Traditional Welding Technology
1. Arc Welding:
Arc welding uses arc heat to melt metal to achieve connection, covering branches such as arc welding, submerged arc welding, and gas shielded welding, occupying more than 60% of the global welding market. Its core advantages and limitations coexist:
- Balance between cost and efficiency: The equipment procurement cost is only 1/5 of laser welding, and the consumables cost is low, which is suitable for low-end and medium-end manufacturing industries;
- Low operating threshold: The welder training cycle is short, and open arc welding is easy to observe the molten pool. It is still irreplaceable in the fields of building steel structures, pressure vessels, etc.;
- Significant quality bottleneck: The welding heat input is large, resulting in a wide heat-affected zone and a high deformation rate. The weld is prone to defects such as pores and cracks, and the yield rate is usually less than 85%.
- Efficiency limitations: Manual arc welding speed is only 0.3-0.8m/min (1mm carbon steel), although submerged arc welding can reach 1.5m/min, but it needs to pre-embed flux and the process is complicated;
2. MIG Welding
MIG welding uses a continuously fed welding wire as an electrode, and protects the arc and molten pool through inert gas (argon/helium). It is widely used in automobile manufacturing, kitchenware processing and other fields:
- High-speed welding capability: The welding speed can reach 5 times that of manual arc welding, and the welding efficiency of 1.2mm galvanized steel plate reaches 18m/min;
- Strong material compatibility: It can weld more than 30 kinds of metals such as carbon steel, stainless steel, and aluminum alloy, especially suitable for thin plate splicing;
- Process defects: The spatter rate is as high as 5%-8%, the weld surface needs to be polished, and the cost of consumables (welding wire, shielding gas) accounts for more than 15%.
- Contradiction between cost and quality: Although the equipment procurement cost is low, the tensile strength of the weld is only 70%-80% of the parent material, which cannot meet high-end requirements such as aerospace.
3. TIG Welding
TIG welding uses non-melting tungsten as the electrode and achieves high-quality welding through inert gas protection. It occupies a core position in the fields of pressure vessels, medical devices, etc.:
- Ultra-precision welding: The weld width can be controlled within 0.5mm, and the air tightness test pass rate reaches 99.9%;
- Wide material adaptability: It can weld 0.1mm ultra-thin stainless steel to 10mm thick titanium alloy, especially suitable for dissimilar metal welding;
- Game between efficiency and cost: The welding speed is only 1/3 of MIG welding, and the equipment and consumables cost is twice that of MIG welding, which is not competitive enough in small and medium batch production.
- Operational barriers: Senior welders are required (training cycle is more than 6 months), labor costs account for more than 40%, and the competitiveness is not enough in small and medium batch production.
Laser Welding Technology:
1.Principles and Advantages
Laser welding focuses a high-energy-density laser beam on the workpiece surface, causing the material to melt and recrystallize in milliseconds. Its core advantages include:
- Energy density breakthrough: The focus spot diameter can be reduced to 0.05mm, which is 1/10 of TIG welding, achieving “zero gap” welding;
- Precise control of heat input: The width of the heat-affected zone is only 1/5 of arc welding, and the welding deformation rate is reduced by 80%;
- Material absorption rate revolution: The interaction between laser and metal produces a “keyhole effect”, and the absorption rate of high-reflective materials such as copper and aluminum is increased to more than 85%.
2. DXTECH Laser Welding VS Traditional Welding:
- Welding accuracy: High welding strength, weld strength is higher than the parent material. The processed products have high wear resistance and high red hardness, good fatigue toughness, long service life, and beautiful welds.
- Welding speed: Laser welding has high speed and high efficiency, which can generally reach 10 meters/minute. With advanced optical systems, the laser beam can easily achieve time and space splitting, can perform multi-beam simultaneous processing and multi-station processing, and work in accordance with the method, thereby greatly improving work efficiency and meeting the requirements of large-volume orders.
- Material compatibility: Laser can directly weld insulating materials, and it is relatively easy to weld dissimilar metal materials. It is particularly suitable for refractory metals, dissimilar metals with large differences in thermal physical properties of heat alloys and titanium alloys, workpieces with large differences in volume and thickness, and components near the weld that are flammable, cracked, and exploded when heated.
- Deformation control: Laser welding has high energy density (greater than 105W/cm2), short action time, small heat-affected zone (only 10%~20% of the weld width) and deformation, and can be welded in the atmosphere without gas protection or vacuum environment.
- Cost structure: Laser welding is simple and easy to learn, with low proficiency requirements for operators, saving training costs. The laser welding effect is beautiful, no post-processing is required, and the manual work in grinding, polishing and leveling processes is greatly reduced or eliminated.
- Environmental compliance: no splash, no smoke and dust (equipped with molecular sieve dust removal), the carbon emissions of hydrogen fuel cell power supply equipment are close to zero, and it has passed UL 2789 and FDA 21 CFR 175 certification. The photovoltaic frame welding line helps enterprises obtain EU CBAM zero-carbon subsidies.
DXTECH Laser Welding Machine Types
HW Series Hot Sale Handheld Fiber Laser Welding Machine
- The handheld welding head is easy to operate and can be used by novices
- High welding efficiency and low heat impact
- Welding a variety of metal materials – up to 1/4 inch thick
CCW Three-in-One Laser Welding Machine
- It has three functions: laser welding, rust removal and cutting
- One machine for multiple uses, saving space
- More than 4 times faster than TIG
MHW Portable Handheld Laser Welding Machine
- Flexible operation, more suitable for outdoor work
- Welding, cutting, rust removal and weld cleaning, customized according to your needs
- Optical cable length: 10m/20m/30m optional
$6,000.00 – $13,000.00
$6,000.00 – $13,000.00
$6,000.00 – $13,000.00
$6,000.00 – $13,000.00
$6,000.00 – $13,000.00
$6,000.00 – $13,000.00
DXTECH Laser Welding Machine Application Industry
1. Welding head configuration: 8 nozzles of 6 different types, suitable for wire diameters from 0.8 to 1.2 mm.
2. Versatile: Wireless welding, cleaning, cutting and other operations can be performed to meet the needs of internal and external corner welding.
3. Technical advantages: Excellent performance in applications requiring high precision and durability.
Wide range of applications：
- Welding of micro components in electronics and battery manufacturing.
- Welding of leak-proof seams in fuel tanks.
- Lightweight alloy connections such as car bodies and fuselages (strict quality requirements)
Why Choose DXTECH
16 Years of Industry Experience
- DXTECH has a 75,000 square professional factory
- Has been deeply rooted in 180 countries and cooperated with 8,000 companies
Strict Quality Control
- Advanced assembly process, 160 strict inspection processes
- It has more than 10 international quality certifications, ISO9001, EU CE certification, FDA certification, UL, CSA certification, COC, SGS, etc.
After-Sales Service
- Provide 2-year warranty, lifelong technical guidance and support
- 50+ professional after-sales service team, 24×7 online technical solutions