Results 171 to 180 of about 698 (204)
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Precise local deformation control for UHSS thin-walled component in roll forming
Journal of Manufacturing ProcessesJianguo Cao, Xudong Zhu, Rongguo Zhao
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Investigation on hygro-thermo-mechanical behavior of a UHSS gasket under radial mechanical loads
Mechanics of Advanced Materials and Structures, 2021The hygro-thermo-mechanical behavior of a ultra-high strength steel (UHSS) gasket under radial mechanical loads is investigated.
Zhi-Jian Wang +4 more
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Design parameter investigation of cooling systems for UHSS hot stamping dies
The International Journal of Advanced Manufacturing Technology, 2013Die design is one of the key technologies for hot stamping technology, and the quality of the forming part is influenced by the structure design of the cooling system parameters. Cooling pipe size, distance between cooling pipes, and depth from cooling pipe to die surface are the most important structure parameters, and the final microstructure and ...
Xu Ying, Shan Zhong-de
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Experimental investigation on galling performance of tool steel in stamping of UHSS sheets
International Journal of Precision Engineering and Manufacturing, 2014The objective of this study is to experimentally investigate the effect of surface roughness parameters on the galling performance of tool steel used in the stamping of ultra-high-strength steel (UHSS) sheets. The galling performance of uncoated and TiAlCrN coated AISI D2 tool steel was evaluated against a 1.4 mm-thick dual phase (DP) 980 UHSS sheet ...
Hong-Seok Choi +5 more
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Hydrogen assisted cracking of UHSS for military aerospace applications
2018Ultra-High Strength Steels (UHSS) are the predominantly used material on aircraft landing gear systems, to combat the high mechanical and partly impacting loads and to match the criteria of light weight design in airplane engineering. Legacy systems have been commonly manufactured from the low alloyed steel AISI 4340, also known as 36CrNiMo4 with the ...
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Study on the Production of Ultra High Strength Steel (UHSS) in Thin Slab Caster
SAE Technical Paper Series, 2014<div class="section abstract"><div class="htmlview paragraph">Automobile manufacturers have started using ultra high strength steel (UHSS) in lower thicknness to reduce the weight of their car and improved passenger safety. As a result steel manufacturers are facing continuous challenges to develop Ultra high strength steels (UHSS) in lower
Pradip K Patra +3 more
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Process Adjustments to Improve Fracture Behaviour in Resistance Spot Welds of EHSS and UHSS
Welding in the World, 2004In recent years new types of sheet steels, combining higher strength with better ductility have been developed. Some of these steels have shown limited weldability compared to mild steels. The hardness of the welds for these steels stretches from 380 HV for DP 600 to approximately 500 HV for TRIP (Transformation Induced Plasticity) and boron steels ...
M. Mimer, L. E. Svensson, R. Johansson
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The effect of tooling design parameters on web-warping in the flexible roll forming of UHSS
AIP Conference Proceedings, 2013To reduce weight and improve passenger safety there is an increased need in the automotive industry to use Ultra High Strength Steels (UHSS) for structural and crash components. However, the application of UHSS is restricted by their limited formability and the difficulty of forming them in conventional processes. An alternative method of manufacturing
Jingsi Jiao +4 more
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Hydrogen Dependent Material Properties of UHSS for Aerospace Applications
2017Quantitative investigations of hydrogen dependent properties of aircraft landing gear materials have only scarcely been carried out in the past. They are essential for respective component life time assessments. To better understand the behavior of these landing gear materials in a hydrogen rich environment, specimens were charged in the condition as ...
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