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Journal articles on the topic 'Piercing Punch'

Author: Grafiati

Published: 3 June 2025

Last updated: 20 July 2025

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1

Yang, Yu, Cun Ping Liu, Yong Fu Yuan, and Sheng Guo. "Finite Element Analysis of Wear in Piercing." Applied Mechanics and Materials 275-277 (January 2013): 2156–60. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.2156.

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Present work describes a piercing process using the finite element method in order to investigate the wear of mold punch. In present investigation, the piercing clearance and punch fillet radius was studied by simulating the piercing operation of an AISI 1035 sheet. Simulation used the FEM program ANSYS/LS-DYNA. The results show that the best resistance of the mold punch is reached when the punch round radius reached 0.03mm and piercing clearance reached 0.15mm.

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2

Matsumoto, Ryo, and Hiroshi Utsunomiya. "Cold Piercing of Cylindrical Aluminum Billet with Counter Punch Pressure." Key Engineering Materials 554-557 (June 2013): 613–19. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.613.

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To make a hole with a high aspect ratio (depth/diameter) for lightweight structural components, piercing of cylindrical billet of aluminum alloy was carried out against a counter pressure on a servo-controlled double axis press. To obtain smooth shear surface of pierced hole, the counter pressure was applied to the billet by a counter punch from the opposite side of a piercing punch during piercing. Irrespective of amount of clearance of die–piercing punch, ratio of the length of shear surface/depth of pierced hole in the pierced billet reached about 0.9 by applying a counter punch pressure of

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3

Kim, Dong Hwan, and Se Je Park. "Development of Piercing Technology for CVJ Cage with Thick and Uneven Piercing Holes." Materials Science Forum 773-774 (November 2013): 95–103. http://dx.doi.org/10.4028/www.scientific.net/msf.773-774.95.

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In this paper, to design the piercing punch for thick and uneven steel in piercing process, FE simulation technique has been proposed to predict the deformation behavior of CVJ cage through the simulation of the piercing process. In this research, an optimizing technique based on artificial neural network has been applied for the thick and uneven steel in piercing processes to construct database of the dimension precision depending on the shape of punch. It is indicated that shape of punch plays a significant role to keep the dimension precision and to increase the tool life in the uneven pier

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4

Saengkhiao, Prasan, Komgrit Lawanwong, and Pakorn Chumrum. "Increasing the Hole Expansion Ability of High Strength Steel Sheet by Improving the Pre-Hole Shearing Process." Materials Science Forum 962 (July 2019): 167–74. http://dx.doi.org/10.4028/www.scientific.net/msf.962.167.

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The hole expansion process is a forming process that the fracture easily occurred on the hole edge. Therefore, many research papers presented various processes to make a precision pre-hole shearing to a hole expansion process such as wire cut, EDM, and laser cut. The purpose of this work is to increase a hole expansion ratio on the high strength steel sheet. The conventional piercing by piercing punch and piercing with a counter punch was used to make a pre-hole shearing process in this research paper. The high strength steel grade 590 and 980 MPa of 1.2 mm of thickness were used in the experi

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5

Wojtkowiak, Dominik, and Krzysztof Talaśka. "The influence of the piercing punch profile on the stress distribution on its cutting edge." MATEC Web of Conferences 254 (2019): 02001. http://dx.doi.org/10.1051/matecconf/201925402001.

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Modifying the piercing punch profile may have a positive effect on the belt perforation process. Using the proper shape of the tool may reduce the perforation force and improve the quality of the holes. However, complex geometry of the punch can also cause an adverse stress distribution, which leads to a faster tool wear. In the presented paper, several different piercing punch profiles were tested using FEM analyses in ABAQUS and the obtained stress distributions along its cutting edges were analyzed. For the selected group of the piercing punches, the influence of variable geometrical featur

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6

Teng, Hsiang Yu, Gow Yi Tzou, and Yeong-Maw Hwang. "FEM Simulation on Rotating Piercing Process with Coulomb Friction." Applied Mechanics and Materials 284-287 (January 2013): 127–31. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.127.

