Even the precision casting has casting defects, such as shrinkage cavity, trachoma, fractal surface, pouring hole; Forgings on the other hand.

You can also drop the product on the floor, and listen to the sound of the crash, usually the sound of the casting muffled, the forging sound more fragile!

A casting is a piece made by casting, in which a mold or model is poured with molten steel. The process by which the metal is melted into a liquid meeting certain requirements and poured into the casting mold, and then the casting (part or blank) with predetermined shape, size and performance is obtained after cooling and solidification.

A forging is a piece made by means of forging. A forging is a piece forged by force of impact. Forging is a method of forging with certain mechanical properties, shapes and sizes by applying pressure on metal billets to produce plastic deformation.