Choosing the right laser welder is a key decision for any manufacturing or manufacturing business. To ensure that you make an informed choice, you must have a thorough understanding of the product's features, functions, and benefits. We will delve into everything you need to know about laser welding machines to provide you with detailed product introductions and insights to help you choose the perfect equipment for your needs.

Introduction to laser welding principle

Laser is a new light source, which has the characteristics of coherence, monochromaticity, directivity and high output power, which are incomparable to other light sources. If the laser is focused to a point, the power density on the focal plane can reach 105-1013 w/cm2. Laser welding is the use of laser beam excellent directivity and high power density characteristics to carry out work.
The laser is generated by the laser, transmitted by the flexible fiber optical path, and is focused by the focusing mirror inside the welding head, acting on the weld between the materials to be processed, and with the help of the protective gas (to prevent the material from being oxidized), the material is liquefied to form a specific melt pool, so as to achieve the purpose of welding.

Product introduction

1.Product outline structure

1.1 Its shape and structure are shown as follows:

The complete set of equipment is mainly composed of continuous fiber laser, transmission fiber, handheld laser welding head, wire feeding system, water cooler, control system and cabinet. It has a lot of new ideas in the shape, structure and man-machine interface suitable for operation based on humanization and the effectiveness of work.
The equipment adopts integrated design, compact and beautiful structure, with good beam mode, stable energy, stable performance, reliable use, fast welding speed, wide welding range, consumables and consumable parts long service life, etc., while fully considering various parameters of the equipment in mass production, key parameters can be reconciled from the details of the data display closed loop.

2. Product Advantages

--Independently developed laser welding head：The welding torch weighs only 0.5kg, is simple and lightweight, can be dimmable spot 0-5mm, unique rotating lens, 1 piece top 6 pieces, saving 6 times the cost of consumables

--Smooth and beautiful weld：Welding workpiece without deformation, no welding scar, welding firmly reduce the subsequent grinding process, save time and cost.

--Simple and flexible operation, easy to use：Hand-operated welding, flexible and convenient, can be any shape, any Angle welding; Simple training can be operated, without the old master can also weld beautiful products.

--Faster speed with fewer supplies：Welding speed is fast, 2-10 times faster than traditional welding, and a machine can save at least 2 welders a year. Laser welding without welding wire, less consumables, long life, safer, more environmentally friendly.

3. Performance characteristics

● Suitable for welding of various metal materials, carbon steel, stainless steel, high-strength steel, aluminum, copper and alloy materials;
● Can be continuous or pulse light, not only can achieve thermal conductance welding, but also continuous deep penetration welding. It can realize spot welding, butt welding, overlap welding, sealing welding, seam welding, etc.
● Continuous fiber laser, excellent beam quality, maintenance-free, photoelectric conversion efficiency is greater than 25%, pump source service life is greater than 100,000 hours;
● Small heat deformation and heat affected zone (suitable for processing high melting point, high hardness, special materials);
● It can process complex shaped parts and small pa
● Combined with mechanical arm and other automatic mechanism, can realize the automation of processing;
● Can realize wire filling welding, due to advanced processing methods, can improve the existing product structure and materials.

The main technical parameters and configuration of the equipment

1.The main technical parameters of hand-held fiber laser welding machine are as follows:

2. Main configuration

3. Description of main units

3.1 Fiber continuous laser generator

Compared with traditional lasers, fiber lasers have higher photoelectric conversion efficiency, lower power consumption and better beam quality. Fiber lasers are compact and ready for use. Due to its flexible laser output mode, it can be easily integrated with the system equipment.

Main feature:
--High beam quality
--Optical fiber output
--High reliability, long life, pump source service life > 100,000 hours
--maintenance-free operation
--High photoelectric conversion efficiency
--The control structure is easy to use
--High modulation frequency

Fiber lasers can operate in continuous or pulse modulation modes up to 20 kHz with electro-optical conversion efficiencies of more than 25%. The dynamic operating range of the device is between 10% and 105% of the total power, and the beam divergence Angle or beam quality does not change in the entire range, so that the device has unprecedented functions: the same laser device can be used at the same time for high power and low power applications, such as welding, precision cutting, etc.

Compared with other conventional lasers operating at low power, the divergence Angle of this laser is much smaller, allowing the lens to be used with a very long focal length to greatly process the area and reduce the splash contamination of the lens.

