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Laser Welding Aluminum To Steel

Replace the previous fixed optical path with a handheld welding gun. Aimed at carrying out long-distance, large workpiece laser welding, welding heat-affected area is small, will not lead to deformation of the work, blackening, the back side of the traces of the problem, and the welding depth is large, welded firmly, and the dissolution of the full.
Product Model: ST-FW1500H/ST-FW2000H/ST-FW3000H
Laser power: 1500W/2000W/3000W
Single maximum welding thickness: 0.5-8mm

Details        Product Parameters        Samples       Video

laser welding aluminum to steel features-Suntop

Features of laser welding aluminum to steel

1. Multi-purpose machine, equipped with versatile nozzles for welding, cutting, cleaning, and other functions.

2. Independently developed handheld welding torch, equipped with various safety alarm devices, easy and flexible to operate.

3. The machine has multiple safety alarm functions. The welding copper nozzle's trigger switch is only effective when it touches the metal and securely clamps the metal sheet. The welding copper nozzle automatically locks the light after moving away from the workpiece. The machine has high safety to ensure absolute safety for operators during work.

4. Suntop's patented water circulation protection system and auxiliary gas detection effectively extend the service life of the laser lens and prevent damage to optical components caused by improper operation.

5. Comes with various welding copper nozzles, such as flat angle, inner angle, outer angle, etc. Different nozzles can be replaced according to different welding needs to meet various welding requirements.

Details of laser welding aluminum to steel

1. Laser welding head

Light weight only 0.8KG, flexible and convenient to weld any shape of metal parts, adjustable welding seam width, can be 10 meters long distance welding. Equipped with safety temperature monitoring system.

2. Operation interface

Multi-language intelligent control panel, flexible adjustment of welding parameters, multi-group welding parameter library, light output cumulative timing, etc.

3. Automatic wire feeding system

Touch screen design, automatic wire filling, fully digital design, support 0.8mm, 1.0mm, 1.2mm, 1.6mm, 2.0mm diameter stainless steel and aluminum wire.

4. Laser Source

We use customized minimum 20um core diameter fiber for deeper penetration, laser life up to 100,000 hours, maintenance-free, with Bluetooth capability.

5. Water Chiller

Double cycle water cooling makes the laser source and welding head cooling better, temperature control sensor adopts imported brand.

6. Welding connection fiber optic

10 meters long fiber optic cable with built-in design effectively avoids damage to the fiber and problems caused by moisture, which greatly increases the service life of the laser components.

laser welding aluminum to steel detail-Suntop

Advantages of laser welding aluminum to steel

● Handheld coal gun to replace the previous inherent light path, more flexible and convenient, to achieve long-distance emblem light welding, to overcome the limitations of the workbench travel space.
● Handheld welding head equipped with 5m-10M original optical fiber, flexible and convenient, can achieve outdoor welding.
● Handheld mode of operation, assembly of special welding nozzle can be realized on the workpiece any part of any angle of the welding.
● Beautiful weld, no weld scars, no discoloration, no need to follow up to play the rice: weld firmly, weld strength to reach or even exceed the base material itself: suitable for welding, stacked welding, inside and outside the Angle Welding, round rainbow welding, irregularly shaped coal, and so on.
● The whole set of equipment is highly functional and ergonomically designed, suitable for all kinds of working environment scenarios.
Specialized laser safety protection function, to protect the safety of the operator during the work.
● The operation is simple and easy to learn, the operator's technical threshold is not high, saving labor costs.

Use of laser welding aluminum to steel

With the continuous development of laser welding technology, laser welding machines are becoming more and more widely used.

