You Will Never Believe Laser Technology Could be So Useful
Table of Contents Beginning: The Development and Current Status of the Laser Industry The laser industry has found wide acceptance across different industries since the
Working with metals feels both empowering and exciting. Welders transform metals into products and shapes they envision. In between the heat turning up and sparks flying, the welders practice and work tirelessly to acquire skills under the guidance and assistance of professionals in the industry.
Welding is fundamentally a process of fabrication that requires heat to attach two or multiple separate pieces. At present, professionals are utilizing laser welding, arc-based traditional welding, and spot-welding methods for operations. All the varieties of processes offer unique and special characteristics that render them appropriate for various cases. For instance, traditional welding can accommodate workpiece fit-up with less precision. Whereas, laser welding offers a low risk of distortion (thermal) and greater speed for processing.
This article will correctly summarize every detail about laser welders, their application, and welding techniques.
So, what is laser welding used for?
Laser spot or laser welding is a type of non-contact process that utilizes a laser to produce weld spots to join or attach metals. The laser is made to focus on the substrate, it absorbs the light and then melts the metal. This liquid metal flows and solidifies and then creates a small weld spot.
This complete process will occur within milliseconds. If the customer needs high speed for processing, multi-layer joints, or complex geometrics for welding, laser welding will offer a diverse range of applications and unique solutions. It might also get repeated completely depending on the thickness of the material and the required strength of the bond.
How does fiber laser welding work? Laser welding is always an automated process. The optical fibers (fiber laser welding) deliver beams from the diode, YAG, disk lasers, and fiber. It is easily and remotely manipulated with the help of robotic multi-axis delivery systems that result in a manufacturing process that is geometrically flexible.
The advantages or benefits are related to the phenomenon of creating a keyhole with laser welding. The keyhole allows the input of heat through the whole thickness of the materials and not only the topmost surface. The main benefits are listed below:
Following are the areas of differences in both the type of welding:
Firstly, we need to choose between the two main broad types of laser welder that are usually equipped with the welding machine: continuous laser and pulsed laser. Your choice of any one of these laser types will totally depend on the material’s thickness that you need to weld.
Continuous lasers:
Pulsed lasers:
There are 3 different types of welding sources that are, Nd YAG laser, Diode fiber laser, and CO2 laser. You can choose the welding source depending upon the laser type (continuous or pulsed).
1. Diode Fiber lasers:
2. CO2 lasers:
3. Nd YAG lasers:
In the demand for sheet cutting and sheet metal welding (0.05~0.3mm), or dissimilar metal sheet welding (such as aluminum copper), the JPT M7 series laser enjoys the most reliable performance. M7 series laser refers to a high-power optical fiber laser that adopts direct electrically modulated semiconductor laser as the seed resource (MOPA) plan; it is possessed of perfect laser features and excellent pulse-shape control ability.
When it comes to sheet metal of more than 0.3 mm, the JPT CW series laser performs better work. The CW series laser is a diode-laser-pumped continuous wave fiber laser that emits a continuous laser beam. CW laser offers higher output power therefore recommended for thicker metals.
MOPA optical fiber laser enjoys separate and controllable pulse frequency and width. By adjusting and coordinating these two parameters, it is able to realize constant high peak power output.
The stability of the connection is often required in precision welding. At the same time, we need to make adjustments to the welding position according to the actual condition.
JPT QCW (Quasi Continuous Wave) laser meets an optimized combination of light, equipment, electricity, and software; it uses a control interface and JPT standard software to realize real-time monitor and alarm to the laser status; besides, it is able to collect data and record the operations. The laser is designed with air cooling, heat dissipation, and an upper frame box and enjoys the benefits of high electro-optical conversion efficiency, low energy consumption, maintenance-free, flexible and electrically conductive. It is the ideal laser welder for precision welding and other applications.
These applications require lasers with high-energy output and are able to make adjustments under the continuous or modulated model.
JPT CW (Continuous Wave) Laser Series is recommended in these industries. It uses a control interface and JPT standard software to realize real-time monitoring and alarm the laser status; besides, it is able to collect data and record the operations.
The CW laser series is designed with air cooling, heat dissipation, upper frame box, and enjoys the benefits of high electro-optical conversion efficiency, low energy consumption, maintenance-free, flexible and electrically conductive.
Compared with traditional welding processes, it has high efficiency, small deformation, excellent sealing property, high seam strength, favorable appearance, high precision, and integration convenient advantages. It can be adopted to replace the traditional TIG welding process.
Table of Contents Beginning: The Development and Current Status of the Laser Industry The laser industry has found wide acceptance across different industries since the
As a tool, the laser has become a new favorite in the industrial age. Compared with other traditional processing methods, the laser has only a
Dr. Nadir Ali has obtained his Ph.D. in Physics from IIT Roorkee. His research centers on on-chip nonvolatile photonic devices, reconfigurable photonics, and silicon photonics. Additionally, he writes technical blogs and articles.
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