CNC Machining Nickel
Material Description
Nickel is a metallic element with the chemical symbol Ni and atomic number 28. It is known for its remarkable technical properties, making it a versatile material in various industrial applications. Nickel boasts excellent corrosion resistance, making it highly desirable for use in environments where exposure to moisture, chemicals, and high temperatures is common. Its ability to form a protective oxide layer on the surface, known as passivation, further enhances its resistance to rust and corrosion. This property is particularly important in the production of stainless steel, where nickel is often alloyed with iron and chromium to create a durable and corrosion-resistant material.
Grades
Nickel 200 & 201
Finishing Options
Electroplating, Brushed Finish
| Density | Tensile Yield Strength (MPa) | Fatigue Strength (MPa) | Hardness (Brinell) | Thermal Conductivity (W/m-K) | Coeff. of Thermal Expansion (mm/mdeg) | Electrical Resistivity (micro Ohm-cm) |
|---|---|---|---|---|---|---|
| 8900 | 240-550 | 150-400 | 150 - 300 | ~91-90 | 13.3 | 6.9-7.6 |
Design Recommendation
When designing with nickel, it is essential to consider its unique characteristics and applications. Nickel offers exceptional corrosion resistance, making it an ideal choice for environments with high moisture or chemical exposure. Its lustrous appearance also makes it a popular choice for decorative elements. However, nickel can be prone to tarnishing, so a protective finish, such as nickel plating or a clear lacquer, is often recommended to maintain its aesthetic appeal. Additionally, nickel’s malleability and ductility allow for intricate and precise manufacturing processes, making it versatile for a wide range of designs, from industrial components to elegant jewelry. To ensure the best performance and longevity, carefully select the appropriate alloy and finish based on the specific requirements of your project.
Cost Saving Tip
Nickel alloys are known for their toughness and heat resistance, making tool wear a significant concern. To save costs, it’s vital to select cutting tools, preferably carbide or ceramic, specifically designed for nickel alloys. Optimizing cutting parameters, including cutting speed, feed rate, and depth of cut, for the specific alloy being machined is essential to extend tool life and reduce replacement costs. Consistent coolant flow is necessary to dissipate heat effectively and minimize tool wear. Proper coolant maintenance and chip evacuation systems are integral to cost-effective nickel alloy machining.
