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Journal articles on the topic 'Pressure forming'

Author: Grafiati

Published: 5 June 2025

Last updated: 16 July 2025

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1

Wang, Gang, Jun Chen, and X. Y. Ruan. "A Study on Gas Pressure for Superplastic Forming of Titanium Alloy Bellows." Materials Science Forum 475-479 (January 2005): 3051–54. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.3051.

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The complex superplastic forming (SPF) technology applying gas pressure and compressive axial load is an advanced forming method for bellows made of titanium alloy, which forming process consists of the three main forming phases namely bulging, clamping and calibrating phase. The influence of forming gas pressure in various phases on the forming process are analyzed and models of forming gas pressure for bellows made of titanium alloy are derived according to the thin shell theory and plasticity deformation theory. Using model values, taking a two-convolution DN250 bellows made of Ti-6Al-4V ti

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2

Doltsinis, I. "Internal pressure – stressing and forming*." International Journal of Computational Methods and Experimental Measurements 1, no. 3 (2013): 238–48. http://dx.doi.org/10.2495/cmem-v1-n3-238-248.

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3

Ravn, B. G., C. B. Andersen, and T. Wanheim. "Pressure contours on forming dies." Journal of Materials Processing Technology 115, no. 2 (2001): 212–19. http://dx.doi.org/10.1016/s0924-0136(01)00808-1.

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4

Lu, Xian, and Raj Balendra. "Pressure contours on forming dies." Journal of Materials Processing Technology 115, no. 2 (2001): 220–26. http://dx.doi.org/10.1016/s0924-0136(01)00809-3.

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5

Le, Trung-Kien, Thi-Thu Nguyen, and Ngoc-Tam Bui. "Experimental Modeling of Pressure in the Hydrostatic Formation of a Cylindrical Cup with Different Materials." Applied Sciences 11, no. 13 (2021): 5814. http://dx.doi.org/10.3390/app11135814.

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Forming complex sheet products using hydrostatic forming technology is currently a focus of the majority of forming processes. However, in order to increase stability during the forming process, it is necessary to identify and analyze the dependency of the forming pressure and the quality of a product on input parameters. For the purpose of modeling the forming pressure, this paper presents empirical research on the product of a cylindrical cup made of various materials, including carbon steel (DC04), copper (CDA260), and stainless steel (SUS 304) with different thicknesses (0.8 mm, 1.0 mm, an

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6

Pereira, Michael P., Wen Yi Yan, and Bernard F. Rolfe. "Modeling of Contact Pressure in Sheet Metal Forming." Materials Science Forum 561-565 (October 2007): 1975–78. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.1975.

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For a given sheet metal forming process, an accurate determination of the contact pressure distribution experienced is an essential step towards the estimation of tool life. This investigation utilizes finite element (FE) analysis to determine the evolution and distribution of contact pressure over the die radius, throughout the duration of a channel forming process. It was found that a typical two-peak steady-state contact pressure response exists for the majority of the process. However, this was preceded by a transient response, which produced extremely large and localized contact pressures

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Qi, Lehua, Xianghui Hou, Renguo Guan, Jufu Jiang, and Jiming Zhou. "Liquid-Solid Forming under High Pressure." Advances in Mechanical Engineering 6 (January 2014): 476184. http://dx.doi.org/10.1155/2014/476184.

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8

Schmoeckel, D., C. Hessler, and B. Engel. "Pressure Control in Hydraulic Tube Forming." CIRP Annals 41, no. 1 (1992): 311–14. http://dx.doi.org/10.1016/s0007-8506(07)61211-6.

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9

Shang, Miao, Yan Li, Mingshun Yang, and Panrong Shi. "Study of thinning rate in incremental forming with hydraulic pressure supports based on taguchi design." Journal of Physics: Conference Series 2775, no. 1 (2024): 012041. http://dx.doi.org/10.1088/1742-6596/2775/1/012041.

