Dr. rer. nat. Dirk Petring

c/o Fraunhofer ILT
Steinbachstr. 15
52074 Aachen
Germany

Tel. +49 162 49 162 01
contact@calcut.de
www.calcut.de

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Track record of Dirk Petring and his team at ILT

1986

Establishment of the Cutting Group

1987

Oxide-free and burr-free laser beam fusion cutting of up to 6 mm stainless steel

1988

Theory and practical verification of power balance and absorption distribution

1988

Schlieren-diagnostic identification of supersonic effects within cut kerfs

1989

Oxide-free and burr-free laser beam fusion cutting of up to 15 mm stainless steel

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 0.27 mm thick electrical steel with 100 m/min (THYSSEN)

1991

Laser machining of steel cavities by Lasercaving (MAHO)

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 doctoral thesis “Application oriented modelling of laser beam cutting for computer aided process optimization“

1994

Invention of the Autonomous Nozzle

1995

Earning a PhD for his doctoral thesis

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 of laser process closed-loop control by modulation response signals

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)

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 closed-loop controlled synchronized modulation of laser-arc hybrid welding

2006

Industrial implementation of laser combi-head for cutting and welding (LASERFACT)

2008

Explanation of the thermodynamics of the oxidation reaction in laser-oxygen cutting

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

2013

Multi-pass scan strategy to minimize thermal damage in laser cutting of composites

2017

In-situ-visualization of multiple reflections on the cut flank during fiber laser cutting

2019

Invention of the laser cutting whistle

2023

Optical cutting process control via AI-inferencing with classification accuracy 0.98

2023

Split-up and handover of the Group Macro-Joining & Cutting in two separate units