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Strengthening Mechanisms of 1H18N9T Austenitic Steel Buildups Created with Cold Forming Processes
Advanced Materials Research, 2007In metal forming processes in the tool-workpiece contact area occur high pressure, surface expansion and elevated temperature. It makes ideal circumstances for braking of the lubricant film that causes a direct contact between metallic surfaces. Such a contact usually leads to buildups creation on the tool surface. These phenomena mainly result product
W. Presz, M. Kaczorowski
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A mesoscopic approach of ductile damage during cold forming processes
1997Publisher Summary The mesoscopic model avoids restrictive assumptions usually used in analytical models and appears to give a good account of ductile damage phenomena (nucleation, growth, and coalescence) for all kinds of loading conditions. It represents a very efficient tool for validating analytical models, for understanding the mechanisms and the
G. Brethenoux +4 more
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Journal of Materials Processing Technology, 1996
Abstract Predicting the behaviour of steel during a deformation process, and then under service conditions, is one of the main challenges in cold forming. The design of optimized forging schedules, by means of classical trial+errors procedures, has become increasingly heavy in terms of time and cost in a competitive environment.
G. Brethenoux +4 more
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Abstract Predicting the behaviour of steel during a deformation process, and then under service conditions, is one of the main challenges in cold forming. The design of optimized forging schedules, by means of classical trial+errors procedures, has become increasingly heavy in terms of time and cost in a competitive environment.
G. Brethenoux +4 more
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Recent Developments in the Design and Control of Cold Forming Processes
1999In the paper some problems of process design and control in metal forming are taken into account. In particular as far as the former aspect is concerned, the problem of the preform design in cold forging is analyzed: the contributions offered by several researchers are presented and an innovative design procedure is proposed.
N. Alberti, F. Micari
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Knowledge Base Controller for Cold Forming Mills in Iron and Steel Production Process
IFAC Proceedings Volumes, 1992Abstract Cold forming mills in the steel production process comprises of two cascaded DC motor stands and a flying shear to cut steel coils in accurate lengths. The main objective of the control scheme is to maintain the speed difference between the two stands within a specified limit in order to prevent producing inaccurate lengths.
M.M.F. Sakr, A. El-Tobshi, H. Shehata
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International Journal on Interactive Design and Manufacturing (IJIDeM), 2022
A. Poursafar +4 more
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A. Poursafar +4 more
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A New Testing Method for the Determination of Ductile Fracture in Cold Forming Processes
CIRP Annals, 1983The primary objective of this study is to show that ductile fracture mechanism in cold forming is highly dependent on the state of stress resulting from the process. So, it is convenient to use identification testing procedure and well defined method for determining equivalent strain at fracture.
J.C. Gelin +3 more
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Online Activities Development to Improve the Understanding of the Processes for Sheet Cold Forming
Materials Science Forum, 2013When it comes to teaching of manufacturing processes and more specifically in the related processes to sheet metal forming, communication technologies now allow the development of set of online activities in order to enable the student to understand some of the scientific basis of this process.
R. Álvarez +3 more
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Cold Forming Aluminium Alloys — Development of a Control System for a Phosphate Lubrication Process
CIRP Annals, 1982Summary The zinc phosphate-sodium stearate method of lubrication is used extensively for the cold forming of steel. The control of the chemical composition of the solution used in this process is relatively simple and poses few problems for industry. However, a similar lubrication process which is often used when the higher strength aluminium alloys ...
L.E. Farmer, P.L.B. Oxley
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