The mold factory teaches you the basic knowledge of processing principle

As a mold manufacturer, Chengda mold teaches you the basic knowledge of mold processing

1. Special production and processing: refers to some new production and processing methods besides drilling production and processing.

Electric gauge: the high-frequency pulse power supply provides a set of electrical main parameters, such as pulse width, single pulse gap and Z high value current for spark discharge molding production and processing.

Polarity utility: In the whole process of WEDM, the condition that the positive and negative characteristics are different and the electric erosion amount is different is called the opticity utility.

2. Special production and processing characteristics:

① Use softness to control hardness

② It is conducive to the complexity of production and processing

③ Not limited by raw material strength

④ Good surface quality can be obtained

Production and processing methods: spark discharge molding production and processing, spark discharge wire cutting processing, photoelectric catalytic production and processing, laser cutting processing, ultrasonic production and processing.

3. The basic concept of spark discharge forming production and processing: use the electric etching condition that causes single pulse corona discharge between special tools and product workpieces (positive and negative electrodes) to etch unnecessary metal materials, so as to achieve the specifications, appearance and surface quality required by the technical standards of parts.

The following conditions shall be met:

① It is necessary to maintain a certain gap between the electrical level of the special tool and the surface of the product workpiece to be processed. Therefore, it is necessary to have a fully automatic tool feeding and adjustment equipment of the electrical level of the special tool in WEDM

② Corona discharge must be instantaneous single pulse charging and discharging, so high frequency pulse power must be used in WEDM

③ Corona discharge must be carried out in liquid substances with certain dielectric strength energy.