Casting Machining

Casting machining is a machining process within the field of mechanical manufacturing. This process involves machining existing blank castings to meet specific specifications.

This process is primarily applicable to parts that require casting prior to machining. In this production process, casting machining effectively meets part precision and performance requirements.

Casting machining is used when customers require existing blank castings to be machined to their specifications. Note: Parts that require casting prior to machining are best suited for casting.

Forging

Forging is a machining process that uses a forging machine to apply pressure to a metal blank, causing it to plastically deform to produce forgings with defined mechanical properties, shapes, and dimensions. It is one of the two main types of forging (forging and stamping). Forging eliminates defects such as as-cast porosity produced during the metal smelting process, optimizes the microstructure, and, because it preserves the metal's flow lines, forgings generally have superior mechanical properties to castings of the same material. For critical parts in machinery subject to high loads and harsh operating conditions, forgings are often used, except for simpler shapes that can be processed using rolled plates, profiles, or welded parts.

The recrystallization temperature of steel is approximately 727°C, but 800°C is generally used as the dividing line. Forging above 800°C is considered hot forging; forging between 300 and 800°C is called warm forging or semi-hot forging, and forging at room temperature is called cold forging.

Forgings used in most industries are hot forged, while warm and cold forging are primarily used for forging parts in automobiles and general machinery. Warm and cold forging can effectively save material.