Bibliografías temáticas / Hot Stamping

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Literatura académica sobre el tema "Hot Stamping"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 9 de marzo de 2023

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Artículos de revistas sobre el tema "Hot Stamping"

1

Wróbel, Ireneusz. "FEM simulation of hot forming stamping processes". Mechanik 90, n.º 7 (10 de julio de 2017): 606–8. http://dx.doi.org/10.17814/mechanik.2017.7.87.

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Presented is the methodology for the analysis of manufacturability stampings manufactured using hot stamping steel 22MnB5 using finite element simulation. The simulation was performed for the B-pillar – a typical part of the car body. Defined simulation parameters having a significant impact on the results. Simulation results were showed and commented. Conclusions and recommendations were formulated.
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Liu, Bo, Peng Liu y Zhen Tao Zhu. "Development of Hot Stamping Front Pillar Reinforcement". Advanced Materials Research 1063 (diciembre de 2014): 207–10. http://dx.doi.org/10.4028/www.scientific.net/amr.1063.207.

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The development process of hot stamping front pillar reinforcement is introduced from hot stamping material selection, hot stamping parts simulation analysis and hot stamping die processing and debugging process of the problems.This paper discussed the development and application of existing process problems in hot stamping parts. There are some suggestions for application of hot stamping parts in the end.
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3

Naderi, Malek, Mostafa Ketabchi, Mahmoud Abbasi y Wolfgang Bleak. "Semi-hot Stamping as an Improved Process of Hot Stamping". Journal of Materials Science & Technology 27, n.º 4 (abril de 2011): 369–76. http://dx.doi.org/10.1016/s1005-0302(11)60076-5.

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Ma, Ming Tu, Yi Sheng Zhang, Lei Feng Song y Yi Lin Wang. "Research and Progress of Hot Stamping in China". Advanced Materials Research 1063 (diciembre de 2014): 151–68. http://dx.doi.org/10.4028/www.scientific.net/amr.1063.151.

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This paper introduced the significance of hot stamping on developing lightweight technology and safety property enhancement in China Automotive industry, as well as the research status and progress and market prospect of hot stamping process, Materials and equipments. Key technology and focus of hot stamping are analyzed, direction of hot stamping further development were proposed. Hot stamping process, technology and equipments with completely independent intellectual property rights were developed surrounding energy saving, process stability, quality consistency, flexible distribution of components’ strength , high cost-effective production and so on, which is of important for development of hot stamping in China.
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5

Ma, Ning, Ke Su Liu, Quan Kun Liu y Yu Jie Ma. "Application Research of Hot Stamping Base on the Forming History". Advanced Materials Research 1095 (marzo de 2015): 698–703. http://dx.doi.org/10.4028/www.scientific.net/amr.1095.698.

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The hot stamping process and process parameters are investigated for a model of a B-pillar outer plate by numerical simulation. The feasibility of hot stamping forming process and its parameters are analyzed. The effectiveness of numerical simulation and the accuracy of hot stamping forming process and its parameters for B-pillar outer plate are proved by the hot stamping experiment and tensile tests. Three models are designed to analyze the effect of B-pillar in the vehicle side impact. It shows that hot stamping technology has the advantages in the field of lightweight and improving impact resistance. Through the research of the historical process of hot forming part, the residual strain characteristics of hot stamping parts is analyzed, the produce and mechanism of residual strain is explained, and the application method based on the forming history of hot stamping technology is provided.
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6

Ye, Yong Sheng, Zhong De Shan, Bao Yu Wang, Chao Jiang y Bai Liang Zhuang. "A Material Selection Criterion for Hot-Stamping Dies". Applied Mechanics and Materials 490-491 (enero de 2014): 25–28. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.25.

