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What is Hot Punching Process?

The hot punching process is an advanced hot metal press processing technology which develops on the basis of precision forging and hot extrusion in order to improve the mechanical properties of the parts by changing the processing method. The hot punching process is heating the metal blanks like precision forging, and then forming them in the mold. Except for large hot stamping, it is usually once-forming, and precision forging generally needs several times of pressure forming.
The hot punching process has extensive and far-reaching practical significance for mechanical manufacturing, daily hardware products, national defense, aerospace parts and other applications. For example, diesel engines, tractors, automobiles, missiles, etc. Have many mechanical parts that are very suitable for hot punching process. At present, the hot punching process has been widely used in daily hardware industry such as various valves, pipe fittings, nuts, etc of pipe hardware, which is punched by copper. They own matchless quality and have replaced pressure casting and casting products in the past.

T Pipe Fitting Hot Punching Die

hot punching tool die supplier

Irregular Fittings Hot Punching Tool Dies

Hollow irregular pipe fittings

The compare between hot punching process and hot extrusion process

The molds of hot extrusion and cold extrusion processes are basically the same, the flow of the metal material in the cavity is relatively simple.The shape of the formed part is simple and mostly similar to that of the cold extrusion part.
The structure of hot punching die is more complicated than the hot one, the structural feature is that the punching method is combined organically with the forming method of the cavity die. It can not only extrude the cavity extrusion die on the press, but also implement multiple orientations at one time. Under sufficient pressure, it forces the metal material to flow through the complex die cavity and is extruded to complex parts of shape of the cavity mold (injection mold).
Therefore the hot punching process is a deeper and broader development of precision forging and hot extrusion process.

The features of hot punching process

Advantages of hot punching process

copper hot forging mold

copper hot forging mold

Valve Hot Punching Die

valve hot punching die mold


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