:quality(80)/p7i.vogel.de/wcms/1e/c7/1ec74140203f0a05e9dee4827944e73c/0106376243.jpeg)
-
Markets
Latest Articles in "Markets"
Company raises forecast
Contract Manufacturing Index
Steady growth but underlying uncertainty in UK subcontract manufacturing
AMB 2022
Stable trend towards automation in the metal cutting industry
- Events
-
Components
Latest Articles in "Components"
Transparent documentation
Digital customs tariffing made easy with new interface in Partsolutions
K 2022
Preview K 2022
Strack Norma presents new components to increase efficiency in mould making
Mould design
-
Additive Manufacturing
Latest Articles in "Additive Manufacturing "
Basic knowledge
43-million-euro deal
Stratasys to acquire Covestro’s additive manufacturing materials business
Additive manufacturing materials
Open vs Closed Materials Systems: the dichotomy influencing the 3D printing materials market
Printing composite materials
High-tech jewelry made by Laser-Powder Bed Fusion technology
-
Machining Equipment
Latest Articles in "Machining Equipment "
AMB and IMTS 2022
Deburring Start-up
Machining equipment
Multifunctional turning-boring-milling centre on display at IMTS
IMTS 2022
-
Software
Latest Articles in "Software"
Basic knowledge
CAM solutions
Basic Knowledge
Simulation
Six problems to avoid when using simulation in the design process
-
Hot Runners
Latest Articles in "Hot Runners"
- Cutting Tools
-
EDM
Latest Articles in "EDM"
EDM
Motorsport subcontract selects ETG's Mitsubishi EDM to improve productivity
Wire-cut EDM
EDM control system: Smooth surface finish and connectivity included
Machining of large components
EDM Machine
Winbro relies on PP C&A for strategic outsourcing of machine assembly
-
Quality Control
Latest Articles in "Quality Control"
Industrial cleaning technology
Quality Control
AMB 2022
Automation solution for efficient and productive parts cleaning
Micronora
-
Machining Accessories
Latest Articles in "Machining Accessories "
Holding parts for milling
AMB 2022
Vollmer to present full-line range of grinding, eroding and laser machines
Tool grinding
Grinding
-
Surface Treatment & Repair
Latest Articles in "Surface Treatment & Repair "
Product optimization
New injection moulding Consultative Design Service closes critical gap
Specific surface functionality
Surface Finishing
Safe and easy deburring and deflashing with new ceramic tools
-
Materials
Latest Articles in "Materials"
Cannon Ergos collaborates with Boeing
Thermoplastic composite aircraft sidewall panels made of recycled carbon fibre
Green materials
Plastics industry
Plastics processors report sales growth beset by uncertainties
Injection Moulding Cell
Collaborative project: New approach to the production of thin-walled packaging
- Issue Archive
- Service
-
more...
Laser Deposition Welding Fraunhofer breakthrough boosts control of laser material deposition
The institute’s ability to perform 3D characterizations of powder gas streams is said to improve process quality and cut costs.
Related Vendors

Scientists at the Fraunhofer Institute for Laser Technology in Aachen say they can perform qualitative and quantitative characterization of the powder gas stream in laser deposition welding. “For the first time, we have succeeded in developing a measuring procedure that enables us to determine the constancy of the powder mass flow, the symmetry of the powder gas stream, and the position and size of the powder focus,” says Stefan Mann, who is in charge of the project at the institute.
Potential applications of this new measuring technique include all activities in the field of laser deposition welding, in particular engine and power plant manufacturing, tool making and mechanical engineering.
Laser material deposition has become an established processing technique for the repair and manufacture of metal parts and the functionalization of metal surfaces. A nozzle injects a powdered filler material into the melt generated by the laser beam. This produces a layer metallurgically bonded to the workpiece.
It’s a gas, a powder gas that is
The powder gas feed is an important parameter of the overall process and plays a key role in the results, researchers said. Precise knowledge of the powder gas stream forms a necessary component in maintaining process quality, so delivery of powder to the melt pool via the nozzle serves as a crucial element in this process.
It has a major influence on the consumption of powder material, the effectiveness of the gas shielding system used to prevent oxidation, and the quality of the coating layer. In order to ensure consistently high process stability and quality, the scientists say it is necessary to check the processing results at regular intervals because nozzle wear can lead to deviations that change the diameter and position of the powder focus. Orientation of the powder gas stream to the laser beam is of major importance.
Until now, the only way of determining these changes was to use laser metal deposition to obtain reference samples. Correlating these samples with comparative deposited welds revealed the quality of the nozzle.
Stand vom 23.03.2021
Naturally, we always handle your personal data responsibly. Any personal data we receive from you is processed in accordance with applicable data protection legislation. For detailed information please see our privacy policy.
Consent to the use of data for promotional purposes
I hereby consent to Vogel Communications Group GmbH & Co. KG, Max-Planckstr. 7-9, 97082 Würzburg including any affiliated companies according to §§ 15 et seq. AktG (hereafter: Vogel Communications Group) using my e-mail address to send editorial newsletters. A list of all affiliated companies can be found here
Newsletter content may include all products and services of any companies mentioned above, including for example specialist journals and books, events and fairs as well as event-related products and services, print and digital media offers and services such as additional (editorial) newsletters, raffles, lead campaigns, market research both online and offline, specialist webportals and e-learning offers. In case my personal telephone number has also been collected, it may be used for offers of aforementioned products, for services of the companies mentioned above, and market research purposes.
In case I access protected data on Internet portals of Vogel Communications Group including any affiliated companies according to §§ 15 et seq. AktG, I need to provide further data in order to register for the access to such content. In return for this free access to editorial content, my data may be used in accordance with this consent for the purposes stated here.
Right of revocation
I understand that I can revoke my consent at will. My revocation does not change the lawfulness of data processing that was conducted based on my consent leading up to my revocation. One option to declare my revocation is to use the contact form found at https://support.vogel.de. In case I no longer wish to receive certain newsletters, I have subscribed to, I can also click on the unsubscribe link included at the end of a newsletter. Further information regarding my right of revocation and the implementation of it as well as the consequences of my revocation can be found in the data protection declaration, section editorial newsletter.
(ID:33610920)