Machining tungsten carbide

Property

Tungsten carbide is a high versatile material used for metal molds, cutting machines, etc. OGURA is providing various tools with wear and abrasion resistance by machining tungsten carbide to various kinds of shapes.

Especially, OGURA is good at machining smooth inner surface with good fluidity used as nozzles and dies. And we are able to polish up inner surface of holes with high precision diameter. What is more, we are also good at machining micro tip end just like push-up pins.

Examples of processed tungsten carbide

Chemical composition WC+Co
Structure Sintered compact
Mechanical property
※Value for reference
Tensile strength: 0.8 to 1.7GPa
Bending strength: 2.4 to 2.6GPa
Compressive strength: 6.1GPa
Young’s modulus: 620 to 640GPa
Hardness: HK 1,700
Feature Hard and excellent wear and abrasion resistance.
High versatile and ample of materials.
High flexibility of machining shapes.
Various connecting methods available like brazing.

Processing

Very low variance of measurement of R at every corner of four-sided hole

  • value R1=R0.3786
  • value R2=R0.3787

超硬合金

Make tip-end R with 25μm ± 2μm

  • Measure value of tip end: R=24.1μm
  • Circularity of tip end: 0.9μm
  • Polished to a beautiful cubic shape

 

Examples of uses