Forging and casting are two core metal forming processes widely used in machinery manufacturing. Their forming principles are entirely different, resulting in obvious disparities in the internal structure, mechanical properties, service life and application scenarios of workpieces. This serves as an important reference for enterprises in part selection and production.

Forging is an important metal plastic forming process in machinery manufacturing, and a core processing method for producing high-end mechanical parts. Unlike turning and casting, forging applies external impact or compression force to metal blanks to produce plastic deformation, so as to obtain forgings with specified shape, dimension and mechanical properties. It is widely used in engineering machinery, automobiles, rail transit, wind power, aerospace and other fields with strict requirements for strength and safety.

What Are Dalian Forgings? Introduction to Forging Process Characteristics and Application Fields

Cracks and deformation are the most frequent quality defects in Dalian forging production, commonly found in forgings for shipbuilding, mining and heavy machinery industries. These problems not only cause dimensional errors and surface damage, but may also lead to direct scrapping of finished parts, greatly increasing production costs and delivery risks. Most forging defects are not caused by raw material issues, but by non-standard control of heating, forming and cooling processes. Comprehensive refined process management can effectively eliminate cracks, deformation and other typical faults from the source.

Forging is a core processing technology for heavy machinery, shipbuilding and mining equipment. As a key equipment manufacturing base in Northeast China, Dalian has extensive forging processing demands covering large heavy-duty parts and precision mechanical components. According to processing temperature, forging technologies are mainly divided into three categories: hot forging, cold forging and warm forging. They differ significantly in forming capacity, dimensional accuracy, surface quality and mechanical properties. Accurate differentiation of process characteristics and applicable scenarios is essential for improving forging quality and controlling production costs.