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This study proposes a new piercing technology with rotating punch; it carries out an FEM simulation on rotating piercing process using DEFORM-3D commercial software. Frictions among the punch, the blank holder, the dies and the work-piece material are assumed as Coulomb friction, but can be different. The surface of the inner diameter, the effective stress, the effective strain, velocity field, damage, burr and the shearing force can be determined form the FEM simulation. In this study, effects of various piercing conditions such as the clearance, the punch nose angle, the frictional coefficie

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7

Wojtkowiak, Dominik, Krzysztof Talaśka, Dominik Wilczyński, Jan Górecki, and Krzysztof Wałęsa. "A Coupled Eulerian-Lagrangian Simulation and Tool Optimization for Belt Punching Process with a Single Cutting Edge." Materials 14, no. 18 (2021): 5406. http://dx.doi.org/10.3390/ma14185406.

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The objective of this paper is to analyze the belt punching process with the use of a single cutting edge and discuss the influence of geometrical features of the piercing punch on the perforation force. Two basic shapes of the piercing punch with a single cutting edge were tested: tools with the blade pointing inside or pointing outside. The analytical models of the stress distribution in the shearing cross sections were derived for both punches. The presented model, along with the series of empirical tests and Coupled Eulerian-Lagrangian simulation, was used for finding the effective geometr

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8

Kobelev, O. A., M. A. Tsepin, M. M. Skripalenko, and Vladimir A. Popov. "Features of Technological Layout of Manufacture of Unique Mono-Block Large-Dimension Plates." Advanced Materials Research 59 (December 2008): 71–75. http://dx.doi.org/10.4028/www.scientific.net/amr.59.71.

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Blank punch was applied for manufacturing of hollow billets by press piercing. Analysis of piercing by different punches was carried out. Data showing fluctuating of load during piercing and changing of billet’s shape was received.

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9

Aizawa, Tatsuhiko, Yohei Suzuki, Tomoaki Yoshino, and Tomomi Shiratori. "Fabrication of Punch and Die Using Plasma-Assisted 3D Printing Technology for Piercing Sheet Metals." Journal of Manufacturing and Materials Processing 6, no. 3 (2022): 49. http://dx.doi.org/10.3390/jmmp6030049.

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A pair of punch and die was often fabricated using subtractive manufacturing processes such as milling and other machining processes. However, additive manufacturing could be used to perform the same processes. This study explored this possibility. In particular, this study fabricated a pair of T-shaped punch and die made of AISI316L austenitic stainless steel using an additive manufacturing process called plasma-assisted 3D printing. Accordingly, T-shaped negative and positive 2D patterns were screen-printed onto the mirror-polished surfaces of the substrates made of AISI316L austenitic stain

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10

Yang, Yan Xiong. "Study on the Parameters of Piercing Die with Finite Element Method." Advanced Materials Research 690-693 (May 2013): 2265–69. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.2265.

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This paper focused on the piercing process in order to obtain the optimum mold parameters with the finite element method. In present investigation, the clearance, punch-die round radius and the interaction of between clearance and punch-die round radius were studied by simulating the piercing operation of a Q235 sheet. Simulation used the FEM program ANSYS. The results of the present paper showed that clearance was the most influential factor for piercing, and numerical experiments was an effectiveness method to get optimal parameters of mold parameters, and the numerical experiment results sh

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11

Aizawa, Tatsuhiko, Tomomi Shiratori, Tomoaki Yoshino, Yohei Suzuki, and Kuniaki Dohda. "Quantitative Characterization of the Affected Zones in a Single Crystal Fe-6Si Steel Sheet by Fine Piercing." Micromachines 13, no. 4 (2022): 562. http://dx.doi.org/10.3390/mi13040562.

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An iron loss in the motor core was often enhanced by formation of plastically affected zones in piercing the electrical steel sheets. A platform methodology to carry out quantitative evaluation of these affected zones in the pierced electrical steel sheets was proposed to search for the way to minimize the affected zone widths. A coarse-grained electrical steel sheet was employed as a work material for a fine piercing experiment under the narrowed clearance between the plasma-nitrided SKD11 punch and core-die. The shearing behavior by the applied loading for piercing was described by in situ m

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12

SURYAWANSHI, ARVIND G., JAI Y. MULE, and YOGESH B. JOSHI. "DESIGN AND MODIFICATION OF PIERCING DIE TO INCREASE TOOL LIFE AND PRODUCTIVITY." JournalNX - a Multidisciplinary Peer Reviewed Journal 3, no. 7 (2017): 122–26. https://doi.org/10.5281/zenodo.1420962.