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Hot-stamping technology applies hot-stamping dies to the forming and quenching of austenitized high-strength steel plates to produce super-high-strength parts. To carry out these forming and quenching functions, the hot-stamping dies must be able to withstand shock and high-temperature friction under harsh working conditions, and hence high-quality die materials are necessary. However, since the material performance requirements of hot-stamping dies have not been standardized, and special die materials have not been developed, the choice of materials is based on improving the safety coefficient, which leads to material waste and increased costs. In this article, the performance of the hot-stamping process is analyzed to obtain the main resistance indices and a material selection formula for hot-stamping dies, enabling the selection of hot-stamping die materials to be quantified, and thereby establishing a scientific basis for the selection process.
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7

Liu, Shuang, Mujun Long, Songyuan Ai, Yan Zhao, Dengfu Chen, Yi Feng, Huamei Duan y Mingtu Ma. "Evolution of Phase Transition and Mechanical Properties of Ultra-High Strength Hot-Stamped Steel During Quenching Process". Metals 10, n.º 1 (16 de enero de 2020): 138. http://dx.doi.org/10.3390/met10010138.

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Hot stamping process is widely used in the manufacture of the high strength automotive steel, mainly including the stamping and quenching process of the hot-formed steel. In the hot stamping process, the steel is heated above the critical austenitizing temperature, and then it is rapidly stamped in the mold and the quenching phase transition occurs at the same time. The quenching operation in the hot stamping process has a significant influence on the phase transition and mechanical properties of the hot-stamping steel. A proper quenching technique is quite important to control the microstructure and properties of an ultra-high strength hot-stamping steel. In this paper, considering the factors of the austenitizing temperature, the austenitizing time and the cooling rate, a coupled model on the thermal homogenization and phase transition from austenite to martensite in quenching process was established for production of ultra-high strength hot-stamping steel. The temperature variation, the austenite decomposition and martensite formation during quenching process was simulated. At the same time, the microstructure and the properties of the ultra-high strength hot-stamping steel after quenching at different austenitizing temperature were experimental studied. The results show that under the conditions of low cooling rate, the final quenching microstructure of the ultra-high strength hot-stamping steel includes martensite, residual austenite, bainite and ferrite. With the increase of the cooling rate, bainite and ferrite gradually disappear. While austenitizing at 930 °C, the tensile strength, yield strength, elongation and strength-ductility product of the hot-stamping steel are 1770.1 MPa, 1128.2 MPa, 6.72% and 11.9 GPa%, respectively.
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8

Rolfe, Bernard, Amir Abdollahpoor, Xiang Jun Chen, Michael Pereira y Na Min Xiao. "Robustness of the Tailored Hot Stamping Process". Advanced Materials Research 1063 (diciembre de 2014): 177–80. http://dx.doi.org/10.4028/www.scientific.net/amr.1063.177.

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The final mechanical properties of hot stamped components are affected by many process and material parameters due to the multidisciplinary nature of this thermal-mechanical-metallurgical process. The phase transformation, which depends on the temperature field and history, determines the final microstructure and consequently the final mechanical properties. Tailored hot stamping parts – where the cooling rates are locally chosen to achieve structures with graded properties – has been increasingly adopted in the automotive industry. Robustness of the final part properties is more critical than in the conventional hot stamping. In this paper, the robustness of a tailored hot stamping set-up is investigated. The results show that tailored hot stamping is very sensitive to tooling temperature, followed by latent heat radiation emissivity, and convection film coefficient. Traditional hot stamping has higher robustness compared to tailored hot stamping, with respect to the stamped component’s final material properties (i.e. phase fraction, hardness).
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9

Tong, Chenpeng, Qi Rong, Victoria A. Yardley, Xuetao Li, Jiaming Luo, Guosen Zhu y Zhusheng Shi. "New Developments and Future Trends in Low-Temperature Hot Stamping Technologies: A Review". Metals 10, n.º 12 (8 de diciembre de 2020): 1652. http://dx.doi.org/10.3390/met10121652.

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Improvement of the hot stamping process is important for reducing processing costs and improving the productivity and tensile properties of final components. One major approach to this has been to conduct all or part of the process at lower temperatures. The present paper reviews the state of the art of hot stamping techniques and their applications, considering the following aspects: (1) conventional hot stamping and its advanced developments; (2) warm stamping approaches in which complete austenitisation is not attained during heating; (3) hot stamping with a lower forming temperature, i.e., low-temperature hot stamping (LTHS); (4) advanced medium-Mn steels with lower austenitisation temperatures and their applicability in LTHS. Prospects for the further development of LTHS technology and the work required to achieve this are discussed.
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10

Guo, Yi Hui, Ming Tu Ma, Yi Sheng Zhang, Dian Wu Zhou y Lei Feng Song. "Numerical Simulation of Hot Stamping of Front Bumper". Advanced Materials Research 912-914 (abril de 2014): 715–22. http://dx.doi.org/10.4028/www.scientific.net/amr.912-914.715.