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Abstract Incremental sheet forming technology has great potential for forming thin-walled parts. However, the excessive thinning rate and uneven thickness distribution seriously affect the performance of forming. To reduce the sheet thickness reduction rate during the incremental forming process, hydraulically supported incremental forming technology is adopted, the thickness reduction rate of parts with different pressures, sheet thicknesses, and sizes was experimentally investigated and optimized by using Taguchi’s method. The results show that in the designed experimental scheme, the most s

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10

Mádi, Laura, and Dániel Molnár. "Conditions Forming to Blow-Hole Defects in Casting." Materials Science Forum 1153 (June 25, 2025): 13–22. https://doi.org/10.4028/p-ewe9jz.

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This study investigates the relationship between core gas pressure, solid phase fraction in the sand core, and gas porosity formation in casting processes. The experiments were conducted using EN AC-45500 aluminium alloy, varying casting temperatures and casting diameters. The maximum core gas pressure was measured and correlated closely with the solid phase fraction at the sand core-metal interface. Notably, the study reveals that gas breakthroughs can occur even at core gas pressures lower than the metallostatic pressure. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectro

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11

Huang, Hui, and Mikeal Nygårds. "Numerical Investigation of Paperboard Forming." Nordic Pulp & Paper Research Journal 27, no. 2 (2012): 211–25. http://dx.doi.org/10.3183/npprj-2012-27-02-p211-225.

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Abstract A three dimensional numerical investigation of a commercial four-ply paperboard formed into a pear-shaped mould was presented. The numerical investigation included the effect of pressure, boundary conditions, material properties and different deformation and damage mechanisms such as delamination and plasticity. Simulations were done in both the MD and CD using different pressures. A paperboard model with a combination of anisotropic continuum model and a softening interface model had good deformation behavior during the forming simulations. Forming experiment that mimicked the simula

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12

Meghna, Das, and Vidyashree Nandini V. "Vacuum forming equipment in dentistry: A narrative review." Journal of Orofacial Rehabilitation 3, no. 2 (2023): 2–8. https://doi.org/10.5281/zenodo.8246824.

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<strong>Abstract</strong> <strong>Objective</strong>: To concise existing peer reviewed literature provide valuable information and a narrative on vacuum forming equipment and the materials used in Prosthodontics. <strong>Background:</strong> In dentistry, vacuum formers are utilized to create imprints of opposing bites and fabrication of various dental appliances, including splints, bleaching trays and orthodontic appliances. Though vacuum formers are used extensively, there is lack of a concise knowledge-base on this subject. <strong>Methodology:</strong> English based literature online and

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13

Peters, Klaus-Ruediger. "Secondary Electron Imaging of Liquid Water Films in the Environmental Scanning Electron Microscope." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 1 (1990): 374–75. http://dx.doi.org/10.1017/s0424820100180628.

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High gas pressure scanning electron microscopy is now routinely possible with new microscopes operating between 0.1 and 20 torr gas pressure. Since the specimen chamber is separated from the electron optical column by pressure-limiting apertures, high gas pressures present at the level of the specimen do not affect the high vacuum in the column. The use of a single PLA underneath the last probe-forming lens allows maintainance of ∼0.1 torr. Twenty torr can be stabilized with two PLA, forming two differentially pumped pressure zones which may be incorporated into the last probe-forming lens.One

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14

Behrens, Bernd Arno, Thomas Hagen, Andreas Klassen, Julian Knigge, Jens Mielke, and Insa Pfeiffer. "Forging of Aluminium Components under a Superimposed Hydrostatic Pressure to Induce Local Strain Hardening." Advanced Materials Research 137 (October 2010): 191–217. http://dx.doi.org/10.4028/www.scientific.net/amr.137.191.

