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By Sunny Tang
There are many advantages for precision machining, the most obvious part is it can reach to high precision that the normal way can’t do. Precision also depends on precision processing equipment and accurate control system, and use the precision mask as an intermediary, to achieve small control for precision by removal or addition.so what specific characteristics for precision machining? Let engineer from Kanou Precision introduce the details now:
一，Precision parts cutting processing
There are mainly precision turning, mirror grinding and grinding. By using single crystal diamond turning tool with a fine grinding to do micro-turning, and the thickness can be around 0.01mm, It often is used to machine high precision and high polishing parts that is non-ferrous metal materials with Spherical surface, aspheric surface, surface.
二，Precision Parts Machining
When the precision machining use nm, even use 0.1nm as the target, The Cutting processing can’t meet the requirements, then we need use special machining method like Application of chemical, electrochemical, thermal or electrical energy, etc, to achieve the High Precision requirements. These processes include mechanochemical polishing, ion sputtering, and ion implantation, electron beam exposure, laser beam processing, metal evaporation, molecular beam epitaxy, etc.
For the introduction about precision machining to you is here, You can visit our website:kanouprecision.com to know more news about us. Kanou specializes in the production of quality machined parts, precision turned parts, offering professional machining services at a competitive price and on timely delivery. With our extensive machining capabilities, we produce the most challenging precision machined parts covering all Industries especially in mass production in the automotive industry.
Our main products including metal assembly part, medical component, Light part, connectors, fasteners, automotive spare part, aerospace components, auto components, etc, we can also custom the precision part as customer’s requirement, and assembly service is also acceptable. Our purpose is to make more benefits to the customer.
By Sunny Tang
Polishing technology is widely used in precision machining field, It’s very important processing that no matter for precision machined parts or Mold Parts. With the wide application of hardware products, the appearance quality requirements for hardware is becoming more and more higher, then the requirements for surface polishing will also be higher, and the roughness requirements for mirrored and highlighted surface products is especially higher, so the requirements for polishing also becoming higher and higher. Polising Not only increases the beauty of the precision machined parts, but also can improve the Corrosion and wear resistance of the material surface for precision machining parts, it also Convenient to Injection molding processing such as making plastic products easy to demold, reduce the production of injection cycle etc.
A:Rough polishing and grinding: The surface was normally rough after processing of Lathe, Grinding, CNC, cutting or EDM, It need be polished by using oilstone, Use kerosene as the lubricant,the General order of use will be #180 ~ #240 ~ #320 ~ #400 ~ #600 ~ #800~ #1000.
Whetstone polishing is very important and difficult processing, According to the different specifications of processed products like automotive parts, Cross lapping was performed equably at an Angle of about 70 degrees, The optimal round trip range is about 40 ~ 70 mm. Whetstore processing will also be changed according to the material for machined parts, In order to save the time, they will choose #400 to start.
B: Normal Polishing mainly use sandpaper and kerosene.After Whetstone processing will be sanding paper, When sanding paper, pay attention to the round edges, sharp corners, round corners and orange peel appears. so the process of whestone should be done with high precision. The important point for Sanding paper: Sand paper is intersected with hard sticks for grinding like Whetstone processing , and the grinding frequency of one side of sand paper is about 10 ~ 15 times. If the grinding time is too long, the abrasive force of sand paper will be reduced, and then it will lead the surface finish be uneven( This is one of the reason for orange peel appears). sanding paper usually use bamboo piece to grind, Actually the optimal ways is use the wood bar with less elastic or aluminum bar with Low hardness to grind at a 45 degree angle. The grinding surface should not be rubber or highly elastic materials, it can be grind at Acute Angle if the shape can’t grind at 45 degree angle. The Numbers of sandpaper are #220~ #320~ #400 ~#600~ #800 ~#1000~#1200~#1500. In fact #1500 sandpaper is only suitable for hardened die steel (above 52HRC) and not for prehardened steel as this may cause surface burns to the prehardened steel.
C:Precision polishing mainly use diamond paste. If use polishing wheel that mixes diamond abrasive powder or paste to grinding, The paste and polishing wheel can remove the Grinding crack that remained by #1200 and # 1500 sand paper. and then polishing by using felt and diamond paste.It can use the clean polishing chamber in mold processing workshop directly if the polishing precision is Ra0.2, If the polishing precision is very high, then it must use an absolutely clean space to process. It will scrap the polishing surface in high precision if the space has Dust, smoke, dandruff and spittle.
Our Kanou Precision use these polishing technology to service the customer, and also provide kind of solution for customer’s project. We always provide the precision machining part, cnc machined part, CNC turned part, CNC millded part, Mechanical components, automotive spare part to customer, Especially for mass production auto part, these all need this polishing technology, and we received highly praise from customer. We will keep to learn more polishing skills, and bring more advanced polishing tool and meterial to provide more high precision spare parts to customer.
Do you want to know more knowledge about technical skills? pls check this link for more: www.kanouprecision.com/blog/