Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Kiichiro Kawamoto"'
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 15, Iss 3, Pp JAMDSM0027-JAMDSM0027 (2021)
Sheet metal forming is one of the important manufacturing technologies to produce metal parts. Tearing and wrinkling are major defects in sheet metal forming, and they should strongly be prevented for the high product quality. A constant blank holder
Externí odkaz:
https://doaj.org/article/ad007a74be1b41a4b8b272158f6e9ce6
Autor:
Masaki YOKOYAMA, Ryoto ISHIZUKI, Satoshi KITAYAMA, Kiichiro KAWAMOTO, Shinji NATSUME, Kazuaki ADACHI, Takahiro NOGUCHI, Toshio OHTANI
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 84, Iss 868, Pp 18-00361-18-00361 (2018)
High strength steel (HSS) have several advantages such as lightweight and high shock absorption. In sheet metal forming of HSS, twist springback occurs remarkably, which results in the low product quality. In addition, major defects such as wrinkling
Externí odkaz:
https://doaj.org/article/fa25254b94e64106ab09129df8f41c66
Autor:
Masaki YOKOYAMA, Satoshi KITAYAMA, Kiichiro KAWAMOTO, Takuya NODA, Takuji MIYASAKA, Yuto ECHIGO
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 84, Iss 863, Pp 18-00162-18-00162 (2018)
In sheet forming, the blank holder force (BHF) has a direct influence on product quality. A high BHF leads to tearing, whereas a low one results in wrinkling. For successful sheet forming, the BHF should be adjusted. Recently, the variable BHF (VBHF)
Externí odkaz:
https://doaj.org/article/f1556125c85847e19517365b20895450
Autor:
Kiichiro KAWAMOTO, Takuji MIYASAKA, Ken YAMAMICHI, Takuya NODA, Satoshi KITAYAMA, Hiroki KOYAMA, Koetsu YAMAZAKI
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 83, Iss 845, Pp 16-00485-16-00485 (2016)
Blank shape minimizing earing, which is trimmed off after forming, is an important issue in sheet metal forming. In addition, blank holder force (BHF) have an influence on the product quality. Recently, variable BHF (VBHF) that the BHF varies through
Externí odkaz:
https://doaj.org/article/48bf8cdf18db436aa9a03da0a9ebcccc
Autor:
Masato OKADA, Satoshi KITAYAMA, Junpei CHIKAHISA, Takeshi YONEYAMA, Kiichiro KAWAMOTO, Ken YAMAMICHI, Yusuke MASATO, Masaya NAKAGAWA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 80, Iss 817, Pp DSM0276-DSM0276 (2014)
This paper proposes a method for determining optimal back-pressure profile in forging using a sequential approximate optimization (SAO). In forging, it is important to minimize an unfilled area for improving the product quality. To achieve this objec
Externí odkaz:
https://doaj.org/article/4a67c02615c04abfa26df848287235b0
Publikováno v:
Journal of Materials Engineering and Performance. 29:4075-4086
Center clamp forming method has been applied to avoid wrinkles in the press forming of a rectangular cup with bottom edge trimming using a continuous woven carbon fiber-reinforced plastic plate. Trimming of a bottom edge during forming is a convenien
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a18af878105cf5c470ecf1c7038ea03
https://doi.org/10.1007/s11665-020-04886-8
https://doi.org/10.1007/s11665-020-04886-8
Autor:
Masaki Yokoyaka, Satoshi Kitayama, Toshio Ohtani, Kazuaki Adachi, Takahiro Noguchi, Ryoto Ishizuki, Shinji Natsume, Kiichiro Kawamoto
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 103:63-75
This paper proposes an approach for twist springback reduction using variable blank holder force (VBHF) trajectory that the blank holder force (BHF) varies through the stroke. In addition, the blank shape is optimized. Therefore, design optimization
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2520c3ba467cdc780246434b78b829d0
https://doi.org/10.1007/s00170-019-03521-8
https://doi.org/10.1007/s00170-019-03521-8
Autor:
Masaki Yokoyama, Takuya Noda, Kiichiro Kawamoto, Satoshi Kitayama, Takuji Miyasaka, Yuto Echigo
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 98:2693-2703
Variable blank holder force (VBHF) that the blank holder force varies through the stroke is recognized as one of the advanced manufacturing technologies for sheet metal forming. On the other hand, slide velocity (SV) that controls the die velocity is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3b98e83984dfbebefdcc975194af2a3
https://doi.org/10.1007/s00170-018-2411-1
https://doi.org/10.1007/s00170-018-2411-1
Autor:
Taisuke Kimura, Daichi Tatsuno, Yuto Echigo, Kiichiro Kawamoto, Takeshi Yoneyama, Masayuki Okamoto
Publikováno v:
Journal of the Japan Society for Technology of Plasticity. 59:123-128
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4176faa254c76fc48e48a118c33547f5
https://doi.org/10.9773/sosei.59.123
https://doi.org/10.9773/sosei.59.123
Autor:
Ryoto Ishizuki, Masaki Yokoyama, Shinji Natsume, Kazuaki Adachi, Takahiro Noguchi, Kiichiro Kawamoto, Satoshi Kitayama, Toshio Ohtani
Publikováno v:
Transactions of the JSME (in Japanese). 84:18-00361
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbe590e02233531e5b6ced3322221ac7
https://doi.org/10.1299/transjsme.18-00361
https://doi.org/10.1299/transjsme.18-00361