Article
Metallurgy & Metallurgical Engineering
Massimo Pellizzari, Daniel Massignani, Sasan Amirabdollahian, Faraz Deirmina
Summary: This study investigates the thermal fatigue behavior of DLMD-H13 subjected to different heat treatments. The results showed that the direct tempering treatment exhibits better thermal fatigue resistance compared to quenching and tempering treatment. Therefore, choosing direct tempering can reduce production costs, solve distortion issues, and enhance the competitiveness of DLMD.
STEEL RESEARCH INTERNATIONAL
(2023)
Article
Optics
R. A. Savrai, D. Toporova, T. M. Bykova
Summary: The study aims to improve the quality of AISI H13 tool steel by varying laser power and scanning speed during SLM. It was found that surface roughness and porosity can be effectively influenced by controlling laser power and scanning speed, but preventing cracking requires alternative technological solutions.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Mohamed Abdel-latif, Khalid Abdel-Ghany, Nahed El-Mahallawy, Taha Mattar
Summary: Additive manufacturing technology is widely used for directly fabricating complex 3D products from CAD files, with Laser-based Powder Bed Fusion process considered as one of the most important AM techniques for producing high-quality Tool Steel products. The quality of the products can be affected by process parameters such as Laser scanning speed in the L-PBF process, as demonstrated in this study.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Chemistry, Multidisciplinary
Marta Ostolaza, Jon Inaki Arrizubieta, Aitzol Lamikiz, Magdalena Cortina
Summary: In this study, a Functionally Graded Material composed of AISI 316L stainless steel and AISI H13 tool steel has been manufactured using laser-directed energy deposition for repair and coating applications in the die and mould industry. The resulting quality was evaluated, showing cracking due to the formation of brittle intermediate phases, an increase in hardness, and a decrease in corrosion resistance. Despite the FGM composition evolving linearly, nonlinear material properties such as hardness and corrosion were observed, suggesting the importance of nonlinear compositional gradients for obtaining desired mechanical properties in steel FGMs.
APPLIED SCIENCES-BASEL
(2021)
Article
Metallurgy & Metallurgical Engineering
Zhao Zhao, Matteo Perini, Paolo Bosetti, Massimo Pellizzari
Summary: In this study, the AISI H13 cladding is directly deposited on a copper-beryllium alloy substrate using laser metal deposition with a buffer layer strategy. The use of a buffer material successfully reduces the risk of cracking. The multi-layer system shows defects such as porosity and cracking, and the five-layer system has better load-bearing capability but performs poorly under high loads due to the low strength of the heat-affected zone.
STEEL RESEARCH INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Morteza Narvan, Ali Ghasemi, Eskandar Fereiduni, Mohamed Elbestawi
Summary: This study explores the fabrication of defect-free functionally graded bi-materials (FGMs) with enhanced wear resistance by incorporating vanadium carbide (VC) into H13 tool steel. The addition of VC significantly improved the mechanical properties of the materials, including microhardness, nanohardness, and wear resistance.
MATERIALS & DESIGN
(2021)
Article
Engineering, Mechanical
Marco Sorgato, Rachele Bertolini, Andrea Ghiotti, Stefania Bruschi
Summary: Laser cladding is a technique used to deposit high-quality metallic coatings on poor-performing metal alloy surfaces. This study investigated the effects of laser cladding-induced microstructure on tool wear and hole quality during drilling of multi-layered claddings. C45 steel substrates were laser cladded with multiple AISI H13 tool steel layers, and the samples were characterized and tested for drill bit wear and hole quality. The results showed that the microstructural features induced by the deposition process significantly affected tool wear and hole quality.
Article
Materials Science, Coatings & Films
M. Pellizzari, Zhao Zhao, P. Bosetti, M. Perini
Summary: This work aims to deposit single-layer H13 tool steel cladding on a CuBe alloy substrate using DLMD. By optimizing the process parameters and substrate preheating temperature, a high-quality and dense cladding layer was successfully obtained.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Wei Jiang, Shuqi Wang, Lan Wang
Summary: The maraging steel coating successfully improved the high temperature wear resistance of H13 steel and exhibited excellent thermal stability, playing a crucial role in enhancing its high temperature wear resistance.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2021)
Article
Engineering, Mechanical
Jichang Xie, Rija Nirina Raoelison, Ruifeng Di, Yanan Liu, Jishuai Li, Mohamed Rachik
Summary: In this paper, a high energy density laser was used to improve the hardness of H13 tool steel. A numerical model was established to investigate the temperature field and profile of the molten pool. The effect of laser scanning speeds on heat-affected depth, surface topography, and mechanical properties was analyzed.
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2022)
Article
Chemistry, Physical
Elisabeth Guenther, Moritz Kahlert, Malte Vollmer, Thomas Niendorf, Christian Greiner
Summary: The study investigated the friction performance of AISI H13 steel samples additively manufactured by laser powder bed fusion. Results showed that grinding and polishing resulted in the lowest friction coefficient, while polishing alone and laser-surface texturing increased the friction coefficient. Wear was minimal in all cases.
