scholarly journals Development of novel cutting tools with dimple textured surfaces for dry machining of aluminum alloys

2017 ◽  
Vol 14 ◽  
pp. 111-117 ◽  
Author(s):  
Tatsuya Sugihara ◽  
Priya Singh ◽  
Toshiyuki Enomoto
2012 ◽  
Vol 565 ◽  
pp. 424-429 ◽  
Author(s):  
Tatsuya Sugihara ◽  
Toshiyuki Enomoto ◽  
Satoshi Yukinaga

In the cutting processes, improvements of anti-adhesive properties and wear resistance of cutting tools are strongly required for increasing a cutting tool life. In order to meet these requirements, we adopted surface engineering approach, namely, a functionalization of tool surfaces by textures. In our previous researches, we have developed two types of cutting tool with textured surface, namely, cutting tool with nano/micro textured surface and cutting tool with micro stripe textured surface, in the hopes of improving anti-adhesive properties in cutting of aluminum alloys. As a result, we have clarified that the developed tools significantly decrease chip adhesion on the tool surface by a series of face milling experiments for aluminum alloys. In this paper, the previously developed tools with textured surfaces were applied to the cutting of steel material (S53C) and the wear resistances of the textured surfaces were evaluated. As a result, it was found that the micro stripe texture improves the wear resistance significantly. Moreover, the mechanism of improving wear resistance by the textured surface was also discussed.


2018 ◽  
pp. 35-48
Author(s):  
Mohammed Nouari ◽  
Badis Haddag ◽  
Abdelhadi Moufki ◽  
Samir Atlati

Author(s):  
Mitsuru Hasegawa ◽  
Tatsuya Sugihara

Abstract In cutting of Ti-6Al-4V alloy, the cutting speed is limited since a high cutting temperature leads to severe tool wear and short tool life, resulting in poor production efficiency. On the other hand, some recent literature has reported that various beneficial effects can be provided by forming micro-textures on the tool surface in the metal cutting process. In this study, in order to achieve high-performance machining of Ti-6Al-4V, we first investigated the mechanism of the tool failure process for a cemented carbide cutting tool in high-speed turning of Ti-6Al-4V. Based on the results, cutting tools with micro textured surfaces were developed under the consideration of a cutting fluid action. A series of experiments showed that the textured rake face successfully decreases the cutting temperature, resulting in a significant suppression of both crater wear and flank wear. In addition, the temperature zone where the texture tool is effective in terms of the tool life in the Ti-6Al-4V cutting was discussed.


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

2015 ◽  
Vol 66 (1) ◽  
pp. 98-101 ◽  
Author(s):  
Miloš Madić ◽  
Miroslav Radovanović ◽  
Dušan Petković ◽  
Bogdan Nedić

Abstract Machining of aluminum and its alloys requires the use of cutting tools with special geometry and material. Since there exists a number of cutting tools for aluminum machining, each with unique characteristics, selection of the most appropriate cutting tool for a given application is very complex task which can be viewed as a multi-criteria decision making (MCDM) problem. This paper is focused on multi-criteria analysis of VCGT cutting inserts for aluminum alloys turning by applying recently developed MCDM method, i.e. weighted aggregated sum product assessment (WASPAS) method. The MCDM model was defined using the available catalogue data from cutting tool manufacturers.


Author(s):  
Youqiang Xing ◽  
Jianxin Deng ◽  
Xingsheng Wang ◽  
Kornel Ehmann ◽  
Jian Cao

To improve the friction conditions and reduce adhesion at the tool's rake face in dry cutting of aluminum alloys, three types of laser surface textures were generated on the rake face of cemented carbide tools. Orthogonal dry cutting tests on 6061 aluminum alloy tubes were carried out with the textured and conventional tools (CT). The effect of the texture geometry on the cutting performance was assessed in terms of cutting forces, friction coefficient, chip compression ratio, shear angle, tool adhesions, chip morphology, and machined surface quality. The results show that the textured tools can improve the cutting performance at low cutting speeds, and that the tool with rectangular type of textures is the most effective.


2013 ◽  
Vol 309 ◽  
pp. 35-42 ◽  
Author(s):  
Gyula Varga ◽  
János Kundrák

Modern machining processes continuously face cost pressures and high quality expectations. To remain competitive a company must continually identify cost reduction opportunities in production, exploit economic opportunities, and continuously improve production processes. A key technology that represents cost saving opportunities related to cooling lubrication, and simultaneously improves the overall performance of cutting operations, is dry machining. The elimination of coolants or significant reduction in cooling lubricants affects all components of a production system. A detailed analysis and adaptation of cutting parameters, cutting tools, machine tools and the production environment is mandatory to ensure an efficient process and successfully enable dry machining. Case study is shown for examination of cylindricity error and surface roughness of helical milling machined surfaces by environmentally conscious way.


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