Close Die Forging
Close Die Forging
2025-01-02
Ningbo Investment Casting Co., Ltd provides superior quality hot forging parts and components for a wide range of industries including automobile, rail, construction equipment, material handling equipment, agricultural machinery, other industries.
Thanks to our steel foundry was equipped with a complete machining line for our casting parts, we are capable of undertaking the intricate process of transforming rough forgings into finished components with high precision and surface integrity. This capability allows us to offer a one-stop service, starting from the procurement of forging blanks to the delivery of fully machined parts, tailored to our customers' drawings and specifications.
▲Close Die Forging Parts
Die Forging:
Die forging is a precision manufacturing process, also called closed-die forging for carbon steel, alloy steel, some grades of aluminum alloy and stainless steel, is an advanced manufacturing technique employed to shape metal billets into precise, high-strength components. In this process, a metal billet is positioned within a matched pair of dies and is subjected to a controlled compressive force, typically delivered by a hydraulic press or a mechanical hammer. This force induces the metal to plastically deform, flowing into the contours of the die cavity and achieving the desired geometry. Die forging is renowned for its ability to produce intricate parts with exceptional dimensional accuracy and enhanced mechanical integrity.
Streamlined Die Forging Production Process:
1. Preheating: The metal billet undergoes a controlled heating process to attain a specific temperature, optimizing its malleability and reducing the forging force necessary for deformation. This step is crucial for enhancing the material's ductility and mitigating the risk of fracture during the forging operation.
2. Die Transfer: The preheated billet is meticulously transferred to the die forging press, where it is precisely positioned between the dies designed to impart the desired shape.
3. Forging Operation: Upon closure of the dies, the press exerts a significant compressive force upon the billet. The metal deforms and conforms to the die cavity, assuming the intended shape. This operation may be executed in a single or multiple stages, contingent upon the part's complexity and the metal's forgeability.
4. Trimming: Post-forging, the part often exhibits dimensional oversize due to the springback phenomenon. Trimming is the process of removing this surplus material to meet the specified final dimensions.
5. Heat Treatment: To confer the desired mechanical properties, such as tensile strength, hardness, and ductility, the forged part undergoes heat treatment. This may include processes like normalization, annealing, or quenching and tempering, depending on the material and performance requirements.
6. Quality Inspection: Forged components are subjected to rigorous quality control, including the detection of defects such as cracks, inclusions, and dimensional deviations. Advanced non-destructive testing methods, such as ultrasonic testing, magnetic particle inspection, and radiographic inspection, are employed to ensure component integrity.
7. Finishing Operations: To achieve the requisite surface finish and tolerances, the forged parts may undergo additional finishing processes, including machining, grinding, or polishing, tailored to the specific application's demands.
8. Assembly Integration: If the forged part is destined to be a component of a larger assembly, it is forwarded to the assembly line for integration with other components, completing the manufacturing sequence.
Close Die Forging stands out as an efficient and material-conserving process, capable of producing complex, high-strength components in a single operation. This process minimizes the need for subsequent machining and reduces material waste, making it particularly valuable in sectors such as aerospace, automotive, and heavy machinery, where the demand for high-strength, lightweight components is paramount.
▲Steel Die Forging