eng. yaser mohamed abas elkelawy

Identifying Casting Defects

A faulty casting has arrived at your facility’s door. You’re not exactly sure what’s wrong with it, but from what you’ve heard, you’re pretty sure it’s “porosity.” You call your

diffrent types of castings defects

A properly designed casting, a properly prepared mould and correctly malted metal should result in a defect free casting. However, if proper control is not exercised in the foundry-sometimes it

Speed of the Mill

The operating speed of the mill can be expressed in percent of the mill critical speed. The optimal operating speed depends mainly on filling degree, grinding media size and type

HOW METALS SOLIDIFY

Making a casting involves steps

heat treatment

Grain boundaries serve as barriers to dislocations, raising the stress required to cause plastic deformation. The second phase boundaries resist the dislocations motions, increasing the material strength. The

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