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A promising approach to handling low ductile aluminium alloys in a forming process is forming under superimposed hydrostatic pressure. The influence of superimposed hydrostatic pressure on the flow stress as well as on the formability for various hydrostatic pressures and temperatures was analysed [15, 3, and 7]. By increasing the formability of the workpiece, larger local plastic strains could be achieved. The results reveal highly increased formability at superimposed pressure of 85 MPa for workpieces from thermosetting alloy AlSi1MgMn (EN AW 6082) in comparison to those from self-hardening

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15

IYAMA, Hirofumi, Takeshi HINATA, Masashi FUJITA, Tadashi OHYA, and Shigeru ITOH. "Effect of Pressure Vessel on Explosive Forming." Proceedings of Conference of Kyushu Branch 2003 (2003): 267–68. http://dx.doi.org/10.1299/jsmekyushu.2003.267.

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16

Martí, J. "Pressure evolution during explosive caldera-forming eruptions." Earth and Planetary Science Letters 175, no. 3-4 (2000): 275–87. http://dx.doi.org/10.1016/s0012-821x(99)00296-4.

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17

Hashimoto, Yuki, V. J. Wildfong, C. Holmqvist, J. A. Shands, and J. A. Ronning. "Continuous Pressure Gap Forming for Linerboard Production." JAPAN TAPPI JOURNAL 66, no. 2 (2012): 122–25. http://dx.doi.org/10.2524/jtappij.66.122.

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18

Lin, Zhengjie, Hengliang Liang, and Hongfei Zhou. "Forming pressure of PMI foam sandwich structure." Journal of Physics: Conference Series 2566, no. 1 (2023): 012040. http://dx.doi.org/10.1088/1742-6596/2566/1/012040.

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Abstract In this study, the performance of A-reinforced sandwich structures made with polymethacrylimide (PMI) foam material is explored. The research focuses on comparing two forming methods, bonding and co-curing. It also tests the static properties of sandwich test pieces under different forming pressures. It reveals that the foam sandwich structure formed under the 0.15 MPa bonding process outperforms the rest regarding static properties. These findings provide valuable insights into the optimal structure-forming process for PMI foam sandwiches, paving the way for future advancements in th

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19

Tönshoff, Hans Kurt, J. Bunte, O. Meier, and L. Engelbrecht. "Deformation Behaviour of Sheet Metals in Laser Assisted Hydroforming Processes." Advanced Materials Research 6-8 (May 2005): 361–68. http://dx.doi.org/10.4028/www.scientific.net/amr.6-8.361.

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Cupping small form elements in hydroforming processes requires high work pressures and clamping forces and thus high capital investments for presses. Localised laser heating used during sheet metal hydroforming processes should reduce the necessary work pressure. By reducing the yield strength and the strain hardening using local heating, small form elements can be formed at very low pressures of 2 MPa, whereas cold forming requires pressures which are 20-50 times higher. Besides the proportion of forming temperature and work pressure, temperature distribution is very important and can be adju

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20

Khraisheh, Marwan K., and Hussein M. Zbib. "Optimum Forming Loading Paths for Pb-Sn Superplastic Sheet Materials." Journal of Engineering Materials and Technology 121, no. 3 (1999): 341–45. http://dx.doi.org/10.1115/1.2812384.

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The bulge forming performance of Pb-Sn superplastic sheet materials is evaluated under different forming pressure-time profiles. In addition, an “optimum” pressure-time profile based on variable strain rates is proposed. Results of forming time, achieved amount of deformation, and thinning behavior are reported for the different forming pressure profiles. Not only the forming time was significantly reduced, when forming with the optimum pressure profile, but the integrity of the formed part was also maintained. Furthermore, the results show that forming profiles based on uniaxial models cannot

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21

Hauer, Franz, and Kai Willner. "Development of a Friction Law Respecting Plastic Surface Smoothing." Key Engineering Materials 554-557 (June 2013): 1471–77. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.1471.

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Friction has an essential influence on metal forming processes and affects the mould filling strongly. Numerical simulation is widely used because they allow for a efficient product design without the time and cost intensive production of prototype moulds. The quality of the simulation results and thus their reliability is determined by the accuracy of the modelling. For this purpose the applied friction law is of great importance. Characteristic of sheet-bulk metal forming is the coexistence of moderate contact pressures like in sheet metal forming and high contact pressures like in bulk meta

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22

Mosleh, Ahmed O., Anton D. Kotov, Svetlana V. Medvedeva, and Anastasia V. Mikhaylovskaya. "Microstructure Evolution of Ti-Al-Mo-V Titanium Alloy During the Superplastic Forming with FES Estimated Strain Rates Across the Formed Parts at Constant Gas Pressure." Solid State Phenomena 306 (June 2020): 43–52. http://dx.doi.org/10.4028/www.scientific.net/ssp.306.43.

