JG02 Gradient Tungsten Carbide Rod for Carbide Drill Bits Manufacturing

Advanced Carbide Material for High Performance Drilling Tools

Carbide drills are widely used in modern manufacturing industries because they provide excellent hardness, high cutting speed, and outstanding machining accuracy. With the continuous development of CNC machining technology, drilling applications are becoming more demanding. Customers require drill tools that can achieve longer service life, higher processing efficiency, and better stability under difficult working conditions.

However, traditional tungsten carbide drill blanks often face a performance limitation. A carbide drill needs different material characteristics in different areas.

The cutting edge of a drill requires:

• High hardness

• Excellent wear resistance

• Strong thermal stability

• Good edge retention

The drill shank requires:

• High toughness

• Strong fracture resistance

• Excellent bending strength

• Vibration resistance

Conventional carbide drill rods normally use a uniform material structure. The entire carbide rod has the same hardness and toughness, making it difficult to achieve the ideal performance balance.

If the carbide grade is selected with higher hardness, the drill cutting performance improves, but the drill becomes more brittle and easier to break.

If the carbide grade focuses on toughness, the drill becomes stronger, but the cutting edge may wear faster and reduce machining efficiency.

To solve this problem, JINXIN developed the JG02 Gradient Tungsten Carbide Rod for Carbide Drill Manufacturing.

The JG02 Gradient Tungsten Carbide Rod uses innovative gradient carbide technology to create different performance zones inside one carbide blank.

The cutting area provides high hardness and excellent wear resistance.

The shank area provides higher toughness and fracture strength.

This advanced structure allows carbide drill manufacturers to produce tools with better reliability and longer working life.

Innovative Gradient Structure for Drill Performance Improvement

Different Areas, Different Functions

The biggest advantage of JG02 Gradient Tungsten Carbide Rod is the optimized material distribution.

Traditional carbide drill blanks use one carbide grade from one end to another. This manufacturing method cannot fully optimize the requirements of modern drilling tools.

JG02 introduces a gradient material structure.

The cutting section is optimized for:

High Hardness Performance

During drilling operations, the cutting edge directly contacts the workpiece material. Continuous friction generates high temperature and mechanical wear.

The high hardness cutting zone of JG02 helps maintain:

• Sharp cutting edge

• Lower wear rate

• Stable hole accuracy

• Longer tool life

The shank section is optimized for:

Higher Fracture Resistance

During drilling, especially deep hole drilling, interrupted drilling, and high-speed machining, the tool receives repeated impact loads.

The stronger shank structure improves resistance against:

• Sudden breakage

• Bending stress

• Machine vibration

• Unstable cutting conditions

The combination of high hardness and high strength makes JG02 an ideal material for professional carbide drill manufacturers.

Mechanical Properties of JG02 Carbide Drill Blank

The JG02 Gradient Tungsten Carbide Rod has been specially developed for precision cutting tools.

Typical properties:

High Hardness for Better Drilling Performance

Hardness is one of the most important properties for carbide drill materials.

During drilling operations, the cutting edge must continuously resist abrasion from the workpiece material.

The hardness level of JG02 reaches:

HRA 91.5-92

This performance provides:

• Excellent wear resistance

• Stable cutting geometry

• Reduced edge rounding

• Better surface quality

For customers producing precision drills, maintaining cutting edge sharpness is essential for improving machining accuracy.

High Strength Design Reduces Drill Breakage

Drill breakage is one of the biggest challenges in carbide drilling applications.

Common causes include:

• Excessive cutting force

• Poor vibration control

• Unstable machine conditions

• Incorrect carbide grade selection

• High impact during machining

JG02 Gradient Tungsten Carbide Rod provides a stronger structure with:

TRS ≥3600 MPa

The high transverse rupture strength improves:

• Resistance to bending

• Impact durability

• Tool reliability

• Machining safety

Especially for small diameter drills, where breakage risk is higher, JG02 provides significant advantages.

Applications of JG02 Carbide Drill Rod

JG02 is suitable for manufacturing various carbide drilling tools.

Solid Carbide Twist Drills

Used for:

• CNC machining

• Precision hole drilling

• High-speed drilling

The excellent balance of hardness and strength improves drilling stability.

PCB Micro Drills

Used in:

• Electronics industry

• Circuit board manufacturing

• Precision micro machining

JG02 helps reduce tool breakage during high-speed rotation.

Deep Hole Drills

Deep hole drilling requires excellent rigidity and vibration resistance.

JG02 provides:

• Stable performance

• Better straightness

• Longer service life

Cooling Hole Drills

Suitable for:

• Automotive components

• Mold parts

• Aerospace components

Suitable Materials for Drilling

JG02 carbide drill blanks are suitable for processing:

Stainless Steel

The wear-resistant cutting edge provides longer tool life.

Alloy Steel

The high strength structure improves machining stability.

Hardened Steel

The high hardness area maintains cutting performance.

Cast Iron

The stronger shank reduces cracking risk.

Titanium Alloy

The excellent thermal stability supports difficult machining.

Aluminum Alloy

The sharp cutting edge improves surface finish.

Manufacturing Process of JG02 Carbide Rod

JINXIN uses advanced production technology to ensure stable carbide quality.

Main production processes include:

Raw Material Selection

High-quality tungsten carbide powder and cobalt binder are selected to ensure consistent performance.

Powder Mixing

Advanced mixing technology provides uniform material distribution.

Precision Pressing

The carbide blank is pressed under controlled conditions to achieve stable density.

HIP Sintering

Hot Isostatic Pressing technology improves:

• Density

• Strength

• Internal structure stability

Precision Grinding

Professional grinding equipment ensures:

• Accurate diameter

• Smooth surface

• Tight tolerance

OEM Carbide Drill Blank Supplier

JINXIN provides customized carbide rod solutions for global drill manufacturers.

Available services:

• Custom diameter

• Custom length

• Special tolerance

• Ground carbide rods

• Polished carbide rods

• OEM packaging

• Private label production

Common applications:

• Carbide drill bits

• Step drills

• Micro drills

• PCB drills

• Deep hole drills

Why Choose JG02 Gradient Tungsten Carbide Rod?

Compared with ordinary carbide drill rods, JG02 offers:

Better Balance

Hardness and toughness are optimized together.

Longer Tool Life

Reduced wear and reduced breakage.

Higher Productivity

Higher cutting stability allows improved machining efficiency.

Better Cost Performance

Longer service life reduces overall tooling cost.

FAQ

What is JG02 Gradient Tungsten Carbide Rod?

JG02 is a new generation gradient carbide material developed for high-performance cutting tools. The carbide rod combines a stronger shank with a harder cutting area.

Can JG02 be used for carbide drills?

Yes. JG02 is specially suitable for manufacturing solid carbide drills, micro drills, deep hole drills, and precision drilling tools.

What makes JG02 different from normal carbide rods?

Normal carbide rods have uniform properties. JG02 uses gradient technology to provide different performance characteristics in different areas.

What hardness does JG02 have?

JG02 hardness is HRA 91.5-92.

What is the strength of JG02?

The transverse rupture strength reaches 3600 MPa or above.

Can you produce customized carbide drill blanks?

Yes. JINXIN supports customized diameter, length, tolerance, and packaging according to customer requirements.