Results 91 to 100 of about 79,057 (223)

Wear Behavior of Uncoated and Coated Tools under Complex Loading Conditions [PDF]

open access: yes, 2012
In automotive industry crash relevant structures of the body in white are manufactured using the direct hot stamping process. Due to the high temperature difference between the hot blank and the cold tool surfaces and the relative movement between the ...
M. Merklein, M. Wieland
core  

Analýza odpružení výtažku nepravidelného tvaru z různých materiálů s využitím metody konečných prvků [PDF]

open access: yes, 2012
Paper concerns drawing operation including related consequent springback of intricate shape stamping from thin sheet-metal – internal reinforcement of car bodyshell B-pillar in order to keep after drawing process the dimensions and tolerances of stamping
Tiller, Petr, Čada, Radek
core  

Investigation on Laser Weldability of a 2.1 GPa-Grade Hot Stamping Steel with Medium Carbon Content

open access: yesMetals
This investigation aimed at evaluating the weldability of a 2.1 GPa-grade hot stamping steel (HSS) containing 0.40 wt.% carbon using laser butt welding.
Jiming Huang   +3 more
doaj   +1 more source

Characterization of graphite polyurethanes composite from renewable based oils [PDF]

open access: yes, 2020
This thesis aims to evaluate the characterization of graphite polyurethane composite from renewable based oils. Virgin cooking oil (VCO) as a renewable resource is the main substance in fabricating the renewable polyurethane (PU) and its graphite as
Kamarudin, Mohamad Saddam
core  

Effects of Tempering Condition on the Microstructure and Mechanical Properties of 30MnB5 Hot-Stamping steel

open access: yesKorean Journal of Metals and Materials, 2018
The effects of tempering condition on the microstructure and mechanical properties of 30MnB5 hot stamping steel were investigated in this study. Before the tempering, hot-stamped 30MnB5 steel was composed of only α′-martensite microstructure without ...
Junyeong Jeong   +5 more
semanticscholar   +1 more source

An Investigation, Using Standard Experimental Techniques, to Determine FLCs at Elevated Temperature for Aluminium Alloys [PDF]

open access: yes, 2012
An experimental procedure has been developed for the determination of FLCs at elevated temperatures. The GOM ARGUS system was employed for measuring surface strain based on pre-applied grids (pattern), and limit strains were determined according to the ...
Balint, D   +6 more
core  

An economic analysis of aluminum sheet production and prospects of aluminum for the automotive unibody [PDF]

open access: yes, 2000
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2000.Includes bibliographical references (p. 48).In order to lower fuel consumption and reduce emissions, aluminum is being considered as an alternative to ...
Hoegh, Harald, 1976-
core  

Modelling of phase transformation in hot stamping of boron steel

open access: yes, 2011
Knowledge of phase transformations in a hot stamping and cold die quenching process (HSCDQ) is critical for determining physical and mechanical properties of formed parts. Currently, no modelling technique is available to describe the entire process. The
Cai, Jingqi, Cai, Jingqi
core   +1 more source

Influence of Quenching and Partitioning Process on Microstructure and Mechanical Properties of a Novel 1 800 MPa Hot Stamping Steel

open access: yesJournal of Mechanical Engineering, 2019
At present, hot stamping forming steel has some potential problems, such as poor plasticity, low impact toughness, limited bending energy absorption, which need to be sloved by some new technologies to make it serve the automobile lightweigh better.
王晓笋   +7 more
semanticscholar   +1 more source

Experimental and computer thermodynamics evaluations of an Al-Si-Coating on a quenchable steel

open access: yesREM: International Engineering Journal
High-strength steels are commonly used in the automobile industry in order to reduce the weight of the vehicles. However, a technical difficulty appears due to the need of hot stamping of the components, which leads to oxidation.
Vicente Braz Trindade   +1 more
doaj   +1 more source

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