Study on Cutting Temperature and Wear Mechanism of Tool in High Speed Turning Superalloy GH2132

In this article, the micro-topography and texture characteristics of machined surface under the condition of high speed cutting are analyzed based on experimental observation. The forming process of machined surface and cause of the appearance are also discussed. The experimental results show that furrow and ridges, surface white layer and molten metal daub by the feed motion of cutting tool are found on machined surface due to the effect of high cutting temperature and rotating of workpiece in high speed turning process.

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

Journal of Advanced Manufacturing Systems ◽

10.1142/s0219686713500078 ◽

2013 ◽

Vol 12 (02) ◽

pp. 131-146 ◽

Cited By ~ 3

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.

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Research on the Wear Process of High Speed Cutting Ni-Based Superalloy

Materials Science Forum ◽

10.4028/www.scientific.net/msf.800-801.102 ◽

2014 ◽

Vol 800-801 ◽

pp. 102-106

Author(s):

Jun Zhou ◽

Ming Pu Liu ◽

Hong Qi Sun

Keyword(s):

Surface Roughness ◽

Tool Wear ◽

Cutting Force ◽

Wear Mechanism ◽

High Speed ◽

Cutting Tool ◽

Cutting Temperature ◽

Wear Process ◽

High Speed Cutting ◽

Cutting Tool Wear

As the main method of high efficiency cutting Ni-based superalloy, high-speed cutting can not but intensify the cutting-tool wear for the high cutting force and cutting temperature. So, it is very necessary to study the process of cutting-tool wear and wear mechanism, especially, the effect of cutting-tool wear on the cutting force, cutting temperature and surface roughness of machined workpiece. In this paper, investigation of tool wear in high-speed cutting is proposed, the PCDTiAlN carbide insert is used in the experiment, the cutting-tool wear and the corresponding cutting force, cutting temperature and surface roughness of machined workpiece is detected. It indicates that the cutting force, cutting temperature and surface roughness of machined workpiece is changed corresponding the cutting-tool wear,the wear process of coated tool include the coated material wears and base material wears,the wear mechanism is complex. Key word: superalloy, high-speed cutting, tool wear, wear form ; .

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Study on Machinability of 35CrMnSiA Steel in Hard Turning Process

Materials Science Forum ◽

10.4028/www.scientific.net/msf.532-533.349 ◽

2006 ◽

Vol 532-533 ◽

pp. 349-352

Author(s):

Wen Xiang Zhao ◽

Si Qin Pang ◽

Zhen Hai Long ◽

Xi Bin Wang

Keyword(s):

Surface Roughness ◽

Feed Rate ◽

High Speed ◽

Cutting Temperature ◽

High Strength ◽

Depth Of Cut ◽

Turning Process ◽

High Speed Turning ◽

Cutting Velocity ◽

Strength Alloy

35CrMnSiA, is a kind of important engineering materials that used widely in modern manufacturing fields. The machinability of 35CrMnSiA Steel with hardness of HRc40±2 in high speed turning process was studied in this paper. It is concluded that, when high speed turning of this ultra-high strength alloy steel, the chief wear mode of ceramics is the crater on rake faces; the interaction of depth of cut and feed rate is one of statistic significant effects on cutting force; the interaction of cutting velocity of cut and feed rate is one of statistic significant effects on surface roughness Ra; besides, the empirical formula of average cutting temperature, cutting forces, surface roughness Ra, was established.

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Experimental Study of Green High-Speed Turning Nickel-Based Superalloy GH4169

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.26-28.1132 ◽

2010 ◽

Vol 26-28 ◽

pp. 1132-1136

Author(s):

Jun Zhou ◽

Rong Di Han

Keyword(s):

Water Vapor ◽

High Speed ◽

Cutting Temperature ◽

Operating Conditions ◽

Dry Cutting ◽

Machined Surface ◽

High Speed Turning ◽

Nickel Based Superalloy ◽

Cooling Lubricant ◽

Lubricant Application

Knowing the stringent operating conditions to which superalloys are subjected to in automobile, aerospace and gas turbine industries, the machinability of nickel-based superalloy GH4169 is very poor, the traditional cutting fluids in GH4169 machining pollutes environments. The purpose of this study is to clarify the possibility of the turning in high speed (vc＞50m/min)[1]. In particular, the effects of the overheat water vapor with 130°C as cooling lubricant application were examined, through observation and measurement of the shape of the generated chips, machined surface integrity, cutting force and cutting temperature in a series of experiments with dry cutting or overheat water vapor with 130°C as cooling lubricant. As a result of these experiments, it was possible to measure and confirm the effects of the overheat water vapor with 130°C as cooling lubricant in high speed turning.

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