This article reveals the core logic of four classic forging processes (die forging, cold forging, open die forging,
Ring Rolling), helping you understand the performance advantages and application scenarios of each process.
I. Die Forging
For mass production of high-precision, high-strength small and medium-sized parts, die forging provides dual guarantees of efficiency and performance.
Also known as closed-die forging, it places metal blanks in closed die cavities and applies high-intensity pressure to make the blanks fully fill the cavities, forming complete part shapes in one go.
Advantages of Die Forging:
- High material utilization rate, significantly reducing scrap waste and production costs;
- High production efficiency, with intelligent die forging production lines enabling continuous mass production;
II. Cold Forging
Pursuing strict dimensional tolerance and smooth surface? Cold forging can meet the requirements precisely.
Cold forging is a forging process carried out at room temperature, which realizes plastic deformation by applying high pressure to metal through dies without preheating blanks.
Advantages of Cold Forging:
- Strict dimensional tolerance control, meeting the assembly requirements of precision components;
- High surface finish of forgings, no additional grinding and polishing required, reducing subsequent processes;
- High material utilization rate and remarkable economy.
III. Open Die Forging
When parts weigh tens of tons with extra-large size and complex shape, only open die forging is competent.
Also known as open-die forging, it achieves gradual plastic deformation by directly applying hammering or pressure to metal blanks. With more flexible forming process, it is the only feasible technology for manufacturing large forgings, and also one of the core advantages of Jiangyin Liaoyuan.
Advantages of Open Die Forging:
- Processable forgings weighing 0.5-300 tons, meeting the needs of core components of heavy equipment;
- Continuous and through metal flow lines, eliminating structural defects (such as shrinkage, inclusions, pores) and improving fatigue resistance of parts;
- Refined and uniform grains, excellent comprehensive mechanical properties, suitable for key components bearing heavy loads and impact loads;
- Flexible forming, customizable production of non-standard large forgings to adapt to special working conditions.
IV. Ring Rolling
In the manufacture of annular parts, ring rolling is the optimal solution balancing performance and efficiency.
Ring rolling processes thick circular blanks into thin-walled annular forgings through a combination of "punching + rolling extrusion". Different from other processes, ring rolling realizes gradual expansion and forming of metal blanks through synchronous radial and axial rolling, specially adapting to high-precision manufacturing of various annular parts.
Advantages of Ring Rolling:
- No welds or inclusions in forgings, strong structural integrity and stable and reliable mechanical properties;
- Metal flow direction is consistent with the stress direction of annular parts, optimizing stress distribution and improving load-bearing capacity;
- Processable annular forgings with high dimensional accuracy, meeting the assembly requirements of high-end equipment.
Jiangyin Liaoyuan – Customize the Optimal Forging Solution for You
Different forging processes have their own focuses: die forging for mass precision parts, cold forging for high precision and surface quality, open die forging for large heavy-load parts, and ring rolling for key annular parts. The core of process selection lies in matching the size, precision, batch and working conditions of parts.
As an enterprise focusing on high-end forging manufacturing, Jiangyin Liaoyuan is proficient in mainstream forging processes. It can accurately match the optimal process plan according to part size, precision requirements, batch demand and working conditions. Equipped with large open die forging equipment, high-
Precision Ring rolling units and a complete
Heat Treatment production line, the company provides integrated services for wind power, construction machinery, high-end equipment and other fields. If you need a customized forging solution, welcome to contact Jiangyin Liaoyuan at any time—we forge your core competitiveness with professional processes!
