Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Jussi A. Karjalainen"'
Publikováno v:
Key Engineering Materials. :1967-1975
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::637a96ee6b11b0e995dcf2d86fe8177b
https://doi.org/10.4028/www.scientific.net/kem.554-557.1967
https://doi.org/10.4028/www.scientific.net/kem.554-557.1967
Publikováno v:
Key Engineering Materials. 549:333-339
Ultra-high strength steels have been widely used in different industrial applications. It is necessary to understand the behavior of these materials in common forming processes such as air bending. It is known that the bendability of ultra-high stren
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f610e0a6f4e83ac968f59e3d9e8e622
https://doi.org/10.4028/www.scientific.net/kem.549.333
https://doi.org/10.4028/www.scientific.net/kem.549.333
Publikováno v:
Key Engineering Materials. :1359-1364
Extremely high strength of the ultra-high-strength steels leads to increased load factors on the tooling machines and punching tools. This experimental study examines how much convex punch geometry affects cutting forces when punching ultra-high-stre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbe99666d8a2e75c5b46d63ebd719014
https://doi.org/10.4028/www.scientific.net/kem.504-506.1359
https://doi.org/10.4028/www.scientific.net/kem.504-506.1359
Publikováno v:
Key Engineering Materials. :901-906
The use of ultra-high-strength steels (UHS) has become more and more popular within last decade. Higher strength levels provide lighter and more robust steel structures, but UHS-steels are also more sensitive to surface defects (e.g. scratches). Prac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4358557da21252edd15cf757657db706
https://doi.org/10.4028/www.scientific.net/kem.504-506.901
https://doi.org/10.4028/www.scientific.net/kem.504-506.901
Publikováno v:
Key Engineering Materials. :1371-1376
Abrasion resistant (AR) steels offer excellent hardness and strength properties in applications as mining and earth moving machines. As an outcome of high hardness AR steels can be used to produce durable, light-weight and energy saving products. How
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21404d7229f894a7aefbee1d05a39583
https://doi.org/10.4028/www.scientific.net/kem.504-506.1371
https://doi.org/10.4028/www.scientific.net/kem.504-506.1371
Publikováno v:
Key Engineering Materials. 473:267-272
Laser welding is known for its low heat input compared to arc welding methods. This could enable laser welding of sheet metals with lighter fastening solutions and less time-consuming tack welding alternatives. A feasibility study was carried out to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b7d5c323df9e42b54a35828655f6e03
https://doi.org/10.4028/www.scientific.net/kem.473.267
https://doi.org/10.4028/www.scientific.net/kem.473.267
Publikováno v:
Key Engineering Materials. 473:53-60
Utilisation of ultra-high-strength steels (UHS) has increased, particularly in the automotive industry. By using these materials vehicle structures can be lightened. However, one of the problems of UHS is weak formability. Materials fracture easily w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d8746db6d6a0a6cd8cb8ddf3466b713
https://doi.org/10.4028/www.scientific.net/kem.473.53
https://doi.org/10.4028/www.scientific.net/kem.473.53
Autor:
Janne Lämsä, Jussi A. Karjalainen, Antti Järvenpää, Martin Grüner, Kari Mäntyjärvi, Marion Merklein
Publikováno v:
Key Engineering Materials. 473:368-375
In this work laser ablation was used for the determination of residual stress of a formed plate. Manufacturing processes, like bending, create residual stresses in the product and those can be very disadvantageous for fatigue durability. Residual str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::202fda6991a759d301be908c437c9a29
https://doi.org/10.4028/www.scientific.net/kem.473.368
https://doi.org/10.4028/www.scientific.net/kem.473.368
Publikováno v:
Key Engineering Materials. 473:412-419
The Charpy V-notch test is a standardized high strain-rate test which is used to find out behaviour of materials in different temperatures by measuring the amount of energy absorption of a specimen. As a result of the Charpy V-notch test, one gets br
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06ad4c371f68c8d3f251ec69079af0e1
https://doi.org/10.4028/www.scientific.net/kem.473.412
https://doi.org/10.4028/www.scientific.net/kem.473.412
Publikováno v:
International Journal of Material Forming. 2:547-550
In this work, the influence of the cutting method on ultra-high-strength (UHS) steels and work hardened austenite stainless steel with regard to static and fatigue stress conditions was studied. In the experimental tests, tensile test bars and fatigu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d368aad20c1083df482893f78cb0865d
https://doi.org/10.1007/s12289-009-0583-9
https://doi.org/10.1007/s12289-009-0583-9