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 Now days, manufacturing sectors replaced most expensive and casted components by means of sheet metal parts. From this phenomenon the cost of the products and the weight of the components are reduced as much as possible. The cost of tooling in sheet metal industries contributes a considerable part to the overall cost of manufacturing a component. It is therefore imperative to keep down this cost by ensuring that the tool works for a long period in production without interruption. In this project a Piercing Die is design and develop which consist of number of parts like housing, punch, pu

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13

Aizawa, Tatsuhiko, Tomomi Shiratori, Yoshihiro Kira, and Tadahiko Inohara. "Simultaneous Nano-Texturing onto a CVD-Diamond Coated Piercing Punch with Femtosecond Laser Trimming." Applied Sciences 10, no. 8 (2020): 2674. http://dx.doi.org/10.3390/app10082674.

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In this study, a CVD (Chemical Vapor Deposition)-diamond coated tungsten carbide cobalt (WC (Co)) punch was trimmed to adjust its surface roughness and to significantly reduce its edge curvature for fine piercing by femtosecond laser processing. Through this laser trimming, the surface quality of the diamond coating and the punch edge profile were improved to less than 0.5 μm at the maximum roughness and 2 μm in the edge width, respectively. In parallel with this improvement of surface quality, the side surface of the diamond coating was modified to include nano-textures via the LIPSS (Laser I

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14

Mori, Toshihiko. "Development of Ultrafine Piercing By SiC Fiber Punch." Journal of Manufacturing Science and Engineering 126, no. 4 (2004): 659–65. http://dx.doi.org/10.1115/1.1812776.

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An integrated micropress was developed for ultrafine piercing of metallic foils by a SiC fiber punch. The fiber punch was produced by a series of processes that use buffing and electrolysis operations. The technology incorporates unique tooling and fixturing techniques to handle delicate pinholes, apertures, collimators, and air slits to allow a repeatable manufacturing process with minimal part handling. Since the diagnostic pinholes may be very thin or small in size, it is critical that there is minimal human intervention from the start to the final process of the piercing operation. Selecti

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15

Patel, Trisha, Leslie Scroggins-Markle, and Brent Kelly. "A Dermal Piercing Complicated byMycobacterium fortuitum." Case Reports in Dermatological Medicine 2013 (2013): 1–3. http://dx.doi.org/10.1155/2013/149829.

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Background. Dermal piercings have recently become a fashion symbol. Common complications include hypertrophic scarring, rejection, local infection, contact allergy, and traumatic tearing. We report a rare case ofMycobacterium fortuitumfollowing a dermal piercing and discuss its medical implications and treatments.Case. A previously healthy 19-year-old woman presented complaining of erythema and edema at the site of a dermal piercing on the right fourth dorsal finger. She was treated with a 10-day course of trimethoprim-sulfamethoxazole and one course of cephalexin by her primary care physician

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16

Sun, Lei, Xiaofeng Wang, Qingfeng Wang, et al. "Experimental and Numerical Investigation on the Square Hole Hydro-Piercing Process." Metals 13, no. 6 (2023): 1107. http://dx.doi.org/10.3390/met13061107.

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The hydro-piercing process is an emerging approach to the direct punching of holes on complex hollow components. During tube hydro-piercing, the deformation in the region adjacent to the pierced hole may range from having a substantially flat form to having a countersunk form. To improve the understanding of deformation behavior in square hole hydro-piercing, an experimental setup was designed and the effects of internal pressure and punch corner radius on the deformation sequence, as well as the collapse behavior, were investigated in this study. At the same time, a numerical simulation was c

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17

Wojtkowiak, Dominik, and Krzysztof Talaśka. "Finite Element Analysis of the Axially Non-symmetrical Piercing Punches Performance for Belt Perforation." MATEC Web of Conferences 357 (2022): 02001. http://dx.doi.org/10.1051/matecconf/202235702001.

