Magnetic polisher and plane polisher: Gemini of precision manufacturing

In the field of precision manufacturing, surface treatment process directly affects the performance and quality of products. As precision tools of modern industry, magnetic polishers and plane polishers play a key role in high-end fields such as aeroengine blades, medical devices, and optical lenses. These two technologies are like Gemini constellations, complementing each other in the field of metal processing.

1. Differentiation of technical principles

Magnetic polishers use controllable magnetic fields to drive abrasive media to form flexible "magnetic brushes" and achieve three-dimensional Polishing through magnetohydrodynamic effects. Its polishing medium is composed of a mixed fluid of magnetic abrasive particles and liquid carriers, which forms a dynamic grinding layer under the action of an electromagnetic field, and can accurately control the polishing pressure and motion trajectory. The plane polisher adopts a mechanical grinding method in which a rigid grinding disc contacts the plane of the workpiece, and realizes nano-level plane processing by precisely controlling the speed, pressure, and grinding fluid ratio.

In the field of medical devices, magnetic polishers can perform dead-angle polishing on complex curved surfaces such as artificial joints, and the surface roughness can reach Ra0.02μm. In semiconductor wafer processing, the flat polishing machine can control the flatness of 300mm silicon wafers within 0.3μm, meeting the manufacturing requirements of 7nm process chips.

2. Complementary layout of Application scenarios

In the field of automobile manufacturing, magnetic polishing machines are used for gear tooth surface finishing of gearbox gears to eliminate microscopic burrs and improve transmission efficiency. Flat polishing machines focus on engine cylinder surface processing to ensure the flatness of cylinder sealing surfaces. In the field of aerospace, magnetic polishing technology can precisely process complex air film holes of turbine blades, and flat polishing machines are responsible for ultra-precision processing of the inner wall of the engine combustion chamber.

A typical case in the 3C electronics industry shows that a mobile phone manufacturer uses magnetic polishing to process stainless steel middle frames, which increases polishing efficiency by 40%. At the same time, the flat polishing machine reduces the surface waviness of the glass cover to below 0.5μm, significantly improving touch sensitivity.

3. Fusion trend of technological evolution

The development of intelligent control systems promotes the integration of the two technologies. The latest developed composite polishing equipment integrates a magnetic generating device and a flat grinding platform to achieve adaptive processing of complex curved surfaces through multi-axis linkage. The HybridPolisher system launched by a German equipment manufacturer uses AI visual inspection to adjust process parameters in real time, improving processing accuracy by 30%.

A breakthrough has been made in the research and development of environmentally friendly polishing media. The combination of biodegradable abrasives and magnetorheological fluids has reduced the cost of polishing waste liquid treatment by 60%. In the field of aerospace, this green process has been successfully applied to the processing of titanium alloy parts to achieve clean production.

With the in-depth promotion of intelligent manufacturing and green manufacturing, magnetic polishing and plane polishing technologies are developing in a coordinated manner towards intelligence, compounding and environmental protection. These two technologies will continue to innovate in the field of precision manufacturing, provide more precise and environmentally friendly surface treatment solutions for high-end equipment manufacturing, and promote China's manufacturing to climb to the high end of the value chain.