CNCmilled

CNCmilled refers to parts or surfaces produced using computer numerical control (CNC) milling, a subtractive manufacturing process in which rotating cutting tools remove material from a workpiece according to programmed toolpaths. The process begins with a digital model created in CAD software, which is translated into machine instructions via CAM software. CNC milling machines range from simple 3-axis mills to multi-axis systems that allow complex geometries and undercuts.

Common materials machined with CNC milling include aluminum, steel, stainless steel, brass, plastics, and some composite materials. Key process variables include spindle speed, feed rate, depth of cut, tool geometry, coolant use, and workholding methods; these factors determine surface finish, dimensional accuracy, and tool life. Typical tolerances achievable with CNC milling are in the hundredths to thousandths of an inch or sub-millimeter range, depending on machine capability and setup.

Applications span aerospace, automotive, medical devices, electronics enclosures, prototypes, jigs and fixtures, and tooling. Advantages of CNCmilled components include reproducibility, precision, and flexibility for low- to medium-volume production and one-off prototypes. Limitations include material waste inherent to subtractive processes, higher per-part cost for large-volume production compared with molding, and the need for skilled programming and setup.

Post-processing such as deburring, heat treatment, anodizing, or plating is often applied to meet functional or aesthetic requirements. Safety practices and waste management are important considerations in CNC milling operations.