Exploration of Solution Space to Study Thermo-Mechanical Behavior of AA5083 Al-Alloy During Hot Rolling Process

2017 ◽  
Author(s):  
Anand Balu Nellippallil ◽  
Rishabh Shukla ◽  
Surya Ardham ◽  
Chung-Hyun Goh ◽  
Janet K. Allen ◽  
...  
Keyword(s):  
Process Parameters ◽  
Hot Rolling ◽  
Design Method ◽  
Solution Space ◽  
Rolling Process ◽  
Al Alloy ◽  
Aa5083 Alloy ◽  
Simulation Based Design ◽  
Process Operation ◽  
Set Based Design

A method is proposed to explore the solution space of a metallurgical process with an aim to foster material innovation through simulation based design. The efficacy of the method is demonstrated in the context of hot rolling of the AA5083 alloy. The set-based design approach is employed to predict the process parameters of rolling operation for a given set of specified requirements. Critical process parameters such as strain rate, temperature, heat transfer coefficient and strip width are only considered in the design study. Ternary plots are constructed and utilized to explore the solution space obtained and thereby identifying feasible regions of process operation wherein the specified requirements are satisfied. Since plant data is not available for the study, Finite-element (FE) analysis is carried out as a means to validate the results obtained using aforesaid design method.

Inverse Thermo-Mechanical Processing (ITMP) Design of a Steel Rod During Hot Rolling Process

2019 ◽  
Author(s):  
Anand Balu Nellippallil ◽  
Pranav Mohan ◽  
Janet K. Allen ◽  
Farrokh Mistree
Keyword(s):  
Hot Rolling ◽  
Design Method ◽  
Integrated Design ◽  
Computational Design ◽  
Rolling Process ◽  
Manufacturing Processes ◽  
Mechanical Processing ◽  
Design Exploration ◽  
And Performance ◽  
Decision Based Design

Abstract The production of steel products involves a series of manufacturing processes. The material Thermo-Mechanical Processing (TMP) history at each process affects the final properties and performances of the product. Experiments and plant trials to predict these properties and performance of steel products are expensive and time consuming. This has resulted in the need for computational design methods and tools that support a human designer in realizing such complex systems involving the material, product and manufacturing processes from a simulation-based design perspective. In this paper, we present a Goal-oriented Inverse Design method to achieve the integrated design exploration of materials, products and manufacturing processes. The key functionality offered is the capability to carry out a microstructure-mediated design satisficing specific processing requirements and performance goals of the product. Given models to establish the information flow chain, a designer can use the method for the decision-based design exploration of material microstructure and processing paths to realize products in a manufacturing process chain. The efficacy of the method is tested using an industry-inspired hot rolling problem to inversely design the thermo-mechanical processing of a steel rod. The focus here is the method and associated design constructs which are generic and support the formulation and decision-based design of similar problems involving materials, products and associated manufacturing processes.

Aluminum Hot Finishing Rolling Process Parameters on the Effect of Temperature Field Distribution

2011 ◽  
Vol 103 ◽  
pp. 442-446
Author(s):  
Zhuo Fu ◽  
Yi Lun Liu ◽  
Xue Liu
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Field Distribution ◽  
Process Parameters ◽  
Hot Rolling ◽  
Rolling Process ◽  
Effect Of Temperature ◽  
Technological Parameters ◽  
Temperature Field Distribution ◽  
Actual Structure

According to actual structure parameters and the technological parameters in an aluminum hot rolling production line, consider the rolling of metal plastic deformation heat, the contact surface heat conductivity, friction heat effect on the rolled piece and the roller heat transfer, use finite element analysis software MSC.Marc to build thermo-mechanical coupled finite element simulation model about aluminum hot rolling frame F2. Analyzing different rolling process parameters on the influence of the temperature field distribution regularity, and by adjusting the rolled-piece technology parameters to control temperature distribution, so as to achieve the purpose of improving product quality, and to provide theoretical basis for production of aluminum strip.

Integrated Multiscale Robust Design Considering Microstructure Evolution and Material Properties in the Hot Rolling Process

2014 ◽  
Author(s):  
Chung-Hyun Goh ◽  
Salman Ahmed ◽  
Adam P. Dachowicz ◽  
Janet K. Allen ◽  
Farrokh Mistree
Keyword(s):  
Robust Design ◽  
Microstructure Evolution ◽  
Hot Rolling ◽  
Material Properties ◽  
Prediction Models ◽  
Solution Space ◽  
Rolling Process ◽  
Roll Pass ◽  
Technical Requirements ◽  
Property Performance