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This paper studies the influence of the strain rate during the superplastic forming on the microstructure evolution of Ti-4Al-3Mo-1V titanium alloy. The finite elements simulation (FES) of the superplastic forming process at a temperature of 875 °C, which considered to be the optimum forming temperature of this alloy, and at a constant uniform gas pressure of 0.4, 0.7, and 1 MPa were performed. The strain rate response across the formed part via FES at each applied gas pressure was analyzed. The superplastic forming using the same forming condition of the FES, applied gas pressure and forming

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23

Nguyen, Manh Tien. "EFFECT OF PROCESS PARAMETERS ON THE DISTRIBUTION OF WALL THICKNESS IN SUPERPLASTIC FORMING OF A HEMISPHERICAL PART FROM Al-Zn-Mg-Cu ALUMINUM ALLOY." Journal of Science and Technique 14, no. 3 (2019): 11–18. http://dx.doi.org/10.56651/lqdtu.jst.v14.n03.439.

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This paper presents the research results on forming simulation in blow forming of a hemispherical part from aluminum alloy in superplastic conditions. The 2D Deform software is used for numerical simulation. The results are intended to assess to influence of process parameters (such as deformation temperature T, forming pressure p, back pressure p0) on the distribution of wall thickness. Based on the research results allow to determine the reasonable process parameters (superplastic forming use back pressure and deformation temperature of 530°C, forming pressure of 25 atm) that improve the deg

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24

Huttel, Dominik, Peter Groche, Alexander May, and Markus Euler. "Friction Measurement Device for Fiber Material Forming Processes." Advanced Materials Research 966-967 (June 2014): 65–79. http://dx.doi.org/10.4028/www.scientific.net/amr.966-967.65.

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With the growing demand of sustainability and rising requirements by law and politics, paper as a natural, renewable fiber material is in the focus of research and production technology again. With this, requests for the predictability of material behavior during the production process rise. Especially in forming, interactions between work piece and the tool surface can have a major influence on the forming behavior. This study discuss available friction measurement systems for paper in the context of forming processes. Based on this a new friction measurement device is presented. Effects of t

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25

CHEN, SHU, ZHIWU XU, ZHENGWEI LI, ZHONGWEI MA, LIN MA, and JIUCHUN YAN. "The Horizontal Sonocapillary Effect in UltrasonicAssisted Soldering." Welding Journal 102, no. 6 (2023): 113–24. http://dx.doi.org/10.29391/2023.102.009.

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In this work, the horizontal sonocapillary effect in ultrasonic-assisted soldering was investigated via numerical simulations and experiments. The numerical simulation results indicated that acoustic pressures in the liquid solder exhibited distinct sinusoidal features with negative offsets, forming a negative average acoustic pressure. When the ultrasonic vibrations were transmitted to the lower substrate in the joint clearance, the average acoustic pressures decreased from the acoustic pressure center to the filling front, forming a negative acoustic pressure gradient in the horizontal direc

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26

Jalaluddin, Mohamed Lokman, Umar Al-Amani Azlan, Mohd Warikh Abd Rashid, Norfauzi Tamin, Mohamad Najmi Masri, and Muchlis Muchlis. "Effect of Forming Pressure on the Microstructure and Mechanical Characteristics of Dense Porous Ceramics." Journal of Advanced Research in Micro and Nano Engineering 30, no. 1 (2025): 115–29. https://doi.org/10.37934/armne.30.1.115129.

