Description
What is a Robot Laser Welding Machine?
A welding robot is an automated welding device used for welding operations. As the name implies, a welding robot can achieve intelligent welding of weldments without human involvement. Its innovative control system is equivalent to the response of a skilled welder and can be flexibly applied to weldments of different specifications. A robotic laser welding machine uses a laser as a welding heat source. The robotic laser welding machine can irradiate a high-energy-density laser beam on two parts of the material, causing local heating, melting, cooling, and solidifying to form a whole.
Working Principle and Process of Robot Laser Welding Machine
1. Laser generation:
○ The core component of the laser welding robot system is the laser source, which can generate and transmit a laser beam with extremely high power density.
2. Optical transmission and focusing:
○ The generated laser beam is transmitted and collimated through a series of optical elements (such as reflectors and lenses) and finally focused to a tiny spot through a precision focusing head, forming an extremely high energy density at the focal position.
3. Workpiece positioning and pretreatment:
○ Before welding, the industrial robot accurately positions the workpiece according to the preset program to ensure the weld is in the best position. At the same time, the workpiece surface needs to be cleaned and adequately preheated to remove impurities and improve welding quality.
4. Welding process:
○ When the laser beam is focused on the part to be welded, the workpiece material melts rapidly due to the local high temperature. As the laser beam moves along the predetermined path, the molten metal forms a continuous or spot weld.
○ In some cases, shielding gases (such as argon or helium) may also prevent oxidation and promote uniform cooling of the molten pool.
5. Real-time monitoring and feedback:
○ Advanced laser welding robot systems are equipped with weld tracking devices and visual sensors, which can monitor the welding status in real-time and automatically adjust the laser focal length and welding trajectory to adapt to changes in workpiece size and compensate for mechanical errors.
6. Cooling and post-processing:
○ After welding, stop laser irradiation; the molten pool naturally cools and solidifies to form a strong welded joint. Sometimes, subsequent stress relief treatment and post-weld inspection are required.
7. Cycle and optimization:
○ The robot control system continuously records and analyzes welding data, improving welding efficiency and product quality by continuously learning and optimizing process parameters.
Product Parameters
| Product Name | Automatic Robot Arm Laser Welding Machine | |||||
| Laser Power | 1000W 1500W 2000W 3000W 4000W optional | |||||
| Laser Source | Raycus IPG JPT MAX optional | |||||
| Robot Arm | Yaskawa ABB KUKA…… | |||||
| Laser Wavelength | 1070nm | |||||
| Pulse Width | 0.5-15ms | |||||
| Pulse Frequency | ≤100Hz | |||||
| Spot adjusting range | 0.1-3mm | |||||
| Repeating precision | ±0.01mm | |||||
| Cooling System | Water Cooling | |||||
| Voltage | 380V/3-Phase/50Hz/40A/60A | |||||
Robot Laser Welding Machine Welding Advantages
1. High efficiency: The laser welding robot adopts non-contact welding, which can achieve high-speed and high-quality welding, improve production efficiency, and increase product qualification rates. The laser welding robot can cooperate with the computer numerical control system or manipulator and robot to realize automated and intelligent welding production.
2. High precision: The laser welding robot uses a laser as the welding heat source. The laser energy is highly concentrated, the heat-affected zone is small, the thermal deformation is small, and precision processing can be achieved. The laser welding robot can automatically identify and track the weld according to shape and position to ensure alignment and repeat positioning accuracy.
3. High quality: The laser welding robot can weld metals with high melting points, refractory and difficult to weld, such as titanium and aluminium alloys, and can achieve welding between certain dissimilar materials. The laser welding robot has minor welding points, narrow welds, a neat and beautiful appearance, and no or only simple post-processing is required. The weld structure of the laser welding robot is uniform, with few pores and defects, which can reduce and optimize the parent material’s impurities and improve the weld’s mechanical strength, corrosion resistance and electromagnetic properties.
4. High flexibility: The laser welding robot is suitable for large-scale space welding. It is intelligently operated, flexible, and reliable. It can be linked by six axes and welded in any space, not limited to plane welding. The laser welding robot can customize fixtures according to production needs to adapt to workpieces of different specifications and shapes.
