Precision 6061-T6 Multi-Step Rotary Positioning Flange Cover Plate for Medical Imaging Equipment

We manufactured a precision 6061-T6 multi-step rotary positioning flange cover plate for a medical imaging equipment application. This component serves as a precision rotary interface within the imaging system — requiring accurate multi-step end-face parallelism and coaxiality, precise angular alignment of annular locating slots and indexing notches, clean finishing of complex contoured clearance features, and controlled threaded hole depth accuracy for fastener assembly. 6061-T6 Aluminum was selected for its excellent machinability and dimensional stability. We applied single-setup turn-mill machining to complete all stepped end-faces and critical features in one clamping — eliminating re-fixturing errors and maintaining parallelism and coaxiality. The annular slot and notch features were machined with precision indexing, referencing a common datum. Complex contoured clearance features were finished using specialized corner tools and optimized toolpath strategies to achieve clean internal corners. Threaded holes were machined with controlled depth cycles and verified with depth gauges. The cover plate was then bead-blasted and matte silver anodized for a uniform, corrosion-resistant finish meeting medical device aesthetic standards.

Project Overview

Key Technical Highlights

• Single-Setup Turn-Mill for Multi-Step Precision: All stepped end-faces and critical features completed in one clamping on a turn-mill center — eliminating re-fixturing errors that compromise parallelism and coaxiality. Staged roughing and finishing passes with intermediate stabilization prevent stress-induced distortion.
• Annular Slot and Notch Angular Control: Precision indexing with controlled C-axis positioning achieves the required angular accuracy for locating slots and indexing notches — essential for proper rotary alignment in the medical imaging assembly.
• Complex Contour Corner Clean-Out: Specialized tooling and optimized toolpath strategies achieve clean internal corners on clearance and contour features — eliminating material buildup and stress risers.
• Thread Depth Accuracy: Controlled tapping cycles with depth verification ensure threaded holes meet specified depth requirements for reliable fastener assembly.

Quality Verification

CMM inspection verified multi-step parallelism (≤0.01mm), coaxiality (≤0.015mm), and dimensional accuracy (±0.015mm). Angular measurements confirmed slot and notch positioning (≤0.02°). Thread depth verified with gauging. Surface finish inspected at Ra≤1.6μm. Anodized coating inspected for uniformity and color consistency per medical equipment standards.

Industry Applications

Ideal for medical imaging equipment positioning flanges, precision rotary interfaces, diagnostic system components, and high-tolerance structural adapters.

Why Partner With Us?

• Proven expertise in single-setup turn-mill machining for multi-step precision components
• Precision indexing capability for angular feature accuracy
• In-house bead-blasting and anodizing for uniform medical-grade finishes
• 12+ years of precision manufacturing experience across medical equipment sectors