The basic procedure of mechanical polishing is briefly introduced

Date：2018/10/11Type：Company News

Keywords：大宏新材料,MIM材料,金属粉末注射MIM,MIM陶瓷表壳,MIM智能穿戴,MIM通讯医疗,金属粉末注射成型

In the explanation what stainless steel polishing polishing method, the article we know that stainless steel polishing with mechanical polishing, chemical polishing, electrolytic polishing, ultrasonic polishing, polishing, magnetic fluid grinding polishing polishing ways, big macro found new materials in order to get high quality polishing effect, the most important thing is to have a high quality oil stone, sanding and polishing tools such as diamond grinding paste, and AIDS. The choice of polishing process depends on the surface condition after the initial processing, such as machining, edm, grinding and so on. The following is a brief introduction of the basic process of mechanical polishing by the new materials of dahong:


1. Rough casting: after milling, edm, grinding and other processes, the surface can be polished by rotary surface polishing machine with rotating speed of 35,000-40,000 RPM or ultrasonic grinding machine. Metal powder injection molding manufacturers, there are common methods using Φ 3 mm in diameter, the wheels of the WA # 400 to remove white edm layer. It is followed by hand abrasive, strip oil and kerosene as a lubricant or coolant. The general order of use is #180 ~ #240 ~ #320 ~ #400 ~ #600 ~ #800 ~ #1000. In order to save time, we chose to start with #400.


2. Semi-fine polishing: semi-fine polishing mainly USES sandpaper and kerosene. The number of sandpaper is: #400 ~ #600 ~ #800 ~ #1000 ~ #1200 ~ #1500. In fact, the #1500 sandpaper is only suitable for hardened die steel (52HRC above), but not for pre-hard steel, because it may cause the surface of pre-hard steel to burn.


3. Fine polishing: diamond grinding paste is mainly used for fine polishing. If the new material is ground with a polishing cloth wheel mixed with diamond grinding powder or grinding paste, the usual grinding sequence is 9 mm (#1800) ~ 6 mm (#3000) ~3 mm (#8000). Diamond grinding paste and polishing cloth wheel of 9 x m can be used to remove the hairline marks left by #1200 and #1500 sandpaper. Then polish with felt and diamond paste in order of 1 mm (#14000) ~ 1/2 mm (#60000) ~1/4 mm (#100000).


A polishing process with precision requirements above 1 m (including 1 m) is recommended in a clean polishing room in the mold processing workshop. An absolute clean space is required for more precise polishing. Dust, smoke, dandruff, and spittle can all be discarded after hours of work to get a high-precision polished surface.


The above is the basic procedure of mechanical polishing simply concluded by the big big new material small, more about the metal powder injection molding technology other content, welcome to consult guangdong big big new material metal powder injection molding MIM technical professional team to answer for you!

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