In the iterative process of industrial welding technology, laser welding has become the mainstream choice in the field of metal processing with the core advantages of high precision and high efficiency. Among them, the 2000W power level laser automatic welding machine achieves a balance between efficiency and scope of application, and is widely used in many types of metal material processing scenarios, and the “welding depth”, as the key indicator affecting the welding quality and applicable scenarios, has always been the focus of attention of the industry and enterprises.
Ⅰ. Impact dimension：
The welding depth of the 2000W continuous Fiber Laser Welding machine is not a fixed value, but is affected by the material properties and process parameters. Its theoretical application range is between 0.5-8mm, and the actual welding needs to be flexibly adjusted in accordance with specific needs.：
1.Material properties：
There are significant differences in the absorption rate and heat conductivity of different metal materials on the laser, which directly affect the upper limit of the welding depth.From the perspective of industry practice：
Carbon steel/stainless steel: This kind of material has a high absorption rate of 1064nm mainstream industrial lasers and moderate heat conductivity. Under conventional technology, a welding depth of 3-8mm can be achieved; If it is protected by an inert gas (such as argon), it can not only reduce the oxidation of the weld, but also increase the welding depth by 10%-15% to meet the strength requirements of most structural parts.
Aluminum alloy: The reflectance of aluminum alloy to the laser is over 80%, and the heat conduction speed is fast, which can easily cause energy loss, and it is difficult for traditional equipment to achieve stable melting depth. At present, there is equipment to improve the focusing system, which can stabilize the welding depth at 1.5-5mm by increasing the laser energy concentration, and at the same time control the deformation after welding within 0.1mm, which is suitable for precision machining scenarios.
Copper: The high reflectance of copper (over 90% at room temperature) is the main difficulty of laser welding. Equipment using “pulse-continuous dual-mode switching” technology can reduce the reflectance through pre-heating, and then use a continuous laser to achieve a welding depth of 1-4mm, covering the precision welding needs of new energy, electronics and other fields.
2. Process parameters：
By adjusting the focus position, welding speed, defocus amount and other process parameters, the welding depth can be flexibly controlled on the basis of 2000W power, taking into account efficiency and quality.：
Focus position: Set the laser focus at 0.5-1mm below the surface of the material, so that the energy is easier to concentrate inside the material. Compared with the surface focus, the welding depth can be increased by 20%-30%. For example, when welding thick carbon steel, a single-channel penetration of 8mm can be achieved, reducing the secondary welding link.
Welding speed: Under the premise of constant energy, the welding speed is negatively correlated with the depth.Equipment that supports stepless speed regulation of 0.1-10m/min can set a welding speed of 3-5m/min for thin steel plates (1-2mm), which not only guarantees the melting depth requirement of 2mm, but also improves production efficiency.
Defocus amount: Adjusting the defocus amount according to the thickness of the material (usually in the range of -5mm to +5mm) is the key to avoid burn-through or non-penetration.Equipment with autofocus function can detect the thickness of the material in real time and adjust the amount of defocus. For example, when welding 3mm stainless steel, set the amount of +1mm defocus, which can achieve full melt depth and control the width of the weld at 0.8-1.2mm.
Ⅱ. Industry service and procurement reference：
For enterprises, choosing a 2000W continuous Fiber Laser Welding machine requires comprehensive consideration of the in-depth control capabilities, stability and follow-up services of the equipment. As a laser equipment service provider with independent intellectual property rights, Eagle Laser not only provides welding equipment adapted to multiple materials and thicknesses, but also provides customized process solutions according to enterprise needs, and provides one-stop services such as free sample welding testing, installation and commissioning, and personnel training to help enterprises quickly implement laser welding technology.
If you need to learn more about the welding depth performance of the 2000W Continuous Fiber Laser Welding Machine in specific materials, or to obtain customized solutions, you can contact our Eagle Laser technical team for more professional consultation and support.