Nylon 6 offers:

• Lower density
• Better toughness
• Better surface appearance
• Lower processing temperature

Nylon 6/6 offers:

• Higher temperature resistance
• Higher strength
• Higher stiffness
• Lower moisture absorption
• Better abrasion resistance

Nylon (PA) is a high-performance thermoplastic known for its high strength, ability to maintain mechanical properties at elevated temperatures, and chemical resistance. It is also lightweight, weighing 1/7th as much as bronze, making it an excellent replacement for metal in various applications.

Typical applications of nylon include gears, industrial bearings, nozzles, sheaves, and wear pads. It is often used in place of metal due to its lightweight properties.

Nylon is a thermoplastic, which means it melts when heated, unlike thermosets that remain set once formed. Nylon offers ease of machining and tight tolerances due to its inherent strength, toughness, and dimensional stability. However, it requires careful handling to prevent deformation and the use of non-aromatic, air-based coolants to achieve optimal surface finishes and close tolerances.

Annealing nylon helps to increase its ductility and reduce hardness, making it easier to machine. This process reduces the likelihood of surface cracks and internal stresses in the material.

Tungsten Carbide Alloy Tooling is recommended for machining nylon. It is also important to keep the part very cool, support it well, and use non-aromatic, air-based coolants.

To prevent contamination, AIP Precision Machining designs, heat-treats, and machines only plastics, with any sub-manufactured metalwork processed outside their facility. This approach ensures the highest level of sanitation and reduces the risk of metallic cross-contamination.

PA66, also known as Nylon, is a synthetic polymer widely used in various industries due to its excellent mechanical properties. It is a high-strength, rigid, and tough thermoplastic with good chemical resistance and the ability to withstand high temperatures. Nylon is used in automotive, aerospace, and electronics industries, among others.

• PA6: Better impact resistance and solubility resistance, but absorbs more water, leading to brittleness in warm and dry environments.
• PA66: Higher temperature resistance, strength, stiffness, lower moisture absorption, and better abrasion resistance.

The recommended tooling for machining PA66 or Nylon should be made of high-speed steel or carbide with a sharp cutting edge. The tool angles should be between 10 and 15 degrees.

• Cutting Speeds: 200 to 300 feet per minute.
• Feed Rates: 0.002 to 0.008 inches per tooth.
• Depth of Cut: 0.020 to 0.050 inches.

The fixturing methods should provide maximum support and stability. Recommended methods include clamping and vacuum chucking.

Coolant should be constantly flowed to reduce heat generated during machining. The coolant should be water-soluble and compatible with the material.

• High strength: Can withstand heavy loads and stresses effectively.
• Chemical resistance: Resistant to various chemicals, including oils, fuels, and solvents.
• Heat resistance: Maintains mechanical properties even at high temperatures.
• Easy machinability: Can be easily machined using standard equipment.

• Automotive: Gears, bearings, fuel tanks.
• Aerospace: Engine components, landing gear, electrical connectors.
• Electronics: Cable ties, connectors, switches.
• Industrial: Rollers, gears, bearings for heavy-duty machinery.
• Consumer Goods: Kitchen utensils, sporting equipment, toys.

An experienced machining provider ensures the highest quality plastic parts by selecting the right tooling, cutting parameters, and fixturing methods. This results in successful machining processes and high-quality final products.