The core characteristics of precision machining components are high precision, high reliability, diverse materials, and functional integration, making them widely used in high-end manufacturing.
High Precision and Tight Tolerances: The machining accuracy of precision machining components can reach the micrometer level (μm), with strict dimensional tolerance control, such as meeting ISO 2766-mK level standards. High surface finish effectively improves assembly accuracy and product stability. In aerospace, medical device, and other fields, parts must be 100% qualified, with machining accuracy reaching as low as 0.001 mm.
Diverse Materials and Strong Adaptability: Commonly used materials include stainless steel (such as SUS303), free-machining steel (such as 12L15), and copper alloys (such as H59 and C31000 leaded brass), with different materials meeting specific performance requirements. For example, C31000 brass has good machinability and cold workability, making it suitable for micrometer-level machining applications such as watches and instruments.
Highly Functional and Playing a Critical Role: Precision components often serve functions such as connection, signal transmission, elastic contact, support, fastening, and electromagnetic shielding in equipment, making them core components for the normal operation of instruments and equipment. For example, 3J40 shaft tip alloy is used in the shaft tips of precision instruments, possessing non-magnetic, wear-resistant, and vibration-resistant properties to ensure measurement accuracy.
Complex Machining Processes and High Degree of Automation: Advanced equipment such as precision automatic lathes and five-axis CNC machines are frequently used, supporting multiple processes such as external turning, spherical drilling, drilling, and tapping in a single setup, achieving fully automated production. One person can manage multiple machines. Strict control of cutting parameters, temperature, and vibration is required during machining to avoid thermal deformation and tool damage.
Prominent Customization and Non-Standardization: Most are non-standard parts produced according to drawings. There are no universally available products on the market. Collaborative design and mass production are required based on customer needs, serving specific industries or customers, such as multinational corporations like Timken (USA) and FOS (Spain).
