Joint project has goal of laser welding control

Sept. 7, 2015
A team of scientists has set out to control the welding process as much as possible, assessing different measuring methods.

Hannover, Germany - One of the challenges in laser welding steel with aluminum is avoiding hard and brittle intermetallic phases in the welding seam. These phases can occur easily, as iron and aluminum do not combine well. So,
scientists at Laser Zentrum Hannover (LZH) and project partners have set out to control the welding process as much as possible, assessing different measuring methods.
The team of scientists will test spectroscopic control of welding depth, which measures the emissions of the plasma. This control is already being evaluated at LZH for flat welds, and will now be expanded to 3D structures.

Laser welding of steel and aluminum. (Photo: LZH)

Also, the scientists are testing a sensor made by project partner Precitec GmbH & Co. KG that can directly measure the depth of the keyhole (vapor capillary). Additionally, they are examining a thermal imaging process from InfraTec GmbH, as well as a trailing nondestructive sample analysis using active thermal imaging from Innovationsgesellschaft für fortgeschrittene Produktionssysteme in der Fahrzeugindustrie mbH (inpro).

The following companies are working together in the joint project: Volkswagen AG, Scherdel Marienberg GmbH, MATFEM Partnerschaft Dr. Gese & Oberhofer, LUNOVU Integrated Laser Solutions GmbH, Brandenburg University of Technology, and Fraunhofer-Institut für Werkstoff- und Strahltechnik (Fraunhofer IWS). Associated partners include TRUMPF Laser GmbH, ASTOR Schneidwerkzeuge GmbH, ThyssenKrupp Steel Europe AG, Bond-Laminates GmbH, and Sapa Aluminum Profile.

For more information, please visit www.lzh.de.

Sponsored Recommendations

Request a quote: Micro 3D Printed Part or microArch micro-precision 3D printers

April 11, 2024
See the results for yourself! We'll print a benchmark part so that you can assess our quality. Just send us your file and we'll get to work.

Request a free Micro 3D Printed sample part

April 11, 2024
The best way to understand the part quality we can achieve is by seeing it first-hand. Request a free 3D printed high-precision sample part.

How to Tune Servo Systems: The Basics

April 10, 2024
Learn how to tune a servo system using frequency-based tools to meet system specifications by watching our webinar!

Precision Motion Control for Sample Manipulation in Ultra-High Resolution Tomography

April 10, 2024
Learn the critical items that designers and engineers must consider when attempting to achieve reliable ultra-high resolution tomography results here!

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!