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Ceramics are widely used in industrial applications due to their exceptional mechanical strength, thermal stability, and chemical resistance. However, the forming pressure during production significantly influences the microstructure and porosity, which in turn affect their mechanical properties. This study investigates the effects of varying forming pressures on the microstructure, porosity, and mechanical properties of dense porous ceramics, addressing the gap in understanding optimal forming conditions for enhanced performance. A composite of kaolinite clay, silica, feldspar, and carbon bla

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27

Cheng, Xiao Min, Lin Zhou, Liang Wang, and Gen Zhou. "The Experiment Study of Water Jet Incremental Sheet Metal Forming." Advanced Materials Research 230-232 (May 2011): 1010–13. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.1010.

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For the manufacture of panel parts, incremental sheet metal forming is significant in reality. This study put forward a method of incremental sheet metal forming: High-handed water jet with constant pressure and speed that caused by high pressure system acts on sheet metal and makes it out of shape, following transmutation superposition the requisite parts can be made. Based on this theory, a system of incremental sheet metal forming by using water jet is designed. At the same time, a forming experiment device is developed which is used to test the influence of water jet pressure, sheet metal

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28

Lee, Ho Sung, Jong Hoon Yoon, Joon Tae Yoo, and Woo Hyun Cho. "Biaxial Gas-Pressure Forming of a Duplex Stainless Steel." Advanced Materials Research 214 (February 2011): 374–77. http://dx.doi.org/10.4028/www.scientific.net/amr.214.374.

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By using biaxial gas-pressure forming method, it is possible to predict sheet metal forming behavior during hot forming process. The purpose of this study is to investigate the deformation behavior during equi-biaxial forming of a duplex stainless steel using conical and hemispherical dies. The present study constructs an analysis model to predict biaxial sheet forming behavior of duplex steel from results of tension tests. The results demonstrate that the developed technology to process design of high temperature gas-pressure forming by the finite element method can be applied to various type

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29

Thu, Nguyen Thi, and Nguyen Dac Trung. "Experimental modeling of fluid pressure in hydrostatic forming for cylindrical product." International Journal of Modern Physics B 34, no. 22n24 (2020): 2040158. http://dx.doi.org/10.1142/s021797922040158x.

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Forming fluid pressure is an important technological parameter that determines whether a product can be accurately formed according to the size and profile of the die in hydrostatic forming technology. The expected value of this parameter is often very high because it acts as the punch in forming complex products from sheet metal. However, it is difficult to achieve high values because the forming fluid pressure depends on the ability to hold high pressure of equipment system and input parameters including the blank holder pressure, the depth of die, the thickness of workpiece. Moreover, it is

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30

Takagi, Hitoshi, and Yoshiyuki Okitsu. "Enhancement in Mechanical Properties of Bamboo by Press Forming." Materials Science Forum 675-677 (February 2011): 647–50. http://dx.doi.org/10.4028/www.scientific.net/msf.675-677.647.

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Raw Japanese timber bamboo was hot-pressed in order to investigate its static and dynamic mechanical properties such as flexural strength, flexural modulus, and impact strength. The purpose of this work was to examine the effect of molding pressure on the mechanical properties of hot-pressed bamboo. The hot-pressing pressures used were varied from 5 to 100 MPa and hot-pressing temperature was fixed to be 160°C. The density, flexural strength and flexural modulus remarkably increased up to 20 MPa, and then gradually increased. However Izod impact strength showed different pressure dependence. I

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31

Trzepieciński, Tomasz, Krzysztof Szwajka, and Marek Szewczyk. "Pressure-Assisted Lubrication of DC01 Steel Sheets to Reduce Friction in Sheet-Metal-Forming Processes." Lubricants 11, no. 4 (2023): 169. http://dx.doi.org/10.3390/lubricants11040169.

