Mechanisms of mixed lubrication in rolling. Advanced manufacturing is always a major wealth-creating sector in developed economies. To catch up the revolution in rolling industry, Australia must develop her own technologies, train her own professionals of high competence, and thus increase her share in the international market. The proposed research will enhance Australia's record in production-orientated fundamental research in the field of metal rolling, and stimulate the growth of the world-c ....Mechanisms of mixed lubrication in rolling. Advanced manufacturing is always a major wealth-creating sector in developed economies. To catch up the revolution in rolling industry, Australia must develop her own technologies, train her own professionals of high competence, and thus increase her share in the international market. The proposed research will enhance Australia's record in production-orientated fundamental research in the field of metal rolling, and stimulate the growth of the world-class Australian industry, BlueScope Steel, and train young engineers most needed by the country. The research outcome will bring about long-term benefit to Australia.Read moreRead less
Effects of oxide scale on the mechanics of contacts in hot strip rolling. This project simulates the oxide scale of hot strip rolling by numerical method, and to obtain a robust and efficient solution technique for hot strip rolling. The innovation of this new research area is in the determination of the thermal coefficients of oxide scale and its modelling by elastic-plastic finite element method. The BHP Institute for Steel Processing and Products, UoW will collaborate with the School of Mater ....Effects of oxide scale on the mechanics of contacts in hot strip rolling. This project simulates the oxide scale of hot strip rolling by numerical method, and to obtain a robust and efficient solution technique for hot strip rolling. The innovation of this new research area is in the determination of the thermal coefficients of oxide scale and its modelling by elastic-plastic finite element method. The BHP Institute for Steel Processing and Products, UoW will collaborate with the School of Materials Science and Engineering, University of Science and Technology Beijing, China on the development of sophisticated theory, coupled simulation model and experimental research of the rolling of strip covering oxide scale with cracks. Read moreRead less
Tribological contact of work roll in hot rolling. Steel and aluminium manufacturers form their products by shaping a hot metal billet using, for example, presses and rollers which contact the rapidly cooling metal in the production line. The economic benefits of lubrication, reduced rolling force (up to 25%), reduced roll wear and extended roll life (up to 40%), reduced down time due to roll change, and better strip quality are very significant for these manufacturing processes. This comprehens ....Tribological contact of work roll in hot rolling. Steel and aluminium manufacturers form their products by shaping a hot metal billet using, for example, presses and rollers which contact the rapidly cooling metal in the production line. The economic benefits of lubrication, reduced rolling force (up to 25%), reduced roll wear and extended roll life (up to 40%), reduced down time due to roll change, and better strip quality are very significant for these manufacturing processes. This comprehensive program will provide new knowledge on lubrication and roll wear to help Australian manufacturing industry (e.g. steel and aluminium) to better understand and optimise their processes to achieve maximum benefits.Read moreRead less
Mechanics of Cold Rolling of Thin Strip. The main aim of this project is to generate a new theory for the cold rolling of thin strip (thickness: 0.1 - 0.15mm) when the work rolls contact beyond the edges of strip. The new knowledge will improve the rolling of thin strip, which is very sensitive to many parameters,some of which could not be acccounted for by existing rolling models. The expected outcomes are (1)development of a sophisticated new theory for thin strip rolling, (2) development of n ....Mechanics of Cold Rolling of Thin Strip. The main aim of this project is to generate a new theory for the cold rolling of thin strip (thickness: 0.1 - 0.15mm) when the work rolls contact beyond the edges of strip. The new knowledge will improve the rolling of thin strip, which is very sensitive to many parameters,some of which could not be acccounted for by existing rolling models. The expected outcomes are (1)development of a sophisticated new theory for thin strip rolling, (2) development of novel methods, (3) comprehensive simulation model that can predict accurately is rolling parameters and in particular the shapes and flatness of strip.Read moreRead less
Mechanics of mixed film lubrication in strip rolling. Rolling speeds of tandem cold rolling mills for thin steel strip are often limited by hot scratches and self excited chatter vibration, which forces the mill to slow down. Consequently the output is reduced and significant out-of-specification materials produced. Operating practices are guided by experience and trial-and-error method. In this project, a comprehensive model will be produced to quantify the effects of relevant parameters that c ....Mechanics of mixed film lubrication in strip rolling. Rolling speeds of tandem cold rolling mills for thin steel strip are often limited by hot scratches and self excited chatter vibration, which forces the mill to slow down. Consequently the output is reduced and significant out-of-specification materials produced. Operating practices are guided by experience and trial-and-error method. In this project, a comprehensive model will be produced to quantify the effects of relevant parameters that can provide a much better understanding of the rolling process at speeds higher than previously possible, and help to improve its productivity as well as product quality.Read moreRead less