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LS-DYNA software was adopted to conduct research of numerical simulation on hot stamping of front bumper to calculate the temperature field distribution, stress field distribution, FLD figure and etc. of parts in the course of hot stamping so as to predict and analyze the formability of parts. ProCAST software was employed to conduct research of numerical simulation on solid quenching course concerning hot stamping to calculate temperature field distribution of tools and component of multiple stamping cycles; Based on the simulation,the hot stamping mould was developed,and the front bumper components of hot forming were stamped, Compared the test results with the simulation, both the results coincide basically with same variation trend .Results obtain from numerical simulation can provide significant reference value to hot stamping part design, formability predication and tools cooling channel system design.
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Tesis sobre el tema "Hot Stamping"

1

Åkerström, Paul. "Modelling and simulation of hot stamping /". Luleå : Luleå tekniska universitet/Tillämpad fysik, maskin- och materialteknik/Hållfasthetslära, 2006. http://epubl.ltu.se/1402-1544/2006/30/LTU-DT-0630-SE.pdf.

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Ravindran, Deepak. "Finite Element Simulation of Hot Stamping". The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1307540892.

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Kurnia, Evan. "High Temperature Tribology in Hot Stamping". Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-75695.

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Many automotive components are made of Al-Si coated ultra-high strength boron steel (UHSS) and are produced by hot stamping process. In this process, the workpiece is heated to an austenitizing temperature and is then formed and quenched simultaneously between the tools to achieve the desired shape and high strength. During hot stamping process, friction and wear occur which affect formability and maintenance intervals for tool replacement and repair. To repair worn tools, metal is deposited by fusion welding technique. The tribological behaviour of repair welded tool steel sliding against Al-Si coated UHSS has not been studied in detail and there is a need to investigate if the modified tool surface will affect friction and wear. Hot stamping, similar to many manufacturing processes, is affected by the global mega trend of digitalization and Industry 4.0. To monitor the process and optimize the control and operation are the main aims. In view of this, tribological condition monitoring is a promising approach that can allow measurement of physical properties such as vibrations, temperatures, and acoustic emission to be coupled to the tribological response of the system. The aim is to monitor the hot stamping process and enable early detection of changes in friction and wear which can be used for e.g. optimized maintenance and minimized scrap. The aim of this M.Sc. thesis was to improve the robustness of hot forming processes by studying the tribological behaviour of repair welded tool steel sliding against Al-Si coated UHSS under conditions relevant for hot stamping. Another aim was to obtain more predictable tool maintenance by the implementation of acoustic emission measurement system on a hot-strip tribometer and correlating condition monitoring signals to friction and wear phenomena. The tribological tests were carried out using a hot-strip tribometer in conditions representative of a hot stamping process of automotive components. Acoustic emission during sliding between hot work tool steel and different automotive component material surfaces was measured at room temperature in the same strip drawing tribometer and correlated to friction and wear of the surfaces to get more predictable maintenance intervals. Tool steel specimens were welded with the same material as the base material QRO90. Before conducting the tribological test, the repair welded tool steel pin cross-section was polished, etched, and observed under optical microscope and SEM to analyze the effect of Tungsten Inert Gas (TIG) welding process on the microstructure. The analysis was completed with EDS to study the elements in the microstructure. Microhardness was measured to obtain the microhardness profile from the repair welded tool steel pin surface to the bulk in order to study the effect of different microstructures on the mechanical properties. The weight and surface roughness of the pins were measured before the tribological test. After the test was finished, the weight of the pins was measured to calculate the weight difference. The sliding surface of the pins and the strips were photographed. The sliding surface of the pins was also observed and analyzed using SEM and EDS after the test to study wear characteristic of the repair welded tool steel at high temperatures. Acoustic emission signal from the sliding was studied using Toolox44 pins with surface roughness 300-400 nm and with lay direction parallel and perpendicular to sliding direction. Toolox44 pins were sliding against uncoated UHSS, as-delivered Al-Si coated UHSS, and heat-treated Al-Si coated UHSS strips. Acoustic emission was measured during the sliding at the same time as COF measurement. Weight of the pins was measured before and after the test and the wear damage on both surfaces was photographed. COF, AE signals in the time and frequency domain, and wear damage were compared and analyzed. It is found that repair welded tool steel has similar COF compared to the original hot work tool steel with the largest weight gain from the test at 700 ⁰C due to compaction galling mechanism with slower lump formation and the presence of wear particles, transfer layer, and formation of lumps. The weight gain is smaller from the test at 750 ⁰C due to faster lump formation. The weight loss from the test at 600 ⁰C is due to abrasive wear mechanism. SEM micrographs revealed that the repair welded tool steel surface and transfer layers can be found beneath a transfer layer. Wear particles adhered on the repair welded tool steel surface come from broken transfer layer or directly from Al-Si coated UHSS. A change in wear mechanism is indicated by acoustic emission burst signals or gradual amplitude change in the time domain. Frequency analysis of AE signals revealed a change in wear mechanism due to the formation of transferred material in the form of a lump causes AE signals with peaks at higher frequencies above 0.3 MHz to shorten.
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4

