Effect of Decreasing of Cobalt Content in Properties for Diamond∕Cemented Carbide Tools

2010 ◽  
Author(s):  
A. Waratta ◽  
M. Hamdi ◽  
T. Ariga ◽  
Mohamad Rusop ◽  
Wong Tin Wui ◽  
...  
Keyword(s):  
Cobalt Content ◽  
Cemented Carbide ◽  
Cemented Carbide Tools

The Effect of Grain Size and Cobalt Content on the Wear of Ultrafine Cemented Carbide Tools

2014 ◽  
Vol 875-877 ◽  
pp. 1344-1351
Author(s):  
Jian Bing Cheng ◽  
Si Qin Pang ◽  
Xi Bin Wang ◽  
Xi Bin Wang ◽  
Chen Guang Lin
Keyword(s):  
Grain Size ◽  
Tool Wear ◽  
Tool Life ◽  
Wear Mechanism ◽  
Wear Mechanisms ◽  
High Strength Steels ◽  
Cobalt Content ◽  
Cemented Carbide ◽  
Cemented Carbide Tools ◽  
Cutting Speeds

This work contributes to a better understanding of wear mechanisms of ultrafine cemented carbide cutting tools used in turning operation of superalloy and high strength steels at high cutting speeds. The main objective of this work is to verify the influence of grain size and the cobalt content of ultrafine cemented carbide tools on tool life and tool wear mechanism. The main conclusions are that grain size and the cobalt content of ultrafine cemented carbide tools strongly influence tool life and tool wear involve different mechanisms. The wear mechanisms of different grain size and the cobalt content of ultrafine cemented carbide tools observed on the rake face at these conditions were adhesion and notch, at the end of tool life, adhesion was the main wear mechanism at higher cutting speeds.

Evaluation of Chip-Breakers Manufactured by Ultrashort Laser Pulses in Cemented Carbide Tools

2017 ◽  
Author(s):  
Marcelo Bertolete Carneiro ◽  
Patrícia Alves Barbosa ◽  
Ricardo Samad ◽  
NIlson Vieira ◽  
Wagner de Rossi ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Cemented Carbide ◽  
Cemented Carbide Tools ◽  
Ultrashort Laser

Effect of tool wear on the surface integrity of Inconel 718 in face milling with cemented carbide tools

Wear ◽  
2021 ◽  
pp. 203752
Author(s):  
A.R.F. Oliveira ◽  
L.R.R. da Silva ◽  
V. Baldin ◽  
M.P.C. Fonseca ◽  
R.B. Silva ◽  
...  
Keyword(s):  
Tool Wear ◽  
Surface Integrity ◽  
Inconel 718 ◽  
Face Milling ◽  
Cemented Carbide ◽  
Cemented Carbide Tools

Wear behaviour of cemented carbide tools in dry machining of aluminium alloy

Wear ◽  
2005 ◽  
Vol 259 (7-12) ◽  
pp. 1177-1189 ◽  
Author(s):  
G. List ◽  
M. Nouari ◽  
D. Géhin ◽  
S. Gomez ◽  
J.P. Manaud ◽  
...  
Keyword(s):  
Aluminium Alloy ◽  
Cemented Carbide ◽  
Wear Behaviour ◽  
Dry Machining ◽  
Cemented Carbide Tools

scholarly journals Wear mechanisms of uncoated and coated cemented carbide tools in machining lead-free silicon brass

Wear ◽  
2017 ◽  
Vol 376-377 ◽  
pp. 143-151 ◽  
Author(s):  
Volodymyr Bushlya ◽  
Daniel Johansson ◽  
Filip Lenrick ◽  
Jan-Eric Ståhl ◽  
Fredrik Schultheiss
Keyword(s):  
Wear Mechanisms ◽  
Cemented Carbide ◽  
Lead Free ◽  
Free Silicon ◽  
Cemented Carbide Tools ◽  
Coated Cemented Carbide

CVD-Diamantwerkzeuge mit SiC-Zwischenschicht/CVD-Diamond coated tools with SiC-interlayer

2019 ◽  
Vol 109 (11-12) ◽  
pp. 857-861
Author(s):  
E. Uhlmann ◽  
E. Bath ◽  
J. Gäbler ◽  
M. Höfer
Keyword(s):  
Adhesive Strength ◽  
Diffusion Barrier ◽  
Cvd Diamond ◽  
Cemented Carbide ◽  
Coating Process ◽  
Research Project ◽  
Coated Tools ◽  
Pre Treatment ◽  
Cemented Carbide Tools ◽  
Cutting Experiments

Der Cobalt-(Co)-Anteil in Hartmetallen diffundiert während des Diamantbeschichtungsprozesses in die Diamantschicht und mindert deren Haftfähigkeit. Siliciumcarbid-(SiC)-Zwischenschichten können als Diffusionsbarriere für Cobalt dienen und die konventionelle Ätzvorbehandlung der Substrate ersetzen. Im Rahmen einer Forschungsarbeit werden Beschichtungsprozesse mit SiC-Zwischenschicht entwickelt, diese Schichtsysteme auf verschiedene Substrate aufgebracht und durch Zerspanungsuntersuchungen bewertet.   The cobalt (Co) content in cemented carbide tools diffuses into the diamond layer during the coating process and reduces its adhesive strength. Siliciumcarbid-(SiC)-interlayers can serve as a diffusion barrier for cobalt and replace the conventional etching pre-treatment of blanks. In a research project different coating processes with SiC-interlayer are developed, the coating systems are applied to different substrates and evaluated in cutting experiments.

Ressourceneffizientes Umschleifen verschlissener VHM-Werkzeuge/Resource-efficient re-manufacturing of worn cemented carbide tools

2021 ◽  
Vol 111 (06) ◽  
pp. 430-434
Author(s):  
Berend Denkena ◽  
Marc-Andre Dittrich ◽  
Marcel Wichmann ◽  
Sven Friebe
Keyword(s):  
Tungsten Carbide ◽  
Manufacturing Process ◽  
Cemented Carbide ◽  
Research Project ◽  
Cost Share ◽  
Manufacturing Costs ◽  
Material Cost ◽  
Solid Carbide ◽  
Cemented Carbide Tools

Aufgrund steigender Preise von Wolfram und Kobalt sind die Herstellkosten von Vollhartmetallwerkzeugen durch einen hohen Materialkostenanteil geprägt. Im Forschungsprojekt „Re-Tool 2“ erforscht das Institut für Fertigungstechnik und Werkzeugmaschinen (IFW) zusammen mit der Wulf Schleiftechnik GmbH einen Herstellungsprozess, um verschlissene Werkzeuge als Rohlinge für die Werkzeugherstellung zu verwenden. Durch einen Vergleich der Herstellung von umgeschliffenen und neugeschliffenen VHM-Werkzeugen soll das ökonomische und ökologische Einsparpotenzial der Methode gezeigt werden.   Due to the rising prices of tungsten and cobalt, the manufacturing costs of solid carbide tools are characterized by a high material cost share. In the research project „Re-Tool 2“, the IFW is researching in cooperation with Wulf Schleiftechnik GmbH a manufacturing process to use worn tools as blanks for tool production. By means of a comparison between the manufacturing and re-manufacturing process of tungsten carbide tools, the high economic and ecological savings potential is shown.

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