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Precision stamping die common ways of three kinds of polishing

by:Fortuna     2021-02-03
Precision stamping dies for the purpose of polishing basically has two, one is to increase precision mould brightness, and beautiful. The second is to make the mould is easy to release. In polishing in general to use thick oil stone for coarse machining of mould cavity surface grinding, polishing to machining cutter knife, and then use the thin oil stone grinding to crude oil stone to trace, and then use fine sandpaper to fine abrasive polished surface is rubbed again, and then use polishing paste or paste on the final fine polishing the mold cavity surface with grinding, finally reaching bright like result of mirror. 1, mechanical polishing, mechanical polishing precision stamping die is removed by polishing by cutting, surface plastic deformation after the convex part of the smooth surface polishing method, commonly used article oil stone, wool wheel, abrasive paper, etc. , with manual operation is given priority to, special components such as surface of solid of revolution, can use tools such as turntable, high surface quality can be used over lapping method. Super throw is to use special abrasive lapping, in containing abrasive and polishing liquid, press on the processed workpiece surface, high-speed rotary motion. Using this technique can achieve Ra0. 008 microns of surface roughness, is among the highest in all kinds of polishing method. Optical lens mold often use this method. 2, electrolytic polishing precision stamping die electrolytic polishing, namely tiny bulge by selectively dissolved material surface, the surface is smooth. Compared with the chemical polishing, can eliminate the influence of the cathode reaction, the effect is better. Electrochemical polishing process is divided into two steps: ( 1) Macro leveling lysate to spread in the electrolyte, rough surface geometry, Ra> 1μm。 ( 2) Anode polarization light level off, the surface brightness, Ra< 1μm。 3, ultrasonic polishing precision stamping die artifacts in the abrasive suspension and put in ultrasonic field, rely on the ultrasonic oscillation effect, make the abrasive surface grinding and polishing. Ultrasonic machining of macro force is small, can not cause deformation of workpiece, but tooling production and installation more difficult. Ultrasonic machining can be combined with chemical or electrochemical method. On the basis of corrosion, electrolytic solution, and then applying ultrasonic vibration mixing solution, make the surface lysate from, near the surface of the uniform corrosion or electrolyte; The ultrasonic cavitation in liquid can also inhibit the corrosion process, favors the normal lighting. Precision stamping die development cycle fast, hand sample mould about 12 days, 20 days or so to complete the first formal production mould directly, quickly response to the high precision requirements in the early period of the shrapnel terminal samples requirements. Precision contact: I wish you all a happy New Year and all the best, if you want to learn more dynamic, can scan the qr code, pay attention to the public. , is committed to precision stamping processing factory of the world's most professional electronic components
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