Relationship Between Tool Deterioration and Cutting Force During Milling of a Nickel-Based Superalloy Using Cemented Carbide Tool

2016 ◽  
pp. 173-178
Keyword(s):  
Cutting Force ◽  
Cemented Carbide ◽  
Carbide Tool ◽  
Nickel Based Superalloy ◽  
Cemented Carbide Tool

Relationship Between Tool Deterioration and Cutting Force During Milling of a Nickel-Based Superalloy Using Cemented Carbide Tool

2015 ◽  
Author(s):  
Nurul Hidayah Razak ◽  
Zhan W. Chen ◽  
Timotius Pasang
Keyword(s):  
Cutting Force ◽  
Cemented Carbide ◽  
Detection Methods ◽  
Force Model ◽  
Carbide Tool ◽  
Model Base ◽  
Nickel Based Superalloy ◽  
Rate Of Increase ◽  
Cemented Carbide Tool ◽  
Edge Wear

Nickel-based superalloys have long been recognized as difficult-to-machine alloys. Chipping and breakage are understood as the dominant features of tool deterioration particularly in milling of these alloys. But how tool deterioration affects cutting force (Fc) has not been sufficiently established so that force model base deterioration detection methods can be practically developed. Thus, this study intends to better demonstrate the relationship between modes of tool deterioration and Fc. Milling experiments were conducted using 718Plus superalloy and uncoated cemented carbide tool and a commonly used set of milling parameters, with or without the use of coolant. During these experiments, Fc was recorded and in between milling passes the traditionally used flank wear value (VB) was precisely measured. We have observed that as milling progressed, along with the slow edge wear, edge chipping and fracturing intensified and Fc increased. However, before the final catastrophic failure, the rate of increase was relatively small in comparison to the scatters in Fc vs VBMax plot. Thus, a model based on Fc vs VBMax for detection of tool deterioration may not be suitable. We will explain the reasons for the scatters and relate the fracturing path to the effect of it to cutting edge contact area, thus to Fc.

Cutting Performance of Cemented Carbide Tool in High-Efficiency Turning Ti6Al4V

2012 ◽  
Vol 522 ◽  
pp. 231-235 ◽  
Author(s):  
Yi Hang Fan ◽  
Min Li Zheng ◽  
Zhe Li ◽  
Song Tao Wang ◽  
Ying Bin Li
Keyword(s):  
Titanium Alloy ◽  
Tool Wear ◽  
Cutting Force ◽  
Tool Life ◽  
Cutting Temperature ◽  
Cutting Performance ◽  
Cemented Carbide ◽  
Carbide Tool ◽  
Cemented Carbide Tool ◽  
Coated Carbide

The machining efficiency of titanium alloy Ti6Al4V is low and the tool wear is serious. In this paper, uncoated carbide tool and two kinds of coated cemented carbide tool were used for dry turning titanium alloy. The experiments used CCD Observing System and the EDAX analysis of SEM to study tool wear mechanism and analyze the cutting performance through tool life, cutting force and cutting temperature. The results show that the main wear reasons are adhesion, diffusion and oxidation wear. For coated tool, the coating peeled off first, and then tool substrate damaged. Compared with coated carbide tool, the uncoated carbide tool with fine grain has longer tool life and lower cutting force and cutting temperature. The changes of cutting force and cutting temperature with cutting speed are not obvious when using the ccomposite coating (TiAlN and AlCrN) carbide tool. The results can help to choose tool material reasonably and control tool wear.

Experimental Research on ELID Grinding and Cutting Performance of Nano Cemented Carbide Cutters

2005 ◽  
Vol 291-292 ◽  
pp. 115-120 ◽  
Author(s):  
Fei Hu Zhang ◽  
J.C. Gui ◽  
Yi Zhi Liu ◽  
Hua Li Zhang
Keyword(s):  
Cutting Speed ◽  
Ground Surface ◽  
High Hardness ◽  
Cemented Carbide ◽  
Carbide Tool ◽  
Elid Grinding ◽  
Fine Grain ◽  
Cemented Carbide Tool ◽  
The Difference ◽  
Ground Surface Roughness

Nano cemented carbide is a new style cutter material. Because its grain size is very small, it is superior to common cemented carbide in properties, such as high hardness, fracture toughness, flexural strength and higher abrasion resistance. As a cutter material, nano cemented carbide has wide use. In this paper, nano cemented carbide tool was ground with ELID technology, and the cutting properties of nano cemented carbide were studied, and the difference in cutting properties among the ultra-fine grain, common cemented carbide and nano cemented carbide was analyzed under the same condition. Results imply that the ground surface roughness of nano cemented carbide is obviously lower than that of common cemented carbide, and the tool life of nano cemented carbide is 5-7 times longer than that of common cemented carbide at low cutting speed.

Effect of methane concentration on mechanical properties of HFCVD diamond-coated cemented carbide tool inserts

1996 ◽  
Vol 86-87 ◽  
pp. 678-685 ◽  
Author(s):  
M.A. Taher ◽  
W.F. Schmidt ◽  
W.D. Brown ◽  
S. Nasrazadani ◽  
H.A. Nasseem ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Methane Concentration ◽  
Cemented Carbide ◽  
Carbide Tool ◽  
Cemented Carbide Tool ◽  
Coated Cemented Carbide

Investigation on hardness testing of cemented carbide tool based on finite element method

2020 ◽  
pp. 095440622097616
Author(s):  
Siyuan Gao ◽  
Minli Zheng ◽  
Jinguo Chen ◽  
Wei Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Traditional Method ◽  
Three Dimensional ◽  
Cemented Carbide ◽  
Carbide Tool ◽  
Indentation Method ◽  
Cemented Carbide Tool ◽  
Hardness Values ◽  
Element Method

Hardness is a critical mechanical property of cutting tools, which significantly affects the cutting performance and wear resistance. Therefore, it is of great significance to obtain the hardness of the tool surface accurately. This paper presents a method based on finite element method (FEM) for studying the hardness of carbide tools. The microstructure of the carbide tool is obtained by scanning electron microscope(SEM). Combined with stereo principle, and secondary treatment, a three-dimensional multi-crystal model of carbide tool and indentation is established, and the model and hardness value obtained by different calculation methods are verified by microhardness test. The results show that the real hardness of the cemented carbide tool can be obtained by the indentation FEM model. The hardness values of cemented carbide tools are then calculated by the traditional method, Oliver-Pharr (OP) method and indentation method, respectively. It is found that the hardness value of the traditional method is the largest and fluctuates greatly, while the hardness values calculated by the OP method and indentation method are similar, and the fluctuation range of the hardness value calculated by the OP method is larger. In conclusion, the hardness calculated by the indentation work method is the best.

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