In the field of mechanical processing industry, the main raw materials are aluminum, copper, POM steel, stainless steel, die steel, Unilever rubber and so on. According to the hardness of materials, reasonable cutting tools and processing technology will be selected. The processing of raw materials for general equipment spare parts is divided into grades. Take a look at the following grades:
- General non-ferrous metals: machinability grade (1), machinability of materials. Easy to process, relative machinability K: 8-20, representative materials: aluminum magnesium alloy, 5-5-5 copper lead alloy;
- Free cutting steel: machinability grade (2), machinability of material. Free cutting, relative machinability K: 2.5 ~ 3, representative material: automaton steel（ σ b＝400～500MPa);
- Free cutting steel: machinability grade (3), machinability of material. Free cutting, relative machinability K: 1.6 ~ 2.5, representative material, 30 steel normalizing（ σ b＝500～580MPa）;
- Machinability grade of general carbon steel and cast iron (4), machinability of materials, general relative machinability K: 1.0-1.5, representative materials, 45 steel and gray cast iron;
5, machinability grade (5) of slightly difficult cutting materials, machinability of materials, common relative machinability K: 0.7-0.9, representative materials, 85 rolling, 2Cr13 quenching and tempering（ σ b＝850MPa）
6, machinability grade (6), machinability, relative machinability K: 0.5-0.65, representative material, 65Mn quenching and tempering（ σ B = 950-1000mpa), free cutting stainless steel;
7, machinability grade of hard cutting material (7), machinability of material, relative machinability K: 0.15-0.5, representative material, stainless steel (1Cr18Ni9Ti); 8, it is difficult to cut the material to be machinability grade
(8) The representative materials are heat resistant alloy steel and titanium alloy
The above is the raw material cutting grade sharing, thank you for your attention!
ken. tang@chengcg.com
