In this post, Part 3, we will continue introducing the plastic forming processes – Stamping and deep-drawing processes for sheet metals.
2.4 Metal Drawing Process
2.4.1 Definition of Metal Drawing Process
Applying external force to the front end of the metal billet, which will be pulled out from a die hole smaller than the cross-section of the billet to obtain a product with the corresponding shape and size. This process is called the drawing process.
2.4.2 Advantages of Metal Drawing Processes
- This process produces products with precise dimensions and a smooth surface finish.
- The tools and equipment required for this process are simple.
- This process is suitable for the continuous and high-speed production of long products with a small cross-section.
2.4.3 Disadvantages of Metal Drawing Processes
- The total deformation between two annealing processes is limited by the amount of deformation per pass.
- The length of the product is limited.
2.4.4 Application of Metal Drawing Processes
Drawing is a primary processing method for metal pipes, rods, profiles, and wires.
2.4.5 Click to find out Sinoway’s Deep-Drawing Capabilities
2.5 Metal Stamping Process
2.5.1 Definition of Stamping Processes
The stamping process is a forming process that uses a press and a die to apply external force to sheets, strips, pipes, and profiles to produce plastic deformation or separation, thus obtaining the required shape and size of the workpiece. The workpieces produced by the stamping process are usually called stamped parts.
2.5.2 Characteristics of Stamping Processes
- The stamping process can be used to obtain lightweight, high-rigidity metal products.
- It has good productivity, suitable for mass production at low cost.
- The quality consistency of stamped parts is very high.
- It has high material utilization, good shear, and recycling properties.
2.5.3 Application of Metal Stamping processes
60 to 70% of the world’s steel used in automotive and railway industries is sheet metal, most of which is processed into finished products using the stamping process.
The car body, chassis, fuel tank, radiator fins, boiler steam drum, container shell, motor, and electrical equipment’s iron core silicon steel sheets are all processed using the stamping process.
There are also a large number of stamped parts in products such as instruments, household appliances, bicycles, office machinery, and daily utensils.
