○ Classification of Forging Methods
Forging methods are mainly divided into three types: hot forging, warm forging and cold forging. Hot forging is carried out above the recrystallization temperature of the metal material and is suitable for the manufacture of large and complex parts, such as automobile engine crankshafts and connecting rods. Warm forging is carried out under conditions slightly below the recrystallization temperature and is suitable for parts with higher requirements for material properties. Cold forging is carried out at room temperature and is mainly used to manufacture small and high-precision parts, such as gears and bolts.
○ Forging Process Flow
A typical forging process flow includes material preparation, heating, forging, cooling and subsequent processing. In the material preparation stage, it is necessary to select suitable metal materials and determine their chemical composition. The heating stage is to improve the plasticity of the material and reduce the resistance during forging. The forging stage is the core step, and the heated material is plastically deformed by a forging press. The cooling rate needs to be controlled during the cooling stage to prevent cracks in the material. Subsequent treatments include heat treatment, surface treatment, etc. to further improve the performance of the parts.
Forging equipment: Forging equipment mainly includes forging presses and dies. Forging presses include hydraulic presses, mechanical presses, and hammer forging machines, which are selected and used according to different forging requirements and material properties. Die design needs to consider the shape, size, and material flow characteristics of the parts to ensure uniform material distribution and precise shape during the forging process.
○ Advantages and Challenges of Forging
Forging can significantly improve the mechanical properties of materials and make automotive parts more durable. However, the forging process also faces challenges such as high cost, high energy consumption, and environmental pollution. Therefore, the automotive manufacturing industry is constantly exploring more efficient and environmentally friendly forging technologies and processes.
| Forging Type | Applicable Parts | Main Advantages | Main Challenges |
| Hot Forging | Engine crankshaft, connecting rod |
Improve material strength and toughness | High energy consumption, high cost |
| Warm Forging | High-strength gear | Optimize material properties | High equipment requirements |
| Cold Forging | Precision bolts, gears | High dimensional accuracy | Low production efficiency |
In short, hydraulic forging press is one of the indispensable processes equipment in automotive manufacturing. It provides automobiles with high-strength and high-performance parts by precisely controlling the plastic deformation of metals. With the advancement of technology and the improvement of environmental protection requirements, the forging process is also constantly developing and improving.
The growing significance of forging in a number of future industries is owed to technical innovations that have emerged in the last few years. Among them are hydraulic forging presses that EHF (efficient hydraulic forming) technology and the GOODSJACK/Delishi Hydraulic Forging Press with servo drive technology for reduced energy requirements and greater flexibility, precision and cost-effectiveness.
+86-769-8306-1993
E-mail
