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Common Manufacturing Process Types of Stamped Workpieces

2019/8/20 8:49:47 click:

Stamping process can be roughly divided into separation process and forming process (bending, drawing and forming). The separation process is to separate the stamping part from the blank in the stamping process, and the quality of the separated section of the stamping part must also meet certain requirements. 

The forming process is to deform the stamping blank and transform it into the required shape, and at the same time, it should also meet the requirements of dimensions and other aspects. The following is a brief introduction to Yixin Precision Metal and Plastic Ltd. What factors will affect the quality of stamping parts:

First, the selection method of stamping materials
The new plates are low titanium alloy, magnesium alloy, carbon steel, stainless steel, aluminum, copper and their alloys, etc. They have low deformation resistance and are suitable for cold stamping process.
(1) Copper and aluminum and their alloys are often used as components of electrical equipment due to their good ductility and excellent electrical conductivity.
(2) Stamping process of carbon steel and stainless steel is often used for equipment shells, components, boxes, etc., but due to its strong rigidity, stamping oil is usually used to improve the process.
(3) Titanium alloy stamping is mainly used for large-scale equipment, airplanes, ships, satellites, etc. The process is difficult, so special stamping oil must be used to improve the process level when titanium alloy stamping is carried out.
Second, the common types of stamping process
(1) Bending: A molding method for bending metal plates, pipe fittings and profiles to a certain angle, curvature and shape. Bending is one of the main processes widely used in stamping production.
(2) deep drawing: deep drawing is also called drawing or calendering. it is a stamping method that uses a die to turn the flat blank obtained after blanking into an open hollow part.
(3) stretch: that stretch die applies a pulling force to the sheet metal to cause the sheet metal to generate non-uniform tensile stress and tensile strain, and then the bon surface of the sheet metal and the stretch die gradually expands until the sheet metal and the stretch die are completely bonded.
(4) Spinning: It is a metal rotating process. In the process, the blank is actively rotated along with the rotating die, and the spinning head is moved relative to the blank to continuously deform the blank to obtain the required hollow parts.
(5) Trimming: The shape is secondarily trimmed by using a predetermined grinding tool shape.  Mainly reflected in the pressure surface, feet, etc.
(6) Bulging: It is a method of using a die to stretch and thin the local surface area of a sheet to obtain parts. Commonly used are ups and downs forming, cylindrical blank bulging and flat blank stretch forming.
(7) flanging: is a deformation method of bending the material of the thin plate blank edge or the narrow band area of the prefabricated hole edge on the blank into a vertical edge along a curve or a straight line.
(8) necking: it is a punching method to reduce the diameter of the open end of a stretched hollow piece or tube blank. The diameter change at the end of the workpiece before and after necking should not be too large, otherwise the end material will wrinkle due to severe compression deformation.
These are the factors that affect the quality of stamping parts. With the rapid development of precision stamping technology, small stamping parts can meet the needs of various machine tools, instruments and other manufacturing industries.
If you need more knowledge, please visit our official website or contact us. We will provide you with a more comprehensive answer.
Source of this article:https://ympcnc.com/