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Friction in sheet-metal-forming processes not only affects the values of the force parameters of the process but also determines the quality of the surface of the drawpieces. This paper presents an approach to reducing the coefficient of friction by directly applying pressurized oil to the contact zone. For this purpose, a special test stand was built to carry out the strip draw test, commonly used to model the phenomenon of friction in the deep-drawing process. This test consisted of pulling a strip between flat countersamples made of 145Cr6 cold-work tool steel covered with an abrasion-resis

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32

Patel, Chandrahas, and Sachin D. Kore. "Dual Electromagnetic Forming Using Single Uniform Pressure Coil." Key Engineering Materials 611-612 (May 2014): 723–30. http://dx.doi.org/10.4028/www.scientific.net/kem.611-612.723.

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Electromagnetic Forming (EMF) is a high-speed forming process that can be applied for shaping, joining and cutting of workpieces made of electrically conductive material eg. aluminium. This paper proposes a dual electromagnetic forming method. Energy efficiency of the dual electromagnetic forming is compared with the single sided electromagnetic forming using FEM simulations. In uniform pressure rectangular coil, the top layer of the coil assists in the deformation of the workpiece while the bottom layer hinders the workpiece deformation.To make the bottom layer of the coil also to assist in t

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33

Liu, Ying, Feng Xu, and Bing De Wang. "Analysis and Calculation of the Art of Internal High Pressure Forming." Advanced Materials Research 746 (August 2013): 374–79. http://dx.doi.org/10.4028/www.scientific.net/amr.746.374.

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nternal high pressure forming is a new technology producing hollow light components. Due to the process of internal high pressure forming is very complicated with many factors, the dissertation will focus on the use of plastic-elastic force theory to acquire the hydraulic pressure needed and the tubes wall thickness in the final forming fillet. Based on the assumption of volume's incompressibility condition, we analyze and calculate the stress and strain of the tubes wall. Finally we estimate the formula of the hydraulic pressure needed in the forming process. The whole work can offer a concis

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Menshikova, Svetlana G., and Nikolai M. Chtchelkatchev. "Local Structure and Solidification of Al-Ni-Co-REM Melts at High Pressure (up to 10 GPa)." Himičeskaâ fizika i mezoskopiâ 26, no. 2 (2024): 226–37. http://dx.doi.org/10.62669/17270227.2024.2.20.

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High pressure affects the solidification of glass-forming melts based on aluminum with transition and rare earth metals, allowing the synthesis of new metastable compounds that are stable for quite a long time under normal conditions. An attempt was made to connect high pressure with the glass-forming ability of melts. Using X-ray diffraction and electron microscopy methods, the effect of high pressure (up to 10 GPa) on the solidification of melts of complex multicomponent glass-forming alloys Al86Ni4Co4Gd6, Al86Ni2Co6Gd6, Al86Ni6Go4Gd2Er2, Al86Ni6Co4Gd2Tb2 with a temperature of 1800 K under c

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35

Wu, Chang Ming, Yan Yang, Hui Min Sun, et al. "Effect of Molding Processing on Properties of YAG Porous Ceramics via Dry Pressing Molding Method." Materials Science Forum 934 (October 2018): 134–39. http://dx.doi.org/10.4028/www.scientific.net/msf.934.134.

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YAG materials have a number of unique properties, the application is very extensive. In order to improving the properties of YAG porous materials, the effect of forming processing on the properties of YAG porous ceramics is investigated. Through the results and analysis, the conclusions showed that the porosity of YAG porous ceramics gradually decreased with the molding pressure increases, and the compressive strength of YAG porous ceramics shows a rising trend. The size and number of pores in the microstructure are reduced with increasing the forming pressure, there are inherently many voids

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Chun, Myoung Pyo, Hyo Soon Shin, Sang Il Hyun, and Byung Ik Kim. "Microstructures and Electrical Properties of BaTiO₃ PTC Ceramics." Advanced Materials Research 804 (September 2013): 118–22. http://dx.doi.org/10.4028/www.scientific.net/amr.804.118.

