GCC Fiber Laser is equipped unique Waveform function allowing greater control over laser pulse parameters such as laser pulse shape, pulse energy and pulse duration which can lead to more efficient and effective processing. Each waveform is optimized for pulse energy and peak power at a given pulse duration and frequency. An example would be the use of low repetition rate, high-energy pulses to rough out and remove the bulk of the material while a higher frequency shorter pulse with less energy can subsequently be used in a polishing pass yielding a better surface finish. These waveforms work for any power demands and frequencies giving users a great scope of pulse characteristic optimization for specific applications.
To achieve a high quality finish, Waveforms are used to maintain control of the engraving process. When engraving starts, a less aggressive pulse is initially used in order to avoid a perimeter ridge around the engraved area. Then the Waveforms can be switched to a long high energy pulse with its higher material removal rate. Throughout this process, a short pulsed Waveforms is regularly used to clean the engraved area which helps to remove dross and debris. After the engraving process has finished, the surrounding area is laser cleaned using a short Waveforms to remove any surface deposits. Note that there is a trade-off between material removal rate and engraving quality.
Below is the waveform parameter table for different fiber laser models:
Waveform Number | 20RMZ | 30RMZ | 50RMZ | ||||||
---|---|---|---|---|---|---|---|---|---|
Pulse Duration(ns) | Pulse Frequency (kHz) | Pulse Energy (mJ) | Pulse Duration(ns) | Pulse Frequency (kHz) | Pulse Energy (mJ) | Pulse Duration(ns) | Pulse Frequency (kHz) | Pulse Energy (mJ) | |
1 | 260/40 | 20 | 1 | 260/40 | 30 | >1 | 260/40 | 50 | >1 |
2 | 40/26 | 90 | 0.2 | 40/26 | 140 | >0.2 | 40/26 | 250 | >0.2 |