As an important process for metal forming, hot forging occupies a pivotal position in the manufacturing industry. Compared with cold forging and warm forging, hot forging improves the plasticity of metals through high-temperature heating, making them easier to deform, while reducing internal stress and improving the overall performance of products. As an industry-leading forging manufacturer, HULK Metal provides high-performance forging products to customers around the world with advanced equipment, strict quality control, and strong customization capabilities. This article will explore the hot forging process, HULK Metal's production process, core advantages and its application in various industries.

What is hot forging?

Definition of hot forging

Hot forging refers to a manufacturing process in which metal materials are plastically deformed above the recrystallization temperature to obtain the desired shape and mechanical properties. Typically, the hot forging temperature range of steel is between 950°C - 1250°C.

Comparison between hot forging and other processes

Cold forging: It is carried out at room temperature or low temperature, suitable for small, high-precision parts, but it has severe work hardening.

Warm forging: It is carried out between 600°C - 900°C, taking into account the high precision of cold forging and the low deformation resistance of hot forging.

Hot forging: It has good plasticity is suitable for large-size, high-strength parts, and has a uniform structure, which is suitable for mass production.

Principles of hot forging

Metal recrystallization: Through high-temperature processing, internal defects are eliminated, and the toughness and fatigue resistance of materials are improved.

Grain refinement: Appropriate hot forging deformation can optimize the structure and improve the wear resistance and impact resistance of parts.

HULK Metal hot forging production process

Raw material preparation

HULK Metal selects high-strength carbon steel, alloy steel, stainless steel, and other materials to ensure that the finished products have excellent mechanical properties. The raw materials are strictly tested, such as composition analysis, ultrasonic flaw detection, etc., to ensure quality.

Heating process

Use advanced induction heating furnaces and gas heating furnaces to heat evenly and reduce energy consumption.

Strictly control the heating temperature to prevent the material from producing coarse grains due to overheating or affecting plasticity due to insufficient temperature.

Anti-oxidation protection: Use protective atmosphere or coating technology to reduce oxidation decarburization and improve surface quality.

Hot die forging process

HULK Metal uses a variety of hot forging methods, such as:

Free forging: used for large-size forgings, can be quickly formed, and has strong adaptability.

Open die forging: suitable for medium-sized products, low production cost, and adaptable to different shape requirements.

Closed die forging: high precision, high strength, suitable for complex shape parts.

Precision die forging: reduce subsequent processing and improve material utilization.

Subsequent processing process

Heat treatment (quenching, tempering, normalizing) optimizes mechanical properties.

Machining (CNC precision machining) ensures dimensional accuracy.

Surface treatment (sandblasting, galvanizing) improves corrosion resistance.

Quality Control

HULK Metal has passed the ISO 9001 quality management system and strictly inspects each link, including:

·Non-destructive testing (magnetic powder, ultrasonic flaw detection) to ensure that there are no internal cracks.

·Dimensional inspection (CMM three-coordinate measuring machine) to ensure that the accuracy meets the standard.

·Material performance testing (hardness, tensile, impact testing) to ensure that the product meets the standard.

Advantages of HULK Metal hot forging

Advanced production equipment

HULK Metal has 3-axis, 4-axis, and 5-axis milling centers and CNC lathes and turning centers, combined with fully automatic forging equipment to improve production efficiency and reduce costs.

Excellent product performance

High strength: optimize grain structure and improve tensile strength.

Strong wear resistance: uniform organization reduces wear and increases service life.

Excellent fatigue resistance: enhance the impact resistance of parts.

Flexible customization capabilities

HULK Metal provides OEM services, supporting small to large-batch production to meet the needs of various industries.

Strict quality management system

All products have passed international certifications such as CE, TUV, SGS, etc., ensuring that global customers obtain high-standard forgings.

Industry applications of HULK Metal hot forging products

Mining machinery and heavy equipment

High-strength forgings for equipment such as excavators and crushers, bucket teeth, track pins, bearing seats, etc.

Construction and infrastructure

Provide precast concrete anchors, lifting accessories, rigging forgings, and other products to ensure construction safety.

Automobile and rail transportation

Produce key parts such as high-strength crankshafts, knuckles, connecting rods, etc. to improve vehicle safety and reliability.

Energy and marine engineering

Produce high-pressure pipe fittings, flanges, valve bodies, etc., suitable for the oil and gas industry and offshore platform construction.

HULK Metal's sustainable development and innovation capabilities

Green manufacturing and energy saving and consumption reduction

Use energy-saving and environmentally friendly equipment to reduce carbon emissions and improve energy utilization.

Recycle forging waste, reduce resource waste, and meet the requirements of sustainable development.

Technology research and development and continuous innovation

Independently develop high-precision forging processes to improve product performance.

Cooperate with scientific research institutions to promote forging technology innovation.

Global supply chain and efficient logistics

20 years of international logistics experience to ensure fast product delivery.

Professional export packaging to ensure transportation safety.

Choose HULK Metal to achieve excellent quality

HULK Metal has become a trusted forging solution provider for global customers with advanced hot forging technology, excellent quality management, wide industry applications, and sustainable development concepts. Whether it is mining machinery, construction, automobile, energy, or other industries, we can provide high-performance forgings to meet the most stringent needs. If you have any hot forging needs, please contact us, HULK Metal will serve you wholeheartedly!