A common practice for repairing expensive broken or worn parts, such as may occur when, for example,

Question:

A common practice for repairing expensive broken or worn parts, such as may occur when, for example, a fragment is broken from a forging, is to fill the area with layers of weld bead and then to machine the part back to its original dimensions. Prepare a list of the precautions that you would suggest to someone who uses this approach?