The basis of the tooling is the common materials and basic requirements for stamping processes

Mon May 01 14:15:49 CST 2023

In addition, some stamping materials have special requirements, such as heat transfer, electrical conductivity, magnetic conductivity, corrosion resistance, etc.

Commonly used materials for stamping include metallic and non-metallic materials, and metallic materials are divided into two categories: ferrous and non-ferrous metals.

Commonly used stamping materials include cold-rolled carbon steel plates, galvanised steel plates, tin-plated steel plates, stainless steel plates, copper plates, aluminium plates, etc.

1. Cold-rolled carbon steel plate

(1) ordinary cold-rolled carbon steel plate. Ordinary cold-rolled carbon steel plate, ordinary carbon structural steel cold-rolled from the surface quality, dimensional accuracy, mechanical and technological properties are better than hot-rolled steel plate, widely used.

SPCC (general purpose cold-rolled carbon steel plate), SPCD (cold-rolled carbon steel plate for stamping), SPCE (cold-rolled carbon steel plate for deep stamping) originally belonged to the Japanese JIS steel grades, but now many countries or enterprises (such as Baosteel) directly used to indicate their own production of similar steel.

(2) High quality cold rolled carbon steel plate. High-quality cold-rolled carbon steel plate, cold-rolled from high-quality carbon structural steel, excellent performance, widely used.mould

2. Galvanised steel sheets

Galvanised steel is a cold-rolled steel sheet with a galvanised surface, which has good corrosion resistance, formability, weldability, paintability and other properties, in addition to retaining the properties of the original sheet. According to the different galvanizing process, galvanized steel can be divided into two types of galvanized steel and hot-dip galvanized steel.

(1) Electro-galvanised steel sheet. Electro-galvanising is the continuous deposition of zinc from a zinc salt solution onto the surface of steel sheets under the action of an electric field to achieve galvanisation.

(2) Hot-dip galvanised steel sheets. Hot-dip galvanising involves dipping the steel sheet into a molten zinc bath to achieve a galvanised surface. The continuous galvanising process is usually used, i.e. the steel plate is continuously immersed in a bath of molten zinc to achieve surface galvanisation.

3. Tin-plated steel sheets

Tin-plated steel sheets (customarily called tinplate) are cold-rolled steel sheets with a tin-plated surface, which are used in large quantities for the manufacture of food packaging boxes, bottle caps, etc. Tin-plated steel sheets have the following advantages.

(1) Beautiful appearance, good paintability and printability.

(2) Good corrosion resistance and weldability.

(3) Uniform material and excellent processing performance.

(4) As a food container, it is harmless to human body.

4. Stainless steel plate

Stainless steel plate has good corrosion resistance

5. Copper plate

Copper is second only to aluminium in the consumption of non-ferrous metal materials in China, and is most widely used in the electronics and electrical industries, with the largest amount. Copper can form alloys with many other metals, such as copper and zinc alloy called brass, copper and nickel alloy called white copper, copper and aluminum, tin and other alloys called bronze. The addition of alloying elements in copper can improve the strength, hardness, elasticity, ease of cutting, wear resistance, corrosion resistance and other properties of the material, so that it can meet a variety of use requirements.

6. Aluminium sheet

Aluminium is light, with good electrical conductivity, thermal conductivity, easy ductility, corrosion resistance and other properties, and is widely used. Aluminium has low density and high strength, and is widely used in the aerospace sector.

The material used for stamping is very important for product design and is generally considered by the designer, while the technician only needs to analyse the reasonableness of the material selection and make rationalisation suggestions.