Hebei Buteo International Co., Ltd.
Hebei Buteo International Co., Ltd.

How to Weld Diamond Segments to the Substrate More Securely?

Table of Content [Hide]

    Ensuring a durable bond between diamond segments and the blade core is critical for performance and safety in stone cutting. Poor welding can lead to segment detachment, compromising efficiency. Below, we break down the best practices for securing diamond segments to the blade base with maximum reliability—backed by expert techniques.


    Choosing the Right Welding Method for Diamond Segments

    Selecting the proper welding technique directly impacts adhesion strength. Consider:

    • High-Frequency Induction Welding: Delivers rapid, localized heating for consistent granite cutter segment fusing without warping.

    • Laser Welding: Ensures pinpoint accuracy, minimizing thermal distortion in high-end tools.

    • Silver Brazing: Offers flexibility for custom repairs but requires skilled handling.

    Each method has trade-offs—induction welding is ideal for mass production, while laser welding suits precision applications.


    Pre-Welding Surface Preparation – A Must for Strong Bonds

    Neglecting surface prep causes weak joints. Key steps:

    • Grinding the Blade Core: Removing oxidation ensures pure metal-to-metal contact.

    • Applying Flux: Prevents oxidation during heating (crucial for silver brazing).

    • Aligning Segments Properly: Misalignment risks uneven force distribution during cutting.

    Pro Tip: For diamond segments for granite cutting, ultrasonic cleaning enhances bond strength by eliminating microscopic debris.


    Optimal Temperature Control During Welding

    Excessive heat degrades diamond integrity; too little causes incomplete fusion. Best practices:

    • Induction Welding: Maintain 800–900°C (1472–1652°F) for steel cores.

    • Laser Welding: Adjust beam intensity to avoid segment cracking.

    • Using Pyrometers: Ensures real-time monitoring for consistent results.

    Warning: Overheating granite cutting segments weakens the bond matrix, reducing lifespan.


    Post-Weld Treatment for Long-Lasting Adhesion

    A strong weld isn’t the end—proper cooling and finishing prevent failures:

    • Slow Cooling (Annealing): Reduces internal stress in the blade core.

    • Stress-Relief Heating: Balances molecular structure post-welding.

    • Surface Grinding: Smooths welded joints to prevent crack initiation.

    Skipping these steps risks premature segment detachment—especially under heavy loads.


    Testing Welded Diamond Segments for Reliability

    Quality assurance separates good blades from liabilities. Essential checks:

    • Dye Penetrant Testing: Detects invisible cracks at weld seams.

    • Tensile Shear Tests: Confirms bonds withstand forces exceeding operational demands.

    • X-Ray Inspection (for Laser Welds): Validates internal weld integrity.

    Fact: Industrial-grade diamond segments for granite stone should endure at least 500 MPa shear stress post-welding.

    Vivian
    Vivian

    I am Vivian. I have been working in diamond tools for 22 years, having a deep understanding of the global market for diamond tools. I can provide you with professional advice and guidance. Our factory has been engaged in the diamond industry for over 30 years, having a precise grasp of industry trends. We have deep cooperation with 60+clients in over 100+ countries we have collaborated with, continuously improving our products through cooperation with customers. More adaptable to the needs of the market.

    Products
    References
    More News About Diamond Tools
    Feb 11-2025
    Solving the Pain Points in the Concrete Floor Industry: Diamond Concrete Grinding Discs at Your Service
    In European and American countries, concrete floors are widely used in industrial plants, commercial centers, and various public facilities due to their durability and practicality. However, recently,...
    Solving the Pain Points in the Concrete Floor Industry: Diamond Concrete Grinding Discs at Your Service
    Aug 10-2025
    Analysis of Application Scenarios for Concrete Blades for Circular Saw
    A Powerful Tool in Urban Infrastructure ConstructionIn the construction of roads, bridges, sidewalks, and other infrastructure, there is often a need to cut concrete pavements, drainage channels, or p...
    Analysis of Application Scenarios for Concrete Blades for Circular Saw
    Nov 11-2025
    Mastering Tile Cutting and Polishing with the Angle Grinder
    The angle grinder is one of the most versatile hand tools for stone and tile work. With the right blade or pad it can cut, grind, shape and polish — tasks that sometimes require larger, stationary eq...
    Mastering Tile Cutting and Polishing with the Angle Grinder