So funktioniert der Wasser-Laser. Hoch- präzisions-Bearbeitung mit dem „kalten“ Wasser-Laser. Das von einem Schweizer Unternehmen entwickelte und patentierte LMJ-Verfahren beruht -bildlich gesprochen- auf der Kombination von Feuer und Wasser.
By Klaus Vollrath
The First Coupling of a Laser Beam to a Water Jet
How a miniature dental hand tool started a revolution in cool laser machining. Starting with a dental tool developed in a Swiss laboratory in 1993, this invention has fostered high-precision laser machining in the aviation, diamond and semiconductor industries amongst others.
By Nitin Shankar
DaVinci Diamond Factory is an automated laser cutting and shaping system for diamonds. Rough diamonds can be transformed into brilliant cut diamonds with up to 57 facets in a single process. The DaVinci system also allows fancy shaping.
Watch this video to see how Laser MicroJet® (LMJ) is used to 3D cut a watch case from a aluminium block.
Watch this video to see how Laser MicroJet® (LMJ) is used to cut tool inserts for a rotation tool. Polycrystalline diamond (PCD) on tungsten carbide (WC); Thickness: 2mm (0.5mm PCD and 1.5mm WC); Effective processing speed: above 4.5mm/min; Clearance angle: from 1 to 45°.
Watch this video to see how Laser MicroJet® (LMJ) is used to cut 45 mm long slots into silicon. Material: Silicon; Thickness: 7.7 mm; Effective processing speed: under 2 min per slot. Slots were cut under 2 minutes on average. Waste parts fall down and can be recycled.
Watch this video to see how Laser MicroJet® (LMJ) is used to machine a chess figure (pawn) using laser turning process. Complex profile followed while workpiece rotates at 400 rpm; Aluminium rod: 3 mm diameter; Ra (roughness): 0.4 μm.
Chaque année, quelque 900 étudiants de l’EPFL passent quelques semaines – voir quelques mois – en entreprise pour un stage obligatoire, dont la validation est nécessaire pour obtenir leur diplôme. Une collaboration gagnante autant pour le stagiaire que l’employeur.
By Julien Robyr
Cool Laser for Cutting Diamonds
Laser MicroJet combines the advantage of both laser cutting and water cooling in one operation. Raw diamonds can contain inclusions in the form of non-diamond hybrid materials or air bubbles, making them susceptible to damage from intense heat during laser cutting.
By Nitin Shankar
Allzweck-Laser für Uhrenteile
Wegen ihrer besonderen Fähigkeiten bei der Bearbeitung von Mikrokomponenten finden die Synova LCS (Laser Cutting System) Laserschneidmaschinen-Familie Einsatz bei schweizerischen Uhrenherstellern wie Cartier, Hublot und Vacheron-Constantin.
By Nitin Shankar