Our PTFE CNC Machining Services
TENGHUI assists worldwide industries in versatile PTFE CNC machining services. We have more than 12 years of continuous experience in machining procedures. Thus, you can trust the production of variable products without worrying about reliability and quality. Ultimate finish and accuracy in PTFE CNC machining are also ensured to satisfy our customers around the globe.
What is PTFE? – PTFE Plastic Overview
PTFE or Polytetrafluoroethylene is considered the highest quality synthetic fluoropolymer. It’s the commonest plastic used in manufacturing different industrial and domestic products. Also, the versatility of this material makes it the best choice for global industries. This versatility comes from its hydrophobic nature.
Additionally, high resistance to temperature in PTFE is a plus point in treating this plastic under high temperatures. Thus, molding it into different shapes isn’t a problem for the workers. A long list of applications is also associated with PTFE plastic. Therefore, CAM and CAD software in CNC machining bring different products in no time.
Mechanical Properties of PTFE
| Yield Strength | Tensile Strength | Elongation | Hardness | Impact Strength | Fracture Toughness | Young’s Modulus |
|---|---|---|---|---|---|---|
| 2.86 – 3.15 | 5-Mar | 200 – 400 | 5.9 – 6.5 | 7.14 – 8.09 | 1.2 – 1.64 | 0.058 – 0.0801 |
Advantages of Teflon CNC Machined Parts
The moldable nature of Teflon or PTFE makes it easy for workers to manufacture custom parts. This material is available with a low coefficient of friction. Thus, you can use it for making sliding components, including bearings and seals. Besides, it is highly resistant to chemicals. Increased chemical resistance makes it a perfect choice for products in the food industry.
Other than this, heat resistance in PTFE helps it to be used under 500 degrees centigrade without getting melted. That is why CNC machining of Teflon has become common in heavy industries. Some common advantages of using Teflon CNC machined parts include the following:
- High electrical insulation
- Available with non-stick properties
- Yields exact products
- Easy to process into different shapes
- Highly efficient
- Close tolerances
- Low-cost manufacturing
PTFE Parts Applications
More than 50% of the total PTFE in the world is integrated with different industrial applications. Ranging from non-stick coatings to electric wires, every product contains Teflon as the primary material. Some common applications of PTFE parts are:
- Valves
- Fittings
- Bearings
- Bushings
- Manifolds
- Insulators
- Gears
- O-rings
CNC Machining PTFE – Teflon Part Design Tips
Essential tips for Teflon part design include:
- Use different types of sharp cutting tools
- Try to adjust medium-to-low tolerance
- Decide a perfect deburring strategy in advance
- Use liberal quantities of water-soluble coolant
- Combine all sharp tools with water-soluble coolants to yield the best results
- Take all precautions before injecting Teflon into CNC machining
- Don’t leave undesirable marks on the final product
- Check the finishing of finalized product in the last step
