Metal stamping is a technology that uses punches and dies to deform or crack iron, aluminum, copper, stainless steel, and other plates and dissimilar materials to meet the applicable shapes, specifications, and dimensions of the products produced. Metal stamping is sometimes called sheet forming, but it is slightly different. The forming method of plastic processing is collectively referred to as sheet forming. Metal stamping parts are commodities after a series of processes, which have different names in different processes.

The production of metal stamping parts must be carried out in strict accordance with the requirements of the procedures to ensure that all specifications of the products, such as bending, radian, aperture size, and opening position, fully meet the requirements. Sometimes, a little deviation can cause the whole product to be defective or even scrapped, which not only delays production but also wastes human, material, and financial resources.

The shape of materials and the hole shape of punched parts shall be simple and symmetrical. Try to use regular shapes such as round or rectangular, and avoid long grooves or slender cantilever structures in metal stamping processing. The thickness of raw materials must be considered in the structural scale of blanking parts. Fillet arc is used to connect the intersection of straight line and straight line, curve and straight line on the blanking part, to avoid cracks caused by stress convergence at the intersection angle.

The shape of zigzag parts shall be symmetrical as far as possible, and the zigzag radius shall not be less than the minimum allowable zigzag radius of raw materials. If the zigzag edge is too short, it is not easy to form.

After the production of metal stamping parts is completed, they must be strictly inspected to ensure that they fully meet the factory and use requirements.

Common processing technology of metal stamping parts

1. Blanking: a stamping process that enables the separation of sheets (including punching, blanking, trimming, sectioning, etc.).

1. Bending: the stamping process of bending the sheet metal to a certain angle and shape along the bending curve.

1. Deep drawing: a stamping process that turns flat sheet metal into various open hollow parts, or further changes the shape and size of hollow parts.

1. Local forming: a stamping process (including flanging, bulging, leveling, and shaping) that uses local deformation of various properties to change the shape of a blank or stamping part.

Process characteristics of metal stamping parts

1. Stamping is a processing method with high production efficiency and low material consumption. The stamping process applies to the production of large quantities of parts and products, which is convenient to realize mechanization and automation, and has high production efficiency. At the same time, stamping production can not only strive to achieve less waste and waste-free production but also make full use of leftover materials even in some cases.

1. The operation process is convenient, and there is no need for the operator to have a high level of skills.

1. The stamped parts generally do not need to be machined, and have high dimensional accuracy.

1. Stamping parts have good interchangeability. Stamping processing stability is good, and the same batch of stamping parts can be used interchangeably, without affecting assembly and product performance.

1. Because stamping parts are made of plates, their surface quality is good, which provides convenient conditions for subsequent surface treatment processes (such as electroplating and painting).

1. Stamping can obtain parts with high strength, high stiffness, and lightweight.

1. The cost of stamping parts produced in batches with molds is low.

1. Stamping can produce parts with complex shapes that are difficult to be processed by other metal processing methods.

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