Product category:
Laser and electron beam welding
News Release from: Rofin-Baasel UK | Subject: StarPulse pulsed YAG rod lasers
Edited by the Manufacturingtalk Editorial
Team on 06 December 2007
Pulsed YAG laser welds reflective metals
A range of pulsed YAG rod lasers, with power ratings from 40W to 500W, can weld delicate components and highly reflective metals, such as aluminium and copper, up to 2.0mm thick.
Rofin-Baasel's StarPulse pulsed YAG rod lasers have power ratings from 40W to 500W This range of lasers encompass the extensive application knowledge gained from a multitude of applications, said the company
This article was originally published on Manufacturingtalk on 30 Apr 2004 at 8.00am (UK)
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StarPulse lasers offer the largest range of pulsed peak power available on the market, said Rofin-Baasel to manufacturingtalk.com.
Precision welding of delicate components is achieved using the accurately controlled low end pulse peak power of 10W.
With up to 20kW of pulsed peak power available, high quality welding on highly reflective materials such as aluminium and copper up to 2.0mm thick can be achieved at high processing speeds.
Further reading
3D laser welder suits batch or volume production
Fast programming, flexible handling and optimized ergonomics are offered by a laser welding system that allows even complicated 3D geometries to be welded.
Manual laser micro welding station is compact
A manually-loaded turnkey laser welding system is ideal for where positioning speed and accuracy are critical for small components.
* Advanced process control - the Rofin Control Unit uses Double Closed Loop principles, which guarantee excellent pulse to pulse repeatability with <1% variation, even at lowest pulse energies.
This pulse stability together with outstanding intra pulse control, which is unaffected by reflections from the work piece, means that precisely controlled pulses of only a few mJ of pulse energy can be used to weld extremely thin wires of 50 micron diameter or to produce seam welds in thin section metal parts.
The Double Closed Loop feature also allows optimisation of the SHADOW principles (a quasi continuous wave welding process - SHADOW is a trademark of the Fraunhofer Institute for Laser Technology in Aachen, Germany) to the users application.
Using this technique the weld seam is produced by a single laser pulse and using a high traverse speed.
This principle is particularly suitable for micro welding applications, providing high process stability and reducing thermal strain when compared to spot welding.
* Quality from the first pulse - StarPulse uses the proven sweet spot resonator which eliminates problems which may occur if initial pulses have higher energy, to ensure process quality right from the first pulse.
Used in conjunction with the Micro Weld option and direct beam delivery, weld spot diameters of <0.1mm can be achieved, even when using scanning optics with large focal lengths said Rofin-Baasel.
The benefits of this configuration include the ability to process multiple parts over a large area using one fixture and a high speed galvo head.
* Ease of use - simple and efficient operation of the StarPulse system is achieved using the colour TFT touch screen, which has many useful features including the following.
* Graphical user interface and menu selection.
* Integrated online help functions.
* Real time diagram of the actual pulse shape.
* Simple process and parameter setting.
* Removable user panel - for integration into the production system. Request a free brochure from Rofin-Baasel UK ...
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