Temat: micromachine - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Grinding and finishing sculptured surfaces using an innovative multitool head with independent pneumatic drive
Autorzy:: Baran, J.
Plichta, J.
Powiązania:: https://bibliotekanauki.pl/articles/99464.pdf
Data publikacji:: 2012
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: tribology
friction
grinding
polishing
interchangeable abrasive discs
sculptured surfaces
micromachine
Opis:: The paper presents the concept and prototypes of multitool grinding and polishing head with independent pneumatic drive for grinding and finishing large free form surfaces (FFS). Such a head facilitates selection of elastic abrasive discs, grinding process parameters and conditions, as well as proper shaping of the marks of the workpiece surface geometric structure.
Źródło:: Journal of Machine Engineering; 2012, 12, 4; 7-14
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Surface treatment for improvement of coefficient of friction on sliding surfaces
Autorzy:: Tanabe, I.
Soe, Y. H.
Iyama, T.
Powiązania:: https://bibliotekanauki.pl/articles/99784.pdf
Data publikacji:: 2012
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: tribology
friction
micromachine
laser machining
surface treatment
DLC
stable behavior
Opis:: Recently, many micro structure products are used for compact, high precision and others functions in the field of measuring instruments, medical instruments, information processing devices and so on. However, in the small sliding parts of these products, the surface contact pressure becomes lowered and then, higher adhesive force occurs, resulting larger coefficient of friction. On the other hand, in the field of machine tools, lubrication free sliding parts are also demanded for eco-friendly. In this study, the surface treatment for improvement of coefficient of friction for both light load and heavy load applications are investigated. When laser ray is applied on stainless steel surface, CrO2 layer with small concaves like dimple is generated. This CrO2 layer is used in light load applications. Next, TiAlN and DLC coating are being used on cutting tools for reducing coefficient of friction and cutting heat. Therefore, these coating materials are used for heavy load and oil free applications. The improvement of coefficient of friction and life of coating are investigated by experiments. It was concluded from the results that; (1) Coefficient of friction for light load application can be reduced by coating CrO2 layer. (2) Coefficients of friction for heavy load application were reduced by coating TiAlN and DLC layer. (3) Life of both CrO2 and DLC layers are sufficiently long for practical applications at light load and heavy load respectively.
Źródło:: Journal of Machine Engineering; 2012, 12, 1; 7-17
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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