SDFTools Long-Force Drill Series—Special Tool for Low-Wind Pressure Brazing Tools

I. Product Overview

The SDFTools Long-Force Drill Series—Special Tool for Low-Wind Pressure Brazing Tools is specifically designed for the low-wind pressure brazing tool industry. It is suitable for processing high-hardness materials such as 35/42CrMo, 45CrNiMoV, and 35CrNiMoV, with material surface hardness ranging from HRC 38 to 48. This series offers two forms: cone-bottom and flat-bottom, catering to different processing needs, making it an ideal choice for efficient and precise machining.

II. Application and Characteristics of the Low-Wind Pressure Brazing Tool Industry

1. Industry Background and Applications

Low-wind pressure brazing tools are widely used in mining, tunnel construction, building engineering, and other fields, particularly playing a crucial role in rock breaking and drilling operations. Due to their harsh working environment, heavy load-bearing capacity, and extremely high durability requirements, the manufacturing of low-wind pressure brazing tools imposes stringent demands on materials and processing techniques.

2. Processing Difficulties

1. High Material Hardness : Low-wind pressure brazing tools typically use high-strength alloy steels such as 42CrMo and 45CrNiMoV, with hardness ranging from HRC 38 to 48. Traditional tools struggle to meet the requirements for efficient processing of these materials.
2. High Precision Requirements : Gear hole machining requires extremely high dimensional accuracy and consistency to ensure stable performance after assembly.
3. Complex Geometric Shapes : Brazing tool parts often have complex geometric structures, making it easy to encounter issues such as rough hole walls and deviations in roundness during processing.
4. High Wear Resistance Requirements : Brazing tools undergo strong impacts and wear during use, so their processed surfaces must possess excellent smoothness and durability.

3. Our Advantages

The SDFTools Long-Force Drill Series—Special Tool for Low-Wind Pressure Brazing Tools has been optimized to address the above challenges:

1. High-Hardness Material Machining Capability : Using nano-composite coating technology, it significantly enhances the wear resistance and heat resistance of the tool, enabling it to easily handle materials with hardness ranging from HRC 38 to 48.
2. Outstanding Machining Accuracy : Hole precision reaches IT6IT7, with surface roughness Ra 0.4 1.6 μm. Roundness ≤0.01mm, taper ≤0.01mm, and hole diameter tolerance ≤0.02mm, ensuring stable processing quality.
3. Efficient Machining Efficiency : One-time forming design reduces machining time and tool consumption, significantly improving production efficiency.
4. Multiple Resharpening Capability : With proprietary resharpening technology, the tool can be repeatedly used multiple times, reducing long-term usage costs.

III. Product Specifications and Technical Parameters

1. Drill Tip Form

• Cone-bottom and flat-bottom forms are available to meet different processing needs.
• Cone-Bottom Drill : Suitable for processing scenarios requiring self-centering functionality.
• Flat-Bottom Drill : Suitable for scenarios with high requirements for bottom flatness.

2. Main Cutting Edge Angle

• Angle range: 120°~150°.
• The size of the cutting edge angle affects cutting performance and hole wall quality; larger angles are suitable for hard materials.

3. Drill Tip Radius (R)

• R value range: 0.5~1.5mm.
• Larger R values help improve tool life and reduce cutting force.

4. Cutting Edge Diameter Tolerance

• ≤0.003mm.
• Extremely high dimensional accuracy ensures consistency in hole diameters.

5. Cooling Method

• Internal cooling and external cooling options are available.
• Internal cooling is suitable for deep-hole machining, while external cooling is suitable for shallow holes or scenarios with lower heat dissipation requirements.

6. Surface Treatment

• Nano-composite coating technology.
• Enhances the wear resistance and heat resistance of the tool, extending its service life.

IV. Product Features

1. Precise Machining Accuracy

• Hole precision IT6IT7, surface roughness Ra 0.4 1.6 μm.
• Roundness ≤0.01mm, taper ≤0.01mm, hole diameter tolerance ≤0.02mm.
• High precision ensures processing quality and reduces gear matching errors.

2. Extremely High Product Consistency

• Single product hole diameter difference ≤0.005mm, achieving graded hole diameters.
• Maximizes product quality stability.

3. High Efficiency and Low Cost

• One-time forming improves processing efficiency, saving time and tool costs.

4. Special Resharpening Technology

• After resharpening, the cutting edge diameter fluctuation is small, basically consistent with the new tool dimensions, reducing alloy tooth reserves.

5. Multiple Repeated Resharpening

• Recommended number of resharpenings = (Effective blade length – Hole depth) / 3mm.
• Extends tool service life and reduces usage costs.

V. Processing Examples

Processing of Tooth Holes in Drilling Tools and Drill Bits

VI. Application Scenarios

• Low-Wind Pressure Brazing Tool Industry : Used for processing gear holes in high-hardness materials such as 42CrMo and 45CrNiMoV.
• High-Precision Machining : Suitable for scenarios requiring high precision and consistency.
• High-Efficiency Production : Ideal for manufacturing environments pursuing high production efficiency and low costs.

VII. Frequently Asked Questions (FAQ)

Q: Is this tool suitable for all hardness levels of materials?
A: This product is specifically designed for materials with a hardness range of HRC 38~48. Please select the appropriate tool model based on the specific material hardness.

Q: How many times can the tool be resharpened?
A: The recommended number of resharpenings is (effective blade length – hole depth) / 3mm, but the actual number depends on the specific usage conditions.

Q: How do I choose between internal cooling and external cooling?
A: Internal cooling is suitable for deep-hole machining, while external cooling is suitable for shallow holes or scenarios with lower heat dissipation requirements.

Q: How is the high precision of the tool ensured?
A: We adopt nano-composite coating technology and strict quality control processes to ensure high precision and consistency for each product.

VIII. Purchase and Support

Purchase Consultation : If you have any questions, please contact our sales team. We will provide you with professional technical support and customized solutions.

After-Sales Service : We offer comprehensive after-sales support, including tool resharpening services and technical guidance, to ensure your production runs smoothly.

IX. Conclusion

The SDFTools Long-Force Drill Series—Special Tool for Low-Wind Pressure Brazing Tools boasts high precision, high consistency, and high performance, making it an ideal choice for the low-wind pressure brazing tool industry. Whether it’s precise machining of high-hardness materials or efficient large-scale production, SDFTools provides exceptional solutions. Choose SDFTools for more efficient and accurate production!