3.2 Transmission Optical Fibers

A single laser welding system is equipped with a flexible fiber with a length of 15 meters; The bending radius can reach 80MM. When fiber transmits energy, laser fiber has perfect self-protection function. It can automatically cut off the optical path or shut down the laser when the optical fiber is worn and aged, the bending radius is too small, the optical fiber is overheated, and the laser leaks, ensuring the safety of personnel and the safety of the optical fiber.

3.3 Handheld laser welding head

The company has introduced a variety of portable handheld fiber processing heads for small and medium power laser applications, with a wide range of interface Settings to enable them to be paired with a variety of fiber lasers. Optimized optical design allows for more efficient processing. It is a very cost-effective product.

Laser welding head features:

--Clever internal design, good interactive control system, expand the tolerance range of machining parts and weld width, to solve the disadvantage of small spot, better weld forming.
--Light shape, the use of physical engineering design method, comfortable grip; easy to control, easy to operate, easy to use.
--Has a number of safety alarms, automatic light lock after moving the starting parts, high safety.
--Beautiful weld, fast speed, no solder marks, no discoloration, no need for later grinding, less consumables.
--Can be configured with various Angle nozzles to meet the welding requirements of different products.

3.4 Wire feeding system

The whole wire feeding system is composed of wire guide system, wire feeding hose, wire feeding mechanism and so on. This wire feeder can be used with hand-held welding head, widely used in sheet metal processing, kitchen hardware and other industries complex irregular welding process, this wire feeder can send aluminum wire, carbon wire, stainless steel wire and so on.

Standard wire feeding specifications: 0.8, 1.0, 1.2, 1.6mm

Product advantages:

--Easy installation, long life, low noise, low energy consumption;
--Small size, small weight, large torque, can be used for long-distance hand-held welding wire feed;
--Wire feeding and welding control synchronization, wire feeding stability and adjustable, adapt to different scenarios, the operator is easy to master, quick and skilled operation.
--Software control, by controlling the screen design wire feed speed parameters, can save multiple groups of data, arbitrary call.

3.5 Chiller

Product advantages:

--Three-layer condenser technology, large cooling capacity, good heat dissipation, to ensure that the equipment is durable in harsh environments.
--Good water quality, high precision, careful care of the laser, extend its service life.
--With automatic heating technology, reduce customer winter laser boot waiting time, improve production efficiency.
--Circular design, atmosphere and beautiful, improve the matching grade of laser equipment.
--Energy saving, effectively reduce customer production costs.
--High, medium and low match to meet the diversified needs of customers.

Performance characteristics:

--Specially developed for fiber laser, elegant appearance, equipped with low temperature water and room temperature water to meet the constant temperature needs of fiber laser cavity and light outlet.
--The key components of the refrigeration system and electrical system are made of international brand-name products to ensure that the equipment has excellent quality and good reliability
--High temperature control accuracy, normal temperature, low temperature water temperature can be controlled within 1℃.
--High purity circulating water system, supporting monitoring system, effective control of real-time monitoring display.
--The equipment is equipped with alarms such as overtemperature, flow rate and water level to ensure the safe and stable operation of the customer's laser and chiller

3.6 Auxiliary gas

Protective gas: Argon or nitrogen, purity above 99.99%. First check the nameplate on the welding cylinder to see if it meets the requirements for the use of gas, such as purity and pressure. Secondly, the gas from the cylinder is introduced into the gas inlet in the correct way. Gas flow requirements: ≥ 15 L/min

3.7 Other Auxiliary Functions (Optional)

3.7.1 Manual Automatic conversion function

Handheld laser welding machine, standard product upgrade, can be seamlessly connected with the automation mechanism, manual/automatic fast conversion.

Switch one-key conversion, select automatic, start the switch through the quick plug connected to the automation device, the switch light is controlled by the automation device.

3.7.2 Handheld laser cutting function

The optimization of the original handheld laser welding machine, increase the laser cutting function of the equipment, to meet the needs of customers to cut and weld the plate anytime and anywhere. Function conversion can be achieved by quickly replacing the laser cutting nozzle, which can cut the plate below 10mm, and the cutting line and circle can be achieved through the auxiliary tooling.

Welding penetration data

Comparison with other welds

Application industry

Ships, medical, kitchen cabinets, stair elevators, shelves, stainless steel door and window guardrail, distribution box, stainless steel home, automotive sheet metal, aluminum craft works, lithium batteries, etc....

No matter what kind of welding machine and plasma cutting machine you need, we can meet your needs.  If you need advice beyond what is provided in this article, please contact our sales team.  Our team of experts can help you make the right choice...