CNC Machining PTFE

Flourish Legend is a plastic machining company specializing in the research, production, sales, and service of PTFE CNC plastic pipes, rods, sheets, films, and non-standard components. Our main products include:





Pipe Series: PTFE polytetrafluoroethylene pipes, FEP pipes, PFA pipes, PVDF pipes.



Heat Shrinkable Tubing Series: PTFE milling heat shrinkable tubing, FEP heat shrinkable tubing, PFA heat shrinkable tubing, PVDF heat shrinkable tubing.



Plate, Rod, And Film Series: PTFE sheets, rods, and films, FEP sheets, rods, and films, PFA sheets, rods, and films, PVDF sheets, rods, and films.



Insulation Material Series: Silicone, PE, PVC, UPE, and more.



Special Products: Imported PFA connectors, spiral pipes, spring pipes, spiral-cut pipes, welding rods, tees, straight connectors, gaskets, adapters, taper bars, expansion pipes, sealing pipes, braided pipes, corrugated pipes, and more.



We also offer customized CNC machining production of various specifications according to customer requirements. Feel free to contact us for inquiries and consultations.



Basic Knowledge of CNC Machining of PTFE

Polytetrafluoroethylene (PTFE) resin, commonly known as the ""Plastic King,"" is widely used in various industries due to its unique properties. It possesses high-temperature resistance, non-oxidizing and non-dissolving characteristics, exceptional chemical stability, and excellent dielectric properties, making it an indispensable material in industries primarily focused on chemistry and mechanics. PTFE resin is typically in the form of powder or dispersion, with a high molecular weight (8.88×106 to 3.17×107) and high crystallinity (92% to 98%). It has a melting point of 327°C and contains strong F-C bonds in its molecular structure.

 

Items	Features	Descriptions
Properties	Chemical Resistance	It is inert to most commonly used chemicals, except for reactions with molten sodium metal, fluorine, strong fluorinating agents, and sodium hydroxide above 300°C.
	Heat Resistance	It does not undergo thermal aging below 260°C.
	Electrical Properties	It has excellent electrical insulation properties, high arc resistance, a volume resistivity greater than 1×1016Ω·m, and is not affected by temperature variations.
	Lubricity	It has a low friction coefficient within a wide temperature range.
	Radiation Resistance	It retains 50% of its original tensile strength even at maximum irradiation doses in a vacuum.
	Low Permeability	It exhibits low permeability to most gases and liquids, except for fluorocarbon compounds with similar compositions.
	Weather Resistance	It is unaffected by climatic conditions and can withstand exposure for over 10 years.
	Non-Flammability	It has an oxygen index exceeding 90.
	Non-Adhesive	Virtually all adhesive substances do not stick to their surface.
	High And Low-Temperature Resistance	It can be used within a temperature range of -250°C to 250°C. Due to its exceptional properties, PTFE is often referred to as the "Plastic King" and finds widespread applications in defense, aerospace, petrochemical, electronics, mechanical, and various other industries.
Characteristics	Low Cutting Forces, Poor Thermal Conductivity, And Heat Resistance	During CNC machining of PTFE material, the cutting forces are approximately six to seven times smaller than those for metals. However, due to its low thermal conductivity and lower heat resistance compared to metals, the cutting speed needs to be reduced to prevent plastic softening and tool sticking.
	Non-Uniform Structure And Strength	Plastics consist of multiple components and their molecular structures exhibit various patterns, resulting in non-uniformity that hampers machining. Therefore, sharper and more wear-resistant cutting edges are required for cutting tools.
	C. Severe Tool Wear And Susceptibility To Brittle Cracking	PTFE materials often contain various fillers and additives, such as glass fibers, which make them challenging to machine. Tools wear quickly, and after tool blunting, cracking, and edge chipping can occur under high extrusion forces.
	High Thermal Expansion Coefficient	The thermal expansion coefficient of plastics is three to four times higher than that of metals, affecting dimensional stability and posing challenges in cutting operations.
	Difficulty In Chip Formation	During turning and drilling operations, the chips formed from PTFE tend to be stringy, clinging to the tool and getting compressed together, which adversely affects the machining quality.

 

Custom PTFE CNC Machining Parts

PTFE material has high temperature resistance, no oxidation, no dissolution, particularly good chemical stability and excellent dielectric properties, and is widely used in the following industries:



Chemical Industry

Medical Device Industry

Automobile Manufacturing Industry

Textile Industry



Advantages of CNC Machining PTFE Materials

Wear Resistance

Wear Resistance: PTFE materials exhibit excellent wear resistance, capable of withstanding high friction and high-speed conditions. This enables parts and components manufactured through CNC machining of PTFE materials to maintain stable performance and prolong their lifespan.



High Precision Machining

High Precision Machining: CNC (Computer Numerical Control) machining is a precise computer-controlled machining method that achieves high precision processing. CNC machining of PTFE materials allows for precise control of dimensions, shapes, and surface quality, ensuring accuracy and consistency of the parts.



Machining of Complex Shapes

Machining of Complex Shapes: CNC machining offers excellent flexibility and programmability, making it capable of processing complex-shaped parts and components. PTFE materials have good plasticity, allowing for CNC machining to meet various intricate processing requirements, including internal and external profiles, holes, and grooves.



High Temperature Resistance

High Temperature Resistance: PTFE materials possess exceptional high temperature resistance, maintaining stability in high-temperature environments. Parts and components manufactured through CNC machining of PTFE materials can withstand high-temperature applications, such as in high-temperature chemical reactors and engine components.



If you want to know more about TEFLON CNC machining and TEFLON milling, please visit our website.