Extrusion

Extrusion The blank is subjected to three-direction uneven compressive stress in the closed cavity, and is extruded from the orifice or slit of the mold to reduce the cross-sectional area, and the processing method for forming the desired product is called extrusion. Classification extruded (1) According to the forming temperature, the extrusion is divided into…

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Welding Process

Welding Process 1. Fusion welding: A method of locally heating and melting a surface of a connected object to a liquid and then cooling it into a unit. 2. Pressure welding: The physical effects of friction, diffusion and pressure are used to overcome the unevenness of the two joint surfaces, and the oxide film and…

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Brazing

Brazing 1.Advantage (1) The heating temperature is low, which has little influence on the microstructure and properties of the base metal and is easy to ensure the dimensional accuracy of the weldment. (2) It can realize the connection of dissimilar metals or alloys, metals and non-metals. (3) Some brazing methods can complete dozens or hundreds…

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Casting Process

Casting Process 1. Selection principle of pouring position 1) The important working surface or working surface of the casting should be downward. If it is difficult to achieve downward, it should be placed on the side as far as possible. 2) The large plane of the casting should be as far as possible. 3) Most…

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