Dr. rer. nat.
Dirk Petring
Formerly:
Fraunhofer ILT
52074 Aachen, Germany
Now private:
52134 Herzogenrath, Germany
Tel. +49 1624916201
dirk.petring@calcut.de
www.calcut.de
.
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Celebrating the Sake Barrel Ceremony Kagami Biraki at the side of Mitsuo Okamoto, President and CEO of AMADA CO., during the Grand Opening of AMADA Technical Center (2013).
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Shaking hands with Yoshiharu Inaba, Chairman and CEO of FANUC Corporation, on the rooftop of FANUC HQ with Mount Fuji in the background (2016).
. | Track record |
|---|---|
1986 | Establishment of the Cutting Group at Fraunhofer ILT |
1987 | Oxide-free and burr-free laser beam fusion cutting of up to 6 mm stainless steel ((PDF) Machining materials with laser radiation. Part 10: Cutting metallic materials with high-performance CO2 lasers) |
1988 | Theory and practical verification of power balance and absorption distribution for laser beam fusion cutting and laser-oxygen cutting ((PDF) The absorption distribution as a variable property during laser beam cutting) |
1988 | Schlieren-diagnostic identification of supersonic effects within cut kerfs ((PDF) Machining materials with laser radiation. Part 10: Cutting metallic materials with high-performance CO2 lasers) |
1989 | Oxide-free and burr-free laser beam fusion cutting of up to 15 mm stainless steel ((PDF) Laser Beam Cutting of Highly Alloyed Thick Section Steels) |
1989 | Promotion of the Cutting Group to the Department Cutting |
1991 | Laboratory prototype of a laser slitting line with 2 lasers and cutting heads (GEORG) |
1991 | Laser slitting of 0.25 mm thick electrical steel with 100 m/min (THYSSEN) ((PDF) Plasma effects in laser beam cutting) |
1991 | Laser machining of steel cavities by Lasercaving (MAHO) (Verfahrensentwicklungen zum definierten Formabtrag mit Laserstrahlung) |
1993 | Industrial laser beam fusion cutting up to 18mm stainless steel (THYSSEN) |
1993 | Completion of CALCut as steady-state 3D-model and simulation of laser cutting |
1993 | Submission of the PhD dissertation “Application oriented modelling of laser beam cutting for computer aided process optimization“ Anwendungsorientierte Modellierung des Laserstrahlschneidens zur rechnergestützten Prozessoptimierung (in German) |
1994 | Invention and Patent Application of the Autonomous Nozzle ((PDF) DÜSENANORDNUNG FÜR DAS LASERSTRAHLSCHNEIDEN … NOZZLE ASSEMBLY FOR LASER BEAM CUTTING … ENSEMBLE BUSE POUR LE DECOUPAGE AU LASER (e.g. Autonomous Nozzle)) |
1995 | PhD certificate from the RWTH Aachen University |
1996 | Laser beam cutting and welding of steel plates at German shipyard (Blohm+Voss) |
1996 | Laser beam fusion cutting of 40 mm stainless steel plates for the ITER project |
1996 | Invention and Patent Application of laser process closed-loop control by modulation response signals ((PDF) Verfahren zum Bearbeiten von Werkstücken mit Laserstrahlung (e.g. PRE – Process Response Evaluation; MILM – Minimally Invasive Laser Modulation)) |
1998 | Industrial pilot line of a laser slitting line with 8 lasers and cutting heads (GEORG) |
1998 | Expansion of the Department Cutting to the Department Cutting & Joining |
1999 | Deep penetration welding of steel with diode laser (DILAS) ((PDF) Tiefschweißen mit Hochleistungsdiodenlasern (wissenschaft.de 16. Sept. 1999)) |
2001 | Laser-GMA butt-joint hybrid welding of 15 mm mild steel in a single pass |
2002 | Lloyd’s Register Certification laser-GMA hybrid welding stainless steel tubes (RIVIT) |
2002 | Invention and Patent Application of closed-loop controlled synchronized modulation of laser-arc hybrid welding ((PDF) Laser-Materialbearbeitungsverfahren und -vorrichtung mit hybriden Prozessen … Laser material machining process and device using hybrid processes … Procede et disposition d’usinage au laser de materiaux a I’aide de process hybrides (e.g. HySy – Hybrid Laser-Arc Welding with Synchronized Modulation)) |
2006 | Industrial implementation of laser combi-head for cutting and welding (PDF) One head does it all (LASERFACT) |
2008 | Extended explanation of the thermodynamics of the oxidation reaction in laser-oxygen cutting ((PDF) Laser–oxygen cutting of mild steel: the thermodynamics of the oxidation reaction) |
2008 | High-speed cutting 1mm UHS steel with 4 kW fiber laser at 100 m/min (HONDA) |
2010 | Downsizing of the Department to the Group Macro-Joining & Cutting |
2012 | Clarification of peculiarities of the fiber laser cutting process ((PDF) Some questions, answers and open issues in laser cutting (The Laser User, AILU)) |
2013 | Multi-pass scan strategy to minimize thermal damage in laser cutting of composites ((PDF) High Power Laser Cutting of Fiber Reinforced Thermoplastic Polymers with cw- and Pulsed Lasers) |
2017 | In-situ-visualization of multiple reflections on the cut flank during fiber laser cutting ((PDF) In situ visualization of multiple reflections on the cut flank during laser cutting with 1 μm wavelength) |
2019 | Invention and Patent Application of the laser cutting whistle ((PDF) VERFAHREN ZUM BOHREN ODER SCHNEIDEN DURCH ABTRAGEN VON SCHMELZFÄHIGEM ODER VERDAMPFUNGSFÄHIGEM MATERIAL EINES WERKSTÜCKS … METHOD FOR BORING OR CUTTING BY REMOVING MELTABLE OR VAPOURISABLE MATERIAL OF A WORKPIECE … PROCÉDÉ DE PERÇAGE OU DE DÉCOUPE PAR ENLÈVEMENT D’UN MATÉRIAU, POUVANT FONDRE OU POUVANT S’ÉVAPORER, D’UNE PIÈCE À USINER (The Cutting Whistle)) |
2023 | Optical cutting process control via AI-inferencing with classification accuracy 0.98 (PDF) LASER CUTTING AND WELDING FASTER AND BETTER THANKS TO ARTIFICIAL INTELLIGENCE |
2025 | After final retirement enjoying independence, experience and a free look ahead: Dirk Petring on ResearchGate |
CALCut is a model and simulation tool self-developed and privately owned by Dr. Dirk Petring since 1993. It has been used exclusively for Fraunhofer Institute for Laser Technology ILT 1993-2023 where it has been verified and approved in numerous industrial projects.