Cheung, Madeline. "Material considerations in the hot stamping industry". Thesis, Brunel University, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.479298.

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Georgiadis, Georgios [Verfasser]. "Hot stamping of thin-walled steel components / Georgios Georgiadis". Aachen : Shaker, 2017. http://d-nb.info/1149279877/34.

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Neumann, Rudolf [Verfasser]. "Two-Scale Thermomechanical Simulation of Hot Stamping / Rudolf Neumann". Karlsruhe : KIT Scientific Publishing, 2017. http://www.ksp.kit.edu.

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Rova, Oscar. "Soft zones in the next generation of hot stamping material". Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74028.

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This rapport discusses a Bachelor's thesis conducted at Gestamp Hardtech in Luleå, a company that invented the press hardening technique and still today is one of the leading companies utilising this type of process. A method used in the manufacture of ultra-high strength steel components. The main use of press hardening is when forming sheet metal for the automotive industry, because of the very high resistance to deformation and in turn low weight parts made from this process can offer. The number of of body parts for cars made with this process is high but yet rising as the method is being advanced, the technique is highly advanced and requires both knowledge and process control to manage. The creation of soft zones is a big part of hot stamping. A soft zone is a part of a material with lower strength and hardness, which is achieved by lowering the cooling rate at a specific area of the piece, resulting in a product that is both hardened and soften. For this project, only the soft zones were focused on and not the relation between hardened zones, this was for the interest in having the same mechanical properties over the whole metal sheet used. The questions that this project will try to answer is the possibilities of introducing new materials that can be used in hot stamping with combination of building in soft zones in them. It will also deep dive in to each of the materials materials mechanical properties achieved when process and give data that in the future can be used to build other projects on. While the project is built on the standard used today on softer materials process parameters, a recipe more based on production experience and default setting in the manufacturing line, it will answer if these settings might still hold true for these materials and if not what kind of parameters are more preferred. The reason why this project is of interest is because the automotive industry today has a great desire in lowering weight of the vehicle without reducing the quality. This project is a big step in the direction of finding a material that can provide the same mechanical properties while reducing the volume of the material. Soft zone plane sheets were made by direct hot stamping in the research line in Luleå. The main parameters changed in the different trials were: material, die temperature and cooling time.
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8

Cai, Jingqi. "Modelling of phase transformation in hot stamping of boron steel". Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/6925.

