Details

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Welding Comparison

• LASER WELDING

Laser welding is wide applied recently year in the metal fabrication industry, features minimum heat-affect-zone, fast welding speed, tiny distortion, and good welding finishes.
The first and widely adopted industry is automotive, due to its faster welding speed can follow production beats, good- looking finishes rarely require post- welding treatment, minimum distortion for thin plate.

• TIG WELDING

TIG welding is a highly skilled process, acquiring well-trained workers, and will generate lots of heat which is not friendly to thin material welding. Compared to laser welding, the welding efficiency quite slow.

• MIG WELDING

MIG welding requires a large amount of pretreatment work before welding. And easily generate defects because of grease, and rust. Part deformation is also an unavoidable issue. And the welding angle is quite limited, the workpieces usually need to straighten or beveling.

Benefits 

• Portable

Less than half size of last generation. four- way wheels and handrail for you to mobile.

• Easy

Only few hours training enable office staff to weld.

• Fast

More than 50% faster than traditional welding.

• Extensive

Various welding angles and dissimilar metal welding available

Design and innovation 
1) BWT Laser Source
BWT Laser is one of the biggest laser source provider based in China and offer stable and continuous welding performance for your work.

2) Fast Commisioning
The whole machine body and welding head designed in fast assembly and easy disassembly concept.

3) Ultra Light Welding Head
Only 0.8kg weight, disassembly the collet will turn it into laser cleaner, up to 15 meters laser cables gives you flexibility in different scenarios.

4) Water Cooling
Water cooling has better cooling efficiency and excellent adaptative in extreme weather.

Multiple Application

• LASER WELDING

New generation welding technology enable you faster， better，easier to weld.

• LASER CLEANING

Laser cleaning can use as a professional cleaning tools also a pre-welding treatment process.

• LASER CUTTING

For thin metal and no high requirement of cutting effect, the extra function is also useful.

Laser Welding Applications 

• Automotive
• Precision Parts 
• Battery Cell
• Metal Fabrication

Welding Parameters 

Mild Steel	0.5	400	2.5	220	ER0.8	Butt weld Fillet weld External fillet weld
Mild Steel	1	400	2.5	380	ER1.0
Mild Steel	2	400	3	700	ER1.2
Mild Steel	3	400	3	1200	ER1.2
Mild Steel	4	400	3.5	1500	ER1.6
Mild Steel	5	400	3.5	1700	ER1.6
Stainless Steel	1	400	2.5	350	ER304 1.0
Stainless Steel	2	400	2.5	450	ER304 1.0
Stainless Steel	3	400	3	550	ER304 1.2
Stainless Steel	4	400	3	1500	ER304 1.2
Stainless Steel	5	400	3	1700	ER304 1.6

Welding Techniques 
Self-Fusion Laser Welding

• It leverages high-power laser beam to melt metal even vaporized,
• the molten metal liquid flows back and solidifies, thus the two metal parts can be welded together.
• This method of welding requires the two metal parts fit together well or have a minimum gap between them.

Laser Filling Welding

• Laser filling welding is to feed similar material wire simultaneously while welding. Laser beam melt wire and metal joints to fill the gap. This type of welding has better welding strength and can be welded when there is a gap between two parts.

There is a threshold value of laser energy density in laser welding. Below this value, only the surface of the workpiece will be melted, and the penetration depth is very shallow, once this value is reached or exceeded, metal vapor will be generated, which is a sign with the progress of stable deep penetration welding.

2. Welding Speed
The welding speed has a great influence on the penetration depth. Increasing the speed will make the penetration shallow, but if the speed is too low, the material will be over-melted and the workpiece will be welded through.

3. Focus Distance
There are two types of focus: positive defocus and negative defocus. If the focal is above the workpiece, it is positive focus, otherwise negative focus. The change of focus directly affects the width and depth of the welding.

4. Welding Width
If the diameter of the laser spot is too small, the laser is concentrated on the filler, and the heating of the base metal is insufficient. But If the spot is too large, laser power is not enough to melt wire to have a good welding.

5. Feeding Speed
If the wire feeding speed is too fast, wire will accumulate on the surface of the weld, which will affect the appearance. If the wire feeding speed is too slow, the surface of the weld will sink, and too little filling will affect the welding strength. Feeding speed need to match well with welding speed.

Technical Data

FLW Series    1500W&2000W
Dimension	530×950×670mm(L×W×H)
Machine Body Weight	≤141kg
Size: Wire Feeder Weight	16kg
Welding Head Weight:	0.8kg
Power Input:	220V AC 50/60Hz
Welding Thickness	0-5mm
Welding Auxiliary Gas	Argon or Nitrogen
Max Gas Pressure	15bar
Cooling	Water
Working Condition	10-40℃