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  • CNC FAQs
    • 1 The Risks Associated With Laser Welding And How To Mitigate Them

        Laser welding is a process that uses a high-energy laser beam to melt and join together metals or thermoplastics. It is a very precise and efficient welding method, but there are also some risks associated with it. Here are some of the most common risks associated with laser welding, and how to mitigate them:

        1. Fires and explosions. The high-energy beam used in laser welding can ignite temperature-sensitive materials nearby, causing fires or explosions. To prevent this, make sure the area around the workpiece is clear before beginning the weld and keep a fire extinguisher handy in case of emergency.

        2. Eye damage. Looking directly at the laser beam can cause permanent damage to the eyes, so always wear appropriate safety gear when welding. This includes protective eyewear and clothing that covers your skin.

        3. Burns and other injuries. Proper safety gear will also help protect you against burns and other injuries caused by accidental contact with the workpiece or the laser beam. Always take appropriate precautions to avoid these risks.

        4. Equipment damage. Laser welding equipment is expensive, and it can be damaged by misuse or careless handling. Always read the instructions carefully before using any laser welding equipment, and follow all safety precautions to avoid damage.

        5. Operational errors. Improper use of laser welding equipment can result in poor welds, damaged parts, or even injury. To avoid these risks, make sure you have adequate training and experience with laser welding before attempting to use this equipment on your own. If possible, consult a professional for guidance.

        Overall, there are many potential risks associated with laser welding, but by taking appropriate safety precautions and using the equipment carefully, you can mitigate these risks and enjoy the many benefits of this technology.

    • 2 How To Decide If Laser Welding Is The Right Choice For Your Business?

        There are a few things you’ll want to consider when deciding if laser welding is the right choice for your business. First, think about what materials you’ll be welding and their thicknesses. Laser welding works best on thin materials, so it might not be the right method for you if you’re planning on welding thick metals.

        Second, consider the type of welds you need to make. Laser welding can provide a very clean and accurate finish if you need to make precision welds or weld delicate parts. However, if you’re just looking to weld heavy-duty joints, another method might be more suitable.

        Finally, take into account the cost of investing in a laser welder. The initial price can be high, but the increased efficiency and productivity can save you money in the long run. If you’re not sure if laser welding is right for your business, talk to a professional to get their advice.

    • 3 The Benefits Of Laser Welding For Businesses

        The many benefits of laser welding have made it a popular choice for industrial applications. Laser welding is five to ten times faster than traditional welding methods, and it is more energy-efficient. Additionally, laser welds are very strong and have low levels of distortion.

        Laser welding offers a faster alternative to TIG and MIG for some applications. With TIG, the heat is distributed over a wider area, which can cause the metal to become less malleable and more likely to warp. Laser welding, on the other hand, delivers heat directly to the area where it is needed, making it ideal for smaller projects and delicate materials. Laser welding is also better than MIG because the heat from the laser beam is focused and more intense than the heat from an arc. This allows for a higher welding speed with less distortion of the metal. Additionally, there is no spatter created by laser welding, so cleanup is much easier.

        Laser welders are very precise, making them ideal for joining together small or delicate components. The wavelength of the laser beam can be adjusted to produce virtually any width of weld bead, from very fine to quite large. This flexibility means that laser welding can be used for both detailed work and more substantial projects.

    • 4 What Is Laser Welding And How Does It Work?

        Laser welding is a process in which two pieces of metal are joined together by using a laser to heat the metal. The laser beam creates a small pool of molten metal, which results in a strong weld. Laser welding is different from traditional welding because it does not require an electrical arc or flame to create the weld. This can be advantageous because it eliminates the need for consumables, such as electrodes or flux, and a power source that can produce an arc or flame. Additionally, laser beam welds are very precise and have low distortion levels.

        Laser welding works by focusing a high-powered laser beam onto the surface of the material being joined. The heat from the laser melts the two materials together, and a fusion weld is created. The energy of the laser beam can be controlled very precisely, which allows for a clean and high-quality weld.

        If you are considering using laser welding for your business operations, it is important to research the different options and find a provider that can meet your specific needs. We're offers laser welding services and has experience welding various types of materials used for businesses.

    • 5 Which configuration should I choose for my welding machine?

        There are 3 types of configurations available for welding machines:

            Manual configuration
            Semi-automatic configuration
            Automatic configuration

        The choice of configuration depends on:

            Your production (small-scale or large?)
            How you want to arrange your workstation

        SENYOQC  Laser Micro manual laser welding machine

        Manual welding machines

            They are more compact than semi-automatic and automatic machines.
            They are equipped with manual or automatic doors.
            The operator is in charge of the sequence of parts to be welded.
            These machines are suitable for small-scale production.

        SENYOQC  Laser semi-automatic laser welding machine

        Semi-automatic laser welding machines

            They are larger than manual welding machines.
            They are equipped with turntables.
            These machines are ideal for medium and large-scale production.

