Laser Plastic Welding Machine- WFD Series

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Laser Plastic Welding Machine- WFD Series

Laser welding machine for translucent, clear material.
The WFD series is a diode laser that uses diode materials to illuminate between energy bands. Two parallel mirror surfaces inside the diode are formed as a resonant cavity, which illuminates the light, and outputs laser of wavelength 915 nm.
With fiber transmission, a non-contact long-distance operation is convenient for integration with the automated production line. The laser has current feedback closed-loop control, real-time monitoring and adjustment of the output laser to ensure the stability; uniform beam energy distribution, large beam size.
For metal welding it is suitable for wide welding, the surface of the weld is smooth and clean. For welding plastic, with large beam size, the plastic at the joint is evenly melted, to create strong welding and perfect sealing.

Features

- Low maintenance costs and low power demand, zero material consumption, lifetime maintenance-free,electro-optical conversion efficiency up to 47%

- Integrated design, easy to integrate into a machine

- Compact design

- Large beam size

Application and Samples

Laser welding plastic, the laser beam, after transmission through the upper-layer transparent material, will be absorbed by the lower layer. The laser energy, after being absorbed, will be transformed into heat. Since two layers of materials are forced together, the heat will be conducted to transparent layer from absorbing layer, which would make the two layers of materials melt and connected. At the same time, the internal pressure occurs because of the material’s thermal expansion. The total effort of the internal and external pressure can make sure two layers are firmly welded. For the product lower-layer material does not absorb laser, additive needs to be applied to the lower layer.

Almost all thermoplastics and thermoplastic elastomers can use laser welding technology. Commonly used welding materials are PP, PS, PC, ABS, polyamide, PMMA, POM, PET and PBT. However, some other engineering plastics, such as polyphenylene sulfide PPS and liquid crystal polymer, are not suitable for laser welding technology because of their low laser transmittance. Therefore, addictive is often added to the underlying material so that it can absorb enough energy to meet the requirements of laser transmission welding.

Widely applied to the reinforcement and sealing welding of plastics Medical plastic parts.

- Auto plastic parts

- Plastic bottle sealing welding

- Plastic pipe sealing welding

- Oxygen mask sealing welding

Laser Welding Plastic

Technical Specs

Laser Model	WFD10	WFD50	WFD100
Laser Type	Diode	Diode	Diode
Wavelength (nm)	915	915	915
Work Mode	CW	CW	CW
Maximum Average Power (W)	10	50	100
Pulse Width (ms)	0.1~80000	0.1~80000	0.1~80000
Wave Form	16 x 16 sections	16 x 16 sections	16 x 16 sections
Fiber Output	1	1	1
Fiber Diameter (um)	200	200	200
Positioning Method	CCD Camera	CCD Camera	CCD Camera
Cooling System	Air-cooled	Air-cooled	Air-cooled
Power Input	220V±10%，50/60 Hz	220V±10%，50/60 Hz	220V±10%，50/60 Hz

PLASTIC WELDING CHART

W - Perfect welding
P - Good welding

Options and Accessories

Customized automated worktable.