Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Tatsuya Funazuka"'
Publikováno v:
Metals, Vol 14, Iss 7, p 755 (2024)
With the aim of achieving a sustainable society with green manufacturing, every metal-forming process has been changed to a dry process with the use of limited lubricants via regulation. In parallel, die materials must have sufficient wear resistance
Externí odkaz:
https://doaj.org/article/3aef34f234bf4fbdb45e3266e04f598f
Publikováno v:
Nanomaterials, Vol 14, Iss 4, p 363 (2024)
A new solid lubrication method was proposed for dry forging of pure titanium with high reduction in thickness. A free-carbon tribofilm was formed in situ at the hot spots on the contact interface to protect the die surfaces from severe adhesion of wo
Externí odkaz:
https://doaj.org/article/9f7846e1f13447a6847d2b1a574693c5
Publikováno v:
Friction, Vol 11, Iss 7, Pp 1212-1224 (2022)
Abstract The aluminum alloys belonging to the 7000 series are high-strength alloys used in a wide variety of products for weight reduction. They are primarily used in the field of transportation and aerospace. Among these, the A7075 alloy has the hig
Externí odkaz:
https://doaj.org/article/a3857a2590214b1480af203e9cdda2ab
Publikováno v:
Applied Mechanics, Vol 3, Iss 3, Pp 724-739 (2022)
The carbon-supersaturated SKD11 punch was proposed as a green, or, a galling-free, long-life and low energy-consuming forging tool of pure titanium and β-titanium alloy that works with low friction and less work hardening and without galling. The re
Externí odkaz:
https://doaj.org/article/a70f6ce37a5c495fa0bb97eefae60628
Publikováno v:
Micromachines, Vol 13, Iss 11, p 2001 (2022)
To apply conventional forming processes to microscale processing, the influence of size effects caused by material properties and friction effects must be considered. Herein, the effects of tool surface properties, such as punch surface texture, on m
Externí odkaz:
https://doaj.org/article/3797c3470d84415f9c62c6ba664c951e
Publikováno v:
Lubricants, Vol 10, Iss 9, p 203 (2022)
A new near-net forging procedure of titanium and titanium alloys was proposed by using a carbon-supersaturated punch and die. Due to the in situ formation of carbon-based tribofilm on the contact interface between the dies and work materials, a low f
Externí odkaz:
https://doaj.org/article/1dd9f30415fa4955af2bf57e1e0dbfce
Publikováno v:
Micromachines, Vol 12, Iss 11, p 1299 (2021)
In order to apply conventional forming processes at the micro scale, the size effects caused by material properties and frictional effects must be taken into account. In this research, the effects of tool surface properties such as punch surface groo
Externí odkaz:
https://doaj.org/article/3ce64de0fbb94689bd3418a448cb6678
Publikováno v:
Crystals, Vol 11, Iss 11, p 1316 (2021)
Instrumented indentation tests are an efficient approach for the characterization of stress–strain curves instead of tensile or compression tests and have recently been applied for the evaluation of mechanical properties at elevated temperatures. I
Externí odkaz:
https://doaj.org/article/06c6a348c6e045518f33ff85b1e5518b
Autor:
Pavaret Preedawiphat, Numpon Mahayotsanun, Sedthawatt Sucharitpwatskul, Tatsuya Funazuka, Norio Takatsuji, Sujin Bureerat, Kuniaki Dohda
Publikováno v:
Applied Sciences, Vol 10, Iss 14, p 4767 (2020)
The precision and accuracy of the final geometry in micro-parts is crucial, particularly for high-value-added metallic products. Micro-extrusion is one of the most promising processes for delivering high-precision micro-parts. The curving tendency ob
Externí odkaz:
https://doaj.org/article/492602c211d04a7dbf03f1012a8acb2a
Publikováno v:
Key Engineering Materials. 926:409-415
Aluminum alloys in the 7000 series are high-strength alloys that are used in a wide variety of products in the transportation equipment and aerospace fields to reduce weight. In particular, the A7075 alloy has the highest strength and is expected to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e32ccf0c3f11ef40631897c98d122a78
https://doi.org/10.4028/p-6bfd8v
https://doi.org/10.4028/p-6bfd8v