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CNC machining materials
CNC Machining in POM
Plastics are another common material used in CNC turning because they are available in many different options, are relatively inexpensive, and have faster machining times. Commonly used plastics include ABS, acrylic, polycarbonate and nylon.
POM (Polyoxymethylene) Description
POM, also known as acetal or Delrin, is a thermoplastic material with semi-crystalline properties. It is highly regarded for its exceptional strength, stiffness and low friction properties. POM is often used in applications requiring precision and low friction components.
Application
POM, also known as acetal or Delrin, is a versatile thermoplastic material used in a wide variety of applications. Its unique properties make it ideal for manufacturing gears and bearings in mechanical systems. Automotive components, such as fuel system components and interior trim, also benefit from POM's durability and resistance. In addition, POM's excellent electrical insulating properties make it suitable for use in electrical connectors. Finally, POM's strength and longevity make it the preferred choice for the production of consumer goods such as zippers, toys and kitchen utensils.
Strengths
The material has impressive strength and can withstand enormous mechanical forces. It provides smooth motion with minimal friction and is resistant to wear. It maintains its shape and dimensions in all conditions, ensuring stability. In addition, it is resistant to the effects of chemicals and can withstand exposure to various substances without degradation.
Weaknesses
The material has limited resistance to UV radiation and is therefore susceptible to damage during prolonged exposure to sunlight. Also, it is prone to stress cracks under certain conditions.
Price
$$$$$
Lead Time
< 2days
Wall Thickness
0.8 mm
Tolerances
±0.5% with a lower limit of ±0.5 mm (±0.020″)
Max part size
50 x 50 x 50 cm
Layer height
200 - 100 microns
Popular science information about POM
POM (Polyoxymethylene), also known as acetal, is a high-performance engineering plastic. It is a semi-crystalline thermoplastic that offers excellent mechanical strength, stiffness, and dimensional stability. POM is commonly used in precision parts, such as gears, bearings, and automotive components.
POM has a low coefficient of friction, which makes it suitable for applications that require low wear and friction. It has good resistance to chemicals, solvents, and fuels, making it suitable for applications in the automotive and chemical industries. POM also has good electrical insulation properties and can withstand high temperatures.
POM is available in two main types: homopolymer and copolymer. Homopolymer POM offers higher mechanical strength and stiffness, while copolymer POM offers better resistance to thermal degradation and chemical attack.