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Knowledge of phase transformations in a hot stamping and cold die quenching process (HSCDQ) is critical for determining physical and mechanical properties of formed parts. Currently, no modelling technique is available to describe the entire process. The research work described in this thesis deals with the modelling of phase transformation in HSCDQ of boron steel, providing a scientific understanding of the process. Material models in a form of unified constitutive equations are presented. Heat treatment tests were performed to study the austenitization of boron steel. Strain-temperature curves, measured using a dilatometer, were used to analyse the evolution of austenite. It was found that the evolution of austenite is controlled by: diffusion coefficient, temperature, heating rate and current volume proportion of austenite. An austenitization model is proposed to describe the relationship between time, temperature, heating rate and austenitization, in continuous heating processes. It can predict the start and completion temperatures, evolution of strain and the amount of austenite during austenitization. Bainite transformation with strain effect was studied by introducing pre-deformation in the austenite state. The start and finish temperatures of bainite transformation at different cooling rates were measured from strain-temperature curves, obtained using a dilatometer. It was found that pre-deformation promotes bainite transformation. A bainite transformation model is proposed to describe the effects of strain and strain rate, of pre-deformation, on the evolution of bainite transformation. An energy factor, as a function of normalised dislocation density, is introduced into the model to rationalise the strain effect. Viscoplastic behaviour of boron steel was studied by analyzing stress-strain curves obtained from uni-axial tensile tests. A viscoplastic-damage model has been developed to describe the evolution of plastic strain, isotropic hardening, normalised dislocation density and damage factor of the steel, when forming in a temperature range of 600°C to 800°C. Formability tests were conducted and the results were used to validate the viscoplastic-damage model and bainite transformation model. Finite element analysis was carried out to simulate the formability tests using the commercial software, ABAQUS. The material models were integrated with ABAQUS using VUMAT. A good agreement was obtained between the experimental and FE results for: deformation degree, thickness distribution, and microstructural evolution.
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9

Taylor, Thomas James. "New generation advanced high strength steels for automotive hot stamping technologies". Thesis, Swansea University, 2014. https://cronfa.swan.ac.uk/Record/cronfa43085.

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Medea, Francesco. "Tribological behaviour of high thermal conductivity tool steels for hot stamping". Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3422391.

