Bulk Polycrystalline Diamond End Mills CBN PCD Diamond Turning Inserts For Aluminium Alloy Brass

• Premium R1.5 PCD Turning Inserts, CNC Lathe Diamond Cutting‑Tool, Wear‑Resistant Machining Insert for Aluminum, Brass, Ceramic, Stone

  The Application-Focused Format

  R1.5 PCD End Mill — Designed for Strength, Precision, and Longevity

  A 1.5 mm corner radius on a PCD-tipped end mill serves two critical functions: it reinforces the cutting edge at its weakest point, and it generates a controlled fillet at the shoulder—eliminating sharp internal stress risers and the need for manual deburring.

  Specifications at a Glance

  Specification	Detail
  Cutting edge material	Polycrystalline diamond, vacuum brazed
  Tool body	Solid carbide shank, dynamically balanced
  Corner radius	R1.5 mm
  Flute configurations	2-flute and 4-flute options available
  Surface treatment	None required—diamond is the wear surface
  Coolant compatibility	Dry, MQL, or flood coolant all work

  The Engineering Behind the Radius

  Why add a radius to a cutting tool? Because sharp 90-degree corners are stress concentration points. Under cutting forces, that sharp corner is the first to chip or fracture. Once the corner fails, the entire edge follows. The R1.5 radius distributes these forces across a curved profile, significantly improving impact resistance and abrasive wear tolerance—all while maintaining the ability to produce a square shoulder.

  What this means for production: flat floors, clean vertical walls, and a 1.5 mm fillet that extends tool life while improving part strength.

  Primary Workpiece Materials

  Material Type	Specific Workpieces
  Aluminum	6061 billet, 7075 structural, A356 castings, ADC12 die-cast
  Copper alloys	Brass fittings, bronze bushings, copper electrodes
  Engineering plastics	PEEK components, POM gears, nylon structural parts
  Composites	CFRP panels, GFRP laminates, carbon-reinforced parts
  Graphite	EDM electrodes, mold cavity roughing

  Production Applications

  Application Area	Performance Benefit
  Mold plate pocket finishing	Radius protects corner during intermittent cuts
  Aerospace bracket shoulder milling	Fillet meets print specifications directly
  Drone component slotting	Radius minimizes edge chipping on fiber breakout
  Large-hole helical boring	Diameter consistency maintained across full depth
  Graphite electrode profiling	Radius prevents brittle corner fracture

  Performance Metrics

  Metric	Carbide Baseline	R1.5 PCD
  Corner edge life	Hours	Days to weeks in aluminum
  Surface finish stability	Degrades with wear	Consistent across tool life
  Tool changes per shift	Multiple interventions	One setup, full shift duration

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Bulk Polycrystalline Diamond End Mills CBN PCD Diamond Turning Inserts For Aluminium Alloy Brass Images