scholarly journals Analysis of the Chip Geometry in Dry Machining of Aeronautical Aluminum Alloys

2017 ◽  
Vol 7 (2) ◽  
pp. 132 ◽  
Author(s):  
Francisco Vilches ◽  
Lorenzo Hurtado ◽  
Francisco Fernández ◽  
Carolina Gamboa
2018 ◽  
pp. 35-48
Author(s):  
Mohammed Nouari ◽  
Badis Haddag ◽  
Abdelhadi Moufki ◽  
Samir Atlati

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Tatsuhiko Aizawa ◽  
Eijirou Masaki ◽  
Eiji Morimoto ◽  
Yoshio Sugita

2004 ◽  
Vol 187 (1) ◽  
pp. 70-76 ◽  
Author(s):  
Haruyo Fukui ◽  
Junya Okida ◽  
Naoya Omori ◽  
Hideki Moriguchi ◽  
Keiichi Tsuda

Materials ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1260 ◽  
Author(s):  
Yezika Sánchez Hernández ◽  
Francisco Trujillo Vilches ◽  
Carolina Bermudo Gamboa ◽  
Lorenzo Sevilla Hurtado

The Ti6Al4V alloy is included in the group of difficult-to-cut materials. Segmented chips are generated for a wide range of cutting parameters. This kind of chip geometry leads to the periodic variation of machining forces, tool vibrations, and work part-tolerance inaccuracies. Therefore, the analysis of chip morphology and geometry becomes a fundamental machinability criterion. However, few studies propose experimental parametric relationships that allow predicting chip-geometry evolution as a function of cutting parameters. In this work, an experimental analysis of the influence of cutting speed and feed rate on various chip-geometric parameters in dry machining of the Ti6Al4V alloy was carried out. In addition, the chip morphology and chip microstructure were studied. A clear dependence of certain chip-geometric parameters on the cutting parameters studied was found. From the experimental data, several parametric relationships were developed. These relationships were able to predict the evolution of different geometric parameters as a function of cutting speed and feed, within the tested range of values. The differences between the proposed models and the experimental data were also highlighted. These parametric equations allowed quantifying the value of parameters in which the trend was clear.


Procedia CIRP ◽  
2014 ◽  
Vol 24 ◽  
pp. 68-73 ◽  
Author(s):  
Tatsuya Sugihara ◽  
Yuki Nishimoto ◽  
Toshiyuki Enomoto

2006 ◽  
Vol 49 (1) ◽  
pp. 83-89 ◽  
Author(s):  
Hiromi YOSHIMURA ◽  
Toshimichi MORIWAKI ◽  
Nobuo OHMAE ◽  
Tetsuo NAKAI ◽  
Toshiro SHIBASAKA ◽  
...  

2015 ◽  
Vol 40 ◽  
pp. 241-248 ◽  
Author(s):  
Tatsuya Sugihara ◽  
Yuki Nishimoto ◽  
Toshiyuki Enomoto

Author(s):  
Hiromi YOSHIMURA ◽  
Toshimichi MORIWAKI ◽  
Nobuo OHMAE ◽  
Tetsuo NAKAI ◽  
Toshiro SHIBASAKA ◽  
...  

2013 ◽  
Vol 135 (4) ◽  
Author(s):  
Pierre Faverjon ◽  
Joël Rech ◽  
René Leroy

Due to the increasing emphasis on environmental constraints, industry works on how to limit the massive use of lubricants by using the micro-pulverization of oil in machining processes and, especially, in the machining of aluminum alloys for the automotive industry. The success of a machining operation is dependent on a friction coefficient and weak adhesion with the tool-work material interface. This paper aims at identifying the influence of cutting tool substrates (high speed steel (HSS), carbide, polycrystalline diamond (PCD)) and of minimum quantity lubrication (MQL) on the friction coefficient and on adhesion in tribological conditions corresponding to the ones observed in the cutting of aluminum alloys (sliding velocity: 20-1500 m/min). An open ball-on-cylinder tribometer, especially designed to simulate these tribological conditions through Hertz contact, has been used. It has been shown that HSS and carbide substrates lead to large friction coefficients (0.8–1) and substantial adhesion in dry conditions, whereas PCD substrates would lead to lower average friction coefficient values (0.4–0.5) and very limited adhesion, which proves the necessity of using PCD tools in the dry machining of aluminum. It has also been shown that the application of MQL leads to a large decrease of the friction coefficient (0.1–0.2) and eliminates almost all traces of adhesions on pins for any substrates, which shows that MQL is an interesting compromise between dry machining and flood cooling.


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