integrated large-diameter annular flange

This integrated large-diameter annular flange is a core load-bearing and positioning component customized for industrial rotating equipment, large machine tool turntables and optical inspection equipment annular mounting units. With a full-circle symmetrical multi-mounting hole design, it serves as the mounting reference for the equipment rotating unit, undertaking the functions of precise positioning, uniform stress distribution and sealing connection for large annular components. It perfectly adapts to industrial automation working conditions with high coaxiality and high flatness requirements, and is widely used in scenarios such as large rotating worktables, optical annular inspection systems and industrial robot rotary units, providing stable and reliable rigid mounting reference for large annular equipment.

Core Material: 6061-T6 Aluminum Alloy (preferred material for large annular components, adapting to the high strength, lightweight and high geometric tolerance requirements of this part)

Key Performance:

• Tensile strength ≥310MPa, yield strength ≥276MPa, with excellent deformation resistance and fatigue resistance, can withstand full-circle uniform loads
• Density is only 2.7g/cm³, greatly reducing the inertial load of the rotating end of the equipment while ensuring structural rigidity, adapting to high-speed working conditions
• Natural corrosion resistance, can be used for a long time without additional coating in conventional industrial production environments, fully complying with RoHS and REACH environmental protection standards
• Extremely strong dimensional stability, no warpage or deformation during long-term use, ensuring the consistency of annular flatness and coaxiality

This part adopts 5-axis linkage CNC turn-mill composite machining process, integrally cutting and forming from a solid aluminum bar, completely avoiding geometric tolerance hidden dangers caused by welding/splicing.

• Core processes: outer circle/inner hole precision turning, full-circle symmetrical mounting hole/positioning hole drilling, annular contour milling, end face reference surface precision milling
• Auxiliary processes: high-gloss contour chamfering, deburring, surface polishing treatment, ensuring no sharp edges and stress concentration
• Full CNC programming, one-time clamping to complete full-circle processing, ensuring the consistency of annular coaxiality, flatness and geometric tolerances of each mounting hole

Machining Accuracy:

• Dimensional tolerance: ±0.015mm, strictly matching the assembly clearance of equipment annular components
• Geometric tolerance: annular flatness ≤0.02mm/Φ1000mm, mounting hole position tolerance ≤0.02mm
• Surface roughness: Ra≤1.6μm, smooth and burr-free end face reference surface, improving assembly fit and sealing

Usage Requirements:

• Adapt to a conventional industrial working environment of -20℃~85℃, can withstand uniform installation load ≥1000N and high-frequency vibration
• No deformation or loosening during long-term use, ensuring the coaxiality and operation stability of annular components
• Clean the end face reference surface before installation to avoid impurities affecting installation accuracy and sealing performance

With heat treatment, adopting solution treatment + artificial aging (T6 state) process.

• Core purpose: eliminate processing internal stress, improve material strength and dimensional stability, avoid warpage and deformation of the large-diameter annular flange after long-term use, and ensure the long-term consistency of flatness and coaxiality.

Natural color polishing treatment, retaining the original metallic texture of aluminum alloy.

• Process advantages: improve surface finish and wear resistance, optimize appearance texture, enhance the sealing performance of the end face reference surface, facilitate assembly positioning inside the equipment, fully meet environmental protection requirements, and can be used directly without additional coating.

Implement a full-process closed-loop quality control system, strictly complying with ISO9001 quality standards:

• Raw material incoming: spectral material inspection to ensure 6061-T6 alloy composition and mechanical performance meet standards
• Processing process: 100% geometric tolerance inspection, focusing on monitoring annular flatness, coaxiality and mounting hole accuracy
• Final product inspection: appearance defect inspection, full dimensional inspection, flatness/coaxiality test, traceable inspection report for each batch
• Pre-delivery: cleanliness inspection to ensure no iron chips and impurities on the end face and threaded holes, meeting precision assembly requirements