Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Hartmut Hoffmann"'
Publikováno v:
CIRP Annals. 69:273-276
Many studies have shown that failure following non-proportional load paths cannot be predicted by a linear Forming Limit Curve (FLC), as the deformation history and a change in loading direction influence the formability and failure mode. In this pap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46958bf59c6b39a4fd3382ce325d58c4
https://doi.org/10.1016/j.cirp.2020.03.009
https://doi.org/10.1016/j.cirp.2020.03.009
Publikováno v:
CIRP Annals. 68:253-256
To convert electric into kinetic energy within an electrical motor emerging magnetic fields have to be amplified by using electrical steels. The efficiency of this energy conversion is determined by the electrical steel’s magnetic properties. Due t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::222bc4b670e50208a30814c12ec7dc8b
https://doi.org/10.1016/j.cirp.2019.04.044
https://doi.org/10.1016/j.cirp.2019.04.044
Publikováno v:
CIRP Annals. 67:265-268
Since an inhomogeneous punch pressure distribution occurs in the Nakajima test, equibiaxial flow curves have been determined solely in the hydraulic bulge test so far. By using an innovative measurement technique, it is possible to determine both the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bfec8bc843167e13fc55a318072d752
https://doi.org/10.1016/j.cirp.2018.04.094
https://doi.org/10.1016/j.cirp.2018.04.094
Publikováno v:
CIRP Annals. 66:293-296
During every kind of sheet metal manufacturing process, thermoelectric voltages and currents result from a temperature rise between tool and sheet metal. Their influence on the process and tool wear behavior has been investigated insufficiently so fa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1534d7a62e7fe98a0732ab9b7ca2315b
https://doi.org/10.1016/j.cirp.2017.04.116
https://doi.org/10.1016/j.cirp.2017.04.116
Publikováno v:
Production Engineering. 10:227-240
Conventional semi-solid-methods offer a variety of options concerning the production of parts with appropriate mechanical properties as well as complex geometries. However, they are only partly suitable for the production of large-area thin-walled co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ade97dc35768b1f5c163b039bc13d19b
https://doi.org/10.1007/s11740-016-0676-5
https://doi.org/10.1007/s11740-016-0676-5
Publikováno v:
CIRP Annals. 64:249-252
A temperature rise occurs in the sheet metal and tool parts due to the dissipation of a large part of plastic work during blanking. The resulting temperature in the shearing zone has various impacts on the process. The correlation between the tempera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99019548c79139e447bb6683105b801f
https://doi.org/10.1016/j.cirp.2015.04.091
https://doi.org/10.1016/j.cirp.2015.04.091
Development of a continuous composite casting process for the production of bilayer aluminium strips
Autor:
Christoph Nerl, Erhard Kaschnitz, Falko Langbein, Wolfram Volk, Hartmut Hoffmann, Martin Wimmer
Publikováno v:
Journal of Materials Processing Technology. 214:1445-1455
A thermal process window to form a stable metallurgical compound of AlSn6Cu and Al99.5 was obtained by initial experiments. A special mould system for a horizontal continuous composite casting process was developed, supported by finite element simula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04582dcf43cf38fb8f8ac482fcf3ba7e
https://doi.org/10.1016/j.jmatprotec.2014.02.018
https://doi.org/10.1016/j.jmatprotec.2014.02.018
Publikováno v:
Advanced Materials Research. :628-640
Round point clinching with rotational tool movement is a novel technique to join endless sheets of same or different metals in a quick and economic way. The main challenges are the asymmetry of the resulting clinch points as well as the non-perpendic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5408d74447a666531be68d329f07d415
https://doi.org/10.4028/www.scientific.net/amr.966-967.628
https://doi.org/10.4028/www.scientific.net/amr.966-967.628
Publikováno v:
Key Engineering Materials. :1039-1046
Due to the development of corrosion-resistant lightweight, todays automotive manufacturers typically use zinc coated sheet metals in the forming process. However, zinc abrasion in industrial presses decreases the process stability and often causes in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08acdf543677645874167a6d0586fe24
https://doi.org/10.4028/www.scientific.net/kem.611-612.1039
https://doi.org/10.4028/www.scientific.net/kem.611-612.1039
Publikováno v:
Materials Characterization. 85:124-133
Austempered ductile iron (ADI) alloyed with 0.42% Mn and 0.72% Cu was heat treated in a mirror furnace and the phase transitions were studied in-situ by neutron diffraction. The heat treatment consisted of austenitisation at 920 °C and isothermal au
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a216da20564d5d7f0dfb16feb7701d99
https://doi.org/10.1016/j.matchar.2013.09.005
https://doi.org/10.1016/j.matchar.2013.09.005