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Modification of the punch geometry can greatly reduce the force necessary to perform the perforation of the belt. This paper presents research on axially non-symmetrical piercing punches – double sheared one and one with a cylindrical bowl. FEM analysis was performed for a variable tip angle β in the 60-150° range for a double sheared punch or a variable bowl radius R in the 5.25-10 mm range and for a constant punch diameter D = 10 mm and TFL10S belt. Based on the obtained results, the influence of the tip angle β (for the double sheared punch) and the bowl radius R (for a cylindrical bowl pun

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18

Hwang, Yeong-Maw, Hong-Nhan Pham, and Hiu-Shan Rachel Tsui. "Investigation of Punch Shape and Loading Path Design in Hydro-Flanging Processes of Aluminum Alloy Tubes." Metals 11, no. 4 (2021): 636. http://dx.doi.org/10.3390/met11040636.

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Hydro-joining is composed of hydro-piercing, hole flanging and nut-inlaying processes. In this study, a new hydro-flanging process combining hydro-piercing and hydro-flanging is proposed. An internal pressured fluid is used as the supporting medium instead of a rigid die. Three kinds of punch head shapes are designed to explore the thickness distribution of the flanged tube and the fluid leakage effects between the punch head and the flanged tube in the hydro-flanging process. A finite element code DEFORM 3D is used to simulate the tube material deformation behavior and to investigate the form

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19

Yiemchaiyaphum, Suthep, Masahiko Jin, and Sutasn Thipprakmas. "Die Design in Fine-Piercing Process by Chamfering Cutting Edge." Key Engineering Materials 443 (June 2010): 219–24. http://dx.doi.org/10.4028/www.scientific.net/kem.443.219.

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The hole quality on sheet metal parts is directly dependent on the die design and process parameters. In conventional piercing process, the secondary operations such as shaving, reaming and grinding are needed for manufacturing the precise-dimensioned holed parts without any cracks, resulting in the increase of both production time and costs. The fine-piercing process, referenced to the fine-blanking principle, is used to produce the precise-dimensioned holed parts with smooth-cut surfaces over the whole material thickness in a single operation. However, it is difficult to achieve the suitable

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20

Komori, Yukiya, Yohei Suzuki, Kohta Abe, Tatsuhiko Aizawa, and Tomomi Shiratori. "Fine Piercing of Amorphous Electrical Steel Sheet Stack by Micro-/Nano-Textured Punch." Materials 15, no. 5 (2022): 1682. http://dx.doi.org/10.3390/ma15051682.

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The periodic nanotexture was superposed to the micro-textured grooves on the side surface of the punch. These grooves with nanotextures were shaped to have parallel and vertical orientations to the punch stroke direction, respectively. A stack of five amorphous electrical steel sheets was punched out with these micro-/nano-textured punches. The process affected zone at the vicinity of the punched hole was analyzed by SEM (Scanning Electron Microscopy) and a three-dimensional profilometer. The punch surfaces were also observed by SEM to describe the debris particle adhesion on them. The dimensi

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21

TAKEMASU, Teruie, Susumu YAMASAKI, Hideshi MIURA, Ryota MIZUE, Takashi HOSHIYAMA, and Tatsuo OZAKI. "Piercing Process by Punch Striking Using Ultrasonic Vibration." Journal of the Japan Society for Technology of Plasticity 47, no. 548 (2006): 885–89. http://dx.doi.org/10.9773/sosei.47.885.

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22

Landgrov, I. F., and O. A. Sarkisyan. "Piercing plastic-material barriers with a rigid punch." Journal of Applied Mechanics and Technical Physics 25, no. 5 (1985): 771–73. http://dx.doi.org/10.1007/bf00909384.

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23

Chumrum, Pakorn, and Varunee Premanond. "Wear Behavior of the CVD and PVD Coated Piercing Punch." Key Engineering Materials 443 (June 2010): 499–503. http://dx.doi.org/10.4028/www.scientific.net/kem.443.499.

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The purpose of this work is to investigate the effectiveness of PVD and CVD process of TiCN film coating on SKH51 JIS tool steel on reducing wear in piercing operation. Both processes of PVD and CVD were carried out under commercial conditions. It was found that the amount of wear found for TiCN-PVD coated punch is lower than that of CVD coated punch. Adhesive strength of film coated by CVD technique is found lower which is related to photograph taken from SEM show major adhesive wear.

