scholarly journals Measurement of Temperature Distribution of Cutting Tool by Fine Powders Having Constant Melting Point

1975 ◽  
Vol 41 (341) ◽  
pp. 343-350
Author(s):  
Shinobu KATO ◽  
Katsumi YAMAGUCHI ◽  
Yoichi WATANABE ◽  
Yasuhiko HIRAIWA
Keyword(s):  
Temperature Distribution ◽  
Melting Point ◽  
Cutting Tool ◽  
Fine Powders

Measurement of Temperature Distribution Within Tool Using Powders of Constant Melting Point

1976 ◽  
Vol 98 (2) ◽  
pp. 607-613 ◽  
Author(s):  
S. Kato ◽  
K. Yamaguchi ◽  
Y. Watanabe ◽  
Y. Hiraiwa
Keyword(s):  
Temperature Distribution ◽  
Melting Point ◽  
Boundary Line ◽  
Heat Distribution ◽  
Rake Face ◽  
Tool Temperature ◽  
Fine Powders ◽  
Temperature Distributions ◽  
Tool Surface

A method was developed to measure tool temperature distribution within the tool by means of fine powders that have a constant melting point. The method involves observation of the boundary line formed by melted and unmelted powder scattered on the tool surface. It is clarified that temperature distribution within the tool is easily and accurately measured in this manner. Temperature distributions were compared with results obtained from analyses based on Loewen and Shaw’s theory, modified on the assumption that heat distribution due to friction along the rake face is not uniform but, rather, like real frictional distribution in cutting, and the fraction of heat flowing into the tool varies along the rake face.

Influence of Tool Holder Material on Interfacial, Insert and Tool Holder Temperatures During Turning Operation of Gray Iron

2012 ◽  
Author(s):  
Almir K. Kaminise ◽  
Gilmar Guimaraes ◽  
Marcio B. Da Silva
Keyword(s):  
Temperature Distribution ◽  
Carbon Steel ◽  
Cutting Tool ◽  
Gray Iron ◽  
Cutting Fluid ◽  
Interface Temperature ◽  
Turning Operation ◽  
Tool Holder ◽  
Cutting Insert ◽  
Thermocouple Method

Usually studies related to machining temperature consider a system comprised of workpiece, chip and cutting tool, the effect of tool holder material is not taken in account. However, due to its physical properties, the tool holder material, usually carbon steel, has effect in the dissipation of the heat generated. This work studies the effect of the tool holder material on the temperature distribution during the turning operation of gray iron using cemented carbide cutting tool and without cutting fluid. Five tool holders were manufactured from materials with different heat conductivity: carbon steel, stainless steel, titanium, copper and bronze. Temperatures in eight different positions in the tool holder and cutting insert were measured. The average temperature at the chip tool interface was also measured using the tool-work thermocouple method. The results showed that the measured chip tool interface temperature was less affected by the tool holder material, although the temperature distribution at the cutting tool is highly affected.

P-OS2-1 Development of Nano Temperature Sensor Array for Acquisition of Temperature Distribution on the Rake Face of Cutting Tool

2012 ◽  
Vol 2012.4 (0) ◽  
pp. 245-246
Author(s):  
Keigo ISHII ◽  
Tatsuro FURUSHO ◽  
Naohiko SUGITA ◽  
Reo Kometani ◽  
Sunao ISHIHARA ◽  
...  
Keyword(s):  
Temperature Distribution ◽  
Temperature Sensor ◽  
Sensor Array ◽  
Cutting Tool ◽  
Rake Face

EXPERIMENTAL AND NUMERICAL METHOD FOR DETERMINING TEMPERATURE DISTRIBUTION IN A WOOD CUTTING TOOL

2003 ◽  
Vol 16 (4) ◽  
pp. 255-271 ◽  
Author(s):  
J. Y. Sheikh-Ahmad ◽  
C. M. Lewandowski ◽  
J. S. Stewart
Keyword(s):  
Temperature Distribution ◽  
Numerical Method ◽  
Cutting Tool ◽  
Wood Cutting

Cutting Force and Friction Modelling in High Speed End-Milling

2015 ◽  
Author(s):  
Sunday J. Ojolo ◽  
Olumuwiya Agunsoye ◽  
Oluwole Adesina ◽  
Gbeminiyi M. Sobamowo
Keyword(s):  
Temperature Field ◽  
Temperature Distribution ◽  
Cutting Forces ◽  
High Speed ◽  
Metal Cutting ◽  
Cutting Tool ◽  
End Milling ◽  
Cutting Process ◽  
Machining Process ◽  
Work Piece

Temperature field in metal cutting process is one of the most important phenomena in machining process. Temperature rise in machining directly or indirectly determines other cutting parameters such as tool life, tool wear, thermal deformation, surface quality and mechanics of chip formation. The variation in temperature of a cutting tool in end milling is more complicated than any other machining operation especially in high speed machining. It is therefore very important to investigate the temperature distribution on the cutting tool–work piece interface in end milling operation. The determination of the temperature field is carried out by the analysis of heat transfer in metal cutting zone. Most studies previously carried out on the temperature distribution model analysis were based on analytical model and with the used of conventional machining that is continuous cutting in nature. The limitations discovered in the models and validated experiments include the oversimplified assumptions which affect the accuracy of the models. In metal cutting process, thermo-mechanical coupling is required and to carry out any temperature field determination successfully, there is need to address the issue of various forces acting during cutting and the frictional effect on the tool-work piece interface. Most previous studies on the temperature field either neglected the effect of friction or assumed it to be constant. The friction model at the tool-work interface and tool-chip interface in metal cutting play a vital role in influencing the modelling process and the accuracy of predicted cutting forces, stress, and temperature distribution. In this work, mechanistic model was adopted to establish the cutting forces and also a new coefficient of friction was also established. This can be used to simulate the cutting process in order to enhance the machining quality especially surface finish and monitor the wear of tool.

scholarly journals Measurement of the Temperature Distribution at the Tool-Chip Interface by Using a Cutting Tool with Seven Pairs of Built-In Micro Cu/Ni Thermocouples

2016 ◽  
Vol 1136 ◽  
pp. 586-591 ◽  
Author(s):  
Jun Shinozuka ◽  
Habibah binti Jaharadak
Keyword(s):  
Aluminum Alloy ◽  
Heat Conduction ◽  
Temperature Distribution ◽  
High Performance ◽  
Cutting Tool ◽  
Cutting Speed ◽  
Rake Face ◽  
Machining Performance ◽  
Unsteady Heat Conduction ◽  
Indexable Insert

Knowing temperatures at the tool-chip interface is extremely important to optimize the machining condition and to improve the machining performance, furthermore to design high performance materials. In order to grasp the temperature distribution at the tool-chip interface, this study has devised an indexable insert with seven pairs of built-in micro Cu/Ni thermocouples on the rake face near the cutting edge. This paper shows the performance of the indexable insert with built-in micro thermocouples developed. The thickness of each element of the micro thermocouple is approximately 15 μm. The result of unsteady heat conduction analysis employing FEM shows that the temperature difference by installing the micro thermocouples is less than 10 K or 1.2 %. The temperature measurement experiments by cutting of aluminum alloy were carried out by changing the cutting speed. The results provided the evidence that the temperature distribution at the tool-chip interface can be grasped with the indexable insert with built-in micro thermocouples developed.

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