Official Release of Achievements

We take the lead in the industry by comprehensively applying five‑axis linkage ultra‑precision CNC grinding technology to the mass production of laparoscopic shaver blades. This technology enables sub‑micron‑level precision control over complex 3D spatial curved cutting edges, irregular chip‑removal grooves and micro‑tooth profiles. It ensures every finished blade features perfectly consistent and ultra‑sharp geometric characteristics, advancing the manufacturing precision and consistency standards of shaver blades from the "micron era" to the "sub‑micron era".

R&D Background and Key Pain Points

The core performance of a shaver blade lies in the micro‑geometry of its cutting edge. Conventional manufacturing mostly adopts step‑by‑step machining on multiple equipment (e.g., external cylindrical grinding first, then edge formation, followed by polishing), which leads to accumulated clamping errors, inter‑process damage, and heavy reliance on technicians' operational feel.This results in poor intra‑batch and inter‑batch consistency of blades: fluctuations occur in cutting‑edge sharpness, cutting‑line symmetry and chip‑groove surface smoothness. Such inconsistency directly translates into clinical variables: surgeons cannot obtain stable and predictable cutting feedback; some blades may dull prematurely, while others suffer abnormal wear or even edge chipping due to localized stress concentration. In precision surgery, this uncertainty itself poses risks. The market urgently demands a high‑precision manufacturing solution delivering consistency comparable to precision watch components.

Core Technological Innovations

Our core technology lies in building a fully closed‑loop five‑axis ultra‑precision grinding system featuring one‑time clamping and complete forming:

Five‑Axis Linkage Ultra‑Precision GrinderWe adopt high‑rigidity, high‑dynamic‑response five‑axis CNC grinders. Their rotary axes (B‑axis/C‑axis) are linked with linear axes (X/Y/Z‑axes), allowing superhard material (e.g., CBN) forming grinding wheels to move continuously along complex 3D paths. Precision grinding of blade outer contours, cutting windows, edge bevels and even chip‑removal grooves is completed in a single process, eliminating datum conversion errors from step‑by‑step machining.

In‑Process Measurement and CompensationDuring grinding, high‑precision contact or laser probes monitor critical dimensions in real time. The system compares measured data with theoretical models and automatically compensates errors caused by grinding wheel wear, thermal deformation and other factors, realizing active quality control during machining and ensuring long‑term dimensional precision within ±2 μm.

Micro‑Edge Forming and Burr ControlBy precisely controlling grinding wheel feed trajectories, rotational speeds and matching workpiece rotational speeds via software, we directly grind designed micro‑tooth profiles or specific edge angles onto cutting edges. More importantly, by optimizing grinding wheel retraction paths and adopting "spark‑out grinding", we remove edge burrs with ultra‑small feed rates in the final grinding stage, producing sharp cutting edges ready for use directly on‑machine and eliminating inconsistency from conventional manual honing.

Superhard Grinding Wheels and Intelligent DressingWe use diamond or CBN (cubic boron nitride) superhard grinding wheels. Their ultra‑fine abrasive grain size and ultra‑high binder strength lay the foundation for nanoscale surface smoothness. Combined with an in‑process wheel dressing system, the grinding wheel maintains sharp and accurate contours at all times.

Mechanisms of Action

The core mechanism of this process is deterministic manufacturing. Unlike the conventional trial‑and‑error mode relying on operator experience, five‑axis linkage ultra‑precision grinding converts all geometric features of blades - including every curve and curved surface in 3D space - into digitally‑controlled motion trajectories accurately executed by machine tools. Every position and velocity of the grinding wheel relative to the workpiece is controllable, measurable and repeatable. This means once optimal machining programs are finalized, identical products can theoretically be replicated infinitely.The in‑process measurement and compensation system acts like an autopilot, correcting minor trajectory deviations in real time during production to ensure long‑term machining consistency. Ultimately, the sharpness, uniformity and burr‑free nature of cutting edges stem not from post‑process manual polishing, but from precise formative machining from the start.

Efficacy Verification

Blades manufactured with this process exhibit edge radii (R‑values) stably controlled below 5 μm with extremely low dispersion within a single batch, as verified by 3D optical profilometry. Cutting‑force tests show their initial cutting force is approximately 30 % lower than that of conventionally manufactured blades, with a gentler attenuation curve indicating superior sharpness retention.In accelerated life tests with 100 000 continuous tissue‑simulating cutting cycles, the standard deviation of performance attenuation of our blades is far lower than that of control groups, proving outstanding batch consistency.Direct feedback from clients: surgeons report that our blades deliver sharpness from the first cut without running‑in, with consistent cutting feel for every replacement blade, greatly improving surgical rhythm and confidence.

R&D Strategy and Philosophy

We firmly believe: Ultimate performance comes from ultimate control over the manufacturing process.We regard converting blade geometry fully into digital machine instructions as the only way to eliminate human‑induced fluctuations and achieve absolute consistency. Our strategy involves heavy investment in cutting‑edge manufacturing equipment and process development, transforming artisans' experience and operational feel into replicable and optimizable data and algorithms.We strive to make every blade as if forged from the same matrix, providing surgeons with absolutely predictable performance through perfect geometric consistency.

Future Outlook

In the future, we will deepen development toward intelligent grinding and digital twins. We will integrate more in‑process sensors (e.g., acoustic emission, power monitoring) to perceive grinding conditions in real time, realizing adaptive optimization and predictive maintenance based on big machining data. Meanwhile, digital twin archives containing all machining parameters and inspection data will be established for each blade to enable full‑life‑cycle traceability and quality analysis.Our goal is to build an unmanned, intelligent precision manufacturing unit at dark‑factory level, pushing the