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Re: Ok.. So what is the difference between cast and forged?

Posted by Ray Crawford on Mon Apr 01, 2002 06:27:05 PM

In reply top Re: Ok.. So what is the difference between cast and forged? posted by Paul McMillan on Mon Apr 01, 2002 05:55:51 PM

Hello All,

Here are the differences between cast and forged.
Cast is basically where molten metal is poured into a female mold. After sufficient cooling time, the mold is opened up or broken and the formed piece removed. There are many variations of this method. Casting is normally used for parts that are not highly stressed. Some piston engine components (reduction gear housings, for example) were made this way.
Forging is when the heated metal blank is hammered or pressed to final shape in between a set of dies specially made for the purpose. So forging is just a more complex version of the horseshoes mentioned! Forging is used when high part strength is required. For example, crankshafts, landing gear brackets, some radial engine crankcases (Bristol Hercules) etc.


Ray



: PS. I know what a cast metal is.. it is the forge that ha
: s got me! Unless it has to be heated up and banged ito sha
: pe like horse shoes!

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