Laser Welding Stainless Steel

Description:

Laser Welding Machine is widely used in mobile phone battery shell, electronic components, mobile communication, precision equipment, hardware products, automotive accessories, glasses, clocks, jewelry, medical equipment, thermal cups, wine pots, kitchens and other industries.

Product features
★Welding beam energy distribution, have the best spot for welding needs

★Applicable to all kinds of complex welding, welding of various devices, and 5mm sheet welds

★United Kingdom imports ceramic condenser cavity, corrosion-resistant, high temperature, long life

★welding flexibility and convenience, up to 3 m optical fiber, can be equipped with 5 m fiber optic

★Optional CCD camera surveillance system, allowing easy observation and precise positioning

★Customizable automation tools, can meet mass production of products

★With real-time energy-feedback,output energy is more accurate and more stable（Optional）

FAQ:

Q1:I knew nothing about this machine, what kind of machine i should choose?

A1:Very easy to choose. Just tell us what you want to do by using this machine, then let us give you perfect solutions and

suggestions.

Q2: When I got this machine, but I don't know how to use it. What should I do?

A2:We will send video and English manual with the machine. If you still have some doubts, we can talk by telephone or skype and e-mail.

Q3: If some problems happen to this machine during warranty period, what should I do?

A3:We will supply free parts during machine warranty period if machine have some problems. While we also supply free life long after-sales service. So any doubts, just let us know, we will give you solutions.

Advantages of laser welding machines in aluminium alloy products

Aluminium products as a common industrial product raw material, its power has to reduce the bodywork important, prevent corrosion, etc., the application range is now very common. Especially in automotive manufacturing, such as engines, wheels, dashboards, etc. Involved in processing methods are welding and cutting, due to the outstanding performance of laser welding machine, not only to enhance the processing efficiency, but also welding effect is very good, help to enhance the level of technology of the industry. The following describes the application of laser welding machine on aluminium alloy products.

Laser welding machine in aluminium alloy products because the laser beam is achieved by a pulse or continuous laser beam, so when the laser beam directly irradiates the surface of the aluminium alloy, it can spread the heat from the surface of the metal quickly to the inside of the aluminium alloy, so that the aluminium alloy can melt quickly to form a welding seam, and at the same time, a reaction force is formed on the melted metal, which will depress the surface of the melted aluminium alloy downwards to form a small hole.

The advantages of laser welding machine in the application of aluminium alloy products.

1, high energy density, low heat input, small heat deformation, narrow melting zone and heat-affected zone and large melting depth; Wuhan Ruifeng photoelectric laser is one of the early batch of production of laser equipment enterprises in China's Optics Valley, with sixteen years of experience in research and development and production, leading peer companies in technology as well as integration. Since its inception, the company has always paid attention to the research and development of laser technology and the development needs of customers, and is committed to providing perfect material processing solutions for each customer.

2、Getting microfine weld tissue with high cooling rate and good joint performance.

3, compared to conventional welding, laser welding does not use electrodes, so reducing man-hours and costs.

4、No need for vacuum atmosphere in electron beam welding and the shielding gas and pressure can be selected, the shape of the welded workpiece is not affected by electromagnetic influence and no X-rays are produced.

5. the possibility of welding metallic materials inside closed and transparent objects

6、Laser can be used for long-distance transmission by optical fibre, thus making the process well adapted, and with the computer and robot, the welding process can be automated and precisely controlled.

The above is the application of laser welding machine on aluminium alloy products, with the popularisation of laser processing application level, the use of laser welding machine to weld aluminium alloy products, the heat input is small and the heat source is concentrated, especially after the introduction of fibre laser welding machine, laser welding energy density is more concentrated, the laser wavelength is shorter, high reflection is improved. Through laser wire filling, laser-MIG composite welding, double spot laser welding and other processes, the forming effect of aluminium alloy welding can be significantly improved, and the welding quality has been improved.

Why do handheld laser welders need shielding gas for welding?

Reason 1: To protect the focusing lens from metal vapour contamination and spattering of liquid droplets

The shielding gas protects the laser welding machine's focusing lens from metal vapour contamination and spattering from liquid droplets, especially at high power welding when the ejecta becomes very powerful and it is even more necessary to protect the lens.

