Core Configuration and Technical Features of Cold Forging Hydraulic Press for Aluminum Radiators

To achieve the process goal of forming radiator substrates or fins with thin walls, high ribs, and complex curved surfaces in one or a few passes, a cold forging hydraulic press for aluminum radiators must possess the following characteristics. Now, let's take a look at the sharing from Jianlong Hydraulic Technology:

1. Ultra-high machine rigidity and guiding precision

1.1 Structure: An integral prestressed frame structure must be adopted. Pre-tensioning with high-strength tie rods ensures minimal deformation of the frame when subjected to huge eccentric loads (uneven stress distribution when forging complex parts).

1.2 Guiding: Utilizing four-corner, eight-sided adjustable rectangular guide rails or heavy-duty roller guide rails. The guide clearance can be adjusted to near zero, ensuring that the slider maintains absolute parallelism with the worktable even under pressures of hundreds or even thousands of tons (parallelism is typically required to be ≤0.025mm/m). This is the lifeline for preventing one-sided die wear and ensuring consistent fin height.

2. Precision and Flexible Hydraulic and Control System (The Core of the Core)

2.1 Drive Scheme: Servo hydraulic systems are the absolute mainstream and optimal choice. They use a servo motor to drive a fixed-displacement pump, achieving precise closed-loop control of flow and pressure.

2.2 Core Control Capabilities:

2.2.1 Multi-Segment Speed Control: Rapid advance during idle stroke → Slow mold closing → Multi-stage variable speed forging → Pressure holding → Rapid return. The entire stroke curve is programmable, allowing material to flow and fill the mold in the optimal way.

2.2.2 Multi-Segment Pressure Control: Different pressures can be set for different forming stages, especially requiring stable and precise high pressure during final finishing and shaping.

2.2.3 Position Closed-Loop Control: Employing a high-precision magnetic scale, the repeatability of the bottom dead center position reaches ±0.01mm, ensuring absolutely consistent thickness for every product.

3. Special Systems for Cold Forging Processes

3.1 Tonnage Monitoring and Protection System: Real-time monitoring of actual forging force to prevent overload damage to the mold and machine.

3.2 Rapid Pressure Relief and Shock Absorption System: Cold forging involves significant instantaneous impact, requiring specialized hydraulic circuits and buffer devices for smooth pressure relief, protecting equipment and extending die life.

3.3 Die Lubrication and Cooling System: Although the workpiece is not heated, the intense deformation generates heat. Forced cooling and precision jet lubrication (using a special cold forging lubricant) of the die are crucial for success.

4. Highly Automated Integration

4.1 Feeding: Typically paired with a walking beam robot or servo feeder for precise transfer of billets (pre-formed aluminum ingots or blocks).

4.2 Unloading and Inspection: After forging, the workpiece is ejected by an ejector device and removed by a robot. An integrated vision system can be used for online dimensional inspection.

4.3 Process Monitoring: The pressure-displacement curves of each stroke are recorded and analyzed for quality traceability and process optimization.

The cold forging hydraulic press for aluminum radiators embodies the "technological barrier" in high-end manufacturing. The investment is not merely in purchasing steel machinery, but also in acquiring a precision forming capability capable of continuously producing high-value-added products. For more information/advice on cold forging hydraulic presses for aluminum radiators, or to purchase other high-quality hydraulic presses, please contact us (or scan the WhatsApp QR code below). Jianlong Hydraulic Technology will provide you with personalized and customized professional solutions and is dedicated to serving you.