scholarly journals Improving lubrication performance of cemented carbide tools combined Fe3O4 nanofluids lubricating and micro-groove textures in high-speed milling Ti6Al4V

2022 ◽  
Vol 16 (1) ◽  
pp. JAMDSM0004-JAMDSM0004
Author(s):  
Dalin GUO ◽  
Xuhong GUO ◽  
Junbao CHEN ◽  
Jun WANG ◽  
Zhong YAO ◽  
...  
Keyword(s):  
High Speed ◽  
Cemented Carbide ◽  
High Speed Milling ◽  
Lubrication Performance ◽  
Cemented Carbide Tools

scholarly journals SURFACE ROUGHNESS AND ITS PREDICTION IN HIGH SPEED MILLING OF ALUMINUM ALLOYS WITH PCD AND CEMENTED CARBIDE TOOLS

2019 ◽  
Vol 2019 (04) ◽  
pp. 3136-3141 ◽  
Author(s):  
U. Teicher ◽  
S. Pirl ◽  
A. Nestler ◽  
A. Hellmich ◽  
S. Ihlenfeldt
Keyword(s):  
Surface Roughness ◽  
Aluminum Alloys ◽  
High Speed ◽  
Cemented Carbide ◽  
High Speed Milling ◽  
Cemented Carbide Tools

Study on the Coated Tool Wear Mechanism of High Speed Milling Ni-Base Superalloy GH625

2012 ◽  
Vol 723 ◽  
pp. 311-316
Author(s):  
Wei Wang ◽  
Ming Hai Wang ◽  
Xiao Peng Li
Keyword(s):  
Wear Mechanisms ◽  
High Speed ◽  
High Speed Milling ◽  
Coated Tools ◽  
Coated Tool ◽  
Tool Wear Mechanism ◽  
Cemented Carbide Tools ◽  
Tools Wear ◽  
Coated Cemented Carbide ◽  
Base Superalloy

The experiments of high speed milling Ni-base superalloy GH625 by using two types of the coated cemented carbide tools at home and abroad, using the scanning electron microscopy (SEM) to observe the tools wear morphology, analyzing the worn surface elements distribution by energy spectrum analysis (EDS) and the main wear mechanisms of the tools. The results show that adhesion, oxidation and diffusion are the main wear mechanisms in initiative wearing stage of the domestic coated tools. And the main wear mechanisms of the imported coated tools are adhesion, oxidation, diffusion and coating spallation.

scholarly journals Study of the Processing of a Recycled WC–Co Powder: Can It Compete with Conventional WC–Co Powders?

2021 ◽  
Author(s):  
Alexandre Mégret ◽  
Véronique Vitry ◽  
Fabienne Delaunois
Keyword(s):  
High Speed ◽  
Raw Materials ◽  
Cemented Carbide ◽  
Full Density ◽  
Wet Milling ◽  
Vacuum Sintering ◽  
The Us ◽  
Milling Medium ◽  
Critical Minerals ◽  
Cemented Carbide Tools

AbstractCemented carbide tools suffer from many issues due to the use of tungsten and cobalt as raw materials. Indeed, those are listed by the European Commission as “critical raw materials” since 2011 and by the US Department of Interior as “critical minerals” in 2018. To remain competitive with the conventional high-speed steels, less performant but cheaper, WC–Co tools can be recycled. In the present paper, a WC–7.5Co powder, recycled by the “Coldstream” process, has been sintered with vacuum sintering. As preliminary experiments have shown that the sinterability of the powder is low, the sintering temperature was set at 1500 °C to achieve full density. In parallel, the influence of ball milling conditions (rotation speed and milling medium) on the reactivity of the recycled powder has been studied in terms of grain size distribution, hardness, and fracture toughness. The optimized milling conditions were found to be 6 h wet milling, leading to a hardness of about 1870 HV30 and a toughness of about 10.5 MPa√m after densification. The recycled powder can thus totally compete with conventional powders, opening avenues for the recycling of cemented carbide tools. Graphical Abstract

