Duck Bong Kim
Tennessee Technological University
Decision support systemReflectivityUltimate tensile strengthManufacturing engineeringOpticsEngineeringBidirectional reflectance distribution functionArtificial intelligenceComposite materialMultispectral imageMaterials scienceWeldingInteroperabilitySystems engineeringRendering (computer graphics)High dynamic rangeHigh-dynamic-range imagingComputer visionComputer scienceProcess (engineering)Gas metal arc weldingSustainabilityMicrostructure
45Publications
11H-index
337Citations
Publications 43
Newest
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#1Md. R. U. Ahsan (Tennessee Technological University)H-Index: 5
#2Xuesong Fan (UT: University of Tennessee)H-Index: 4
Last. Duck Bong Kim (Tennessee Technological University)H-Index: 11
view all 8 authors...
Abstract Bimetallic additively manufactured structures (BAMSs) can replace traditionally-fabricated functionally-graded-components through fusion welding processes and can eliminate locally-deteriorated mechanical properties arising from post-processing. The present work fabricates a BAMS by sequentially depositing the austenitic stainless-steel and Inconel625 using a gas-metal-arc-welding (GMAW)-based wire + arc additive manufacturing (WAAM) system. Elemental mapping shows a smooth compositiona...
1 CitationsSource
#1A. N. M. Tanvir (Tennessee Technological University)H-Index: 4
#2Md. R. U. Ahsan (Tennessee Technological University)H-Index: 5
Last. Duck Bong Kim (Tennessee Technological University)H-Index: 11
view all 10 authors...
Abstract Wire + arc additive manufacturing (WAAM) is considered an innovative technology that can change the manufacturing landscape in the near future. WAAM offers the benefits of inexpensive initial system setup and a high deposition rate for fabricating medium- and large-sized parts such as die-casting tools. In this study, AISI H13 tool steel, a popular die-casting tool metal, is manufactured by cold metal transfer (CMT)-based WAAM and is then comprehensively analyzed for its microstructural...
4 CitationsSource
Due to the complexity of and variations in additive manufacturing (AM) processes, there is a level of uncertainty that creates critical issues in quality assurance (QA), which must be addressed by time-consuming and cost-intensive tasks. This deteriorates the process repeatability, reliability and part reproducibility. So far, many AM efforts have been performed in an isolated and scattered way over several decades. In this paper, a systematically integrated holistic view is proposed to achieve ...
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This study investigates the mechanical properties of the wire + arc additively manufactured Inconel 625 thin wall. The first part of this study focused on the microstructural features of the material after time-based annealing. This second part discusses the tensile strength and microhardness of the material after the same annealing procedure (980 °C, hold time 30 min, 1 h, and 2 h). It is found that the annealing procedure improved the ultimate tensile strength by 5%. Although the yield strengt...
2 CitationsSource
This paper presents a systematic methodology to enable environmental sustainability and productivity performance assessment for integrated process and operation plans at the machine cell level of a manufacturing system. This approach determines optimal process and operation plans from a range of possible alternatives that satisfy the objectives and constraints. The methodology provides a systematic procedure to highlight parameters that have significant impact on both sustainability and producti...
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#1Md. R. U. Ahsan (Tennessee Technological University)H-Index: 5
#2A. N. M. Tanvir (Tennessee Technological University)H-Index: 4
Last. Duck Bong Kim (Tennessee Technological University)H-Index: 11
view all 10 authors...
Abstract A bimetallic additively-manufactured structure (BAMS) is a type of functionally-graded multi-material structure used for achieving different complementary material properties within the same structure as well as cost optimization. Wire + arc additive manufacturing (WAAM) offers the capability to fabricate the BAMS in a simultaneous or sequential way. To fully utilize the benefits of the BAMS, the interfacial joint should be strong, and each of the constituents should have reasonable mec...
9 CitationsSource
#1Md. R. U. AhsanH-Index: 5
#2A. N. M. TanvirH-Index: 4
Last. Duck Bong KimH-Index: 11
view all 6 authors...
Wire + arc additive manufacturing (WAAM) uses existing welding technology to make a part from metal deposited in an almost net shape. WAAM is flexible in that it can use multiple materials successively or simultaneously during the manufacturing of a single component.,In this work, a gas metal arc welding (GMAW) based wire + arc additive manufacturing (WAAM) system has been developed to use two material successively and fabricate bimetallic additively manufactured structure (BAMS) of low carbon s...
8 CitationsSource
#1A. N. M. Tanvir (Tennessee Technological University)H-Index: 4
#2Md. R. U. Ahsan (Tennessee Technological University)H-Index: 5
Last. Duck Bong Kim (Tennessee Technological University)H-Index: 11
view all 6 authors...
Wire + arc additive manufacturing (WAAM) is a versatile, low-cost, energy-efficient technology used in metal additive manufacturing. This WAAM process uses arc welding to melt a wire and form a three-dimensional (3D) object using a layer-by-layer stacking mechanism. In the present study, a Ni-based superalloy wire, i.e., Inconel 625, is melted and deposited additively through a cold metal transfer (CMT)-based WAAM process. The deposited specimens were heat-treated at 980 °C (the recommended temp...
11 CitationsSource
#1Duck Bong Kim (Tennessee Technological University)H-Index: 11
This paper describes an approach that can compose predictive models from disparate knowledge sources in smart manufacturing environments. The capability to compose disparate models of individual manufacturing components with disparate knowledge sources is necessary in manufacturing industry, because this capability enables us to understand, monitor, analyze, optimize, and control the performance of the system made up of those components. It is based on the assumption that the component models an...
8 CitationsSource