scholarly journals A Tentative Method for The Prediction of The Friction Force Component Cutting Tool Rake Face

2012 ◽  
Vol 78 (3) ◽  
pp. 222-225 ◽  
Author(s):  
Takuya SAKURAMOTO ◽  
Osamu MURATA ◽  
Takashi HITOMI ◽  
Tohru IHARA
2012 ◽  
Vol 500 ◽  
pp. 211-217
Author(s):  
Zhe Li ◽  
Min Li Zheng ◽  
Xian Zhi Chen ◽  
Meng Tong

Through the analysis on damaged tool in sticking failure experiment by cutting austenitic stainless steel (1Cr18Ni9Ti) with scanning electron microscopy (SME), found that there are micro cracks existent on rake face near the tip of the cutting tool, through the research of the emergence, development and distribution direction of the crack, the direct reason for tool breakage is the crack being out of control. Combining the study of cutting tool element density change in cutting zone and grooving wear on rake face, this paper analyzed the cause of the binding between chip and tool and the influence factors of sticking failure during the cutting process.


Author(s):  
Keigo ISHII ◽  
Tatsuro FURUSHO ◽  
Naohiko SUGITA ◽  
Reo Kometani ◽  
Sunao ISHIHARA ◽  
...  

1973 ◽  
Vol 15 (3) ◽  
pp. 200-209 ◽  
Author(s):  
P. F. Thomason

An analysis of published experimental and theoretical slip-line field results for the metal cutting process suggests that, when the tool and workpiece are of high elastic modulus, a reasonable first approximation to the rake-face loading will consist of uniformly distributed normal and tangential stresses over the contact length. An indication of the form of the stress distribution at the tip of a cutting tool is therefore obtained from an isothermal–elastic solution for a two-dimensional infinite wedge, loaded antisymmetrically by uniform normal and tangential stresses adjacent to the apex. Only a preliminary assessment of the results is made, in relation to cutting tool wear and fracture problems, since a more detailed assessment will await a complete thermoelastic solution to the problem.


1976 ◽  
Vol 98 (3) ◽  
pp. 890-894
Author(s):  
R. L. Murty ◽  
M. A. Qayyum

The stresses developed on the rake face of single point tool models under the action of a static force by applying MOIRE technique have been investigated. Three tool models with varying rake angles (+30, 0, and −30 deg) are studied and the stresses developed on the rake face are compared.


2018 ◽  
Vol 98 (1-4) ◽  
pp. 421-429 ◽  
Author(s):  
Jinguo Chen ◽  
Minli Zheng ◽  
Zhang Wei ◽  
Yushuang Sun ◽  
Qunhua Tang

2012 ◽  
Vol 523-524 ◽  
pp. 815-820
Author(s):  
Junichi Harashita ◽  
Yuji Tomoda ◽  
Jun Shinozuka

This study has devised a tool insert with micro built-in thermocouples in order to establish a cutting-temperature measuring method for practical use. This tool insert possesses seven pairs of micro Cu/Ni film thermocouple near the cutting edge on the rake face. In this study, Cu film and Ni film were deposited in the micro grooves corresponding to a circuit pattern of the micro thermocouple by means of electroless plating and electroplating. This paper shows the results of the investigation concerning the electrical properties of the micro Cu/Ni film thermocouples. The influence of the current density in electroplating on the electrical resistivity of the films was examined. The characteristic of the Seebeck property of the micro Cu/Ni film thermocouple was investigated in a temperature difference of up to 600 K with a heating apparatus developed. The Seebeck coefficient of the micro Cu/Ni film thermocouple was smaller by 28 % than that of a Cu/Ni wire thermocouple. The result implies that the degradation in the Seebeck property of the micro Cu/Ni film thermocouple derives from an existence of an impurity between Cu film and Ni film in the hot junction.


2016 ◽  
Vol 1136 ◽  
pp. 561-566
Author(s):  
Tatsuya Sugihara ◽  
Shota Takemura ◽  
Toshiyuki Enomoto

Nickel-based superalloys such as Inconel 718 are known as one of the most difficult-to-cut materials due to their mechanical and chemical properties and the tool life is extremely short. Recently, Cubic-Boron-Nitride (CBN) has received a considerable attention as a material for cutting tools and has been considered to be a major candidate for high performance cutting of Inconel 718. However, the detailed wear behavior of CBN tools in cutting of Inconel 718 is not sufficiently understood yet, and the performances of CBN tools are still insufficient in practical use. To overcome this problem, we first conducted orthogonal cutting experiments on Inconel 718 at low (20 m/min) and high (100 m/min) cutting speeds employing CBN cutting tools to clarify the detailed wear mechanisms. Moreover, relationship between surface microstructures of the cutting tool and wear resistance was investigated. As a result, it was found that a rake face with micro grooves significantly suppressed the crater wear at low cutting speed, although polished surface rake face reduced the initial crater wear by approximately 40 % compared to the non-polished tool in high speed cutting of Inconel 718.


CIRP Annals ◽  
1981 ◽  
Vol 30 (1) ◽  
pp. 5-8 ◽  
Author(s):  
K. Nakayama ◽  
M. Arai ◽  
T. Kondo ◽  
H. Suzuki
Keyword(s):  

Author(s):  
C. L. V. R. S. V. Prasad ◽  
S. V. Ramana ◽  
S. Srikiran ◽  
K. Ramji

In order to improve the performance of the cutting tool, it is required to model the metal cutting process at the system level. To predict and enhance the cutting tool performance the primary requirement of the system is the efficiency of the model explaining the interactions at the tool chip interface. The predominating parameters which influence the development of the system are work piece material and machining variables or sometimes both. Further the development of low cost methodology to study the chip tool interactions with minimum amount of testing is of more importance. Major part of the work is emphasized on the investigation and characterization of various zones on the rake face of tungsten carbide inserts. Tests have been carried out by machining AISI 1040 steel using WC inserts with variable dry conditions examining the chip flow phenomenon on the rake face of considerable number of samples. Taguchi method is adopted for the design of experimental conditions. Results have shown an acceptable chip flow patterns and authors were able to quantify the wear zones on the rake face. The rake face is then characterized to represent all the possible cases of chip flow patterns, crater wear and chipping of the cutting edge. Side and end cutting edges are taken as datum lines for locating the wear zones. The quantification and locations of the wear zones might help the researchers and tool makers to concentrate more on the defined areas instead of the rake face in total.


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