Jinan mold manufacturing has now become a more common thing in industrial production. The accuracy of die manufacturing itself is relatively high, which can be said to meet all the application requirements. There are many customers using the mold, some details are not very clear, which will cause some problems in the use of the mold
1) for rough polishing, after milling, EDM, grinding and other processes, the mold manufacturing surface can be polished with a rotary surface polishing machine or an ultrasonic grinder with a speed of 35000-40000 rpm. The common method is to remove the white EDM layer with a grinding wheel with a diameter of Φ 3mm and a diameter of wa × 400, and then grind the process oilstone. Strip stones are used as lubricants or coolants. The general application sequence is to save time, and many mold manufacturers choose from 400 to 240 to 320 to 400 to 600 to 800 to 1000.
2) semi fine polishing: the semi-fine polishing of mold manufacturing mainly uses sandpaper and fire oil. The number of sandpaper is in order of? 400 ~? 600 ~? 800 ~? 1000 ~? 1200 ~? 1500. In fact, only die steel suitable for hardening (above 52hrc) can be used for? 1500 sandpaper, which is not suitable for pre hardening steel, because it may cause surface burning of pre hardening steel parts
3) diamond paste is mainly used for fine polishing. If a polishing cloth wheel is used to mix diamond powder or grinding paste for grinding, the general grinding sequence is 9 μ m (× 1800) ~ 6 μ m (× 3000) ~ 3 μ m (× 8000). Using 9 μ m diamond abrasive paste and polishing cloth wheel to remove the rough grinding marks left by ×× 1200 and ×× 1500 abrasive paper, and then using felt and diamond abrasive paste to polish, the sequence is 1 μ m (? 14000) ~ 1 / 2 μ m (? 60000) ~ 1 / 4 μ M (? 100000), and the polishing process with the precision of more than 1 μ m (including 1 μ m) can be carried out in the clean polishing room of the mold processing workshop. If polishing is more refined, there must be an absolutely clean space. Dust, smoke, dandruff and saliva are working for hours
The above is an introduction to the forms of mold polishing in Jinan. For more information, please visit the official website