Squeeze casting is a new technology combining casting and forging. It has the advantages of simple casting process, low production cost and complex shape of parts. It also has the characteristics of fine grain, uniform structure, good mechanical properties and high molding accuracy of die forging products. Mainly have the following points:
(1) During the forming process, the liquid metal that has not yet solidified is crystallized and solidified under the action of isostatic pressure from beginning to end; the solidified metal layer is plastically deformed under pressure, and has a heat-deformed structure with fine grains and uniform structure. At the same time, the pressure makes the outer side of the workpiece close to the inner wall of the mold, so that the shape and size of the workpiece are accurate.
(2) Due to the plastic deformation of the first crystallized solidified layer, a part of the energy is consumed, so the isostatic pressure experienced by the molten metal is not a fixed value, but decreases as the solidified layer thickens.
(3) Under the action of pressure in the solid-liquid area, forced shrinkage occurs, which can eliminate defects such as internal shrinkage and porosity of the workpiece and improve the mechanical properties of the workpiece.
(4) Compared with ordinary hot die forging, the fluidity of liquid metal is much greater than that of solid metal, and the performance of filling the mold cavity is better. It is possible to use a pair of molds to form complex parts at one time.
(5) Density and mechanical properties are basically equivalent to die forgings.
The 3003 material is mainly convenient for brazing joints, and the density above 2.8 is solved by Weizhen liquid die forging. There is no air leakage and liquid leakage when the 3003 material is brazed at high density, and the design of the as-cast and mold is very large. The material and CNC processing costs are reduced
7075 and 7A04 materials are off-limits in the foundry industry. At present, there has been no breakthrough in the global aluminum alloy foundry industry. At present, Weizhen Squeeze casting has solved the density of 7075 casting production above 2.8, and there are no sand holes in some parts. Thousands of tests of heat treatment eventually push 7075 castings to the level of physical forging
The density of the parts is slightly lower than that of physical forging. The as-cast extrusion density of liquid die forging can reach about 2.8. After T4 and T6 heat treatment at high density, the tensile strength/yield strength/elongation/hardness have almost the same mechanical properties as forging; lightweight. The drone folding arm can still maintain good performance when dropped at an altitude of 100M
The density of the parts is slightly lower than that of physical forging. The as-cast extrusion density of liquid die forging can reach about 2.8. After T4 and T6 heat treatment at high density, the tensile strength/yield strength/elongation/hardness have almost the same mechanical properties as forging; lightweight. The drone folding arm can still maintain good performance when dropped at an altitude of 100M
The density of the parts is slightly lower than that of physical forging. The as-cast extrusion density of liquid die forging can reach about 2.8. In the case of high density, the tensile strength/yield strength/elongation/hardness after T4 and T6 heat treatment has almost the same mechanical properties as forging; it has a unique advantage in welding, and there will be no foaming on the surface.
The density of the parts is slightly lower than that of physical forging. The as-cast extrusion density of liquid die forging can reach about 2.8. In the case of high density, the tensile strength/yield strength/elongation/hardness after T4 and T6 heat treatment has almost the same mechanical properties as forging; it has a unique advantage in welding. The fatigue test of the frame after effective welding is 100,000 times plus a superior grade.
The density of the parts is slightly lower than that of physical forging. The as-cast extrusion density of liquid die forging can reach about 2.8, and the tensile strength/yield strength/elongation/hardness after T4 and T6 heat treatment at high densities have almost the same mechanical properties as forging. The impact force of the skateboard bracket test reached 800KG and still remained uncracked.
The density of the parts is slightly lower than that of physical forging. The as-cast extrusion density of liquid die forging can reach about 2.8. In the case of high density, the tensile strength/yield strength/elongation/hardness after T4 and T6 heat treatment has almost the same mechanical properties as forging; it has a unique advantage in welding. The fatigue test of the frame after effective welding is 100,000 times plus a superior grade.
The density of the product can reach more than 2.8. The product does not have any sand holes in CNC processing and appearance. If the body does not have any holes and sand holes, there will be no air leakage and liquid leakage!
The density of the parts is slightly lower than that of physical forging. The as-cast extrusion density of liquid die forging can reach about 2.8. In the case of high density, the tensile strength/yield strength/elongation/hardness after T4 and T6 heat treatment has almost the same mechanical properties as forging; it has a unique advantage in welding. The fatigue test of the frame after effective welding is 100,000 times plus a superior grade.
