edging

Edging is also an open die forging process often used in manufacturing practice, to prepare a work for sequential metal forging processes. In edging, open die with concave surfaces plastically deform the work material. Edging acts to cause metal to flow into an area from both sides. Edging and fullering both are used to redistribute bulk quantities of the metal forging's material.









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Sand Casting Process

Steps in Sand Casting

1.Pour molten metal into sand mold

2. Allow metal to solidify

3. Break up the mold to remove casting

4. Clean and inspect casting

5. Heat treatment of casting is sometimes required to improve metallurgical properties

 

Making the Sand Mold

 

1.The cavity in the sand mold is formed by packing sand around a pattern, then     

  separating the mold into two halves and removing the pattern

2.The mold must also contain gating and riser system

3.If casting is to have internal surfaces, a core must be included in mold

4.A new sand mold must be made for each part

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