Conceptual tribo-energetic analysis of cutting tool protective coating delamination in dry cutting of hard-to-cut aero engine alloys

2006 ◽  
Vol 36 (3-4) ◽  
pp. 213-225 ◽  
Author(s):  
H. A. Abdel-Aal ◽  
M. Nouari ◽  
M. El Mansori ◽  
A. Ginting
Keyword(s):  
Protective Coating ◽  
Cutting Tool ◽  
Dry Cutting ◽  
Aero Engine ◽  
Coating Delamination ◽  
Energetic Analysis

Comparative Analysis between Conventional and Dry Turning

2017 ◽  
Vol 261 ◽  
pp. 267-274
Author(s):  
Pantelis N. Botsaris ◽  
Chaido Kyritsi ◽  
Dimitris Iliadis
Keyword(s):  
Experimental Data ◽  
Surface Roughness ◽  
Cutting Tool ◽  
Spindle Motor ◽  
Air Cooling ◽  
Machining Parameters ◽  
Turning Process ◽  
Dry Cutting ◽  
Cold Air ◽  
Cooling And Lubrication

In this paper, there is an attempt to monitor and evaluate machining parameters when turning 34CrNiMo6 material under different cooling and lubrication conditions. The machining parameters concerned are temperature of the cutting tool and the workpiece, level of vibrations of the cutting tool, surface roughness of the workpiece, noise levels of the turning process and current drawn by the main spindle motor. Four different experimental machining scenarios were completed, specifically: conventional wet turning process, dry cutting and two additional modes employing cooling by cold air. Experimental data were acquired and recorded by an optimally designed network of sensors. Experimental data were statistically analyzed in order to reach conclusions. According to the research that has been done, although, overall, minimum cutting tool and workpiece temperatures were observed under wet machining, cold air cooling is capable of achieving comparable cooling results to wet machining. The lowest values of surface roughness were achieved by wet machining, whereas the lowest level of cutting tool vibrations were observed under cold air cooling.

Hard Nano-Crystalline Coatings for Cutting Tools

2007 ◽  
Vol 567-568 ◽  
pp. 185-188 ◽  
Author(s):  
Miroslav Piska
Keyword(s):  
High Speed ◽  
Metal Cutting ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Dry Cutting ◽  
Nano Crystalline ◽  
The Right ◽  
Machining Productivity ◽  
Hard Cutting ◽  
Cutting Tool Materials

Modern trends in metal cutting, high speed/feed machining, dry cutting and hard cutting set more demanding characteristics for cutting tool materials. The exposed parts of the cutting edges must be protected against the severe loading conditions and wear. The most significant coatings methods for cutting tools are PVD and CVD/MTCVD today. The choice of the right substrate or the right protective coating in the specific machining operation can have serious impact on machining productivity and economy. In many cases the deposition of the cutting tool with a hard coating increases considerably its cutting performance and tool life. The coating protects the tool against abrasion, adhesion, diffusion, formation of comb cracks and other wear phenomena.

Performance of Low Cost 3D Printed Minimum Quantity Lubrication Applicator Using Palm Oil in Milling Steel

2020 ◽  
Vol 997 ◽  
pp. 85-92
Author(s):  
Abang Mohammad Nizam Abang Kamaruddin ◽  
Abdullah Yassin ◽  
Shahrol Mohamaddan ◽  
Syaiful Anwar Rajaie ◽  
Muhammad Isyraf Mazlan ◽  
...  
Keyword(s):  
Tool Wear ◽  
Cutting Forces ◽  
Cutting Tool ◽  
Low Cost ◽  
Minimum Quantity Lubrication ◽  
Machining Process ◽  
Cutting Condition ◽  
Dry Cutting ◽  
Minimum Quantity ◽  
Tool Performance

One of the most significant factors in machining process or metal cutting is the cutting tool performance. The rapid wear rate of cutting tools and cutting forces expend due to high cutting temperature is a critical problem to be solved in high-speed machining process, milling. Near-dry machining such as minimum quantity lubrication (MQL) is regarded as one of the solutions to solve this problem. However, the function of MQL in milling process is still uncertain so far which prevents MQL from widely being utilized in this specific machining process. In this paper, the mechanism of cutting tool performance such as tool wear and cutting forces in MQL assisted milling is investigated more comprehensively and the results are compared in three different cutting conditions which is dry cutting, wet cutting (flooding) and MQL. The MQL applicator is constructed from a household grade low-cost 3D printing technique. The chips surface of chips formation in each cutting condition is also observed using Scanning Electron Microscopy (SEM) machine. It is found out that wet cutting (flooding) is the best cutting performance compare to MQL and dry cutting. However, it can also be said that wet cutting and MQL produced almost the same value of tool wear and cutting forces as there is negligible differences in average tool wear and cutting forces between them based on the experiment conducted.