A transmission gear is generally produced by a sequence of several processes from steelmaking to final machining and surface treatment. The intermediate processes such as hot rolling induce microstructure evolution and phase transformation which play a significant role in determining the mechanical properties and fatigue strength of gears. Therefore, these intermediate processes should be carefully considered in determining the performance and properties of the end product. In this paper, an integrated multiscale robust design approach using the Inductive Design Exploration Method (IDEM) is implemented to improve robustness in the presence of uncertainty by exploring the solution space in order to find feasible solutions to satisfy technical requirements and/or customer aspirations. Four pass roll design with oval and round grooves is used to simulate the hot bar rolling process. The microstructure evolution, flow stress, and wear prediction models are implemented in the analysis model to account for the process-structure relationship in each roll pass. Surrogate models for some parameters such as ultimate tensile strength are then developed based on the analysis results. Using the relationship of processing-structure-property-performance, the integrated realization of engineered materials and products (IREMP) can be accomplished over multiple length scales. In IDEM, the range of the property-performance relationship is first evaluated by the requirements for the end product. Subsequently, the austenite and ferrite grain sizes and material properties are inductively determined by exploring the design space. Consequently roll pass design including the rolling conditions and the microstructure of billets are customized by the exploration of design variables based on IDEM.

scholarly journals Mechanical and Thermal Neutron Absorbing Properties of B4C/Aluminum Alloy Composites Fabricated by Stir Casting and Hot Rolling Process

Metals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 413
Author(s):  
Donghyun Lee ◽  
Junghwan Kim ◽  
Byeongjin Park ◽  
Ilguk Jo ◽  
Sang-Kwan Lee ◽  
...  
Keyword(s):  
Thermal Neutron ◽  
Hot Rolling ◽  
Microstructural Analysis ◽  
Rolling Process ◽  
Target Volume ◽  
Stir Casting ◽  
Al Alloy ◽  
Neutron Shielding ◽  
Interfacial Layers ◽  
Hot Rolling Process

In this study, to fabricate neutron shielding material, boron carbide (B4C)-reinforced aluminum (Al) alloy composites were successfully fabricated by stir casting followed by a hot rolling process. Microstructural analysis of B4C/Al6061 composites with different volume fractions (5, 10, 20, 25, and 30%) revealed that the composites had volume ratios similar to the target volume ratios of B4C. Furthermore, B4C reinforcements were uniformly dispersed in the Al matrix, forming multi-interfacial layers of Al4C3/(Ti,Cr)B2. The interfacial layer generated during stir casting maintained its own structure after the hot rolling process, indicating strong interfacial bonding strength. The tensile strengths of the B4C/Al6061 composites increased to 20 vol.% and stayed above the value for Al6061, even reaching 30 vol.%. The measured thermal neutron shielding rate increased with increasing B4C content, and the highest thermal neutron shielding rate was observed at 30 vol.% composite, which corresponds to 95.6% neutron shielding at 0.158-cm thickness.

Effect of Process Parameters on Thermal History in Hot Rolling Process

2013 ◽  
Vol 8 (7) ◽  
pp. 400-408
Author(s):  
Licheng Yang ◽  
Jingxiang Hu ◽  
Liwei Ning ◽  
Xinli Xu ◽  
Jinchen Ji
Keyword(s):  
Process Parameters ◽  
Hot Rolling ◽  
Thermal History ◽  
Rolling Process ◽  
Hot Rolling Process

scholarly journals Microstructure and Performance of a Three-Layered Al/7075–B4C/Al Composite Prepared by Semi Continuous Casting and Hot Rolling

Metals ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 600 ◽  
Author(s):  
Yubo Zhang ◽  
Yingshui Yu ◽  
Guangye Xu ◽  
Ying Fu ◽  
Tingju Li ◽  
...  
Keyword(s):  
Continuous Casting ◽  
Hot Rolling ◽  
Outer Layer ◽  
Sessile Drop ◽  
Rolling Process ◽  
Layered Composite ◽  
Al Alloy ◽  
Alloy Matrix ◽  
B4c Particles ◽  
Wetting Process

A three-layered composite material, consisting of an Al outer layer and a 7075-10 wt % B4C inner layer, was fabricated by semi-continuous casting and following a hot rolling process. The composite exhibits a clear layered structure with a good interfacial bond between layers. In the sessile drop experiment, the Al alloy melt dropped on the 7075-B4C composite at 650 °C, with the contact angle decreasing from 105° to 25° in 50 s, indicating that the infiltration and spreading both played important roles in the wetting process. In the inner layer, the reinforced B4C particles were distributed uniformly in the 7075 alloy matrix, and enhanced the average hardness of the inner layer to 163.4 HV, compared to that of the outer layer at 32.8 HV. The composite plate of 20 mm obtained the compression strength of 152 MPa. The electron probe microanalysis (EPMA) line scanning result showed that no harmful reaction or element diffusion occurred between B4C and the surrounding 7075 matrix. The B4C particles remained mechanically bonded into the matrix, and significantly reduced the bullet speed during the projectile impact test.

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