Autor: Tanabe, I. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Development of lapping tools for mirror-like surface processing of cemented carbide die
Autorzy:: Soe, Y. H.
Tanabe, I.
Iyama, T.
Nishiyama, S.
Powiązania:: https://bibliotekanauki.pl/articles/99601.pdf
Data publikacji:: 2012
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: lapping
die
cemented carbide
mirror-like surface
finishing
Opis:: Recently, cemented carbide dies are used for many industrial products, due to their high stiffness and long life. Electric discharge machining is conventionally used and then, hand lapping is finally undergoes for mirror-like finishing of these products. In privious research, a simple lapping system for only plane surfaces of cemented carbide die was developed. In this study, several lapping tools for lapping of side, edge and corner were developed and evaluated by experiments. The system consists of a lapping tool, lapping vessel and conventional NC milling machine. The lapping vessel is placed on the table of the NC machine and the lapping tool is fitted with the spindle of the NC machine. Cemented carbide work piece is sunk and fitted in the lapping slurry and lapping processing is taken using the developed tools. Each lapping tool consists of a coil spring for supplying lapping pressure and the NC program was made possible to move the lapping head to contact and leave the work surface regularly for catching new grains and dressing. These lapping tools were finally evaluated by experiments. It is concluded from the results that the developed lapping tools were capable of lapping side, edge and corner of the cemented carbide work pieces for mirror-like surface finishing.
Źródło:: Journal of Machine Engineering; 2012, 12, 1; 66-75
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Lapping for mirror-like finish on cylindrical inner and end surfaces using the lathe with linear motor
Autorzy:: Moe, A. L.
Tanabe, I.
Iyama, T.
Nasu, F.
Powiązania:: https://bibliotekanauki.pl/articles/99806.pdf
Data publikacji:: 2010
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: lapping
linear motor lathe
mirror-like surface
high quality
high productivity
Opis:: Lapping is an old traditional machining process that has been useful all along in the human history. Uniform surface finishing by manual hand lapping on cylindrical inner and end surfaces are very difficult. Additionally, the geometrical form accuracy and productivity are lower. In a previous study, the new lapping method for outer cylindrical surface using the lathe with linear motor has been reported. However, this method could not be applied directly for the cylindrical inner and end surfaces. Therefore, lapping for mirror-like finish on cylindrical inner and end surfaces using the lathe with linear motor is investigated. In this study, lapping tool was modified from previous study to be suited for the cylindrical inner and end surfaces. Then, lapping methods for inner and end surfaces were developed for uniform mirror-like finish. Surface roughness and geometrical form accuracy improvement were measured for both surfaces. The optimum conditions for high productivity and high quality mirror-like surfaces were investigated. It was concluded from the results that, the developed lapping system was able to process mirror-like surface on cylindrical inner and end surfaces. Moreover, the optimum conditions for the mirror-like surfaces were revealed experimentally.
Źródło:: Journal of Machine Engineering; 2010, 10, 1; 13-25
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Development of intelligent lapping system estimation of finished surface roughness and its improvement speed
Autorzy:: Iyama, T.
Tanabe, I.
Moe, A. L.
Yoshi, K.
Nasu, F.
Powiązania:: https://bibliotekanauki.pl/articles/99666.pdf
Data publikacji:: 2010
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: abrasive machining
lapping
intelligent finishing
Opis:: The lapping process is one of the traditional finishing processes and generally it is conducted as manual process by skilled worker. The productivity of these manual processes is lower and difficult to control. Hence, we developed an automatic lapping system for moulds and dies. The lapping system consists of simple lapping tools and conventional milling machine. Several materials were machined as mirror like surface using the system. The lapping conditions are usually decided by skilled worker's experience or knowhow. Therefore, in this study, an intelligent lapping system with the optimum conditions calculated by the lapping model was developed. Specifically, the relationship between the finished quality (surface roughness Rz and improvement rate of Rz) and each parameter of the system, Vickers hardness of work piece and lapping head, lapping pressure, grain size, is investigated. Then, an intelligent lapping system is developed. Finally, the HPM31 are machined as confirmatory experiment by developed system with calculated lapping conditions. It is concluded from the result that: (1) The relationship between the surface roughness and lapping parameter was cleared. (2) The intelligent lapping system using the lapping model was developed. (3) The estimated limit surface roughness and improvement rate by calculated condition satisfactorily agreed with the experimental results.
Źródło:: Journal of Machine Engineering; 2010, 10, 1; 5-12
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Lapping system for improvement of geometrical accuracy using lathe machine
Autorzy:: Soe, Y. H.
Tanabe, I.
Iyama, T.
Da Cruz, J. R.
Powiązania:: https://bibliotekanauki.pl/articles/100014.pdf
Data publikacji:: 2012
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: lapping
lathe
deviation of form
high quality
Opis:: The geometrical accuracy of the products are essential for high quality and interchangeability. Lapping processing is mostly using for final improvement of geometrical accuracy. Geometrical accuracy includes cylindricity, circularity and straightness. In this paper, lapping processing using a normal lathe was investigated for improvement of geometrical accuracy. Firstly, normal turning process is taken and then, the lapping process is performed using the same lathe. The lapping tool consists of a lapping head made of polypropylene (PP), a coil spring for supplying lapping pressure and holder for fitting on tool post. Lapping slurry is composed by mixing water, PEO (Polyethylene Oxide) and diamond grain. This lapping slurry is supplied between the work piece and the lapping head during lapping processing. The lapping head is made to contact and leave from work piece in regular intervals for catching new grains and removing chips. The optimum lapping condition was investigated for high productivity and high accuracy by experiments. It is concluded from the results that; (1) The geometrical accuracy were improved by using developed lapping system with ordinary lathe machine. (2) The optimum lapping condition was revealed experimentally. (3) The surface roughness and dimensional accuracy are also improved using this developed lapping system.
Źródło:: Journal of Machine Engineering; 2012, 12, 1; 28-40
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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