The advantages of die-casting die forging technology in the hardware industry
The die casting die forging process is a process performed on a dedicated die casting forging machine. The basic process is: zinc alloy die-casting metal liquid is first filled into the cavity of the mold by low-speed or high-speed casting. The mold has a movable cavity surface, which is pressed and forged with the cooling process of the molten metal, thereby eliminating the blank. Shrinkage shrinkage defects also cause the internal structure of the blank to reach the forged broken grain. The overall mechanical properties of the blank are significantly improved. In addition, the blank produced by the process has an outer surface finish of 7 (Ra1.6), such as a cold extrusion process or a machined surface, with a metallic luster. Therefore, we call the die-casting forging process "the ultimate forming process"
From the appearance, it is difficult to distinguish the blanks produced by the two processes. Zinc alloy die casting is even more difficult to distinguish if you see a machined part. Therefore, we can only analyze and judge in reverse: First, die-casting parts are generally “structural parts”, while die-casting die-forgings are “functional parts”. "Structural parts" are opposite to "functional parts". Zinc alloy die casting The latter generally refers to impact, high temperature, pressure, strength (force), as well as surface treatment (such as anodizing), heat treatment (solid solution strengthening). Typical products are engine blocks, hubs, pistons, connecting rods, brake shoes, pneumatic or hydraulic valve bodies (such as the common three-position five-way valve). The former is like a door frame, an instrument panel, an engine cover, and the like. The second is to judge from the material composition.