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The microstructure, especially porosity, of PTC (positive temperature coefficient) thermistor based on BaTiO3 was controlled with a forming pressure. The relationship between theirPTCR properties and microstructureswas investigated with an optical and SEM (Scanning Electron Microscope) images and digital multimeter. Disk samples were fabricated by pressinguniaxially at various pressures of 100~15000kg/cm2 and sintering at 1265°C in reducing atmosphere and finally re-oxidizing at 700°C in air. The porosity of the samples decreased rapidly from 45% to 8% with increasing the forming pressure from

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37

Kamal, Manish, and Glenn S. Daehn. "A Uniform Pressure Electromagnetic Actuator for Forming Flat Sheets." Journal of Manufacturing Science and Engineering 129, no. 2 (2006): 369–79. http://dx.doi.org/10.1115/1.2515481.

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High velocity electromagnetic forming can lead to better formability along with additional benefits. The spatial distribution of forming pressure in electromagnetic forming can be controlled by the configuration of the actuator. A new type of actuator is discussed which gives a uniform pressure distribution in forming. It also provides a mechanically robust design and has a high efficiency for flat sheet forming. A simplified analysis of the actuator is presented that helps in the design of the system. Examples of uses of the actuator are then presented, specifically with regards to forming sh

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38

M. Balasubramanian. "Pressure Prediction by Programme Logic Control Approach on Superplastic Forming in 7075 Al Alloy." Journal of Basic & Applied Sciences 17 (August 16, 2021): 87–94. http://dx.doi.org/10.29169/1927-5129.2021.17.10.

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A widespread problem in a superplastic forming process is to obtain a uniform thickness distribution in multiple geometry components. Hence, nowadays, the variable pressure control approach has been implementing in order to obtain uniform thickness variation in complex profiles. This paper observed the outcome of various stages in the superplastic forming process for multistage hemispherical die cavity in a newly developed pressure prediction method. Superplastic behaviour such as forming pressure, forming temperature, forming time and thickness distribution are analysed and optimised all para

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39

Sorgente, Donato, and Luigi Tricarico. "Pressure Profile Optimization on a Superplastic Aluminium Alloy." Materials Science Forum 735 (December 2012): 383–94. http://dx.doi.org/10.4028/www.scientific.net/msf.735.383.

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In this work authors present a study of the influence of the pressure profile on forming time and on post-forming characteristics of superplastically formed parts. Material parameters of an aluminium superplastic alloy (ALNOVI-U) were estimated on the basis of experimental tests and of a numerical approach. A numerical model of the forming process was then created and used for evaluating the pressure profile able to keep the maximum strain rate value close to a target value. Pressure profiles were calculated using a strain rate control algorithm, firstly following a conventional approach and m

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40

Gao, Fang, Jian Liu, and Chong Hai Wang. "Porous Silicon Nitride Prepared by Cold Isostatic Pressure." Advanced Materials Research 412 (November 2011): 179–82. http://dx.doi.org/10.4028/www.scientific.net/amr.412.179.

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Porous silicon nitride with pore forming agent of starch were prepared by cold isostatic pressing, forming problem of complex shapes were solved by methods of carbonization of starch and decreasing forming pressure. Products of porous silicon nitride had the performance parameter with density 1.5g/cm3, porosity over 55%, bending strength over 100 MPa.

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41

Xu, Yong, Xiu-Wen Lv, Yun Wang, et al. "Effect of Hot Metal Gas Forming Process on Formability and Microstructure of 6063 Aluminum Alloy Double Wave Tube." Materials 16, no. 3 (2023): 1152. http://dx.doi.org/10.3390/ma16031152.

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The hot metal gas forming process can significantly improve the formability of a tube and is suitable for the manufacturing of parts with complex shapes. In this paper, a double wave tube component is studied. The effects of different temperatures (400 °C, 425 °C, 450 °C and 475 °C) and different pressures (1 MPa, 1.5 MPa, 2 MPa, 2.5 MPa and 3 MPa) on the formability of 6063 aluminum alloy tubes were studied. The influence of hot metal gas forming process parameters on the microstructure was analyzed. The optimal hot metal gas forming process parameters of 6063 aluminum alloy tubes were explor

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Zhang, Dao Cheng, Ke Jun Zhu, Shao Hui Yin, and Yong Jian Zhu. "Numerical Simulation of Glass Bottle Forming Process." Advanced Materials Research 503-504 (April 2012): 136–39. http://dx.doi.org/10.4028/www.scientific.net/amr.503-504.136.

