Teflon

Machining

Teflon

Teflon, technically known as Polytetrafluoroethylene (PTFE), is a synthetic fluorocarbon solid. Being completely extracted from carbon and fluorine, it possesses high molecular weight

London dispersion forces due to the high electronegativity of fluorine make it hydrophobic in nature.

Natural Color: White

Bounding box (in mm) | Rectangular (X/Y/Z) | Cylindrical (D/D/H)
25 x 25 x 10
40 x 40 x 25
60 x 80 x 50
100 x 100 x 100
150 x 150 x 100
250 x 250 x 200
400 x 400 x 300

Accuracy: less than 200 µm

Post-Processing options: Vibrator Polishing, Painting, Electroplating

ABS material properties - abs

Highlights

  • High machinabilit
  • Heat tolerance
  • Safe for food, drugs
  • Water resistance

Limitations

  • Low strength
  • Attacked by most solvents
  • Compresses easily
  • Becomes mildly toxic at high temperatures

Applications

  • Gaskets
  • Vessel linings
  • Pump interiors, washers
  • Wire and cable wrap
  • Piping, tubing and vessels

Material data

It is a widely used polymer and finds great applications in cookware, petrochemical industry, semiconductors and electrical components. Download the datasheet here.

TEFLON Design Guidelines for Machining

ABS material properties - wall thickness

Wall thickness

  • Minimum wall thickness should be 1.5mm anywhere.
  • For better results, it is recommended to maintain wall thickness above 2mm.
ABS material properties - minimum details size

Minimum detail size

  • Minimum diameter that can be processed is 1mm.
  • Metal inserts may be required for softer materials.

ABS material properties - support

Design consideration

  • Undercuts, T-slots, Dovetail slots are difficult to process.
ABS material properties - emboss

Text impressions

  • Engraving is easier than embossing.
  • Embossing requires more material removal.
  • There are thickness limitations associated with embossing.
ABS material properties - emboss

Corner Radius

  • Corner radius depend on the tool diameter
  • Too small diameters are hard to machine
  • Corner radii, if any, must be limited to 1mm diameter