Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Wan-Gi Cha"'
Publikováno v:
Production Engineering. 12:691-702
Beads that alter the geometry of sheet parts can increase the stiffness of deep drawn sheet parts. The locations and geometry of the beads have a great influence on the stiffness of the parts. The design of beads is the result of numerous bead optimi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed409319c6d08ca4ae6e9b301dc6a9de
https://doi.org/10.1007/s11740-018-0850-z
https://doi.org/10.1007/s11740-018-0850-z
Publikováno v:
Wear. :17-28
Shear-cutting is one of the most important manufacturing processes involving sheet metal. The local pressure on the tools as well as the sliding speed between tools and work piece are much larger in shear cutting than in typical forming processes suc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::475479962601fb548b4ee6ec451a134f
https://doi.org/10.1016/j.wear.2017.05.019
https://doi.org/10.1016/j.wear.2017.05.019
Autor:
Naksoo Kim, Wan-gi Cha
Publikováno v:
Metals and Materials International. 20:841-850
With the rising interest in lightweight construction, the usage of high strength steel has increased remarkably during the last years. Unfortunately, there is manufacturing problem: high strength steel has a higher occurrence rate of cracks than mild
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39574dc6c204053b0be81054f85e9e0b
https://doi.org/10.1007/s12540-014-5008-8
https://doi.org/10.1007/s12540-014-5008-8
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 15:1075-1080
Aluminum wheel flow forming is a combined technique of spinning and flow forming, which produces parts with complex axisymmetric geometries and reduces wall thickness. During the process, among many kinds of defects generated, a newly defined defect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddf040db3169a17722262f903bdfb5b8
https://doi.org/10.1007/s12541-014-0439-1
https://doi.org/10.1007/s12541-014-0439-1
Autor:
Wan-gi Cha, Naksoo Kim
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 14:1527-1533
Steel has been developed to have higher strength than ever before, especially for use of the lightweight structures of automobile. It needs to confirm spring back defects of cold roll forming of high strength steel, in which a sheet metal strip is gr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f60f56be7eb75f30974dc6efe1975eb8
https://doi.org/10.1007/s12541-013-0206-8
https://doi.org/10.1007/s12541-013-0206-8
Publikováno v:
Journal of physics / Conference Series, 896 (1), Art.Nr. 012005
Beads are applied to deep drawn sheet metal parts to increase its stiffness. In order to form the bead, a two-stage manufacturing process including at least deep drawing and beading is performed. Thus, reductions of sheet metal thickness and conseque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fab3a181f125175a13b1f80e2bf5e7c7
https://publikationen.bibliothek.kit.edu/1000076512/5950836
https://publikationen.bibliothek.kit.edu/1000076512/5950836
Publikováno v:
Advanced Materials Research. 445:73-78
In a roll forming process, a desired profile is produced through continuous bending of a sheet metal strip. Occurrences of spring back, twist, and bow are major defects in roll formed profiles. We developed a dedicated analysis program based on the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23116b172b2b19a6502cd669d8a68bdb
https://doi.org/10.4028/www.scientific.net/amr.445.73
https://doi.org/10.4028/www.scientific.net/amr.445.73
Publikováno v:
Journal of physics / Conference Series, 734 (3), Art.Nr.: 032077
Beads are used in deep drawn sheet metal parts for increasing the part stiffness. Thus, reductions of sheet metal thickness and consequently weight reduction can be reached. Style guides for types and positions of beads exist, which are often applied
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f45f8a35af5e6e533a2147b1b583e4a
https://publikationen.bibliothek.kit.edu/1000060554/4280853
https://publikationen.bibliothek.kit.edu/1000060554/4280853
Publikováno v:
AIP Conference Proceedings.
In this study, we studied formability of PET/PVC laminated sheet metal which named VCM (Vinyl Coated Metal). VCM offers various patterns and good-looking metal steel used for appliances such as refrigerator and washing machine. But, this sheet has pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a52e3e3a66c261a7defe895a74cd3e4d
https://doi.org/10.1063/1.4850047
https://doi.org/10.1063/1.4850047
Publikováno v:
AIP Conference Proceedings.
In the cold roll forming process, the sheet metal strip is gradually and successively bent into a desired profile. Occurrences of spring back, twist, and bow are major defects in roll formed profiles. We developed a dedicated analysis program based o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6068e8203a54e849eaf8302f98bdc887
https://doi.org/10.1063/1.3623637
https://doi.org/10.1063/1.3623637