Analysis of the difference between automotive stamping parts and sheet metal parts?

2019-11-07 17:08:26

A lot of things in our life are formed by precision hardware processing, such as auto parts, bolts, mobile phone shell, etc. many friends who are engaged in this field ask about the difference between auto sheet metal parts and stamping parts?

Sheet metal parts include stamping parts. Not all sheet metal parts are stamping parts.

Stamping part is a kind of forming processing method which uses press and die to exert external force on sheet, strip, pipe and profile to produce plastic deformation or separation, so as to obtain the required shape and size of workpiece (stamping part). Stamping and forging belong to plastic processing (or pressure processing), collectively known as forging.

Stamping process can be roughly divided into separation process and forming process (including bending, drawing and forming).

The separation process is to separate the stamping part from the blank along a certain contour line in the stamping process. At the same time, the quality of the separated section of the stamping part must meet certain requirements.

The forming process is to make the stamping blank plastic deformation under the condition of no damage, and transform it into the required finished product shape, at the same time, it should also meet the requirements of dimensional tolerance.

According to the temperature of stamping, there are two ways: cold stamping and hot stamping. It depends on the strength, plasticity, thickness, deformation degree and equipment capacity of the material. At the same time, the original heat treatment state and end use conditions of the material shall be considered.

Sheet metal is a comprehensive cold working process for sheet metal (usually under 6mm), including shearing, punching / cutting / compounding, folding, welding, riveting, splicing, forming (such as automobile body), etc. Its remarkable feature is that the thickness of the same part is the same Generally speaking, the basic equipment includes shearing machine, numerical control punch, plasma, water jet cutting machine, compound machine, bending machine and various auxiliary equipment such as uncoiler, leveling machine, deburring machine, spot welder, etc.