What are the characteristics of metal plastic forming?

The plastic forming of metals has the following characteristics:

After the forming process, the microstructure and properties of metal materials are improved and improved.

All parts subjected to alternating load or severe stress conditions generally have to go through plastic forming process to meet the use requirements.

3. Plastic forming is a chip-free forming method, so it can make the workpiece obtain a good streamlined shape and reasonable material utilization.

4. Using the plastic forming method, the dimension of the workpiece can reach higher precision and the production efficiency is high.

Plastic forming includes cold forming, warm forming and hot forming. Warm forming should consider the influence of temperature on the properties of materials, and hot forming should also consider the creep effect of materials. Metal plastic forming includes block forming, sheet forming and rolling (see plastic mechanics). All kinds of plastic forming are based on the plastic properties of metal materials, which require external force and external friction and follow the same laws of metallography and plastic mechanics.

Metal plastic forming: the material will produce stress and strain (that is, deformation) under the action of external force. When the stress generated by the force exceeds the elastic limit of the material and reaches the flow limit of the material, the force will be removed. Except for a small part of elastic deformation, most irreversible permanent deformation, that is, plastic deformation, will still exist, which will change the shape and size of objects and the internal structure and properties of materials. Most metal materials have the property of plastic deformation without damage, and the method of forming metal materials by using this property is collectively called metal plastic forming.