Roll bite lubrication in hot strip rolling. Roll bite lubrication has been applied in hot strip rolling with significant cost savings in reduced rolling force, reduced roll wear and increasede productivity. However the mechanics of roll bite lubrication in the interface is not well understood due to the high temperature of the strip, scale oxide on the surfaces and contact asperities. It is known how the surface roughness is generated after rolling. This proposed project will develop a model to ....Roll bite lubrication in hot strip rolling. Roll bite lubrication has been applied in hot strip rolling with significant cost savings in reduced rolling force, reduced roll wear and increasede productivity. However the mechanics of roll bite lubrication in the interface is not well understood due to the high temperature of the strip, scale oxide on the surfaces and contact asperities. It is known how the surface roughness is generated after rolling. This proposed project will develop a model to simulate the roll bite lubrication process, to determine the roughness transfer from the roll surface to the strip surface, and optimise roll bite lubriation process.Read moreRead less
Contact mechanics in hot strip rolling. The mechanics of roll bite contact in hot strip rolling in the interface is not well understood due to the high temperature of the strip, scale oxide on the surfaces, contact asperities and lubrication mechanism of emulsion entrained in the roll bite. It is not known how the strip surface roughness is generated after rolling. This proposed project will develop a model to simulate the contact of the roll bite and to determine the quality of the surface roug ....Contact mechanics in hot strip rolling. The mechanics of roll bite contact in hot strip rolling in the interface is not well understood due to the high temperature of the strip, scale oxide on the surfaces, contact asperities and lubrication mechanism of emulsion entrained in the roll bite. It is not known how the strip surface roughness is generated after rolling. This proposed project will develop a model to simulate the contact of the roll bite and to determine the quality of the surface roughness transfer from the roll surface to the strip surface. The outcome would be significant cost savings in reduced rolling force, increased roll life, minimal surface defects and increased productivity.Read moreRead less
Strip shape performance at tandem cold mill. The shape of the strip at the cold mill are affected significantly by machine conditions and key process variables, and yet the inter-relationship between these key areas are not known and operators rely on trial-and-error methods to operate the mill. At high speeds, the shape of the strip leaving the mill is not good, causeing problems to rolling mills downstream. The project proposed here will integrate practical knowledge and numerical modeling of ....Strip shape performance at tandem cold mill. The shape of the strip at the cold mill are affected significantly by machine conditions and key process variables, and yet the inter-relationship between these key areas are not known and operators rely on trial-and-error methods to operate the mill. At high speeds, the shape of the strip leaving the mill is not good, causeing problems to rolling mills downstream. The project proposed here will integrate practical knowledge and numerical modeling of the strip shape of tandem cold mill at high speeds to optimise the quality of the strip exiting the cold mill, and enable the mill to operate at higher speeds than the current practiceRead moreRead less
Development of Knowledge Based Process Planning System for Non-Symmetrical Sheet Metal Forming Processes. Sheet metal and automotive industries need to continually improve their strategic competitive advantages with flexibility and cost-effectiveness to remain competitive in a changing world economy. In order to achieve this, the primary objective in the proposed research is to design and develop a knowledge-based process planning system for non-symmetrical products produced by deep drawing pro ....Development of Knowledge Based Process Planning System for Non-Symmetrical Sheet Metal Forming Processes. Sheet metal and automotive industries need to continually improve their strategic competitive advantages with flexibility and cost-effectiveness to remain competitive in a changing world economy. In order to achieve this, the primary objective in the proposed research is to design and develop a knowledge-based process planning system for non-symmetrical products produced by deep drawing processes. This objective will be achieved by investigating the effect of process variable on drawability of sheet material, by obtaining relevant process information through necessary experimentation and finite element analysis and by development of a rule base by acquiring process information from domain experts selected from number of sheet metal manufacturing industries.Read moreRead less
An investigation into the development of super steel. The proposed fellow demonstrates outstanding achievements in the development of both new materials and numerical modelling for steel rolling. This research project will further enhance collaboration between the State Key Laboratory of Rolling and Automation in China and the Faculty of Engineering at UoW, and will provide an opportunity for postgraduates and postdoctoral fellows in the Faculty to work with an expert of high international stand ....An investigation into the development of super steel. The proposed fellow demonstrates outstanding achievements in the development of both new materials and numerical modelling for steel rolling. This research project will further enhance collaboration between the State Key Laboratory of Rolling and Automation in China and the Faculty of Engineering at UoW, and will provide an opportunity for postgraduates and postdoctoral fellows in the Faculty to work with an expert of high international standing. The project will significantly benefit Australian manufacturing industry and generate a number of joint journal and conference publications which will improve Australia's reputation in, and knowledge of, the area of super steel strip development.Read moreRead less