Joonas Ilmola , Oskari Seppälä , Joni Paananen , Aarne Pohjonen , Juha Pyykkönen , Jari Larkiola
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引用次数: 0
Abstract
The steel industry is facing a big change as they are reducing carbon dioxide emissions. The transition to carbon neutral or fossil free steel manufacturing requires investments in new technologies e.g. direct reduction of iron or scrap-based production. Consequently, compact hot strip rolling lines and electric arc furnaces will replace conventional hot strip rolling processes operating with slab reheating furnaces. In compact strip production lines, the casting size is significantly larger compared to conventional process with individual slabs. This reduces the possibility of experimental rolling tests and therefore experimental testing should be replaced with modelling and simulations. In order to create a comprehensive model of the finishing mill to reduce experimental tests significantly, the virtual finishing mill is required. Therefore, the virtual finishing mill is developed to simulate hot strip production considering the boundary conditions of an industrial scale finishing rolling mill using a finite element model. Virtual finishing mill contains implemented virtual rolling automation which performs setup calculations for mill stands, mass flow control and strip tensioning between sequential rolling stands and carries out roll gap clearance adjustments for six stands finishing mill. This research focuses on mechanical process stability in full scale FE-model of finishing mill. Also, the reliable boundary conditions addressed to the hot strip in the finishing mill process are produced. Developed virtual finishing mill delivers a thorough thermo-mechanical state of the strip through the finishing mill to be further utilized by sub-models of metallurgical phenomena like recovery, precipitation and grain growth. The validation for setup calculations and FE-model are completed by comparing results of mathematical methods and comparison to industrial data.
期刊介绍:
The Journal of Manufacturing Systems is dedicated to showcasing cutting-edge fundamental and applied research in manufacturing at the systems level. Encompassing products, equipment, people, information, control, and support functions, manufacturing systems play a pivotal role in the economical and competitive development, production, delivery, and total lifecycle of products, meeting market and societal needs.
With a commitment to publishing archival scholarly literature, the journal strives to advance the state of the art in manufacturing systems and foster innovation in crafting efficient, robust, and sustainable manufacturing systems. The focus extends from equipment-level considerations to the broader scope of the extended enterprise. The Journal welcomes research addressing challenges across various scales, including nano, micro, and macro-scale manufacturing, and spanning diverse sectors such as aerospace, automotive, energy, and medical device manufacturing.