Results 101 to 110 of about 79,057 (223)

Analysis of international expansion as a Tier 2 supplier to the auto industry [PDF]

, 1997
Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1997, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1997.Includes bibliographical references (p.
Greenstein, David Michael, Hsu, Jennifer Ying   +1 more
core  

Effects of Fe diffusion driven by thermal history on the tribological behaviour of Al–Si coated 22MnB5 under varying load conditions in hot stamping

Journal of Materials Research and Technology
With the advancement of the automotive industry, the demand for superior mechanical properties has inevitably driven changes in steel sheet thickness. Consequently, considerable attention has been given to variations in thermal history that arise due to ...
Min-Ki Ji, Hyunsung Son, Gyu Hyeon Shim, Ho Seon Ahn, Tea-Sung Jun   +4 more
doaj   +1 more source

Procedure for the Experimental Determination of a Forming Limit Curve for Usibor 1500 P

, 2007
International audienceUSIBOR 1500 P® is a coated C-Mn steel, micro-alloyed with boron, with excellent processing properties in hot stamping, both in terms of formability, quenchability and surface protection, and leading to superior mechanical properties
Chastel, Yvan, Dahan, Yoann, Duroux, Patrick, Hein, Philipp, Massoni, Elisabeth, Wilsius, Joël   +5 more
core   +1 more source

Impact of various heat treatment processes and welding speeds on the mechanical properties and microstructures of soft/hard composite joints

Frontiers in Materials
There is a certain contradiction between the formability and strength of auto parts. In this work, the whole-process processing technology of hot stamping soft steel was designed, and 500 MPa grade mild steel (500HS) with uniform microstructure was ...
Yang Yu, Zhao Wang, Biao Chen, Shuchao Zhang, Jinliang Du   +4 more
doaj   +1 more source

Space station power semiconductor package [PDF]

A package of high-power switching semiconductors for the space station have been designed and fabricated. The package includes a high-voltage (600 volts) high current (50 amps) NPN Fast Switching Power Transistor and a high-voltage (1200 volts), high ...
Balodis, Vilnis, Berman, Albert, Devance, Darrell, Ludlow, Gerry, Wagner, Lee   +4 more
core   +1 more source

Prediction of Residual Stresses During the Hot Forging Process of Spherical Shells Based on Microstructural Evolution

Journal of Manufacturing and Materials Processing
A unified viscoplastic constitutive model based on internal physical variables was proposed to predict the viscoplastic mechanical behavior and microstructure evolution of metals during hot forging.
Yupeng Wu, Jiasheng Li, Zhaocheng Wei, Yuxin Fang, Hongxia Li, Ming Huang   +5 more
doaj   +1 more source

Growing Ohio's Green Energy Economy [PDF]

, 2009
Provides an overview of the state's solar, wind, biomass, and geothermal energy and fuel cell industries and assesses their economic contribution and potential for growth.
Amy Gomberg, Wren Kruse
core  

Ladění tvaru a rozměrů výtažku nepravidelného tvaru pomocí simulací procesu tažení [PDF]

, 2011
The paper deals with the process of creation of model of intricate shape stamping from thin sheet-metal – internal reinforcement of car bodyshell B-pillar for flat forming simulations and subsequently with the procedure of its critical dimensions tuning ...
Tiller, Petr, Čada, Radek
core  

Effect of austenitizing time on hydrogen embrittlement resistance of a 2.0 GPa grade hot-stamping steel

Journal of Materials Research and Technology
Hot-stamping steel has become a core material for automotive lightweighting and safety enhancement due to its excellent strength and safety characteristics.
Yi Feng, Feng Guo, Jianing Bao, Shuaikang Zhu, Junping Zhang, Guangjie Huang, Zhihui Cai   +6 more
doaj   +1 more source

An experimental and numerical investigation of the effect of macro-textured tool surfaces in hot stamping [PDF]

, 2015
Dean, TA, Lin, J, Politis, DJ, Zheng, K
core   +1 more source