The difference between robot laser welding and ordinary welding
1. Different heat sources. Laser welding robots use high-energy-density laser beams, which can heat the surface of the workpiece in a narrow area, melt or vaporize it, and form welds or incisions. Ordinary welding uses heat sources such as arcs, flames, and resistors, which must contact the workpiece and produce much smoke, noise, radiation and other pollutants.
2. Different precision. Laser welding robots can achieve small, precise, and complex welding requirements, control the weld’s width, depth, and shape, reduce deformation and defects, and improve product performance and reliability. Ordinary welding is affected by the operator’s technical level and environmental conditions and is prone to unreliable, unsightly, and uneven welding points.
3. Different speeds. Laser welding robots can achieve high-speed, continuous, and automatic welding operations, improve production efficiency and quality, and reduce costs and energy consumption. Ordinary welding requires manual operation and is slow, inefficient, and expensive.
4. Different flexibility. Laser welding robots can adapt to welding different materials, structures, and shapes without direct contact with the workpiece. They can weld at long distances or inaccessible locations and achieve multi-dimensional and multi-directional welding. Ordinary welding requires adjusting and replacing equipment according to different workpieces and has poor flexibility.
Robotic Laser Welding Machine Application
1. Electronics industry. Laser welding robots can be used to weld parts of electronic devices such as mobile phones, laptops, cameras, etc., to achieve precise, tiny, and complex welding requirements and improve product performance and reliability.
2. Metallurgical industry. Laser welding robots can repair and remanufacture metal parts such as rollers and moulds, extending their service life and reducing replacement costs. They can also directly manufacture complex metal structures.
3. Medical industry. Laser welding robots can be used to weld medical devices such as heart stents, gastroscopic biopsy forceps, earwax protectors, balloon catheters, etc., to improve weld strength and sealing and meet high cleanliness and precision requirements.
DAG at your service
Pre-sales service
• Free sample welding service:
For free sample welding/testing, please send us your CAD file (PLT, AI) or mail us your workpiece; we will weld in the factory and make a video showing the welding process and results or send you a sample to check the cutting quality.
• Drive solution design:
According to the customer’s product processing requirements, we can design unique solutions for customers to support higher manufacturing efficiency and better processing quality.
• Customized machine design:
We can modify our machines according to the customer’s application to achieve customer convenience and high production efficiency.
After-sales service
• As a professional CNC laser manufacturer and supplier, DAG will provide English training videos and user manuals for the installation, operation, maintenance and troubleshooting of robot fiber laser welding machines and provide you with English training videos and user manuals by email, phone, mobile phone, etc. when you encounter installation, operation or adjustment problems.
• You can come to our factory for training. We will provide professional guidance and direct face-to-face practical training. We have assembly equipment, various tools and testing equipment here. Training time: 3~5 days (recommended).
• Our engineers will visit your local site for on-site guidance and training services. We must assist with visa processing and prepay travel and accommodation expenses before deployment and during service.
Warranty
• Three-year warranty for the whole machine, 18-month warranty for the laser, 12-month warranty for the chiller, no warranty for the lens/mirror/nozzle.
• Long-term lifetime maintenance: The after-sales department will provide 24/7 English online support.
• During the warranty period, we are responsible for providing free accessories, except for artificial damage.
• After the warranty period, the buyer is only responsible for the actual repair costs.
Frequently Asked Questions
If you need a free quote and detailed solution, please answer the following questions and let us know by email so that we can recommend the most suitable machine and quote you an affordable price.
• Do you need to weld metal plates, pipes, or both?
• If you need to weld pipes, what is the length, diameter, and maximum thickness of your pipes?
• What is the maximum working area required for welding metal plates?
• How much do you plan to budget for the custom machine?
• What will the processed material be used for?
• Which seaport is closest to you?
• Do you have experience with robotic laser welding?
• What is your online chat method, such as Skype, WhatsApp or WeChat
• Are you an end user or a dealer?
If you have any questions, please contact us; our sales managers are online 24/7 to receive your questions or requests and provide solutions within 12 hours!
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