Reason 2: The shielding gas is effective in dispersing the plasma shielding produced by high power laser welding

The metal vapour absorbs the laser beam and ionises into a plasma cloud. The shielding gas surrounding the metal vapour also ionises due to the heat. If too much plasma is present, the laser beam is consumed by the plasma to some extent. The presence of the plasma as a second energy on the working surface makes the depth of melt shallower and the surface of the weld pool wider. The rate of electron complexation is increased by increasing the number of electron-ion and neutral-atom three-body collisions to reduce the electron density in the plasma. The lighter the neutral atoms, the higher the collision frequency and the higher the compounding rate; on the other hand, only a shielding gas with high ionisation energy will not increase the electron density due to the ionisation of the gas itself.

Reason 3: The shielding gas protects the workpiece from oxidation during the welding process

Laser welding machines must use a gas for protection, and the program should be set up in such a way that the shielding gas comes out first and then the laser, to prevent oxidation of the pulsed laser during continuous processing. Inert gases protect the molten pool and can be disregarded when welding certain materials regardless of surface oxidation, but for most applications helium, argon and nitrogen are often used to protect the workpiece from oxidation during the welding process.

The laser welding machine operation guide

Firstly, preparatory work

1, check the laser welding machine power laser welding machine structure, the water cycle is normal.

2, check whether the equipment within the machine gas link is normal.

3, check the surface of the machine without dust, spots, oil, etc.

Secondly, turn on the machine

1, power on, open the main power switch.

2, open the water cooler, laser generator, etc. in order.

3, open the argon valve, adjust the gas flow.

4, enter the current work parameters to be performed

5, the implementation of welding operations.

Thirdly, shut down the machine　

1、Exit the program and close the laser generator.

2, in order to close the dust machine, water cooler and other equipment.

3、Close the valve of the argon gas bottle.

4、Close the main power switch

Fourthly, attention

1、In the process of operating the laser welding machine, if you encounter an emergency (water leakage, abnormal sound of the laser, etc.) you need to immediately press the emergency stop and quickly cut off the power supply.　　

2, must be opened before the operation of the laser welding external circulation water switch.

3, because the laser system uses water cooling method, the laser power supply using wind cooling method, if the cooling system failure, strictly prohibited to turn on the work.　

4、No dismantling of any parts of the machine, no welding when the safety door is open, no looking directly at the laser or reflecting the laser with your eyes when the laser is working, and no looking directly at the laser welding head to avoid eye injury.

5. Do not place flammable or explosive materials on the laser light path or where the laser beam can be irradiated to avoid fire and explosion.

6、When the machine is working, the circuit is in a high voltage and strong current state, it is strictly forbidden to touch the circuit components in the machine while working.

Precautions for the use of laser equipment

Good earthing: Our laser equipment is equipped with automatic safety protection and can only work properly if it is correctly and well earthed. To protect your personal safety, it is strongly recommended that the customer provides good earthing conditions for the equipment. The laser power supply and the welding control system are all digitally controlled using industrial microprocessors and only good grounding is required to ensure proper, stable operation.

Smaller voltage fluctuations: If the power supply access point of the equipment or very close to the high-powered power supply equipment, especially power equipment with a large impact on the power grid, such as high-powered motors, argon arc welding machines, EDM machines, etc.. It is recommended that the customer is equipped with a voltage regulator with a voltage fluctuation suppression function.

Ambient temperature: 4 degrees Celsius - 32 degrees Celsius. When the equipment is running, the ambient temperature should not exceed 32 degrees Celsius, because the laser power supply part, the power is very high, some power devices need to use up the heat, and the ambient temperature is too high will lead to normal heat dissipation, will lead to the whole system work unstable, or even damage. And in winter, the cooling water needs to be strictly prevented from freezing, because the laser crystal, xenon lamp and spotlight cavity are filled with water and freezing will directly lead to damage to these devices. In winter, for example, the cavity is emptied when not in operation for a long time. Before turning the machine on again, for example, fill it with water, turn on the power air switch, firstly the main machine is not turned on, only the water machine is empty for 10 minutes so that the water temperature returns to above 4 degrees Celsius and then the main machine is turned on. (It is strongly urged not to place the equipment outside or for low temperature icing, otherwise it is easy to damage the equipment)

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