scholarly journals Tribological and Wear Performance of Nanocomposite PVD Hard Coatings Deposited on Aluminum Die Casting Tool

Materials ◽  
2018 ◽  
Vol 11 (3) ◽  
pp. 358 ◽  
Author(s):  
Jose Paiva ◽  
German Fox-Rabinovich ◽  
Edinei Locks Junior ◽  
Pietro Stolf ◽  
Yassmin Seid Ahmed ◽  
...  
Keyword(s):  
Die Casting ◽  
Hard Coatings ◽  
Wear Performance ◽  
Casting Tool

Hard coatings to prevent the washout phenomena in high pressure die casting tools

2006 ◽  
Vol 151 (3) ◽  
pp. 109-112
Author(s):  
D. Ugues ◽  
E. Torres ◽  
M. Perucca ◽  
M. Albertinazzi ◽  
M. Rosso
Keyword(s):  
High Pressure ◽  
Die Casting ◽  
Hard Coatings ◽  
High Pressure Die Casting ◽  
Pressure Die Casting

Erratum to: Frictional and wear performance of hard coatings during machining of superduplex stainless steel

2017 ◽  
Vol 92 (1-4) ◽  
pp. 433-433 ◽  
Author(s):  
José M. F. de Paiva ◽  
Ricardo D. Torres ◽  
Fred L. Amorim ◽  
Danielle Covelli ◽  
Mohammed Tauhiduzzaman ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Hard Coatings ◽  
Wear Performance ◽  
Superduplex Stainless Steel

scholarly journals Investigation of the Temperature-Related Wear Performance of Hard Nanostructured Coatings Deposited on a S600 High Speed Steel

Metals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 332 ◽  
Author(s):  
Eleonora Santecchia ◽  
Marcello Cabibbo ◽  
Abdel Hamouda ◽  
Farayi Musharavati ◽  
Anton Popelka ◽  
...  
Keyword(s):  
Physical Vapor Deposition ◽  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Hard Coatings ◽  
Wear Performance ◽  
Metal Machining ◽  
Pin On Disc ◽  
The Coefficient Of Friction ◽  
Orthopedic Prosthesis

Thin hard coatings are widely known as key elements in many industrial fields, from equipment for metal machining to dental implants and orthopedic prosthesis. When it comes to machining and cutting tools, thin hard coatings are crucial for decreasing the coefficient of friction (COF) and for protecting tools against oxidation. The aim of this work was to evaluate the tribological performance of two commercially available thin hard coatings deposited by physical vapor deposition (PVD) on a high speed tool steel (S600) under extreme working conditions. For this purpose, pin-on-disc wear tests were carried out either at room temperature (293 K) or at high temperature (873 K) against alumina (Al2O3) balls. Two thin hard nitrogen-rich coatings were considered: a multilayer AlTiCrN and a superlattice (nanolayered) CrN/NbN. The surface and microstructure characterization were performed by optical profilometry, field-emission gun scanning electron microscopy (FEGSEM), and energy dispersive spectroscopy (EDS).

Effect of the Technological Parameters on the Thermal Conditions of Die-Casting Tool

2013 ◽  
Vol 752 ◽  
pp. 183-192 ◽  
Author(s):  
Jenő Dúl ◽  
Zsolt Leskó ◽  
Borbála Juhász
Keyword(s):  
Cooling System ◽  
Die Casting ◽  
Thermal Conditions ◽  
Technological Parameters ◽  
Cooling Systems ◽  
Casting Tool ◽  
Casting Cycle ◽  
And Function ◽  
The Heat Balance ◽  
Short Times

The heat balance of a casting cycle can be ensured in short times by the annealing of the die-casting tool, by which the well-constructed and well-functioned cooling system can enhance productivity. Incorrect cooling, however, can lead to heat unbalance in the die casting tool, thus causing the destruction of casting quality, reduction of the lifetime of die casting tool and irreversible production-reduction. Beside the theoretical examination of construction and function of cooling system, the evaluation of the effectively removed heat quantities has great importance. The paper presents an analysis of the function of the cooling system of a scraggy thin casting of AlSi9Cu3 alloy, in case of different cooling parameters. Based on the measured results of the inlet and outlet temperatures and the volume flow of the cooling agents, the heat quantities belonging to the cooling circles are determined and an optimization of the cooling system is proposed. The findings of the analysis can be utilized for the construction and optimum operation of die-casting cooling systems.

