Screw Press Forging Machine Process and Type Introduction
2020-04-11 14:35:21Screw press is a kind of forging machine that can transform the rotating energy of flywheel into the work of the up and down movement of mould. Its earliest structure originated from the ancient printing machine. Because the rotating energy can bring great energy, but the rotating energy of the flywheel must pass through the screw device (screw rod and nut) to transfer the force to the die. Affected by the force and reaction force, the fuselage, screw, nut and other force sensitive parts are also affected by the closing force. Therefore, the screw press is particularly suitable for the machine with large energy forming, but the force is limited .
Advantages of screw press forging machine
- The noise is relatively small when striking. The electric screw press is generally used in the situation of large deformation and one-time forming, and will not produce instant impact force when forging, so the noise is very small, so it is an environmental protection product.
- It is suitable for forging aluminum alloy and other materials because of its moderate strike speed and easy forming of metal with poor plasticity.
- Wide forging range, suitable for die forging, upsetting, precision pressing, correction, trimming, bending and other forming processes. Because the stroke of slide block is not fixed, and the ejector is set, screw press forging machine is suitable for forging without flash and upsetting of long rod forgings, and also for extrusion and trimming processes.
- High security. Due to the moderate speed and convenient operation, the safety of workers is high.
- It is easy to realize forging automatic production line. In the forging process of electric screw press, it is not easy to have abnormal conditions such as die jumping, and the process is relatively stable, so it is easy to realize automation.
Disadvantages of screw press forging machine
The ability of the screw press forging press to bear eccentric load is poor, it is usually used in single groove die forging, and the blank making is generally carried out on other auxiliary equipment. When there are many complex forging processes, there are many equipment in the production line, and the investment in the whole line is large.
Comparison between forging hammer and screw press forging machine
Compared with forging hammer, screw press has more energy and less forging force, so it is not suitable for forging with complex shape and thin forgings. When it is hit, the fuselage is subject to closing force. Once it is overloaded, it is easy to crack the fuselage. The selection of screw press tonnage must be adapted to the characteristics.
|
Hitting Energy
(KJ)
|
Normal Force
(KN)
|
Stroke Frequency
(times/min)
|
|
| 630 ton electric screw forging press | 80 | 6300 | 20 |
| 25kj CNC closed die forging hammer | 25 | 10000 | 60 |
| 80KJ CNC closed die forging hammer | 80 | 31500 | 60 |
(h2)How many types of screw press forging machine?
In the development of screw press forging machine, there are four main transmission types: friction screw press, hydraulic screw press, clutch screw press and electric screw press.
Friction press
Friction press is the oldest screw press with simple structure and low price, but its transmission efficiency is low, the friction belt is easy to wear, and the forging energy is not easy to control accurately.
Hydraulic screw press
The hydraulic screw press is a kind of screw press forging machine which uses the hydraulic transmission to drive the flywheel to rotate and realize the up and down movement of the slider. The performance of hydraulic screw press is better than friction screw press, but the hydraulic system is complex, the maintenance technology level is high, and the price is much higher than friction press.
Clutch screw press
Launched in the late 1970s, also known as high-energy screw press. Its characteristic is that the screw drives the slider rapidly, the slider can output the rated energy value and reach the maximum forging force in a small stroke, and the forging frequency is high. But the structure of the machine is very complex. There are not only mechanical clutch transmission, but also hydraulic transmission for slide return.
Electric screw press
The electric screw press uses the motor to drive the flywheel directly, and the main structure is simpler than the friction press. Because of the great progress in power electronic technology in recent years, the electric screw press has been greatly developed and widely used in the world.
Anyang Electric screw press advantages
The electric screw press developed by Anyang Forging Press integrates the advantages of the electric screw press and avoids the disadvantages of the old structure through innovation and transformation.
- Improve the structure of the fuselage, improve the anti overload capacity of the fuselage, expand the use range of the electric screw press, and improve the reliability of the press.
- The long slider and long guide rail are used for guiding, which has high guiding accuracy and greatly improved anti eccentric load capacity.
- Anyang Forging Press designs turn-key automatic production line for customers according to their forging requirements.
- If you are interested in our electric screw press, please feel free to contact us at any time!
If you are interested in our electric screw press, please feel free to contact us at any time!
