Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Milestone in circular saw technology


Researchers at Fraunhofer IPA have developed an innovative procedure for internally cooling disc-shaped, rotating cutting tools. With the support of pertinent mechanical saw and sawing tool manufacturers, the result is a lightweight, upgradable and cost-effective concept that represents a milestone in the evolution of circular saws.

When cutting materials, high temperatures occur at the site of the cut that can negatively affect the cut and the workpiece, as well as shortening the tool’s service life. One possibility for directing the cooling lubricant at the cutting area is internal cooling within the tool, which sees the cooling lubricant directed through internal channels in the tool directly to the cutting area.

Lathes, drilling and milling tools with internal cooling.

Walter AG

Principle of needs-oriented cooling lubricant supply.

Fraunhofer IPA

While this process has been used successfully for lathes as well as milling, grinding and drilling tools for some years now, there is no comparable internal coolant system specifically bringing value added to cutting workpieces made from high-alloy stainless steels, and titanium-based or nickel-based alloys.

Now, for the first time, Fraunhofer IPA has been able to integrate channels into the saw blade, meaning that internally cooled tools can be created. The idea to adapt internal tool cooling systems to include disc-shaped tools such as circular saw blades has enormous potential and has met with a great deal of interest in the industry. One significant technological advantage is the possibility to process materials that were previously not suitable for cutting with a saw.

Fraunhofer IPA project leader Christoph Birenbaum, an Engineering graduate, explains: »The project idea with this innovation appeals to companies as end users that use high-strength stainless steels. Using cooling lubricant directly at the cutting area not only lubricates the sawing process but also reduces heat, meaning that longer working times and above all higher cut speeds can be achieved. This increases productivity significantly.«

Mechanical saw manufacturers also benefit from the innovation due to the appreciation of their machinery, and sawing tool manufacturers due to the larger product portfolio. In addition, there is huge savings potential in terms of the cooling lubricants used. For end users, this reduces additional costs and environmental impact. Exploratory talks are currently taking place to develop the internal cooling system for series production.

Press communication
Jörg-Dieter Walz | Telephone +49 711 970-1667 |

Specialist contact
Dr.-Ing. Christoph Birenbaum | Telephone +49 711 970-1536 |

Weitere Informationen:

Jörg Walz | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA

More articles from Power and Electrical Engineering:

nachricht Neutrons pave the way to accelerated production of lithium-ion cells
20.03.2018 | Technische Universität München

nachricht Monocrystalline silicon thin film for cost-cutting solar cells with 10-times faster growth rate fabricated
16.03.2018 | Tokyo Institute of Technology

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Researchers at Fraunhofer monitor re-entry of Chinese space station Tiangong-1

In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.

Following the loss of radio contact with Tiangong-1 in 2016 and due to the low orbital height, it is now inevitable that the Chinese space station will...

Im Focus: Alliance „OLED Licht Forum“ – Key partner for OLED lighting solutions

Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.

They are united in their passion for OLED (organic light emitting diodes) lighting with all of its unique facets and application possibilities. Thus experts in...

Im Focus: Mars' oceans formed early, possibly aided by massive volcanic eruptions

Oceans formed before Tharsis and evolved together, shaping climate history of Mars

A new scenario seeking to explain how Mars' putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million...

Im Focus: Tiny implants for cells are functional in vivo

For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.

In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...

Im Focus: Locomotion control with photopigments

Researchers from Göttingen University discover additional function of opsins

Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...

All Focus news of the innovation-report >>>



Industry & Economy
Event News

Virtual reality conference comes to Reutlingen

19.03.2018 | Event News

Ultrafast Wireless and Chip Design at the DATE Conference in Dresden

16.03.2018 | Event News

International Tinnitus Conference of the Tinnitus Research Initiative in Regensburg

13.03.2018 | Event News

Latest News

TRAPPIST-1 planets provide clues to the nature of habitable worlds

21.03.2018 | Physics and Astronomy

The search for dark matter widens

21.03.2018 | Materials Sciences

Natural enemies reduce pesticide use

21.03.2018 | Life Sciences

Science & Research
Overview of more VideoLinks >>>