K
Kyriakos Efstathiou
Researcher at Aristotle University of Thessaloniki
Publications - 36
Citations - 761
Kyriakos Efstathiou is an academic researcher from Aristotle University of Thessaloniki. The author has contributed to research in topics: Cemented carbide & Coating. The author has an hindex of 15, co-authored 35 publications receiving 712 citations. Previous affiliations of Kyriakos Efstathiou include Fraunhofer Society.
Papers
More filters
Journal ArticleDOI
Determination of the chip geometry, cutting force and roughness in free form surfaces finishing milling, with ball end tools
TL;DR: In this article, the workpiece roughness in multiaxis finishing milling with ball end tools is predicted by means of the computer supported milling simulation algorithm "ballmill " by considering the individual movements of the cutting tool and the work piece due to the milling kinematics, the undeformed chip geometry, the cutting force components, the tool deflections and the final surface topomorphy expected.
Journal ArticleDOI
Improvement of PVD coated inserts cutting performance, through appropriate mechanical treatments of substrate and coating surface
Konstantinos-Dionysios Bouzakis,Nikolaos Michailidis,S. Hadjiyiannis,Kyriakos Efstathiou,Eleni Pavlidou,Georg Erkens,S. Rambadt,I. Wirth +7 more
TL;DR: In this paper, the wear behavior of coated cemented carbides (HM) inserts with various substrate and coating surface mechanical treatments were investigated experimentally in milling and analytically through a finite-elements method (FEM) simulation of the cutting process.
Journal ArticleDOI
Properties and performance of high aluminum containing (Ti,Al)N based supernitride coatings in innovative cutting applications
Georg Erkens,R. Cremer,T. Hamoudi,Konstantinos-Dionysios Bouzakis,I. Mirisidis,S. Hadjiyiannis,Georgios Skordaris,A. Asimakopoulos,S. Kombogiannis,J. Anastopoulos,Kyriakos Efstathiou +10 more
TL;DR: In this article, a new generation of high performance hard coatings, the supernitrides, was developed based on a unique plasma enhanced sputtering technology, which are characterized by a dense, nano-crystalline or nano-layered structure and a high content of oxide forming elements.
Journal ArticleDOI
The effect of coating thickness, mechanical strength and hardness properties on the milling performance of PVD coated cemented carbides inserts
Konstantinos-Dionysios Bouzakis,S. Hadjiyiannis,Georgios Skordaris,I. Mirisidis,Nikolaos Michailidis,Kyriakos Efstathiou,Eleni Pavlidou,Georg Erkens,R. Cremer,S. Rambadt,I. Wirth +10 more
TL;DR: In this paper, the effect of coating hardness and strength on the cutting performance in milling, (Ti46Al54)N films having thickness from 3 to 10 μm and varying hardness were deposited on cemented carbides inserts.
Journal ArticleDOI
Optimisation of the cutting edge roundness and its manufacturing procedures of cemented carbide inserts, to improve their milling performance after a PVD coating deposition
Konstantinos-Dionysios Bouzakis,Nikolaos Michailidis,Georgios Skordaris,S. Kombogiannis,S. Hadjiyiannis,Kyriakos Efstathiou,Eleni Pavlidou,Georg Erkens,S. Rambadt,I. Wirth +9 more
TL;DR: In this article, the fatigue and wear behavior of PVD coatings on carbide inserts with various cutting edge radii were investigated experimentally and analytically in milling.