About pressure processing

What is pressure processing?

Pressing processing uses the plastic deformation of metal under the action of external force to obtain raw materials, blanks or parts with a certain shape, size and mechanical properties. It is called metal pressure processing, also known as metal plastic processing.

Pressure processing classification

1. Rolling: The metal blank is compressed and deformed in the gap between two rotary rolls to obtain various product processing methods. Relying on friction, the blank continuously passes through the gap between the rolls and deforms under pressure.

Main products: profiles, round steel, square steel, angle steel, rails, etc.

2. Forging: Under the action of forging equipment and tools (dies), the blank or ingot is plastically deformed to obtain forgings with a certain geometric size, shape and quality.

3. Extrusion: The metal blank is compressed in the extrusion die and is deformed by the extrusion die hole.

4. Drawing: A processing method in which a metal blank is pulled through the die hole of the drawing die and deformed.

5. Stamping: The sheet metal is separated or formed under pressure between the dies.

6. Spinning: When the blank rotates with the mold or the spinning tool rotates around the blank, the spinning tool and the blank are fed relative to each other, so that the blank is compressed and produces continuous, point-by-point deformation.

Pressure processing features

1 Advantages:

(1) Dense structure, improved organization, improved performance, high strength, rigidity and toughness

(2) Less, no cutting, high material utilization rate.

(3) A reasonable streamline distribution can be obtained (metal plastic deformation is a solid volume transfer process).

(4) High production efficiency.

2 Disadvantages:

(1) The surface quality of general process is poor (oxidation).

(2) Complicated shapes cannot be formed (relatively)

(3) The equipment is huge and expensive.

(4) Poor working conditions (high intensity, loud noise)