Grinding
Grinding is a surface finishing that grinds the surface of parts mechanically by automated equipment such as a grinder to remove material, improve surface roughness, flatness and dimensional accuracy. The purpose is to improve the finish and smoothness of the parts surface, precisely control the size and shape of the parts and remove burrs, oxide layers, rust and other defects on the surface.
Materials for Grinding
High machinability and ductility, good strength-to-weight ratio. Aluminum alloys have good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance.
Stainless steel alloys have high strength, ductility, wear and corrosion resistance. They can be easily welded, machined and polished. The hardness and the cost of stainless steel is higher than that of aluminum alloy.
Steel is a strong, versatile, and durable alloy of iron and carbon. Its applications range from construction materials and structural components to automotive and aerospace components.
Steel is strong and durable High tensile strength Corrosion resistance Heat and fire resistance Easily molded and formed.
Highly resistant to seawater corrosion. The material’s mechanical properties are inferior to many other machinable metals, making it best for low-stress components produced by CNC machining.
Brass is mechanically stronger and lower-friction metal properties make CNC machining brass ideal for mechanical applications that also require corrosion resistance such as those encountered in the marine industry.
Few metals have the electric conductivity that copper has when it comes to CNC milling materials. The material’s high corrosion resistance aids in preventing rust, and its thermal conductivity features facilitate CNC machining shaping.
Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed.
Titanium is an advanced material with excellent corrosion resistance, biocompatibility, and strength-to-weight characteristics. This unique range of properties makes it an ideal choice for many of the engineering challenges faced by the medical, energy, chemical processing, and aerospace industries.
Iron is an indispensable metal in the industrial sector. Iron is alloyed with a small amount of carbon – steel, which is not easily demagnetized after magnetization and is an excellent hard magnetic material, as well as an important industrial material, and is also used as the main raw material for artificial magnetism.
Design Considerations
- Consider the material’s hardness, wear resistance, contamination level, and composition, which will affect the grinding process and the color and material of the final product.
- The choice of grinding fluid is crucial to lower the temperature in the grinding area, reduce wear and improve surface quality.
- Avoid defects that may occur during grinding, such as chatter marks, spiral scratches, surface cracks, etc.
- Consider post-processing steps after grinding, such as polishing, superfinishing, grinding or deburring to further improve surface quality.
- Process gradually, in layers or multiple light grindings, to avoid removing too much material at once.
Materials for
Grinding Service
