Precision machinery Tungsten Carbide Mirror Polishing

🕜 Efficiency remained consistent | 📈 Quality - surface quality reached above optical mirror level, Ra < 0.002μm | ⚙️ Tool Life - completing the entire process with only one tool

 

What makes Tungsten Carbide difficult to machine?


Tungsten Carbide, also known as Cemented Carbide, is an alloy of tungsten and carbon.  It is approximately 2-3 times as rigid and dense as steel, and it is highly resistant to deformation at both extreme low and high temperatures.

This material is incredibly hard and difficult to machine, since most of the machine bits and tools are made of Tungsten Carbide themselves.  Generally, it is impossible to be machined by traditional machining process.  Though it can be machined by special tools, such as PCD, CNB, and ceramic tools, these cutting tools lose their sharpness easily due to the extreme hardness of Tungsten Carbide.


☑️ Tungsten Carbide Machining Information
 
  Tungsten Carbide Machining Information
  Material   Tungsten Carbide
  Dimensions   W20 x L20 mm
  [Procedure]
1.Grinding (roughing) : Ae 0.05mm  ;  Ap 2.4mm
2.Grinding : Ae 0.05mm  ;  Ap 0.05mm
3.Mirror polishing : Ae 0.07mm  ;  Ap 0.005mm
  Methods   Grinding; mirror polishing
  Machine Tool   YCM NFP-55LX
  Max. Spindle Speed   30,000 rpm
  Tool Rotating Speed
1.Grinding (roughing) : 20,000 rpm
2.Grinding : 20,000 rpm
3.Mirror polishing : 10,600 rpm
  Spindle Taper   HSKE40
  Tool Holder   HSKE40
  Integrated System   CTS; ATC; CNC Automation



 

 

(Figure 1. ultrasonic-assisted mirror polishing on Tungsten Carbide workpiece)


(Figure 2. ultrasonic-assisted mirror polishing on Tungsten Carbide workpiece under measuring equipment)

 

HIT's Goal in Machining Tungsten Carbide


To see the ultrasonic effects on mirror polishing Tungsten Carbide.
 


Ultrasonic-Assisted Machining Tungsten Carbide Results


With HIT's Machining Technology, the surface quality of the Tungsten Carbide workpiece reached above optical mirror level, with the Ra < 0.002μm.

HIT managed to finish the entire machining process with only one tool (from roughing to mirror polishing).

 


HIT Ultrasonic Machining Technology Achievements


🕜 Efficiency remained consistent
📈 Quality - surface quality reached above optical mirror level, Ra < 0.002μm
⚙️ Tool Life - completing the entire process with only one tool



 


Mirror polishing Tungsten Carbide is often applied in the Precision Machining industry and Automotive industry, especially for metal machining, high pressure oil and gas slab gate valves, etc.


Due to its material properties of high hardness and rigidity, it is invaluable in making hardmetal, as well as making mill products, high-speed tools, military weapons, and other rugged applications.

The hardness and rigidity make it difficult to process mirror polishing on this material.  Clients usually had a hard time maintain the surface quality, and the tool life was awfully hard to control.  Scratches on the surface were often the results of poor quality and unstable tool life.

That was when they came to HIT's Ultrasonic Machining Module!  We offer a comprehensive solution in machining these difficult-to-cut materials.  With the assistance of our Ultrasonic Machining Technology, our clients stopped worrying about spending excessive amount of money on the tools due to unstable tool life.  The processing time can also be effectively reduced, resulting in a huge reduction in the production costs.  We can assure our clients of matching up with their requirements or even achieving  better outcome!