Different metal materials, such as stainless steel, carbon steel, aluminum alloy, etc., have different mechanical properties and bending characteristics, which affect the bending process and mold selection.
For example, stainless steel has higher strength and may require greater pressure and more wear-resistant molds when bending.
2. Bending angle:
Precise bending angles are common requirements and may range from acute angles to obtuse angles.
For example, some parts require a 90-degree bend, while others may require a 30-degree or 120-degree bend.
3. Bending accuracy:
Includes angle accuracy and dimensional accuracy. Dimensional accuracy involves linear dimensions such as length and width after bending.
For example, when manufacturing the housing of a precision instrument, the requirements for bending accuracy are usually very high, and the error may need to be controlled within a very small range.
4. Bending radius:
Different bending radii may affect the stress distribution of the material and the appearance and performance of the final product.
Smaller bending radius is suitable for some occasions with high strength requirements but low appearance requirements, while larger bending radius is often used for products with smooth appearance requirements.
5. Batch production capacity:
For large-scale production enterprises, bending machines need to have efficient batch production capabilities to meet the requirements of production schedule and cost control.
Like the automobile manufacturing industry, which requires a large number of parts of the same specifications, bending machines must be able to produce continuously quickly and stably.
6. Complex shape bending:
It can achieve bending of various complex shapes, such as U-shaped, Z-shaped, L-shaped, etc., and ensure the accuracy and consistency of the shape.
For example, in furniture manufacturing, it is often necessary to bend metal parts in complex shapes to meet design requirements.
7. Surface quality:
During the bending process, it is necessary to ensure that the surface of the material is not damaged, without scratches, indentations and other defects.
This is crucial for products with high appearance requirements, such as high-end electrical appliance housings.
II. Machine performance
1. Bending pressure:
·This is one of the key performance indicators of the bending machine, which determines the thickness and strength of the material it can bend.
·For example, large bending machines usually have higher bending pressures and can handle heavy steel plates; while small bending machines are suitable for thinner metal sheets.
2. Accuracy and repeatability:
·Accuracy refers to the degree of closeness of the bending angle, size, etc. to the set value.
·Repeatability refers to the ability of the machine to maintain the same accuracy when repeating the same bending operation many times.
·High-precision bending machines can ensure that each bent product meets strict quality standards. For example, in the aerospace field, the precision requirements of parts are extremely high, and the bending machine needs to have excellent precision and repeatability.
3. Speed:
·Includes fast forward speed, working speed and return speed.
·Fast speed can improve production efficiency, but it must also be based on ensuring accuracy.
·For mass production companies, the fast working speed of the bending machine can greatly shorten the production cycle and reduce costs.
4. Table length and opening height:
·The length of the table determines the maximum length of the plate that can be processed.
·The opening height affects the thickness of the plate that can be accommodated and the installation space of the mold.
·For example, processing large metal structures may require a longer workbench and a larger opening height.
5. Mold compatibility:
·It can adapt to a variety of different types and specifications of bending molds to meet different bending needs.
·Good mold compatibility can improve the versatility and flexibility of the bending machine.
6. Control system:
·Advanced control systems can achieve precise parameter setting, program editing and fault diagnosis.
·For example, the control system of a CNC bending machine can realize bending programming of complex shapes and improve the degree of automation of processing.
7. Stability and reliability:
·Maintain stable performance during long-term operation and reduce the probability of failure.
·This is very important for enterprises with continuous production to avoid production interruptions due to machine failure.
8. Energy-saving performance:
·Efficient energy utilization can reduce operating costs and meet the energy-saving and environmental protection requirements of modern industry.
In short, the machine performance of the bending machine directly affects the quality, efficiency and cost of the processed products. When choosing a bending machine, these performance indicators need to be comprehensively considered according to specific production needs.
III. Control system
1. Stability and ease of use of CNC system: A good CNC system can improve the accuracy and efficiency of bending and is easy to operate.
2. Programming function: Whether it has a simple and easy-to-understand programming method to adapt to different bending needs.
IV. Die configuration
The die configuration of the bending machine is crucial to achieve high-quality and diversified bending processing, mainly including the following common types:
1. Upper die:
Straight knife upper die: suitable for simple straight line bending.
Machete upper die: used for bending with a certain arc.
Gooseneck upper die: can achieve a larger angle of bending in a limited space.
For example, when processing the side panel of the chassis, a straight knife upper die may be used for right-angle bending of the edge; and for some parts with arc requirements, a machete upper die will be selected.
2. Lower die:
V-shaped lower die: the most common type, different V-mouth widths are suitable for plates of different thicknesses.
Double V-shaped lower die: can reduce material stretching during bending and improve bending accuracy.
For example, for thinner plates, a lower die with a smaller V-mouth width is usually selected; while for thicker plates, a lower die with a larger V-mouth width is required to ensure the bending effect.
3. Special molds:
Flattening mold: used to flatten the bent part.
Step mold: used to achieve step-type bending of different heights.
For example, in some metal products, it is necessary to bend first, and then use a flattening mold to flatten some areas to achieve specific shape requirements.
4. Mold material:
Usually tool steel, cemented carbide, etc.
Tool steel molds have a lower cost and are suitable for general processing; cemented carbide molds have higher wear resistance and hardness, and are suitable for large-scale, high-strength production.