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In the last years, the use of High Strength Steels (HSS) as structural parts in car manufacturing, has rapidly increased thanks mainly to their favourable strength to weight ratios and stiffness, which allow a reduction of the fuel consumption to accommodate the new restricted regulations for CO2 emissions control, but still preserving or even enhancing the passengers’ safety. However, the formability at room temperature of HSS is poor, and for this reason, complex-shaped HSS components are produced applying the plastic deformation of the sheet metal at high temperature. The use of hot stamping technology, which was developed during the 70’s in Sweden, has become increasingly used for the production of HSS for the car body-in-white. By using this technology, several improvements have been made, if compared with the forming at room temperature, such as the reduction of spring back and the forming forces, the production of more complex shapes, a more accurate microstructure control of the final piece and the achievement of components with high mechanical properties. The hot stamping process of HSS parts consists mainly in heating a metal sheet up to austenitization temperature and then a simultaneous forming and hardening phase in closed dies, water-cooled, to obtain a fully martensitic microstructure on the final components; in this way, ultimate tensile strength passes from 600 MPa up to 1500-1600 MPa. Anyway, several tribological issues arise when the die and metal sheet interact during the forming process at elevated temperatures; the absence of any types of lubricant due to elevate process temperature and in order to preserve the quality of the part for the later stages of the process chain, leads to high friction forces at interface; moreover, and the severe wear mechanisms together with surface damage of forming dies, can alter the quality of the component and can also have an high impact on the process economy due to frequent windows-maintenance or reground of tools. Furthermore, considering that the thermal conductivity of the die material influences the cooling performance, obtained during the quenching phase, and being the quenching time the predominant part of the cycle time, the productivity of the process is influenced too. On this base tool steels play a capital role in this process, as they strongly influence the properties of the obtained final product and have a strong impact to investment and maintenance costs. The survey of the technical and scientific literature shows a large interest in the development of different coatings for the blanks from the traditional Al-Si up to new Zn-based coating and on the analysis of hard PVD, CVD coatings and plasma nitriding, applied on dies. By contrast, fewer investigations have been focused on the development and test of new tools steels grades capable to improve the wear resistance and the thermal properties that are required for the in-die quenching during forming. The research works reported are focused on conventional testing configurations, which are able to achieve fundamental knowledge on friction behaviour, wear mechanisms and heat transfer evaluation, with both a high accuracy for the process parameters and less information about situations that replicate the thermal-mechanical conditions to which the forming dies are subject during the industrial process. Alternatively, the tribological performance have been studied through costly and time-consuming industrial trials but with a lower control on process parameters. Starting from this point of view, the main goal of this PhD thesis is to analyse the tribological performance in terms of wear, friction and heat transfer of two new steel grades for dies, developed for high-temperature applications, characterized by a High Thermal Conductivity with the purpose to decrease the quenching time during the hot stamping process chain and overcome the limits in terms of process speed. Their performances are compared with a common die steel grade for hot stamping applications. To this aim, a novel simulative testing apparatus, based on a pin on disk test, specifically designed to replicate the thermo-mechanical cycles of the hot stamping dies, was used to evaluate the influence of different process parameters on the friction coefficient, wear mechanisms and heat transfer at interface die-metal sheet. Unlike other research works reported in the literature, which individually analyse the friction, the wear mechanisms and thermal aspects, by means of the methodology used in this thesis, the tribological characterization as a whole is obtained by means of a single approach, in order to analyse the simultaneous global evolution of the tribological system.
Negli ultimi anni, l'utilizzo degli acciai alto resistenziali per sviluppare parti strutturali nell'industria automobilistica è aumentato notevolmente, grazie soprattutto al loro favorevole rapporti resistenza-peso e rigidezza, consentendo una riduzione del consumo del carburante per assecondare le nuove restrizioni in termini di emissioni di CO2 e conservando nel frattempo, la sicurezza dei passeggeri. Tuttavia, la formabilità a temperatura ambiente degli acciai alto resistenziali è scarsa e per questo motivo, i componenti con geometrie complesse sono prodotti applicando la deformazione plastica ad elevata temperatura. L'uso della tecnologia dello stampaggio a caldo, che è stata sviluppata durante gli anni '70 in Svezia, è diventata sempre più popolare per la produzione di parti che costituiscono il telaio delle automobili. Utilizzando tale tecnologia, si sono ottenuti notevoli miglioramenti - se confrontata con la formatura a freddo - come la riduzione del ritorno elastico e delle forze di stampaggio, la possibilità di ottenere geometrie più complesse, un accurato controllo della microstruttura del componente e l'ottenimento di pezzi con elevate proprietà meccaniche. Il processo di stampaggio a caldo di parti in acciaio alto resistenziale consiste principalmente nel riscaldamento di una lamiera fino alla temperatura di austenitizzazione e poi nell’applicazione simultanea della fase di formatura e tempra in stampi chiusi per ottenere una microstruttura martensitica sui componenti finali; in questo modo, il carico di rottura passa da 600 MPa a 1500-1.600 MPa. Tuttavia, diversi problemi tribologici sorgono quando lo stampo e lamiera interagiscono durante il processo di formatura a temperature elevate; l'assenza di qualsiasi tipo di lubrificante a causa delle elevate temperature di processo e per preservare la qualità del pezzo per le successive fasi di lavorazione porta ad elevate forze di attrito all'interfaccia stampo-lamiera e i severi meccanismi di usura insieme ai danni superficiali degli stampi di formatura possono alterare la qualità del prodotto finale e possono anche avere un impatto negativo sull’economia del processo a causa della frequente manutenzione o sostituzione degli stampi. Inoltre, considerando che la conducibilità termica del materiale dello stampo influenza le performance di raffreddamento che possono essere ottenute durante la fase di tempra in stampo e quindi, la produttività del processo, essendo il tempo di tempra la parte predominante del tempo ciclo, gli acciai per stampi ricoprono un ruolo importante in questo processo; influenzano fortemente le proprietà finali del pezzo ed hanno un forte contributo sugli investimenti e costi di manutenzione. Un'analisi della letteratura tecnico-scientifica mostra un grande interesse per lo sviluppo di diversi rivestimenti per le lamiere alto resistenziali, dal tradizionale Al-Si fino al nuovo rivestimento base Zn e sull'analisi di rivestimenti PVD , CVD e nitrurazione plasma da applicare sugli stampi, mentre molte meno indagini sono state focalizzate sullo sviluppo e test di nuovi gradi di acciai per stampi, capaci di migliorare la resistenza all'usura e le proprietà termiche che sono necessari per la tempra in stampo durante la formatura. I lavori di ricerca riportati sono concentrati su configurazioni di test convenzionali, che sono in grado di raggiungere la conoscenza fondamentale sul comportamento dell’attrito, dei meccanismi di usura e della valutazione del trasferimento di calore, con una elevata precisione per quanto riguarda i parametri di processo, ma non riescono a replicare le condizioni termo-meccaniche a cui gli stampi di formatura sono soggetti ciclicamente durante il processo industriale. In alternativa, le prestazioni tribologiche sono studiate attraverso costose prove industriali in termini di tempo e denaro, ma con un basso controllo sui parametri di processo. Partendo da questo punto di vista, l'obiettivo principale di questa tesi è quello di analizzare le prestazioni tribologiche in termini di usura, attrito e di trasferimento di calore di acciai per stampi, sviluppati per applicazioni ad alta temperatura, caratterizzati da una elevata conducibilità termica al fine di diminuire il tempo di tempra durante le fasi dello stampaggio a caldo e superare gli odierni limiti in termini di velocità di processo. Le loro prestazioni sono confrontate con un comune acciaio per stampi utilizzato nella formatura a caldo. A questo scopo, un nuovo apparecchio di prova, basato su un pin on disk test, specificamente progettato per replicare sugli stampi i cicli termo-meccanici del processo della stampa a caldo, è stato utilizzato per valutare l'influenza dei diversi parametri di processo sul coefficiente di attrito, meccanismi di usura e trasferimento di calore all'interfaccia stampo-lamiera. A differenza di altri lavori di ricerca riportati in letteratura, i quali analizzano singolarmente l'attrito, i meccanismi di usura e gli aspetti termici, mediante la metodologia utilizzata in questa tesi, la caratterizzazione tribologica nel suo complesso è ottenuta mediante un unico approccio, al fine analizzare l'evoluzione globale simultanea del sistema tribologico nel suo complesso.
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Libros sobre el tema "Hot Stamping"

