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Stamping die with what steel

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使命召唤ol必买的武器:Stamping die with what steel

Release date:2017-06-11 author: click:

使命召唤ol手游什么时候发布 www.hdxdh.icu Stamping die materials are steel, carbide, steel-bonded carbide, zinc-based alloy, low melting point alloy, aluminum bronze, polymer materials and so on.

At present, most of the materials used in the manufacture of stamping dies are steel-based. Commonly used mold parts are: carbon tool steel, low alloy tool steel, high carbon high chromium or medium chrome tool steel, medium carbon alloy steel, high speed Steel, base steel and hard alloy, steel bonded carbide and so on.

Carbon tool steel

In the mold application of more carbon tool steel for the T8A, T10A, etc., the advantages of good processing performance, cheap. But the hardenability and red hardness is poor, heat treatment deformation, bearing capacity is low.

Low alloy tool steel

Low alloy tool steel is in the carbon tool steel on the basis of adding the right amount of alloying elements. Compared with the carbon tool steel, reducing the quenching deformation and cracking tendency, improve the hardenability of steel, wear resistance is also better. The low-alloy steel used in the production of the mold has CrWMn, 9Mn2V, 7CrSiMnMoV (code CH-1), 6CrNiSiMnMoV (code GD).

3. High-carbon high-chromium tool steel

Commonly used high-carbon high-chromium tool steel Cr12 and Cr12MoV, Cr12Mo1V1 (code D2), they have good hardenability, hardenability and wear resistance, heat treatment deformation is very small, high wear-resistant micro-deformation die steel, Ability to be second only to high speed steel. But the carbides segregation serious, must be repeated upsetting (axial upset, radial pull) to change to reduce the carbide non-uniformity, improve the use of performance.

High-carbon chrome tool steel

Cr4W2MoV, Cr6WV, Cr5MoV and so on, which have low chromium content, less eutectic carbide, uniform carbide distribution, small heat treatment deformation, good hardenability and dimensional stability Sex. Compared with the high carbon high chrome steel with relatively serious segregation of carbides, the performance is improved.

High speed steel

High-speed steel has the highest hardness of mold steel, wear resistance and compressive strength, high carrying capacity. W8Cr4V (code 8-4-1) and W6Mo5 Cr4V2 with tungsten content (code 6-5-4-2, M2 in the United States) and carbonized vanadium high speed steels for improved toughness 6W6Mo5 Cr4V (code 6W6 or low carbon M2). High speed steels also need to be diverted to improve their carbide distribution.

6. Base steel

In the basic components of high-speed steel to add a small amount of other elements, the appropriate increase or decrease in carbon content to improve the performance of steel. This kind of steel is called base steel. They are not only the characteristics of high-speed steel, with a certain wear resistance and hardness, and anti-fatigue strength and toughness are better than high-speed steel, high strength and toughness for cold work die steel, material costs lower than high-speed steel Mold commonly used in the base steel 6Cr4W3Mo2VNb (code 65Nb), 7Cr7Mo2V2Si (code LD), 5Cr4Mo3SiMnVAL (code 012AL) and so on.

Carbide and steel bonded carbide

Carbide hardness and wear resistance is higher than any other kind of die steel, but the bending strength and toughness is poor. Used as mold carbide is tungsten and cobalt, the impact of small and high wear resistance of the mold, you can choose a low cobalt content of cemented carbide. On the impact of large molds, can choose a higher cobalt content of cemented carbide.

The cemented carbide is made of iron powder by adding a small amount of alloying element powder (such as chromium, molybdenum, tungsten, vanadium, etc.) to binder, titanium carbide or tungsten carbide as a hard phase, with powder metallurgy sintering method. The matrix of cemented carbide is steel, which overcomes the shortcomings of hard alloy toughness and difficult machining, and can be cut, welded, forged and heat treated. Steel-based cement contains a lot of carbide, although the hardness and wear resistance is lower than the carbide, but still higher than other steel, quenched, tempered hardness of up to 68 ~ 73HRC.

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