Werkzeugbeschichtungen für die Trockenbearbeitung

Abele, Eberhard; Schramm, Burkhard; Scheerer, Herbert; Hoche, Holger

doi:10.1002/mawe.200600051

Cited by 3 publications

(3 citation statements)

References 14 publications

(6 reference statements)

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“…However, this reduced the use of cooling lubricants causes a strong increase in the forces applied to the cutting tool in operation. A very effective way to protect the cutting edge from thermal, abrasive and tribo-oxidative attack is by depositing PVD coatings to the tool surface [30,31,32]. As these only a few microns thick coatings significantly govern the effectiveness and productivity of the machining operation it is necessary to optimize these protective coatings.…”

Section: Boron Nitridementioning

confidence: 99%

Modern materials for forming and cutting tools – overview

Berger

Scheerer

Ellermeier³

2010

Materialwissenschaft Werkst

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Materials are an ever-changing field of science with high innovation potential. The knowledge in this subject is fundamental for manufacturing industry. Future products play a decisive role in choosing materials. With new production and processing technologies the quality of materials was improved significantly. Modern heat treatments and high specialized coatings create properties, which lead for example to high speed machining with an excellent productivity. Under these conditions, it is necessary, to develop customized products. This paper presents an overview of the state of the art of modern materials for forming and cutting tools and depicts the investigation on tool steels, cemented carbides, ceramics and materials with very high hardness and describes some selected fields of innovation in these fields.

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Section: Boron Nitridementioning

confidence: 99%

Modern materials for forming and cutting tools – overview

Berger

Scheerer

Ellermeier³

2010

Materialwissenschaft Werkst

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“…Der verringerte Einsatz von Kühl-und Schmieremulsionen hat allerdings zur Folge, dass die auf das Werkzeug wirkenden Belastungen stark zunehmen. Eine sehr gute Möglichkeit, die Schneide vor thermischem, abrasivem und tribo-oxidativem Verschleißangriff zu schützen, stellt die Verwendung von PVD-Beschichtungen dar [2].…”

Section: Einleitung Und Problemstellungunclassified

Verschleißmechanismen von CrAlYN PVD Schichten bei erhöhten Temperaturen

Scheerer¹,

Hoche

Allebrandt

et al. 2007

Materialwissenschaft Werkst

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In der spanenden Fertigung wird aus vielfältigen Gründen zunehmend auf den Einsatz von Kühl-und Over the past years there have been developments in machining operations to replace the use of liquid cooling by dry cutting operations. This results in higher loads for the tools and therefore demands the continuous development of surface coatings. CrAlYN-coatings designed at the Institute for Materials Technology (IfW) in Darmstadt, Germany, show beneficial tribological properties especially at high loads and high temperatures. Samples of different yttrium content have been distinguished and compared to an industrial TiAlN coating. Even though the configuration of the CrAlYN coatings is not yet as optimized as that of the TiAlN, which leaves plenty of room for improvement, the CrAlYN shows comparable and partly superior properties to the TiAlN coating. An increasing yttrium-content of the CrAlYN leads to a more amorphous microstructure and to finer and denser morphology with a smoother surface. The TiAlN on the other hand exhibits a porous, columnar structure. This results in advantages in the wear behavior as well as in the oxidation resistance. Furthermore, a distinct improvement of the adhesion of the layer to the carrier is determinable, which results in higher sustainable loads at the scratch test.

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“…However, this reduced use of cooling lubricants causes a strong increase in the forces applied to the cutting tool in operation. A very effective way to protect the cutting edge from thermal, abrasive and tribo‐oxidative attack is by depositing PVD coatings to the tool surface 2, 3. As these only a few microns thick coatings significantly govern the effectiveness and productivity of the machining operation it is necessary to optimise these protective coatings.…”

Section: Introductionmentioning

confidence: 99%

Wear Mechanisms of (Cr,Al,Y)N PVD Coatings at Elevated Temperatures

Scheerer

Berger

2009

Plasma Processes & Polymers

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Over the past years there have been developments in machining operations to replace the use of liquid cooling by dry cutting operations. This results in higher loads for the tools and therefore demands the continuous development of surface coatings. (Cr,Al,Y)N‐coatings designed at the Institute of Materials Technology in Darmstadt, Germany, show beneficial tribological properties especially at high loads and high temperatures. Samples of different yttrium content have been distinguished and compared to an industrial TiAlN coating. Even though the configuration of the (Cr,Al,Y)N coatings is not yet as optimised as that of the TiAlN, which leaves plenty of room for improvement, the (Cr,Al,Y)N shows comparable and partly superior properties to the TiAlN coating. An increasing yttrium content of the (Cr,Al,Y)N leads to a more amorphous microstructure and to finer and denser morphology with a smoother surface. The TiAlN, in contrast, exhibits a porous, columnar structure. This results in advantages in the wear behaviour as well as in the oxidation resistance. Furthermore, a distinct improvement of the adhesion of the layer to the carrier is determinable, which results in higher sustainable loads at the scratch test.

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Werkzeugbeschichtungen für die Trockenbearbeitung

Cited by 3 publications

References 14 publications

Modern materials for forming and cutting tools – overview

Modern materials for forming and cutting tools – overview

Verschleißmechanismen von CrAlYN PVD Schichten bei erhöhten Temperaturen

Wear Mechanisms of (Cr,Al,Y)N PVD Coatings at Elevated Temperatures

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