Precision machinery Tungsten Carbide mirror plane processing

1. Finished product can be Optical-grade mirror plane (RA<0.002) 2. Processing in High-speed doesn’t need to change tools
HIT Tungsten carbide mirror plane processing finished workpeice


HIT Tungsten carbide mirror plane processing surface quality

  

The Uniformed and smooth surface quality of work peice
 

Above two pictures shows that HIT tungsten carbide workpeice presents well surface quality and reach the optical-grade quality standard within one -time processing.



Highlights of HIT Ultrasonic Machining Module:
  • Finished product can be Optical-grade mirror plane (RA<0.002) 
  • Processing in High-speed doesn’t need to change tools
 

HIT Highlights and comparison
Method Normal CNC EDM HIT Ultrasonic +CNC
Procedure
Rough machining
Fine Machining
EDM first

And then surface finishing to remove hardening
The same as traditional CNC procedures
Polish According to the demand of surface roughness, using different types of sandpaper to polish .

At last, it requires diamond mold paste  to polish it again.
Reach Client’s Demand at first the first stage of machining

Surface Roughness(RA<0.002)
Difficulties
Material properties and the surface condition after machining are two essential  parts regarding success or not in polishing procedure. The excessive cutting force produced from traditional CNC method is prone to leave irremovable, deep scratch on the surface of tungsten carbide, thus, polishing work will be much more difficult in order to eliminate the trace.

Despite the positive results of rough machining, it still requires lots of  different polishing procedure to achieve the quality demand. The whole process consumes numerous money and time. 
 
Ultrasonic high frequency vibration is advantageous in brittle materials machining.
In addition to Efficiency improvement, it is helpful in enhancing surface quality.

The tools with dense and subtle vibration exerts lighter cutting force to surface, leaving shallower scratches compared to only CNC machining. The more shallower the trace is, the more uniform the machined surface presents. So that it is not necessary to polish after rough machining, and we can greatly reduce the time and costs by omitting the surplus polishing procedures.
 

 

Most of manufacturers use traditional machining or electrical discharge machining to process tungsten carbide. In the final stage, it often requires polishing procedure to fulfill quality demands.  
 
The current polishing method is mainly traditional mechanical polishing, with cutters, rollers, and sand paper to remove raised part. The more precise the quality we required, the more time and cost we need to burden. So far, many manufacturers have still taken both reducing manual polishing process and gaining the same quality surface standard into consideration.
 
This case is about mirror processing of tungsten steel. Assisted with Ultrasonic high-frequency and vibration, the finished artifacts can skip the polishing process and reach the quality standard to mirror level (RA <0.002).
 
Combined the situation of tungsten carbide extremely tough properties and current manual polishing process, the mechanics' polishing skills, machined surface, and materials condition occupies a great part of success.
 
When it comes to extreme properties materials, traditional CNC machining method is often fail to control its cutting force. And tungsten carbide is the exactly famous case in industries. The improper cutting force crashed to tungsten carbide tough texture,  causing tragic scratches left on the machined surface. Even if we take polishing process for several times, we cannot completely root out the trace. The situation will become more difficult if there are specific  demands in quality, it often consumes numerous time and money in basic equipment requirements.