New Technologies of Green High Speed Dry Cutting

2012 ◽  
Vol 723 ◽  
pp. 72-76
Author(s):  
Li Zhao ◽  
Pei Quan Guo ◽  
Yan Ke Cao ◽  
Xiao Wei Wang ◽  
Pu Zhang
Keyword(s):  
Development Strategy ◽  
High Speed ◽  
Cutting Tool ◽  
New Technologies ◽  
Green Manufacturing ◽  
Dry Cutting ◽  
Coating Technology ◽  
New Type ◽  
Green Manufacturing Technology ◽  
Important Significance

As a new type of green manufacturing technology, high speed dry cutting technology to implement human sustainable development strategy has important significance. The research reviews the features and advantages of the high speed dry cutting technology, and analyzes the key technologies (including machine tools, cutting tool and coating technology to achieve high-speed dry cutting).

Research on Wear Property of Tool Flank by Dry Cutting of Austempering Ductile Iron

2011 ◽  
Vol 188 ◽  
pp. 38-42
Author(s):  
Dong Dong Wan ◽  
Xu Hong Guo ◽  
Chi Hong Wang
Keyword(s):  
Cutting Tool ◽  
Flank Wear ◽  
Cubic Boron Nitride ◽  
Cutting Tools ◽  
Cutting Parameters ◽  
Wear Property ◽  
Dry Cutting ◽  
Quenching Temperature ◽  
Tool Flank Wear ◽  
Heat Treated

Three different cutting tools (ceramics CC6050, cubic boron nitride CB7025, carbide GC2025) were used for dry cutting of 3 groups of ADI which were heat-treated separately under different quenching temperatures. With the unified cutting parameters, the wear of tool flank of each cutter was studied and the main influencing factors of the wear were analyzed. Results showed that when the cutting parameters ap =0.2mm, f =0.16mm/r, vc =108m/min and the cutting tool was determined, the higher the quenching temperature was the lower the hardness of the test bars were and the tool flank wear was less; When the quenching temperature was determined, the more the produced BUE (build up edge) of the cutting tool was the less the tool flank wear was.

Investigation of Temperature at Tool-Chip Interface in Turning Using Two-Color Pyrometer

2002 ◽  
Vol 124 (2) ◽  
pp. 200-207 ◽  
Author(s):  
Mahfudz Al Huda ◽  
Keiji Yamada ◽  
Akira Hosokawa ◽  
Takashi Ueda
Keyword(s):  
Cutting Tool ◽  
Water Soluble ◽  
Small Object ◽  
The Finite Element Method ◽  
Dry Cutting ◽  
Fiber Coupler ◽  
Aisi 1045 ◽  
Steel Aisi ◽  
Color Pyrometer ◽  
Good Agreement

A technique for measuring temperature at the interface between a cutting tool and a chip is developed. A two-color pyrometer with fused fiber coupler is applied to the temperature measurement of the tool-chip interface in dry and wet turning. By using this pyrometer, it is possible to measure the temperature of a very small object without emissivity affecting the results. A translucent alumina sintered under HIP is used as the cutting tool, and an annealed carbon steel AISI 1045 is used as the workpiece. Water-soluble coolant is introduced onto the rake surface of the tool. The technique developed is suitable for measuring temperature at tool-chip interface, either in dry or wet cutting conditions. The effect of coolant on the temperature is small, since temperature reduction is only about 3 percent compared with the temperature in dry cutting. The temperature distributions on the cutting tool and the work material are analyzed using the finite element method. Good agreement is obtained between the analytical results and experimental ones.

Cutting Performance of Al2O3/TiC/TiN Nanocomposite Tools

2010 ◽  
Vol 443 ◽  
pp. 318-323 ◽  
Author(s):  
Han Lian Liu ◽  
Chuan Zhen Huang ◽  
Bin Zou
Keyword(s):  
High Speed ◽  
Cutting Tool ◽  
Tool Material ◽  
High Hardness ◽  
Hardened Steel ◽  
Cutting Performance ◽  
Machining Parameters ◽  
Dry Cutting ◽  
Ceramic Cutting Tool ◽  
Multi Phase

A multi-scale and multi-phase nanocomposite ceramic cutting tool material Al2O3/TiC/TiN(LTN) with high comprehensive mechanical properties has been successfully fabricated by means of adding micro-scale TiC and nano-scale TiN particles. The cutting performance and wear mechanisms of this advanced ceramic cutting tool were researched by turning two kinds of hardened steel 40Cr and T10A respectively. Compared with the commercial ceramic tool LT55, LTN showed a superior wear resistance with certain machining parameters. The machining tests indicated that the new materials tool is suitable for continuously dry cutting of hardened steel with high hardness at high speed.

EFFECT OF MULTILAYER PROTECTIVE COATING ON THE THERMAL FIELD DYNAMICS IN THE CUTTING TOOL DURING MACHINING

2020 ◽  
Vol 24 (1) ◽  
pp. 81-90
Author(s):  
Alexander Goncharov ◽  
Andrei Yunda ◽  
Evgenii Mironenko ◽  
Liudmila Vasilyeva ◽  
Dmitrii Belous
Keyword(s):  
Protective Coating ◽  
Thermal Field ◽  
Cutting Tool
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