

Improves:

• Strength

• Density

• Reliability

Precision Grinding

Provides:

• Accurate dimensions

• Smooth surface

• Tight tolerance

Customized Carbide Drill Blank Service

JINXIN supports OEM production according to customer requirements.

Diameter Customization

Available sizes:

• 3mm

• 4mm

• 5mm

• 6mm

• 8mm

• 10mm

• Customized sizes

Length Customization

Available according to:

• Drill design

• Customer drawings

• Production requirements

Tolerance Requirements

Support:

• h5

• h6

• Special tolerance

Surface Treatment

Available:

• Precision grinding

• Polishing

• Chamfering

Why Choose JG02 Gradient Tungsten Carbide Rod?

Innovative Material Structure

Gradient carbide technology provides better performance balance.

High Cutting Performance

Excellent hardness improves drilling efficiency.

Strong Mechanical Reliability

High TRS reduces unexpected failures.

Suitable for Difficult Machining

Designed for modern CNC drilling applications.

Professional Carbide Manufacturer

JINXIN provides complete carbide material solutions.

JINXIN Carbide Manufacturing Capability

JINXIN specializes in:

• Tungsten carbide rods

• Carbide blanks

• Wear-resistant components

• Customized carbide products

Professional production capability includes:

• Material development

• Precision manufacturing

• Quality inspection

• OEM service

JINXIN provides reliable carbide solutions for global tool manufacturers.

FAQ

What is carbide rod for drill?

Carbide rod for drill is the tungsten carbide blank material used to manufacture solid carbide drills.

Why choose JG02 for drill manufacturing?

JG02 provides a balance of high hardness and high strength, improving drill life and reliability.

Can JG02 drill stainless steel?

Yes. JG02 is suitable for stainless steel and other difficult machining materials.

What is the hardness of JG02?

JG02 hardness is HRA 91.5-92.

What is the TRS of JG02 carbide rod?

The transverse rupture strength reaches 3600 MPa or above.

Can you customize carbide drill blanks?

Yes. JINXIN supports customized diameter, length, tolerance and packaging.