        SENYOQC automatic laser welding machine

        Automatic laser welding machines

            These are the largest.
            They are robotized and automatically manage the positioning of the part under the laser source.
            Human intervention is reduced, which relieves the operator.
            They are ideal for large-scale production.
            They enable gains in productivity.
            The presence of an automatic loading and unloading station reduces downtime.
            On the other hand, they are much more expensive.

    • 6 Laser Welding Machine What parameters should be checked?

        Before using your laser welding machine, you will need to verify several parameters. Here are some common precautions to take to ensure that your welding operations are a success.

        • Adjust energy

          • It is important to adjust the energy appropriately in order to adapt the power to the process.

          • This will prevent energy waste.

        • Ensure that you have the correct beam diameter

          • The diameter affects the welding performance.

          • We recommend that you choose a laser beam with a diameter between 0.2 and 2 mm.

        • Check the pulse frequencies

          • Pulse frequencies that are too high result in pulse energies that are too low making the welding less efficient or even inefficient.

        • Monitor the waveform of laser pulses

          • We recommend that you change the waveform according to the metal you intend to weld.

          • If you use an inadequate waveform, 60% to 98% of the laser energy will be lost and your welding operation will fail.

    • 7 How to choose the laser beam source?

        There are three types of sources: fiber laser, CO2 laser and Nd:YAG laser. The choice of source depends on the type of laser you have chosen (pulsed or continuous).

        • The fiber laser:

          • This technology is based on sharp and thin beams that allow continuous and penetrative work to be carried out.

          • Like the CO2 laser, the fiber laser can penetrate thick sheets with great speed and efficiency.

          • It is easier to integrate into a machine than other lasers both in terms of use and maintenance.

          • This laser offers an average efficiency of 25%.

        • The CO2 laser:

          • This technology uses a gas mixture of carbon dioxide, helium and nitrogen that is electrically-excited and optimized for continuous operation.

          • Like the fiber laser, the CO2 laser can penetrate thick sheets with great speed and efficiency.

          • It is more effective at penetrating thick steel parts than the fiber laser so it is more widely used.

          • It is more flexible and can penetrate thicker and lighter materials than the fiber laser.

          • This laser offers an average efficiency of 7% for 8,000 W.

        • The Nd:YAG laser:

          • It allows effective control of the power, duration and shape of the laser pulses.

          • It is optimized for pulsed mode.

          • But it emits pulses of very different wavelengths that do not all reach their target and then dissipate in the form of heat.

          • This type of laser is less energy efficient (3 to 4% efficiency) than CO2 lasers (7 to 10%) and fiber lasers (25 to 30%).

    • 8 Laser welding machine Pulsed or continuous laser?

        Your laser welding machine can be equipped with one of the following two types of lasers: a pulsed laser or a continuous laser. The choice of one over the other depends on the thickness of the material you want to weld.

        • The pulsed laser:

          • It is suitable for metals that are light and thin.

          • It prevents them from being deformed or melted.

          • This type of pulsed laser is mainly used to weld sheet metal, razor blades, gold jewelry chain links and titanium pacemakers.

        • The continuous laser:

          • It is recommended for welding thick parts.

          • It is particularly effective on refractory metals.

          • It can pose problems if it is used on metal or a part that is too thin. In these cases the laser could damage, deform or melt the part.

          • It is more expensive than a pulsed laser, but it also reduces operating costs.

    • 9 Why choose a laser welding machine?

        Laser welding machines have several advantages:

        • They are very fast:

          • The laser allows the metal to be heated extremely quickly, while limiting the risk of deformation.

          • This technology is particularly effective for welding large quantities of sheet metal and is therefore widely used in the automotive industry.

        • They are also highly accurate:

          • They allow a localized, very fine, very clean, almost invisible welding.

          • They are particularly suitable for welding small parts.

          • This type of welding is very popular in the dental and jewellery industries as it provides the most aesthetic welding possible.

          • It is also possible to split the laser beam into several beams to provide welding that is even more accurate.

        • They can be adapted to a wide variety of part shapes and materials:

          • Laser welding machines are mainly used to weld metals, including refractory metals.

          • It is also possible to weld non-metallic parts with them, such as porcelain and glass.

          • You can use them to weld parts with very different shapes.

        • They do not wear out:

          • Laser welding machines operate without contact, so there is no risk of wear and tear on the machine.

          • There is also no need to change tools or electrodes, which is a definite advantage in terms of waste reduction.

        • They can be given orders digitally:

          • It is now possible to control the quality of the welding from a computer during the welding process.

          • The high level of automation allowed by such a process also makes it possible to detect and solve any quality problems.

    • 10 Choosing the right laser welding machine

        Laser welding is a non-contact process that allows metal parts to be assembled mainly by means of a laser beam.

        This type of welding is suitable for applications that require high speeds and for thin welding with low thermal distortion.

        The speed of this process, as well as the ability to control the quality of welding during the operation and its high level of automation, make laser welding a widely used method in many industrial sectors such as the medical industry, electronics, tool making and the automotive sector

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