Article
Materials Science, Multidisciplinary
Isabela A. Ligabo, Vagner Braga, Caroline C. A. Ferreira, Rafael H. M. Siqueira, Julio C. Lourenco, Antonio J. Abdalla, Milton S. F. Lima
Summary: The aim of this study was to evaluate the porosity, microstructure, hardness, and electrochemical behavior of AISI 316 steel layers deposited on an AISI 347 steel substrate using the LMD process. The results showed that the deposited layers exhibited a predominantly austenitic microstructure and the porosity decreased with the increase in deposited layers.
Article
Chemistry, Physical
Filip Vele, Michal Ackermann, Vaclav Bittner, Jiri Safka
Summary: The study investigates the impact of SLM technology on the porosity and hardness of AISI H13 tool steel, identifying the minimum energy density required for a satisfactory density and hardness level, and proposing phenomenological models based on experimental data analysis.
Article
Chemistry, Physical
Tarang Shinde, Catalin Pruncu, Narendra B. Dhokey, Anca C. Parau, Alina Vladescu
Summary: AISI H13 die steel specimens were subjected to various heat treatments followed by corrosion studies, revealing that the heat-treated specimens exhibited better resistance to corrosion due to lower grain boundary area compared to specimens treated with deep cryogenic treatment. Additionally, both surface modification treatments enhanced the corrosion behavior of the untreated alloy.
Article
Materials Science, Multidisciplinary
Wojciech Macek, Rui F. Martins, Ricardo Branco, Zbigniew Marciniak, Miroslaw Szala, Sebastian Wronski
Summary: This paper focuses on studying the impact of fatigue loading on metallic structure, lifetime, and fracture surface topographies in AISI H13 steel specimens obtained by selective laser melting (SLM). The investigation compares the fatigue results of SLM 3D printed steel specimens with conventionally manufactured 13H steel. The research also analyzes the fractographic evaluation and microtomography to understand the influence of stress levels and porosity distribution on the fracture surfaces.
INTERNATIONAL JOURNAL OF FRACTURE
(2022)
Article
Automation & Control Systems
Sang Wook Han, Young Yun Woo, Taekyung Lee, Jeong Kim, Ji Hwan Jeong, Young Hoon Moon
Summary: This study developed and implemented a customized hydroforming process to fabricate double-layered tubes with circumferentially corrugated pattern, providing a useful solution for manufacturing high-performance compact heat exchangers with enhanced reliability and applicability, aiming to improve energy efficiency and sustainability.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Chemistry, Physical
A. Ra Jo, Myeong Sik Jeong, Sang Kon Lee, Young Hoon Moon, Sun Kwang Hwang
Summary: A multi-stage cold forging process was developed and utilized finite element analysis to manufacture a high-strength one-body input shaft with improved mechanical properties and material recovery rate, showing superior performance compared to traditional machining processes.
Article
Chemistry, Physical
Jae-Hong Kim, Jae-Chang Ryu, Woo-Sik Jang, Joon-Hong Park, Young-Hoon Moon, Dae-Cheol Ko
Summary: This study aims to improve the dimensional accuracy of a drum clutch using a multi-stage roll die forming process and artificial neural network. Finite element simulation and ANN are used to determine optimal clearances for each stage, resulting in good agreement between experimental results and simulation results.
Article
Engineering, Manufacturing
Hossein Ghorbani-Menghari, Mehrdad Azadipour, Mehran Ghasempour-Mouziraji, Young Hoon Moon, Ji Hoon Kim
Summary: This study investigates the effect of tool diameter and forming temperature on the spring-back and dimensional accuracy of a fabricated part, and proposes methods to improve the dimensional accuracy.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2022)
Article
Chemistry, Physical
Parviz Kahhal, Jaebong Jung, Yong Chan Hur, Young Hoon Moon, Ji Hoon Kim
Summary: In order to improve the formability in the deep drawing of tailor-welded blanks, an adjustable drawbead was introduced and its movement was optimized using a multi-objective optimization approach. Finite element simulations were conducted to generate observations for optimization. The response surface method and artificial neural network were used to determine the relationship between variables and objective functions. The results showed that the artificial neural network had better prediction capability and accuracy, and the non-dominated sorting-based genetic algorithm effectively determined the optima.
Article
Materials Science, Multidisciplinary
Jaehoon Kim, Jaebong Jung, Taejoon Park, Daeyong Kim, Young Hoon Moon, Farhang Pourboghrat, Ji Hoon Kim
Summary: This study developed a novel sheet compression tester to prevent buckling during in-plane compressive loading. Tensile and compressive tests were conducted on low-carbon steel, revealing apparent flow stress asymmetry. A finite element method-based data correction procedure was suggested for the low-carbon steel. Third-generation advanced high-strength steels showed intrinsic tension-compression asymmetry at room temperature, which was significantly reduced at 175 degrees Celsius.
Article
Engineering, Manufacturing
Namyong Kim, Dae-Cheol Ko, Chester J. VanTyne, Sang Wook Han, Daniyal Abolhasani, Young Hoon Moon
Summary: The use of continuously cast round blooms as a substitute for cast ingots has attracted wide interest due to its potential to improve yields and reduce operating costs. However, internal defects such as central voids and segregations are common in these round blooms. This study implemented an innovative square cogging process to eliminate these defects, resulting in improved void closure efficiency and mechanical properties.
