Results 111 to 120 of about 1,565 (219)

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

open access: yesJournal 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   +4 more
doaj   +1 more source

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

open access: yesFrontiers 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   +4 more
doaj   +1 more source

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

open access: yesJournal 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   +5 more
doaj   +1 more source

Design of hot stamping tools with cooling system

open access: yes, 2007
Hot stamping with high strength steel is becoming more popular in automotive industry. In hot stamping, blanks are hot formed and press hardened in a water-cooled tool to achieve high strength.
Hoffmann, H.; So, H.; Steinbeiss, H.
core   +1 more source

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

open access: yesJournal 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   +6 more
doaj   +1 more source

Microstructural evolution of Zn coating on 22MnB5 steel during austenitization and hot stamping processes

open access: yesJournal of Materials Research and Technology
Short-time austenitization of Zn-coated steels plays a critical role in the surface microstructure and corrosion resistance of the final component after hot-deformation.
Lingling Zhang   +7 more
doaj   +1 more source

Hot stamping advanced manufacturing technology of lightweight car body

open access: yes, 2017
This book summarizes the advanced manufacturing technology of original innovations in hot stamping of lightweight car body. A detailed description of the technical system and basic knowledge of sheet metal forming is given, which helps readers quickly ...
He, Bin, Hu, Ping, Ying, Liang
core   +1 more source

Superior oxidation resistance in air during hot stamping of a coating-free press-hardened steel achieved by pre-oxidation

open access: yesJournal of Materials Research and Technology
While coating-free press-hardened steel (CF-PHS) can prevent high-temperature oxidation during hot stamping, it requires high-purity nitrogen protection, which increases the operation cost.
Zhao Li   +4 more
doaj   +1 more source

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