In the cold stamping process, the stamping die used by Guangdong mechanical processing plant is a special process equipment that processes materials (metal or non-metal) into parts (or semi-finished products), which is called cold stamping die (commonly known as cold stamping die). Stamping is a kind of pressure processing method which uses the die installed on the press to exert pressure on the material at room temperature to produce separation or plastic deformation, so as to obtain the required parts.
There are many forms of stamping dies in Guangdong mechanical processing plant, which can be classified according to the following main features:
1. Classification according to process properties
(1) Blanking die: a die that separates materials along a closed or open contour. Such as blanking die, punching die, cutting die, cutting die, trimming die, cutting die, etc.
(2) Bending die: the die that makes the blank or other blank produce bending deformation along the straight line (bending curve), so as to obtain the workpiece with a certain angle and shape.
(3) Drawing die: it is a kind of die that makes the blank of sheet metal into open hollow parts, or further changes the shape and size of the hollow parts<< Guangdong Machinery Factory is worth paying attention to
(4) Forming die: it is a kind of die that directly copies the blank or semi-finished product according to the shape of punch and die, while the material itself only produces local plastic deformation. Such as bulging die, necking die, expanding die, relief forming die, flanging die, shaping die, etc.
2. Classification according to process combination degree
(1) Single process Die: a die that completes only one stamping process in one stroke of the press.
(2) Compound die: only one station, in a press stroke, in the same station at the same time to complete two or more stamping process of the mold.
(3) Progressive die (also known as continuous die): in the blank feeding direction, with two or more stations, in a press stroke, in different stations to complete two or more stamping processes.
Cold stamping die is called cold stamping die.
The cold stamping die of Guangdong mechanical processing plant is a preparation method of high-performance structural ceramic materials for cold stamping die and its accessories in die industry. The high-performance ceramic die and its accessories materials are composed of zirconia, yttrium oxide powder with aluminum and praseodymium elements. The preparation process is to mix zirconia solution, yttrium oxide solution, praseodymium oxide solution, zirconia powder with aluminum and praseodymium elements Alumina solution is mixed into mother liquor according to a certain proportion, and ammonium bicarbonate is dropped into the mother liquor. The raw materials for ceramic mold and its accessories are synthesized by coprecipitation method. The precipitate generated by reaction is filtered, dried and calcined to obtain ultra-fine powder of high-performance ceramic mold and its accessories. After molding, sintering and finishing, high-performance ceramic mold and its accessories are obtained. The advantages of the invention are that the service life of the cold stamping die and its accessories made by the invention is long, there is no bonding phenomenon between the die and its accessories and the stamping parts in the stamping process, and the surface of the stamping parts is smooth and burr free, which can completely replace the traditional high speed steel and tungsten steel materials.