1

Billur, Eren, ed. Hot Stamping of Ultra High-Strength Steels. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-98870-2.

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A, Aliev Ch. Sistema avtomatizirovannogo proektirovanii͡a︡ tekhnologii gori͡a︡cheĭ obʺemnoĭ shtampovki. Moskva: "Mashinostroenie", 1987.

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Hu, Ping, Liang Ying y Bin He. Hot Stamping Advanced Manufacturing Technology of Lightweight Car Body. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-2401-6.

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University of Iowa. School of Art and Art History., ed. Foil imaging: A new art form. Cedar Rapids, Iowa: WDG Pub., 2001.

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Stamping hot potatoes style: Lush, plush projects for the sophisticated stamper. Nashville, TN: Potato Peel Press, 2001.

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Hu, Ping. Theories, Methods and Numerical Technology of Sheet Metal Cold and Hot Forming: Analysis, Simulation and Engineering Applications. London: Springer London, 2013.

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Ma, Ming Tu y Yi Sheng Zhang. Innovative Research in Hot Stamping Technology. Trans Tech Publications, Limited, 2014.

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Ma, Mingtu. Innovative Research in Hot Stamping Technology. Trans Tech Publications, Limited, 2015.

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Rudolf, Neumann. Two-Scale Thermomechanical Simulation of Hot Stamping. Saint Philip Street Press, 2020.

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He, Bin, Ping Hu y Liang Ying. Hot Stamping Advanced Manufacturing Technology of Lightweight Car Body. Springer, 2016.

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Capítulos de libros sobre el tema "Hot Stamping"

1

Behrens, B. A. "Hot Stamping". En CIRP Encyclopedia of Production Engineering, 1–7. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-35950-7_16722-2.

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Behrens, Bernd-Arno. "Hot Stamping". En CIRP Encyclopedia of Production Engineering, 1–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-642-35950-7_16722-3.

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Ozturk, Fahrettin, Ilyas Kacar y Muammer Koç. "Hot Stamping". En Modern Manufacturing Processes, 239–64. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2019. http://dx.doi.org/10.1002/9781119120384.ch10.