Optimization of plasma-assisted chemical vapour deposition hard coatings for their application in aluminium die-casting

2001 ◽  
Vol 142-144 ◽  
pp. 1005-1011 ◽  
Author(s):  
C. Mitterer ◽  
F. Holler ◽  
C. Lugmair ◽  
R. Nöbauer ◽  
R. Kullmer ◽  
...  
Keyword(s):  
Chemical Vapour Deposition ◽  
Vapour Deposition ◽  
Die Casting ◽  
Chemical Vapour ◽  
Hard Coatings

Impact Wear Performance of Thin Hard Coatings on TiC Cermets

2011 ◽  
pp. 404-419
Author(s):  
Renno Veinthal ◽  
Fjodor Sergejev ◽  
Can Emrah Yaldiz ◽  
Valdek Mikli
Keyword(s):  
Hard Coatings ◽  
Impact Wear ◽  
Wear Performance

Impact Wear Performance of Thin Hard Coatings on TiC Cermets

2011 ◽  
pp. 404-419
Author(s):  
Renno Veinthal ◽  
Fjodor Sergejev ◽  
Can Emrah Yaldiz ◽  
Valdek Mikli
Keyword(s):  
Hard Coatings ◽  
Impact Wear ◽  
Wear Performance

Frictional and wear performance of hard coatings during machining of superduplex stainless steel

2017 ◽  
Vol 92 (1-4) ◽  
pp. 423-432 ◽  
Author(s):  
José M. F. de Paiva ◽  
Ricardo D. Torres ◽  
Fred L. Amorim ◽  
Danielle Covelli ◽  
Mohammed Tauhiduzzaman ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Hard Coatings ◽  
Wear Performance ◽  
Superduplex Stainless Steel

Development of a High Pressure Die Casting Tool for Partial Integration of Glass Fiber Structures

2017 ◽  
Vol 742 ◽  
pp. 520-526 ◽  
Author(s):  
Jan Clausen ◽  
Milan Kelch ◽  
Franz Josef Wöstmann ◽  
Matthias Busse
Keyword(s):  
High Pressure ◽  
Glass Fiber ◽  
Die Casting ◽  
Casting Process ◽  
High Pressure Die Casting ◽  
Resin Impregnation ◽  
Wide Range ◽  
Casting Tool ◽  
Die Casting Process ◽  
Pressure Die Casting

Due to the growing demand for lightweight solutions in a wide range of industries, the selection and combination of various materials is becoming more and more important. As a result, the need for suitable joining technologies is increasing along with it. Within the DFG research group "Schwarz-Silber" ("black-silver"), Fraunhofer IFAM is investigating so-called transitional structures in cooperation with the University of Bremen. In this process, glass fiber structures are integrated into aluminum by a high pressure die casting process. These structures are used for the electrochemical insulation between aluminum and carbon fiber textiles, which are connected by textile processes in a subsequent production step. A solid hybrid structure is finally achieved through a resin-impregnation process. The key challenges are the positioning, pre-tensioning and infiltration of the glass fiber structures within the high pressure die casting process. In order to meet these challenges, a customized die casting tool was developed within the project. With the aid of mold-filling simulations, the die system of the die casting tool was optimized to achieve better infiltration of the fiber bundles and to additionally support the position of the glass fibers in the casting process. After the design of the molding tool, the implementation was carried out in collaboration with a toolmaker. In subsequent, up-to-date investigations, the positioning and infiltration of different variants of glass fiber structures is evaluated. The results are compared with previous attempts to position and infiltrate the glass fiber structures to assess the effect of the optimized newly designed tool.

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