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Manufacturing Processes - Squeeze Casting

 

Manufacturing: Metal Casting


Casting Methods Online Resources

 

Metal Casting Techniques - Squeeze Casting

Squeeze Casting combines the processes and advantages of Gravity Casting and Forging. Squeeze Casting uses metal permanent molds and it has a material tank. The pouring process uses a cylinder at the bottom of the material tank to push the material into molds. This pouring process is similar as Gravity Casting, but Gravity Casting uses gravity instead of a cylinder to load the mold.

After material goes into the mold, the cylinder of the material tank continues loading pressure, about 300 tons, until the end of the casting cycle. When the material in the mold starts to cool down, it will begin to shrink. The cylinder will continue the loading pressure to push more metal into the mold, making the casting more solid and with greater detail. This makes the process similar to Forging. The casting quality of Squeeze Casting is close to Forging.

Process

Liquid metal is introduced into an open die, just as in a closed die forging process. The dies are then closed. During the final stages of closure, the liquid is displaced into the further parts of the die. No great fluidity requirements are demanded of the liquid, since the displacements are small. Thus forging alloys, which generally have poor fluidities which normally precludes the casting route, can be cast by this process

 

 




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