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Erweitertes Modell für die Heißrissbildung gewinnt an der ICALEO 2012

Extended model for hot crack formation wins the ICALEO Student Paper Award Contest

October 1, 2012

The new criterion for the hot crack formation during welding especially in edge proximity developed by Peter Stritt within the framework of his PhD thesis at the GSaME has been chosen for the 1st Place of the Student Paper Award of this year's ICALEO. As an extension of the previous models it was shown that in addition to the multidirectional solidification state and local strain the nearby stress distribution is also an important criterion for the occurrence of hot cracking.

Peter Stritt et al. "New Hot Cracking Criterion for Laser Welding in Close-Edge Position", ICALEO, 23.-27. September 2012, Anaheim, USA

Contact person: Dr. Rudolf Weber

SLT 2024: The programme is now online!

Student excursion to Trumpf in Ditzingen

Student excursion to Mercedes-Benz in Untertürkheim

Start of the DFG project HeriNEsp II

Photo: IFSW

SLT 2024: "Call for Papers" is open!

Award: Publication prize of the University of Stuttgart

Photo: IFSW

Award: Optics Continuum Best Paper Prize

Photo: IFSW

High-precision measurement setup for the analysis of the spatial uniformity of the period of optical gratings

Photo: IFSW

Successful LiM 2023

Photo: WLT

Inaugural lecture of Prof. Michalowski: when machines become experts

Photo: Regine Brendel

Test campaign at the particle accelerator in Hamburg/Germany

Photo: IFSW

The society of the former doctoral candidates of the IFSW awards price for the best master thesis 2023

Photo: IFSW

Ceremonial farewell to apl. Prof. Dr. Rudolf Weber

Photo: Johannes Wahl

Change of baton at the IFSW: Christian Hagenlocher succeeds Rudolf Weber

Photo: Christian Hagenlocher

Additive manufacturing of graded flow structures for PEM fuel cells

Photo: IFSW

Project start: Hairpin welding

Photo: IFSW

Start of the ICM project AddTemp

Photo: IFSW

New Head of the "Systems Engineering" Business Unit

Photo: Tobias Menold

Successful project meeting of the process development department of the IFSW at Novelis

Prof. John Powell to be Visiting Professor at ICM since January 2023

Photo: John Powell

Highly dynamic beam shaping with Civan's OPA6 laser at IFSW

Photo: IFSW

Three years of InnovationCampus Future Mobility

Photo: Universität Stuttgart, ICM, Uli Regenscheit

TryScience workshop "Laser - the tool of the future"

Photo: IFSW

New professorship for "Laser Technology in Manufacturing" established

Photo: Andreas Michalowski

4th edition of the textbook "Materialbearbeitung mit Laser" published

Photo: Springer Vieweg

X-ray videography of ultrashort pulse laser material processing at the DESY

Photo: IFSW

Day of Science on 25 June 2022

Photo: University of Stuttgart

The society of the former doctoral candidates of the IFSW awards price for the best master thesis 2022

Photo: IFSW

Girls' Day on 28 April 2022 successfully held at the IFSW

Photo: Alexander Peter/IFSW

Conference SLT 2022 from 21 until 22 June

First promising hollow-core fibers from the in-house fiber production at the IFSW

Photo: IFSW

Awarding of the title "Extraordinary Professor" to Priv.-Doz. Dr. Rudolf Weber

Photo: Max Kovalenko

Made in Science - Podcast of the University of Stuttgart with Prof. Thomas Graf

Photo: Max Kovalenko

TryScience workshop successfully held at the IFSW

Photo: Heidi-Maria Götz

InnovationChallenge Mobility and Production celebrates its premiere

Photo: kiquebg / pixabay.com

X-ray imaging of laser materials processing at the German Electron Synchrotron

Photo: IFSW

Corona graduate program of the ICM successfully launched

Photo: Amadeus Bramsiepe, KIT

The society of the former doctoral candidates of the IFSW awards price for the best master thesis 2021

Photo: IFSW

New research project ADDSUB starting in summer 2021

Photo: IFSW

Junior Research Group Advanced Manufacturing started

Photo: Michael Jarwitz

Corona graduate program within the framework of the ICM

Photo: Sandra Kauffmann-Weiß

Web conference: Photonics as an innovation driver in Baden-Württemberg

Photo: www.freepik.com

Girls' Day on 22th April 2021

Photo: www.girls-day.de

European research project TresClean successfully completed

Photo: IFSW

New record in average power of ultrafast lasers with emission in the visible spectral range

Photo: IFSW

Internet presence of the InnovationCampus Future Mobility (ICM)