The configuration of the mold needs to be determined according to factors such as the model of the bending machine, the nature and thickness of the processing material, the complexity of the bending shape, and the production batch. Reasonable mold configuration can not only improve processing efficiency and quality, but also reduce mold loss and production costs.
For example, a company that mainly produces small metal parts may be equipped with straight knife upper dies and V-shaped lower dies of various specifications to meet the straight bending needs of parts of different sizes; while a company that produces large metal structural parts may need a large gooseneck upper die and double V-shaped lower die to handle the bending of thick plates and complex shapes.
V. After-sales service
The after-sales of bending machines usually include the following aspects:
1. Installation and commissioning: A professional after-sales team is responsible for transporting the bending machine to the designated location and installing and commissioning it to ensure that the machine can operate normally, including adjusting the level, checking electrical connections, calibrating parameters, etc.
2. Training service: Provide training for operators to familiarize them with the operation methods, daily maintenance points and safety precautions of the machine, which may include on-site demonstrations and practical operation instructions.
3. Repair and maintenance: Regularly visit to check the operation status of the machine and perform maintenance work, such as cleaning, lubrication, tightening, etc.; when the machine fails, respond promptly and arrange maintenance personnel to repair it.
4. Spare parts supply: Ensure the timely supply of various vulnerable spare parts to reduce machine downtime.
5. Technical support: Answer technical questions encountered by users during use at any time and provide solutions, such as guiding new bending processes by phone or remote assistance.
6. Warranty service: During the specified warranty period, the quality problems of the machine are responsible for free repair or replacement.
There may be differences in after-sales service for bending machines of different brands. Some well-known brands usually have a more complete after-sales service system and a more professional after-sales team to ensure the user experience and production needs. When choosing a bending machine, in addition to considering the brand's popularity and product quality, it is also very important to understand the specific content and quality of its after-sales service.
For example, Anhui Puleifa Intelligent Equipment Co., Ltd. is one of the largest laser application intelligent equipment R&D and manufacturing manufacturers in the south. The company's bending machine after-sales service includes: providing customers with 24-hour on-site maintenance and repair services; it has hundreds of service engineers across the country; its equipment is exported to many countries and regions, providing customers with timely installation, commissioning, training, maintenance, consultation and other full-service.
It is recommended that before purchasing a bending machine, you should learn in detail about the after-sales policies and service networks of each brand, as well as other users' evaluations of the brand's after-sales service, so as to choose products and services that better meet your needs. At the same time, in the process of using the bending machine, operating in accordance with the operating procedures and doing daily maintenance can also help reduce the occurrence of failures and extend the service life of the machine.
In-depth search
VI price and budget
1. Compare the prices of different brands and models to ensure that you choose a bending machine with performance that meets your needs within the budget.
2. Consider long-term use costs, including maintenance, energy consumption, etc.
The price of a bending machine varies depending on many factors, including brand, model, specifications, performance, configuration, etc.
Generally speaking, the price of a small, simple bending machine may range from tens of thousands to hundreds of thousands of yuan. This type of bending machine is usually suitable for small processing plants or personal studios, and the processing capacity is relatively limited.
The price of a medium-sized bending machine is usually between tens of thousands and hundreds of thousands of yuan. They are able to handle thicker plates and more complex bending tasks, and are suitable for medium-sized production needs.
The price of a large, high-precision, high-performance bending machine may be as high as several million yuan or even tens of millions of yuan. These bending machines usually have advanced control systems, strong bending pressure and high-precision processing capabilities, and are suitable for large-scale industrial production and fields with extremely high precision requirements.
When making a budget, in addition to considering the price of the bending machine itself, you also need to consider the following costs:
1. Mold costs: The prices of molds of different types and specifications are different, and multiple sets of molds may be required according to processing requirements.
2. Installation and commissioning costs: If the manufacturer or professionals are required to install and commission, additional costs may be incurred.
3. Training costs: It may cost a certain amount to provide training for operators.
4. Maintenance costs: Including regular maintenance, replacement of wearing parts, etc.
5. Transportation costs: Especially for large bending machines, transportation costs may be high.
For example, an ordinary medium-sized CNC bending machine of about 100 tons may cost about 300,000 yuan, plus a set of commonly used molds (about 20,000 yuan), installation and commissioning costs (about 10,000 yuan) and operator training costs (about 5,000 yuan), the overall budget may be around 350,000 yuan.
But if it is a high-precision, large-scale 500-ton CNC bending machine, the price may be more than 5 million yuan, plus molds (may require more than 100,000 yuan), installation and commissioning (more than 50,000 yuan), training (more than 20,000 yuan) and other costs, the budget may exceed 5.2 million yuan.
It should be noted that the above prices are only for reference, and the actual prices will vary due to market fluctuations and specific configuration requirements. Before purchasing a bending machine, it is recommended that you fully understand your own production needs, communicate and compare with multiple suppliers to formulate a reasonable budget and choose the most suitable equipment.
VII. Conclusion
In short, when purchasing a bending machine, you need to consider the above factors comprehensively and make a wise choice based on your actual production needs and budget.
Anhui ZYMT CNC Machine Tool Co., Ltd. has more than 20 years of experience in bending machine manufacturing. It is a reliable company known for its bending machines. Our bending machines are of excellent quality and reasonable price, which will be a good choice for you! If you are interested in bending machines, you can browse our products and contact us at any time. We will provide excellent and timely service to answer your questions.
