Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Plasma processes paving the way to high performance cutting tools

12.09.2013
PVD coatings for sophisticated metal cutting operations benefit from the advanced state of development of plasma technology at Fraunhofer FEP.

Metal cutting operations play an especially important role in modern industrial production processes. Based on the tremendous development of multi-axis machine tools, cutting operations represent an ever increasing part of manufacturing process steps.


PVD-coatings for high performance cutting Tools

Instead of preparing specific tools and forms for different work pieces, these are produced in universal machining centers using CAD/CAM control and, in the course of time, a huge amount of cutting inserts.

To realize ever faster production and, at the same time, to guarantee an excellent quality level of the treated workpiece, the development of high performance cutting tools with tailored, wear-resistant coatings has become a key factor for the tool industry.

Multilayered PVD coatings ensure superior wear resistance even under severe cutting conditions. Tailored compositions and architecture of the coatings help to adapt them to tool materials and to the tool geometry used in specific cutting operations, as well as to the work materials to be treated. High power pulse magnetron sputtering (PMS) offers complete flexibility in developing such coatings, be it with respect to the coating material or to the coating architecture. This holds for both high speed and high precision cutting tools.

The pulsed magnetron sputtering process allows deposition of extremely dense and smooth layers free of droplets. By co-sputtering of different materials in a reactive gas atmosphere, a variety of layer compositions, including periodic and aperiodic sequences and graded transitions between individual layers can be synthesized. Single-phase nanocrystalline oxides especially show high thermal stability and chemical inertness. Utilizing advanced pulsed power supplies and a fast feedback control, ternary oxide coatings can also be deposited in long-term, stable deposition processes, resulting in pure single phase coatings. Intrinsic and thermally induced compressive stresses are moderate, and they enhance the wear resistance.

A highly effective plasma pretreatment guarantees excellent adhesion of the coatings. The flange-mounted plasma source LAVOPLAS has been developed to create a dense plasma in a volume corresponding to a typical industrial size batch coating device. It can be used for substrate etching as well as for plasma-activated deposition processes when a high flux of ions is required. The energy of the charged particles can be influenced by a substrate bias voltage to maximize the effect of the preferred ionization or excitation processes. In combination with high power pulsed sputtering, a unique technology sequence for the coating of tools with high-end layer-stacks is available.

Wear-resistant layers are just one example demonstrating the capabilities of plasma and electron beam processes developed at Fraunhofer FEP. You can find more details and a variety of other application examples on our website www.fep.fraunhofer.de, or visit us at the EMO fair in Hannover, at stand no. 54, hall 13, from September 16 – 20, 2013. Together with other Fraunhofer partners we will demonstrate the benefits of advanced plasma techniques for the coating of tools and parts. We are looking forward to welcoming you and discussing your requirements.

Press contact:
Annett Arnold
Fraunhofer-Institut für Elektronenstrahl- und Plasmatechnik FEP | Phone +49 351 2586 452 | Annett.Arnold@fep.fraunhofer.de

Winterbergstraße 28 | 01277 Dresden | Gemany | www.fep.fraunhofer.de

Annett Arnold | Fraunhofer-Institut
Further information:
http://www.fep.fraunhofer.de/components

More articles from Materials Sciences:

nachricht Nanoimprinted hyperlens array: Paving the way for practical super-resolution imaging
24.04.2017 | Pohang University of Science & Technology (POSTECH)

nachricht Wonder material? Novel nanotube structure strengthens thin films for flexible electronics
24.04.2017 | University of Illinois College of Engineering

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

DGIST develops 20 times faster biosensor

24.04.2017 | Physics and Astronomy

Nanoimprinted hyperlens array: Paving the way for practical super-resolution imaging

24.04.2017 | Materials Sciences

Atomic-level motion may drive bacteria's ability to evade immune system defenses

24.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>