A MOPA FIBER LASER MARKING TESTING ON PE MATERIAL

2020-05-25

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In this report, we test four parameters and marked the letter “A” on the material. To test, we change one specific parameter with 8 different values while keeping the other four parameters unchanged.

—— Test 1 ——

Speed: 300 mm/s, Power: 8%, Mode: 1, Fill: na

Frequency(Variable): 5khz, 25khz, 50khz, 100khz, 300khz, 500khz, 750khz, 1000khz

The following pictures are observed under microscope(50 X). Order from left to right for letters pointed by arrows in the picture above.

25khz 100khz 1000khz

—— Test 2 ——

Frequency: 30khz, Power: 8%, Mode: 1, Fill: na

Speed(Variable): 75 mm/s, 125 mm/s, 200 mm/s, 300 mm/s, 400 mm/s, 600 mm/s, 1200 mm/s, 2400 mm/s

The following pictures are observed under microscope(50 X). Order from left to right for letters pointed by arrows in the picture above.

75 mm/s 600 mm/s 2400mm/s

—— Test 3 ——

Frequency: 25khz, Power: 3%, Mode: 1, Speed: 1000 mm/s

Fill distance(Variable): 0.2 mm, 0.1 mm, 0.08 mm, 0.06 mm, 0.04 mm, 0.03 mm, 0.02 mm, 0.01 mm

The following pictures are observed under microscope(50 X). Order from left to right for letters pointed by arrows in the picture above.

0.2mm 0.06mm 0.01mm

—— Test 4 ——

Frequency: 35khz, Power: 10%, Speed: 250 mm/s, Fill: na

Mode : 1, 2, 3, 4, 5, 6, 7, 8

The following pictures are observed under microscope(50 X). Order from left to right for letters pointed by arrows in the picture above.

Mode 1 Mode 4 Mode 8

We used five main parameters to adjust the marking effect on the black plastic(PE) with MOPA fiber laser marker. They are “speed”, “frequency”, “power”, “fill distance” and “mode”. One of the advantage of our machine is that it has multiple mode(Pulse width)—8 in total, compared to other fiber laser source with only one mode.

In this report, we test four parameters and marked the letter “A” on the material. To test, we change one specific parameter with 8 different values while keeping the other four parameters unchanged.

Test 1

Speed: 300 mm/s, Power: 8%, Mode: 1, Fill: na

Frequency(Variable): 5khz, 25khz, 50khz, 100khz, 300khz, 500khz, 750khz, 1000khz

The following pictures are observed under microscope(50 X). Order from left to right for letters pointed by arrows in the picture above.

25khz 100khz 1000khz

Test 2
Frequency: 30khz, Power: 8%, Mode: 1, Fill: na

Speed(Variable): 75 mm/s, 125 mm/s, 200 mm/s, 300 mm/s, 400 mm/s, 600 mm/s, 1200 mm/s, 2400 mm/s

The following pictures are observed under microscope(50 X). Order from left to right for letters pointed by arrows in the picture above.

75 mm/s 600 mm/s 2400mm/s

Test 3
Frequency: 25khz, Power: 3%, Mode: 1, Speed: 1000 mm/s

Fill distance(Variable): 0.2 mm, 0.1 mm, 0.08 mm, 0.06 mm, 0.04 mm, 0.03 mm, 0.02 mm, 0.01 mm

The following pictures are observed under microscope(50 X). Order from left to right for letters pointed by arrows in the picture above.

0.2mm 0.06mm 0.01mm

Test 4
Frequency: 35khz, Power: 10%, Speed: 250 mm/s, Fill: na

Mode : 1, 2, 3, 4, 5, 6, 7, 8

The following pictures are observed under microscope(50 X). Order from left to right for letters pointed by arrows in the picture above.

Mode 1 Mode 4 Mode 8

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