Turned parts are mechanical parts formed by rotating a workpiece on a lathe, encompassing internal and external cylindrical surfaces, conical surfaces, threads, and other rotating surfaces. CNC turning utilizes computer-controlled technology, automatically executing cutting operations based on a CAD model. Machining accuracy typically reaches IT11-IT7 (some can reach IT6), with surface roughness Ra controlled between 12.5-0.8μm. Precision CNC turned parts require rigorous quality control and testing to ensure performance under extreme conditions.
Common materials include aluminum (EN AW-6061), steel (C45), stainless steel (1.4301), copper (E-Cu57), titanium (grades 2 and 5), and polymers (PEEK). Surface treatments include spraying, polishing, pearlescent finishing, and heat treatment. These parts are widely used in aerospace, medical devices, energy, and automation control fields. Medical device implants and key components of energy equipment are typical application scenarios. Hard turning technology effectively maintains the thermal stability of the parts.