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Glass forming process is a high-volume fabrication method for producing glass containers. In this paper, the mechanisms of glass forming process were analyzed. Combined the coupled thermo-mechanical analysis with the finite element method (FEM) simulation, it was carried out to analyze the key process factors such as forming temperature, forming pressure, friction coefficient. The results show that forming pressure has the greatest influence on the stress.

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Chen, Hui, Lei Zhao, Xi Tang Wang, Shu Jing Li, Liang Feng, and Zhong Xin Lei. "Fabrication of SiO₂ Porous Ceramics from Rice Husk Ash." Advanced Materials Research 881-883 (January 2014): 1035–39. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.1035.

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Porous silica ceramics were prepared from rice husk ash with a small amount of soft clay as workability agent by the in situ combustion pore-forming technique. Then, the effects of the forming pressures on the linear shrinkage, density, porosity, absorption of water and mechanical strength were investigated. The results showed that the pores in the samples consisted of two groups. One was original porous texture from rice husk silica, which ranged from 1-10 μm. The other was formed by burning of carbon and grain packing. Obviously, the greater the forming pressure, the denser the sample. Espec

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Shilin, Alexey G. "ИССЛЕДОВАНИЕ ФУНКЦИОНИРОВАНИЯ ЛЬДООБРАЗУЮЩИХ СРЕДСТВ АКТИВНЫХ ВОЗДЕЙСТВИЙ В РЕАЛЬНЫХ УСЛОВИЯХ ПРИМЕНЕНИЯ". UNIVERSITY NEWS. NORTH-CAUCASIAN REGION. NATURAL SCIENCES SERIES, № 4 (212) (28 грудня 2021): 69–73. http://dx.doi.org/10.18522/1026-2237-2021-4-69-73.

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The article is devoted to the study of the processes of functioning of pyrotechnic generators of ice-forming aerosol under conditions as close as possible to the conditions of real cloud-seeding operations. The influence of external pressure on the functioning of a pyrotechnic generator in the dimensions of a PV-26 ejectable flare equipped with a composition according to RU patent No. 2551343 (containing 15 % of an active reagent) under conditions a pressure to 267 mm Hg (corresponds to the maximum height of the use of generators of this type - 8 km). The experiments were carried out in therma

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KISHIGAWA, Kota, and Yoshihiro HIRATA. "Forming of Aqueous SiC Suspension by Pressure Filtration." Journal of the Ceramic Society of Japan 114, no. 1327 (2006): 259–64. http://dx.doi.org/10.2109/jcersj.114.259.

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., Multhan, J. Babu, Abhijit Dutta, and T. A. Janardhan Reddy. "Experimental Studies of Gas pressure Superplastic Cone Forming." i-manager's Journal on Mechanical Engineering 1, no. 4 (2011): 14–19. http://dx.doi.org/10.26634/jme.1.4.1541.

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Mizuhashi, Fumi, and Kaoru Koide. "Pressure-forming method using a single-mouthguard sheet." Dental Traumatology 34, no. 1 (2017): 41–45. http://dx.doi.org/10.1111/edt.12368.

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Zhang, S. H., J. Danckert, and K. B. Nielsen. "Integral hydro-bulge forming of pressure vessel heads." Journal of Materials Processing Technology 86, no. 1-3 (1999): 184–89. http://dx.doi.org/10.1016/s0924-0136(98)00309-4.

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Jarrar, Firas. "Designing Gas Pressure Profiles for AA5083 Superplastic Forming." Procedia Engineering 81 (2014): 1084–89. http://dx.doi.org/10.1016/j.proeng.2014.10.145.

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Zhang Rui and Zhang Tie-Sheng. "Non-die explosive forming of spherical pressure vessels." Journal of Materials Processing Technology 41, no. 3 (1994): 341–47. http://dx.doi.org/10.1016/0924-0136(94)90170-8.

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