The advantages of cold forging mainly include the following:
Material Strengthening and Performance Improvement
The cold forging process refines the metal grain size and increases dislocation density, significantly improving the material’s mechanical properties. For example, the strength and hardness of cold-forged parts are approximately 30%-50% higher than those of the original material, with tensile strength exceeding 1000 MPa.
Dimensional Accuracy and Surface Quality
Cold forging is performed at room temperature, eliminating the effects of thermal expansion. Die precision is easily controlled, and part dimensional tolerances are tight (typically within ±0.005 mm). The surface is free of oxide scale and has a low roughness (Ra ≤ 0.8 μm), allowing it to be used directly as a finished product.
High Material Utilization
Cold forging utilizes a near-net-shape process, reducing cutting allowances and achieving material utilization rates of 85%-99%. For example, the material utilization rate of cold-forged bolts reaches 99%, compared to only 40% in traditional cutting.
High Production Efficiency
Cold forging is 25-30 times more efficient than cutting. For example, multi-station cold heading machines enable simultaneous processing of multiple steps, reducing equipment usage and labor costs.
Wide Application
Compatible with materials such as aluminum alloys, copper alloys, low-carbon steel, and medium-carbon steel, they are widely used in the automotive, machinery, electronics, aerospace, and other fields, such as manufacturing high-strength bolts, gears, bearing rings, and other precision components.
Of course, if you require large quantities of custom forged parts, you can partner with Mulan Metal. With 12 years of experience in metal forging production and processing and comprehensive certifications, Mulan Metal has helped clients in over 30 countries complete various custom forging parts and has received widespread recognition. We look forward to your consultation and cooperation.
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