laser welder for sale- Laser Welding Machine for Aluminum

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What is the price of 1000w laser welding machine?

1000w Laser welding machine price range from 4,000$ to 6,500$.

With the continuous development of science and technology, laser welding technology is becoming more and more mature, and laser welding machines are also used more and more widely, becoming an important welding equipment for material processing and manufacturing.

Laser welding machine principle
The laser welding machine uses a laser beam to heat a certain area on the surface of the material above the melting point. After the energy is transferred and diffused, the interior of the material is gradually heated to a high temperature to achieve melting and welding of the material. Laser welding machines usually use high-power laser beams , so that the welding strength and quality are guaranteed.


Advantages of laser welding machine
1. The laser welding machine can weld materials of various properties, and has the functions of welding, marking, cutting and cleaning operations. It can be seen in many fields such as electronics, machinery, aviation, medical treatment, and electric power.

2. The laser beam used by the laser welding machine has a very high energy density, high welding efficiency, and can complete the welding operation in a short time. The welding quality is high, and the width of the weld is narrow and deep.


3. The welding precision of the laser welding machine is high, and the focus of the laser beam is very small, which can realize the welding of small-scale or fine parts, and is also capable of welding special-shaped materials.

4. The laser welding machine does not need to contact the material during the welding process, and the heat-affected zone on the surface of the material is small, so the deformation of the material is also small.


Laser welding machine recommendation
1. Fiber laser welding machine: Fiber laser welding machine uses fiber laser as the laser source. It is a high-precision, high-efficiency, high-quality welding equipment. It is suitable for welding various materials and provides the possibility for precision welding.

laser welder for sale

2. CO2 laser welding machine: CO2 laser welding machine uses CO2 gas as the working medium, which is suitable for welding thicker materials such as stainless steel and copper alloy, with large welding depth and fast welding speed.


3. Nd:YAG laser welding machine: Nd:YAG laser welding machine adopts Nd:YAG laser as the light source, the quality of the laser beam is stable, the service life is long, and it can weld various metal materials such as titanium alloy, copper, aluminum, etc., and is suitable for small Welding of workpieces.

4. Semiconductor laser welding machine: The advantages of semiconductor laser welding machine are fast welding speed and high efficiency, and can meet the needs of high-quality welding operations at the same time.

 

Muti Function Laser Welding Machine

Laser Welding Machine for Aluminum

Laser beam welding is one of our most popular services for welding aluminum. The process is ideal for fast, clean welds. The heat affected zone is minimized and weld penetration can range up to 0.25” in aluminum.

laser welder for sale
Portable Handheld Fiber Laser Welding Machine Application

Portable Handheld Fiber Laser Welding Machine Application

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A Laser welding is one of the important aspects of the application of laser processing technology, and it is the most watched and most promising welding technology in the 21st century. Compared with traditional welding methods, laser welding has many advantages, such as higher welding quality and faster efficiency. At present, laser welding technology has been widely used in manufacturing, powder metallurgy, automobile industry, electronics industry, biomedicine and other fields. First, the principle of laser welding Laser welding belongs to fusion welding, using laser beam as the welding heat source. The welding principle is: the active medium is excited by a specific method to make it oscillate back and forth in the resonant cavity, and then converted into a beam of stimulated radiation. When the beam and the workpiece are in contact with each other , its energy is absorbed by the workpiece, and welding can be performed when the temperature reaches the melting point of the material. △Laser welding principle According to the formation mechanism of welding pool, laser welding has two basic welding mechanisms: heat conduction welding and deep penetration (small hole) welding. The heat generated during heat conduction welding diffuses to the inside of the workpiece through heat transfer, melting the surface of the weld seam, and basically does not produce vaporization. It is often used for welding low-speed thin-walled components. Deep penetration welding vaporizes the material and forms a large amount of plasma. Due to the high heat, small holes will appear at the front of the molten pool. Deep penetration welding can completely penetrate the workpiece, and the input energy is large and the welding speed is fast. It is currently the most widely used laser welding mode. Second, the main process parameters of laser welding There are many process parameters that affect the quality of laser welding, such as power density, laser pulse waveform, defocus, welding speed and auxiliary blowing shielding gas. 1. Laser power density Power density is one of the most critical parameters in laser processing. With a higher power density, the surface layer can be heated to the boiling point within microseconds, resulting in a large amount of vaporization. Therefore, high power density is very beneficial for material removal processes such as drilling, cutting, and engraving. For a lower power density, it takes several milliseconds for the surface temperature to reach the boiling point. Before the surface layer vaporizes, the bottom layer reaches the melting point, which is easy to form a good fusion weld. Therefore, in heat conduction laser welding, the power density is in the range of 104-106W/cm2. 2. Laser pulse waveform The laser pulse waveform is not only an important parameter to distinguish material removal from material melting, but also a key parameter to determine the volume and cost of processing equipment. When the high-intensity laser beam hits the surface of the material, 60-90% of the laser energy will be reflected and lost on the surface of the material, especially gold, silver, copper, aluminum, titanium and other materials with strong reflection and fast heat transfer. During a laser pulse signal, the reflectivity of the metal changes with time. When the surface temperature of the material rises to the melting point, the reflectance will drop rapidly, and when the surface is in a molten state, the reflectance stabilizes at a certain value. △Laser welding pulse waveform of different materials 3. Laser pulse width Pulse width is an important parameter for pulsed laser welding. The pulse width is determined by the penetration depth and the heat-affected zone. The longer the pulse width, the larger the heat-affected zone, and the penetration depth increases with the 1/2 power of the pulse width. However, increasing the pulse width will reduce the peak power, so increasing the pulse width is generally used for heat conduction welding, and the weld size formed is wide and shallow, especially suitable for lap welding of thin and thick plates. However, lower peak power results in excess heat input, and each material has an optimum pulse width that maximizes penetration. 4. Defocus amount Laser welding usually requires a certain amount of defocus, because the power density in the center of the spot at the laser focus is too high, and it is easy to evaporate into holes. On each plane away from the laser focus, the power density distribution is relatively uniform. There are two ways to defocus: Positive and negative defocus. If the focal plane is above the workpiece, it is positive defocus, otherwise it is negative defocus. According to the theory of geometric optics, when the distance between the positive and negative defocus planes and the welding plane is equal, the power density on the corresponding planes is approximately the same, but in fact the obtained molten pool shape is somewhat different. Wh

