Laser welded diamond blades offer superior segment retention at high RPM. Understand the manufacturing process, safety certifications, and best practices for bridge saw and masonry saw applications on granite and concrete.
The Laser Welding Process
Laser welding creates a high-strength fusion bond between the diamond-impregnated segment and the steel blade core. Unlike traditional brazing or sintering methods, laser welding produces a narrow heat-affected zone, preserving the metallurgical properties of both the segment and the core. This results in exceptional resistance to segment loss even at peripheral speeds exceeding 80 m/s.
Safety Standards and Certifications
Professional-grade laser welded blades should comply with EN 13236 and OSHA requirements for diamond tools. Look for blades marked with maximum RPM ratings, arbor size compatibility, and wet/dry use designation. Reputable manufacturers provide test data showing segment retention force under simulated failure conditions.
Performance on Hard Materials
Laser welded blades maintain consistent cutting speed and straightness throughout their service life. The laser weld tolerates the thermal cycling and mechanical shock encountered in intermittent cutting of reinforced concrete, cured granite, and engineered stone. Segment geometry (turbo, segmented, or continuous rim) should be selected based on material hardness and desired edge quality.
Operational Guidelines
- Never exceed the blade maximum RPM marked on the core
- Use blade guards and flange collars sized for the blade diameter
- Ensure adequate water flow for wet cutting to prevent overheating
- Inspect weld seams visually before each use for cracks or discoloration
Proper blade selection combined with correct machine setup delivers both safety and productivity in demanding stone cutting environments.
Related Protec Tools products: Laser welded diamond blade, Sintered diamond blade, Diamond core drill bit, Diamond grinding wheel
