The square plus round continuous drawing die method is a commonly used metal processing method, which is suitable for making metal parts of various shapes. The method mainly consists of the following steps:
First of all, choose the right metal material, usually using a material with good plasticity, such as aluminum alloy or stainless steel.
Secondly, the metal material is cut into the shape of a square. Cutting can be done using a shear or laser cutter to ensure that the cutting edge is flat.
Then, the square metal material is placed into the drawing die. A drawing die usually consists of two parts, an upper die and a lower die. The shapes of the upper and lower dies are square and round, respectively.
Next, pressure is applied by a hydraulic press or mechanical press to bring the upper and lower dies closer together, so that the square metal material is continuously stretched into a circle.
During the stretching process, the pressure needs to be gradually increased to ensure that the metal material is evenly stretched and to avoid cracks or deformations.
Finally, the drawn round metal material is taken out and subjected to subsequent processing and treatment, such as cutting, grinding, polishing, etc., to obtain the final part.
The square and round continuous drawing die method has the advantages of simple operation, high production efficiency and low cost, and is widely used in parts manufacturing in automotive, aerospace, electronics and other industries.