A The handheld laser welding machine has become a new industrial technology favored by the market due to its advantages of simple operation, high efficiency, and smooth and beautiful weld seam. Handheld laser welding machines are widely used, but many people want to ask what materials the handheld laser welding machine can weld. 1. Stainless steel What materials can the handheld laser welding machine weld The stainless steel of the handheld laser welding machine has a high coefficient of thermal expansion, and it is easy to overheat during welding. When the heat-affected zone is slightly larger, it can cause serious deformation problems. Handheld laser welding machines generate less heat throughout the welding process. In addition, stainless steel has relatively low thermal conductivity, high energy absorption rate and high melting efficiency, and a well-formed weld can be obtained after welding. 2. Carbon steel Ordinary carbon steel can be directly welded by hand-held laser welding, which is comparable to stainless steel welding with a small heat-affected area. However, when welding medium and high carbon steel, the residual temperature is still relatively high, so preheating before welding and heat preservation after welding are required to eliminate stress and avoid cracks. Here, we can say cold welder. Medium to high carbon steels can be slowly welded or repaired with cast iron wire cold welding, and cold welders teach hand-held laser welding to be better at post-weld heat residue. 3. Die steel The handheld laser welding machine can be used to weld various types of die steel, and the welding effect is very good. 4. Aluminum and aluminum alloy Aluminum and aluminum alloys are highly reflective materials and porosity may develop in the weld pool or root during welding. Compared with previous metal materials, aluminum and aluminum alloys have higher requirements on parameters, but as long as proper welding parameters are selected, welds with the same mechanical properties as the base metal can be obtained. 5. Copper and copper alloys Copper has very strong thermal conductivity, and it is easy to produce incomplete penetration and partial incomplete fusion during welding. Typically, during the welding process, the copper material is heated to aid in the welding. Here I am talking about thin copper materials. Because of its energy concentration and fast welding speed, it can be directly welded by hand-held laser welding. The high thermal conductivity of copper has little effect on it. 6. Welding between different materials The handheld laser welding machine can be used between dissimilar metals such as copper-nickel, nickel-titanium, copper-titanium, titanium-molybdenum, brass-copper, and low-carbon steel-copper. , laser welding can be carried out under certain conditions (gas or temperature).

A Laser welding machines are generally used for tailor welding and repair welding of metal materials. The working principle of laser welding is to use high-energy laser pulses to heat a small area of the material. The high-temperature energy diffuses from the surface of the material to the inside, and forms a specific molten pool after melting. The material in the whole process is in a high temperature state, so how should we use the laser welding machine safely? Precautions for safe use of laser welding machine 1. During the operation, if there is an emergency, such as water leakage or abnormal sound of the laser, it is necessary to immediately press the emergency stop button and quickly cut off the power supply. 2. The external circulating water switch of laser welding must be turned on before operation. Since the laser system adopts water cooling mode and the laser power supply adopts air cooling mode, if the cooling system fails, it is strictly forbidden to start the machine. 3. It is strictly forbidden to touch all circuit components in the machine while working. When the laser welding machine is working, the circuit is in a state of high voltage and strong current. Untrained personnel are prohibited from operating the machine. 4. It is strictly forbidden to use the eyes to scan the laser directly when the laser is working, so as to avoid eye injury. It is forbidden to use external equipment to reflect the laser light when the laser light is working. 5. Do not disassemble any parts of the machine at will, and do not weld when the safety door of the machine is open, and do not aim the laser head at the equipment parts. 6. Do not place flammable and explosive materials in the laser light path or where the laser beam can be irradiated, so as not to cause fire and explosion.

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