PERFORMANCE OF A COATED CEMENTED CARBIDE TOOL IN HIGH SPEED MILLING OF TI-6AL-4V ALLOY

2013 ◽  
Vol 12 (02) ◽  
pp. 131-146 ◽  
Author(s):  
GUANGYU TAN ◽  
YUHUA ZHANG ◽  
GUANGHUI LI ◽  
GUANGJUN LIU ◽  
YIMING (KEVIN) RONG
Keyword(s):  
Wear Mechanism ◽  
Cutting Forces ◽  
High Speed ◽  
Cutting Temperature ◽  
Cemented Carbide ◽  
Thermal Imager ◽  
Carbide Tool ◽  
High Speed Milling ◽  
Cemented Carbide Tool ◽  
Coated Cemented Carbide

A series of experiments were conducted to study the performance of a coated cemented carbide tool in high speed milling of Ti -6 Al -4 V alloy. Experimental measurements of three components of the cutting forces were performed by using a three-component dynamometer. The cutting temperature was measured by using an infrared thermal imager. The variation of cutting forces and cutting temperature with the cutting parameters are investigated. The influence of cutting speed, axial depth of cut, and feed rate on the cutting forces and cutting temperature are analyzed and discussed. The wear patterns of the tool were investigated using scanning electron microscope (SEM) and analysis of energy spectrum, and the wear mechanism is discussed. It is found that abrasive wear and adhesive wear are the dominant wear mechanism of the tool.

High Speed Turning of Ti-6Al-4V Alloy with Straight Cemented Carbide and PVD Coated Carbide Tools

2011 ◽  
Vol 496 ◽  
pp. 92-97 ◽  
Author(s):  
You Sheng Li ◽  
J. X. Deng ◽  
Steve Ebbrell ◽  
Michael N. Morgan ◽  
X.J. Ren
Keyword(s):  
Tool Life ◽  
High Speed ◽  
Cemented Carbide ◽  
Linear Regression Method ◽  
X Ray ◽  
Multiple Linear Regression Method ◽  
Energy Dispersive Microanalysis ◽  
Cemented Carbide Tools ◽  
Coated Carbide ◽  
Coated Carbide Tools

This work comparatively studied the performances of straight cemented carbide tools and PVD coated carbide tools in high speed dry turning of Ti-6Al-4V alloy. Systematic machining tests have been performed and the tool life data were analysed using multiple linear regression method to establish extended Taylor tool life models. The wear mechanisms for both tools have been investigated in detail through SEM observation and X-ray energy dispersive microanalysis (EDS).

Cutting Temperature in High Speed Milling of a Near Alpha Titanium Alloy

2006 ◽  
Vol 315-316 ◽  
pp. 145-149 ◽  
Author(s):  
Guo Sheng Geng ◽  
Jiu Hua Xu ◽  
Yu Can Fu ◽  
Y.F. Ge ◽  
C. Su
Keyword(s):  
Titanium Alloy ◽  
High Speed ◽  
Chemical Reactivity ◽  
Cutting Temperature ◽  
Cutting Parameters ◽  
Machining Accuracy ◽  
High Speed Milling ◽  
Thermocouple Method ◽  
Alpha Titanium ◽  
Cemented Carbide Tools

Cutting temperature has direct effects on tool wear and tool life, as well as machining accuracy and machining quality. Titanium alloys, however, are generally machined at lower cutting speeds with cemented carbide tools due to its low thermal conductivity and high chemical reactivity with cutting tool materials. This paper deals with cutting temperature in high-speed milling of a near alpha titanium alloy. The measuring principle of cutting temperature by the workpiece-constantan thermocouple method was illustrated and the physical meaning of the electromotive force (EMF) signals was described in the paper. The effects of cutting parameters and wear status on cutting temperature were studied, and the temperature distribution along the cutting edge was investigated.

scholarly journals Wear Mechanism of Cemented Carbide Tool in High Speed Milling of Stainless Steel

2018 ◽  
Vol 31 (1) ◽  
Author(s):  
Guang-Jun Liu ◽  
Zhao-Cheng Zhou ◽  
Xin Qian ◽  
Wei-Hai Pang ◽  
Guang-Hui Li ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Wear Mechanism ◽  
High Speed ◽  
Cemented Carbide ◽  
Carbide Tool ◽  
High Speed Milling ◽  
Cemented Carbide Tool
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