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Behrens, Bernd-Arno. "Hot Stamping". En CIRP Encyclopedia of Production Engineering, 914–20. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-53120-4_16722.

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Gooch, Jan W. "Hot Stamping". En Encyclopedic Dictionary of Polymers, 372. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_6056.

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Gooch, Jan W. "Dies, Hot Stamping". En Encyclopedic Dictionary of Polymers, 214. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_3604.

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Gooch, Jan W. "Hot-Leaf Stamping". En Encyclopedic Dictionary of Polymers, 371. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_6042.

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Billur, Eren, Rick Teague y Barış Çetin. "Economics of Hot Stamping". En Hot Stamping of Ultra High-Strength Steels, 225–45. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-98870-2_11.

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Jonasson, Jan, Eren Billur y Aitor Ormaetxea. "A Hot Stamping Line". En Hot Stamping of Ultra High-Strength Steels, 77–104. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-98870-2_5.

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Azushima, Akira. "Lubrication in Hot Stamping". En Materials Forming, Machining and Tribology, 193–238. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-6230-0_10.

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Actas de conferencias sobre el tema "Hot Stamping"

1

Blümel, Klaus W., Adam Frings y Gerd Hartmann. "Shearing and Stamping Hot-Rolled Material". En International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1992. http://dx.doi.org/10.4271/920432.

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Pereira, M. P., A. Abdollahpoor, B. F. Rolfe, P. Zhang y C. Wang. "Understanding Wear Conditions during Hot Stamping". En The 2nd International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2015). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789813140622_0093.

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Hung, C. H., C. H. Lee, C. K. Chiu Huang y F. K. Chen. "Hot Stamping of Tailor Welded Blanks". En 4th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU2018). WORLD SCIENTIFIC, 2018. http://dx.doi.org/10.1142/9789813277984_0044.

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Sheng, ZiQiang, Yuwei Wang, Tony Chang, Robert Miller y Evangelos Liasi. "Deep Drawing by Indirect Hot Stamping". En SAE 2013 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2013. http://dx.doi.org/10.4271/2013-01-1172.

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Yılmaz, Ahmet y Tuğçe Turan Abi. "HYBRID QUENCHING IN HOT STAMPING PROTOTYPE PROCESS". En 4th International Conference on Modern Approaches in Science, Technology & Engineering. Acavent, 2019. http://dx.doi.org/10.33422/4ste.2019.02.19.

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Feng, G. W., Y. J. Bi, S. Y. Zhou y F. Fang. "Microcacks in Galvannealed Hot Stamping 22MnB5 Steel". En The 2nd International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2015). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789813140622_0019.

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Abdollahpoor, A., M. P. Pereira, B. F. Rolfe, Z. J. Wang y Y. S. Zhang. "Experimental Investigation of Tailored Hot Stamping Parts". En The 2nd International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2015). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789813140622_0071.

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Gharbi, Mohammad M. y Christian Palm. "Trends and challenges in hot stamping technology". En PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF GLOBAL NETWORK FOR INNOVATIVE TECHNOLOGY AND AWAM INTERNATIONAL CONFERENCE IN CIVIL ENGINEERING (IGNITE-AICCE’17): Sustainable Technology And Practice For Infrastructure and Community Resilience. Author(s), 2017. http://dx.doi.org/10.1063/1.5008063.

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Ghoo, Bonyoung, Yasuyoshi Umezu, Yuko Watanabe, Ninshu Ma, Ron Averill, F. Barlat, Y. H. Moon y M. G. Lee. "An Optimization Study of Hot Stamping Operation". En NUMIFORM 2010: Proceedings of the 10th International Conference on Numerical Methods in Industrial Forming Processes Dedicated to Professor O. C. Zienkiewicz (1921–2009). AIP, 2010. http://dx.doi.org/10.1063/1.3457599.

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Guerboukha, Hichem, Yasith Amarasinghe, Rabi Shrestha, Angela Pizzuto y Daniel M. Mittleman. "Terahertz Metallic Metasurfaces Prototyping Using Hot Stamping". En 2021 Photonics North (PN). IEEE, 2021. http://dx.doi.org/10.1109/pn52152.2021.9597989.

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