INTERNATIONAL JOURNAL OF MATERIAL FORMING
(2022)
Article
Crystallography
Taewoo Hwang, Gi-Dong Kim, Seo-Wan Kim, Young Hoon Moon, Hyunbin Nam, Sangwoo Song
Summary: This study investigated the microstructural and compositional behavior of Fe-Cr-Si clads produced in stainless steel 316 L with a reduced laser traverse speed using directed energy deposition. The results showed that increasing the laser traverse speed led to decreased dilution of the Ni component and the substrate's unmixed zone, resulting in a gradual decrease in the austenite phase of the clad region. Additionally, decreasing the heat input resulted in a decrease in the martensite fraction and an increase in the delta-ferrite fraction in the body-centered cubic clad region.
Article
Automation & Control Systems
Si Qing Liu, Sang Wook Han, Tae Woo Hwang, Daniyal Abolhasani, Young Hoon Moon
Summary: This study investigated a laser scanning strategy for fabricating deep surface grooves using a continuous-wave fiber laser. The low productivity of short-pulsed-wave lasers limits their application to a small scale, so a continuous-wave (CW) fiber laser that can provide a high power density was used for the rapid fabrication of deep grooves. An innovative tailored laser scanning strategy of fabricating patterned deep grooves was designed based on the power density and interaction time. The developed laser scanning strategy using a CW fiber laser can be widely applied in the fabrication of deep grooves of various cross-sections with high reliability.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Industrial
Ji Seob An, A. Ra Jo, Myeong Sik Jeong, Sang Kon Lee, Young Hoon Moon, Sun Kwang Hwang
Summary: A cryogenic-temperature-non-circular drawing sequence (CT-NCD) at 123 K was developed to investigate the twin activation effects on CP-Ti for manufacturing high-strength CP-Ti wire. The cryogenic tensile test showed that the CT-NCD improved the tensile strength by 58.5% and strain by 52.1% compared to room temperature results. The CT-NCD produced faultless CP-Ti wires with increased strength and micro-Vickers hardness.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Physical
Daniyal Abolhasani, Ha-Neul Kwon, Yong-Han Park, Young-Hoon Moon
Summary: This study investigates the problem of brittle fracture at triple junctions in Cu-based shape memory alloys and proposes a solution by locally reinforcing the alloy with alumina. The results show that the addition of alumina can refine grains and break martensite variants, reducing brittle fracture. However, the addition of the element may also coarsen grains and negatively affect the shape memory effect. The thickness and reinforcement content of the deposited layers strongly influence the failure mode, with a thicker reinforcement layer and 0.3 wt% alumina content leading to an optimized failure mode and improved shape memory effect.
Article
Materials Science, Multidisciplinary
Cheol Hwan Lee, Yong Ki Kang, Dong Kyu Kim, Sang Hyeon Kim, Young Hoon Moon
Summary: In this study, a lightweight FRP helical gear was fabricated for potential application in automobile parts requiring high loads and reduced noise. The gear was made using aramid FRP in the tooth region and SCR420 steel in the inner hub region. A hot-forming system combining induction heating and water cooling was developed to reduce cycle time. The gear's performance was successfully evaluated through durability, strength, and noise tests. The use of FRP materials offers significant potential for lightweight components, but challenges related to their properties must be addressed on a case-by-case basis.
Article
Materials Science, Multidisciplinary
Daniyal Abolhasani, Byungrok Moon, Namhyun Kang, Chester J. VanTyne, Young Hoon Moon
Summary: This study compares the stability of graphene, graphite, and their slurries in the laser surface hardening process. The results show that under suitable process conditions, graphene exhibits high hardness and low stress fluctuation, without crack formation at the interface. Additionally, adjusting the powder layer thickness and laser power can maximize the aspect ratio and microhardness near the interface.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Daniyal Abolhasani, Byungrok Moon, Namhyun Kang, Chester J. VanTyne, Young Hoon Moon
Summary: The Cu-based high-temperature shape memory alloy Cu-Al-Ni exhibits high transformation temperatures and potential applications at high temperatures. By substituting graphene for Ni, the Cu-Al-GN alloy showed improved reinforcement distribution, finer grains, defect-free samples, and enhanced shape memory effect (SME) performance. The results demonstrate Cu-Al-0.2GN as a promising candidate for rapid production with high performance in recovery cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jae-Hong Kim, Yong-Hun Jung, Francesco Lambiase, Young-Hoon Moon, Dae-Cheol Ko
Summary: The use of carbon fiber-reinforced plastics (CFRP) is increasing for automotive parts manufacturing. However, the adhesive between CFRP and steel poses challenges for multi-material products. This study proposes a new manufacturing process using prepreg compression molding (PCM) for CFRP reinforcement on a hot stamped B-pillar. Finite element simulation and microscopy observation confirm the feasibility of PCM manufacturing for steel/CFRP B-pillar assembly.