Welding: The main welding objects of laser welding machines are metals, such as stainless steel, copper, aluminum, gold, silver, titanium, nickel, tin, chromium, niobium, carbon steel, mold steel, galvanized sheets, etc. It is suitable for flat, straight, Arc and arbitrary shape welding, welding work can be carried out from multiple angles to meet users' personalized welding needs.

laser welding aluminum to steel welding-Suntop

Cutting: Welding and cutting are often inseparable. Laser welding machines combine the functions of the two. Laser welding machines can be used to laser cut metal materials, such as copper plates, aluminum plates, stainless steel plates, carbon steel plates, galvanized plates, etc. Meet the cutting needs of conventional thin plates.

laser welding aluminum to steel cutting-Suntop

Cleaning: Cleaning with a laser welding machine is easy and flexible, and can remove rust, oxides, grease, dirt, etc. on the surface of various workpieces. When using a handheld laser welding machine for cleaning, it is necessary to avoid harm to the human body caused by the laser beam.

laser welding aluminum to steel cleaning-Suntop

Weld bead cleaning: It can effectively remove oxides, welding slag, oil, dust and other impurities produced during the welding process, making the weld surface clean. This not only helps improve the quality of the weld, but also enhances its strength and appearance. Laser cleaning is highly precise and controllable, thoroughly cleaning the weld surface without damaging the base material.

laser welding aluminum to steel welding seam cleaning-Suntop

Single side weld thickness

Maximum melting




Stainless steel   (mm)




Mild steel (mm)




Aluminum (mm)




Brass/copper (mm)




Galvanized sheet   (mm)




Iron (mm)




Remark: Double weld thickness can be achieved if the material is welded from both sides in two times.

Welding method

There are various welding methods to choose from, allowing for welding at any angle, including overlay welding, butt welding, vertical welding, fillet welding, inside corner welding, outside corner welding, etc. These methods can be used for welding various workpieces, including complex welds and irregularly shaped workpieces, especially larger ones.

laser welding aluminum to steel welding method-Suntop

Application materials

Suitable for stainless steel, carbon steel, copper, aluminum, gold, silver, chromium, nickel, titanium and many other metals and alloys; also can be used for welding between a variety of dissimilar materials.

Application industry

Suitable for all kinds of sheet metal, moulds, chassis, power distribution cabinets, kitchen and bathroom products, all kinds of hardware lighting, advertising signs, door and window frames, handicrafts, household products, food machinery, medical equipment, auto parts and other industries.

Parameters of laser welding aluminum to steel









Welding   gun weight




Max.   welding thickness (mm)




Max.   welding seam width (mm)




Laser type

Fiber laser   (Suntop custom 20um welding exclusive)

Laser detection method

Bluetooth wireless   connection, Mobile App Monitoring

Control panel language support

English,   Spanish, German, French, Turkish, Italian, Russian,

Vietnamese, Thai, Korean, Japanese, etc.

Laser wavelength (nm)


Suitable welding materials

Carbon   steel, stainless steel, aluminum, galvanized sheet metal,

brass, iron and other metal materials

Adapted welding methods

Spot   welding, overlap welding, splice welding, fillet welding,

lap welding etc.

Laser power adjustment range (%)


Cooling method

Advanced   water-cooling, dual temperature control and automatic


Welding aiming preview method

Built-in Red-Light pointer

Protection systems

Air pressure sensor and solenoid valve   control

Length of fiber optic cable (meter)

Standard 10 (can be customized 15)

Welding shielding gas

Argon or nitrogen (air pressure approx. 6-8   bar)

Working environment

Temperature 5-45 °C /humidity 10-90%

Other   optional support functions

Cleaning   + cutting

Cleaning   + cutting

Cleaning   + cutting + weld bead cleaning

Max.   Cutting thickness (mm)




Max. cleaning width (mm)




Automatic wire   feeder type

(Universal   with TIG wire)

Single wire feed

Single wire feed

Support both the double wire feed and single wire feed

Solid wire type (SS, Iron, AL, Brass)

0.8, 1.0, 1.2, 1.6

0.8, 1.0, 1.2, 1.6

0.8, 1.0, 1.2, 1.6, 2.0, 2.5

Temperature control monitoring alarm




Main machine consumables

Laser protective lenes, welding nozzles, welding wires

Machine size (MM)




Machine net weight (KG)




Power supply requirement

110V / 220V±10%, single phase

380V±10%, three phase

Total power consumption (Maximum)




laser welding aluminum to steel samples-Suntop





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