Statistical tool wear evaluation for cutting processes

2002 ◽  
Author(s):  
F. Betancourt-Silva ◽  
F. Betancourt-Soto ◽  
L.J. Barrios ◽  
D. Guinea
Keyword(s):  
Tool Wear ◽  
Statistical Tool ◽  
Wear Evaluation ◽  
Cutting Processes

scholarly journals UNDERSTANDING TEMPERATURE EFFECTS ON FRICTION AT TOOL – CFRP WORKPIECE INTERFACE USING OPEN-LOOP FRICTION TESTING

2021 ◽  
Vol 2021 (3) ◽  
pp. 4605-4611
Author(s):  
S. Ashworth ◽  
◽  
K. Kerrigan ◽  
Keyword(s):  
Tool Wear ◽  
Thermal Effects ◽  
Temperature Effects ◽  
Open Loop ◽  
Friction Testing ◽  
Reinforced Polymer ◽  
Carbon Fibre Reinforced Polymer ◽  
Fibre Reinforced Polymer ◽  
Cutting Processes ◽  
Coated Carbide

Cutting processes of carbon fibre reinforced polymer (CFRP) material generate significant energy in the form of heat which can be detrimental to final surface and sub-surface quality. By artificially changing the temperature of the workpiece to simulate cutting temperatures, thermal effects on friction metrics can be understood. Feed rate and CFRP pre-heating for macro and nanoscale open loop pin on plate friction testing has been completed for two aerospace grade CFRP materials with steel, carbide and coated carbide pins to give an insight to fundamental tool wear that occurs in CFRP machining.

Tool wear evaluation on rubberized fly ash geopolymer milling

2019 ◽  
Author(s):  
Tan Chun Yu ◽  
M. Fathullah ◽  
M. M. A. Abdullah ◽  
Z. Shayfull ◽  
Faheem Tahir
Keyword(s):  
Fly Ash ◽  
Tool Wear ◽  
Wear Evaluation

scholarly journals Tool wear evaluation in drilling by acoustic emission

2010 ◽  
Vol 3 (1) ◽  
pp. 819-825 ◽  
Author(s):  
Martín P. Gómez ◽  
Alfredo M. Hey ◽  
José E. Ruzzante ◽  
Carlos E. D’Attellis
Keyword(s):  
Acoustic Emission ◽  
Tool Wear ◽  
Wear Evaluation

scholarly journals Using tool wear to increase process stability when milling Al7075 and AISI 4140+QT

2021 ◽  
Author(s):  
Berend Denkena ◽  
Alexander Krödel ◽  
Andreas Relard
Keyword(s):  
Tool Wear ◽  
Flank Wear ◽  
Load Capacity ◽  
Milling Process ◽  
Machining Process ◽  
Depth Of Cut ◽  
Process Stability ◽  
Side Milling ◽  
Machine Performance ◽  
Cutting Processes

AbstractOne of the main limits of productivity during cutting processes is the occurrence of regenerative chatter. Due to these self-excited vibrations, the load capacity of the machine components, the tool as well as the machine performance cannot be fully utilized. There are several methods to stabilize the milling process. One is the use of increased process damping, which results from the contact of the tool’s flank face and the workpiece. The flank wear land naturally increases the contact between tool and workpiece. However, this effect has not been used to increase productivity in milling processes. This paper investigates with experiments and numerical simulations how tool wear affects process stability in milling of aluminum and steel. Therefore slot milling and side milling tests were carried out with tools of various states of flank wear. It could be shown that increasing flank wear allows to raise the depth of cut ap up to 300% in machining aluminum and perform the machining process with a higher productivity.

Study of the Radiometric Method and Use of the Liquid Scintillation Technique for Tool-Wear Determination

1965 ◽  
Vol 87 (1) ◽  
pp. 47-52 ◽  
Author(s):  
G. F. Wilson ◽  
W. Dennis McHenry
Keyword(s):  
Tool Wear ◽  
Liquid Scintillation ◽  
Radioactive Tracer ◽  
Radiometric Method ◽  
Primary Methods ◽  
Tracer Techniques ◽  
Wear Evaluation ◽  
Measuring Tool

A radiometric method of tool-wear evaluation was investigated and evaluated by comparing the results with those obtained from visual wear measurements. A liquid scintillation technique is presented for accurately determining tool wear for cutting limes as low as 0.003 min. It is recommended that the radioactive tracer techniques of measuring tool wear be used as supplemental methods in conjunction with visual wear determination procedures rather than primary methods of evaluating machining variables.

scholarly journals Tool Wear Evaluation of Selected Inserts after Turning by Electron Microscopy

2016 ◽  
Vol 16 (5) ◽  
pp. 1068-1073
Author(s):  
Nataša Náprstková ◽  
Jaromír Cais ◽  
Pavel Kraus ◽  
Tuong Nguyen Van
Keyword(s):  
Electron Microscopy ◽  
Tool Wear ◽  
Wear Evaluation

scholarly journals Tool wear evaluation based on vibration analysis during milling of MMC using diamond coated end mills

Mechanik ◽  
2020 ◽  
Vol 93 (1) ◽  
pp. 35-37
Author(s):  
Martyna Wiciak-Pikuła ◽  
Paweł Twardowski ◽  
Agata Felusiak ◽  
Szymon Orłowski
Keyword(s):  
Tool Wear ◽  
Vibration Analysis ◽  
Mechanical Vibration ◽  
The State ◽  
End Mills ◽  
Wear Evaluation ◽  
Cutting Speeds

The aim of the research was to analyze the wear of the end mills based on the measurement of mechanical vibration accelerations. The VBB index was used as the tool wear criterion, which was measured until a specific maximum wear was obtained. The paper compares the tool wear values at different cutting speeds and determines the possibility of predicting the state of the tool wear based on the measurements of mechanical vibration accelerations.

Finite Element Analysis of the Effects of Tool-Chip Friction on Cutting Temperature Field

2010 ◽  
Vol 44-47 ◽  
pp. 425-429
Author(s):  
Sheng Yu Liu ◽  
Jian Ying Guo
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Friction Coefficient ◽  
Tool Wear ◽  
Inclination Angle ◽  
Metal Cutting ◽  
Cutting Temperature ◽  
Rake Angle ◽  
Element Analysis ◽  
Cutting Processes

The heat generation caused by tool-chip friction and chip deformation strongly influences the tool wear and tool life in metal cutting processes. The focus of this paper is on the effect of tool-chip on cutting temperature field. A series of ¬finite element simulations have been performed, in which a modifi¬ed Coulomb friction law is used to model the friction along tool–chip interface. A tool rake angle ranging from 10° to 45°, a inclination angle ranging from 0° to 20°, and a friction coefficient ranging from 0.1 to 0.6 have been considered in simulations. The results of these simulations show that the maximum cutting temperature increases with the increasing of tool-chip friction coefficient at different rake angle and inclination angle. The form of tool wear mainly appears as crater wear when the friction coefficient is less than 0.5, and the cutting edge tends to split when the friction coefficient is larger than 0.6.

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