Photo: NIESYTO Design

IFSW employee Dr. Christian Hagenlocher was awarded with the WLT Prize 2020

Photo: Christian Hagenlocher

Announcement of a new W3 professorship

Photo: https://icon-icons.com/

University publication prize awarded

SPECTARIS Forum Photonics 4.0: Experts dared to look ahead

Photo: Regina Sablotny

Project "StrahlClosedLoop" started

Photo: IFSW

New IFSW internet presence

The IFSW has achieved another important milestone in the HIPERDIAS project

World's first mass flambé of Crème Brûlée with a CO2 laser

Photo: IFSW

The IFSW has achieved an important milestone in the HIPERDIAS project

Network meeting of "Women in Photonics" at the IFSW

Photo: IFSW

Presentation of LightPulse LASER PRECISION

Photo: LightPulse

World’s first application of a thin-disk laser for melting raclette cheese

Photo: IFSW

Thermally induced focal shift in laser optics

New publications on heat accumulation during ultra-short pulsed laser processing

Transfer of a high-speed streak camera to the Deutsches Museum in Munich

Photo: IFSW

Day of Science on 30 June 2018

Highly Efficient kW-Class Thin-Disk Laser with Radial Polarization

First Demonstration of Mode-Locked and Radially-Polarized Thin-Disk Laser

High-speed shadowgraphy generates process understanding of the ablation process with burst pulses

Bicycle boxes enthusiastically accepted

Photo: IFSW

Electrolytic etching and polishing at the metallography department

Controlled and Automated Laser Ablation Enables Reliable Manufacturing of Precise Parts

Thin-disk multipass amplifier for ultrafast laser pulses

The society of the former doctoral candidates of the IFSW awards price for the best master thesis 2017

First demonstration of Ti:sapphire thin-disk oscillator

Modernization of the control of the Kugler-Microbase processing station

Flow speed of the ablation vapors during laser drilling of CFRP

Foundation of MarTec Photonics

Photo: MarTec Photonics

Surface functionalization of stainless steel by laser material processing

Record Efficiency with a kW-Class CW Frequency-Doubled Thin-disk Laser

Photo: Max Kovalenko

Day of Science on 18 June 2016

SESAM-modelocked thin-disk lasers

New Ultrafast Laser Record: 1.9 kW of Average Power

New H2020 project for sub-ps kW-class thin-disk lasers

Photo: Max Kovalenko

Volkher Onuseit heads the new department of „System Engineering“

Record „green“ thin-disk laser: 400W of output power

Photo: Max Kovalenko

Thin-disk multipass amplifier enables record output powers

Multi-pass thin-disk laser amplifier generates record output powers

New staff member for Public Relations and Marketing

Photo: Heidi-Maria Götz

Heat accumulation effects define the process window for laser cutting of CFRP

Good Quality at High Productivity

The Threshold for Deep-Penetration Laser Welding Revisited

Welding of Copper with 16 kW of Laser Power – The Dancing Capillary

New edition of the book "Laser - Grundlagen der Laserstrahlerzeugung"

More funding for community industrial research

Supermicrofibers Produced with Laser-Drilled Spinnerets at the Hannover Fair 2014

Quantum Leap in Laser-Based Micro Materials Processing

New edition of the book "Laser in der Fertigung"

First dielectric Thin-Disk Laser With Direct Emission in the Visible Spectral Range

Broadband Pulse Compressor Gratings

How black is CFRP?

New Thin-Disk Laser Record: 1.1 kW, 1.4 mJ / 7 ps, 800 kHz, M2 < 1.25

Thin Disk Laser wins major EU support

Amplification of cylindrically polarized laser beams in single crystal fibers

Competent Distributor for the Thin-Disk Laser Modules in Japan

Prof. Graf elected new vice rector for knowledge and technology transfer

Proton size puzzle reinforced!

New Thin-Disk Laser Record: 815 W, M2 < 1.4

Breakthrough Grating-Waveguide-Structures

First Demonstration of an Ultrafast Yb:SSO Thin-Disk Laser

Extended model for hot crack formation wins the ICALEO Student Paper Award Contest

3rd Berthold Leibinger Innovation Prize 2012 won

Excellent Survey of the SLT 2012

UKP Yb:CAlGO thin-disk laser brought into use

Lecture Qualification of Dr. Abdou Ahmed

Real-Time Laser Welding Control Wins the Steel Innovation Award

New Thin-Disk Laser Record: 750 W, M² = 1.5, ηopt = 58%

The World´s Thinnest Cellulose Supermicrofibers

250 W single crystal fiber Yb:YAG laser

Narrow line width thin-disk laser with high polarization purity

New Gratings for Intra-Cavity Generation of Azimuthal Polarisation

First Demonstration of a Yb:Sc2SiO5 Thin-Disk Laser

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