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24

Abidin, Zaenal, Galang Dimas Pratama, Agus Slamet, Farika Tono Putri, Abdul Syukur Alfauzi, and Wahyu Isti Nugroho. "Press Tool Jenis Simple Tool untuk Produksi SHIM Guna Meningkatkan Kualitas Produksi WELCAB." Jurnal Rekayasa Mesin 17, no. 3 (2022): 503. http://dx.doi.org/10.32497/jrm.v17i3.4084.

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<p>Shim tebal 0,3 mm merupakan komponen tambahan produk welcab yang diproduksi oleh departemen produksi Manufaktur di Yogyakarta. Komponen ini digunakan untuk mengatasi masalah ketidaklancaran mekanisme pada komponen standar linear guideway yang menyebabkan timbulnya bunyi (noise) ketika welcab sedang dioperasikan. Latar belakang penelitian ini adalah proses produksi komponen shim tebal 0,3 mm memakan waktu yang relatif lama, 200 detik/pcs dengan kapasitas produksi 18 pcs/jam yang berdampak terjadinya line stop pada proses assembling. Penyebabnya dikarenakan proses produksinya masih dila

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25

Hwang, Yeong-Maw, Hong-Nhan Pham, Ze-Wei Ho, and Yu-Jen Wang. "An Innovative Tube Hydro-Joining Process Combining Piercing, Hole Flanging and Nut Inlaying." Materials 18, no. 9 (2025): 1990. https://doi.org/10.3390/ma18091990.

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This paper proposes a novel tube hydro-joining process, which combines piercing, hole flanging, and nut inlaying. The nut punch shape design proposed by this paper can deliver three advantages of no scrap, no oil leakage, and longer flange length, which can achieve stronger clamping force and accordingly increase the pull out load. First, we use the finite element analysis to investigate the elasto-plastic deformation of the aluminum alloy A6063 tube during the hydro-joining process. A punch-shaped nut with a tapered locking part is designed to increase the elasto-binding strength of the pierc

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26

Kappe, Fabian, Simon Wituschek, Mathias Bobbert, and Gerson Meschut. "Determining the properties of multi-range semi-tubular self-piercing riveted joints." Production Engineering 16, no. 2-3 (2022): 363–78. http://dx.doi.org/10.1007/s11740-022-01105-2.

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AbstractBy applying a variety of strategies, including both the development of new drive concepts as well as the use of lightweight constructions, it is intended to meet the climate targets set by the Paris Agreement. Multi-material design is often used when applying lightweight constructions, especially in the mobility sector. Herby, various materials with different properties are combined to well adapt the structure to the application of force in order to reduce weight. For example, this can result in the combined use of (high-strength) steel and aluminium. However, the increasing number of

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27

Romanencko, V. P., D. V. Sizov, and G. P. Illarionov. "HOLLOW BILLET PUNCH PIERCING PROCESS GEOMETRY PARAMETERS EXPERIMENTAL STUDY." Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy 55, no. 11 (2012): 31–34. http://dx.doi.org/10.17073/0368-0797-2012-11-31-34.

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28

SASADA, Masahiro, Hitoshi KOBAYASHI, and Isamu AOKI. "Influence of Punch Geometry on Small Hole Piercing Characteristics." Transactions of the Japan Society of Mechanical Engineers Series C 70, no. 691 (2004): 867–72. http://dx.doi.org/10.1299/kikaic.70.867.

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29

KOGUCHI, Hideo, Atsushi UENO, Hiroshi TSUJI, and Masatoshi OISHI. "2640 Analysis of hole processing technology by piercing punch." Proceedings of the JSME annual meeting 2005.4 (2005): 117–18. http://dx.doi.org/10.1299/jsmemecjo.2005.4.0_117.

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30

Shergold, Oliver A., and Norman A. Fleck. "Experimental Investigation Into the Deep Penetration of Soft Solids by Sharp and Blunt Punches, With Application to the Piercing of Skin." Journal of Biomechanical Engineering 127, no. 5 (2005): 838–48. http://dx.doi.org/10.1115/1.1992528.

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An experimental study has been conducted on the penetration of silicone rubbers and human skin in vivo by sharp-tipped and flat-bottomed cylindrical punches. A penetrometer was developed to measure the penetration of human skin in vivo, while a conventional screw-driven testing machine was used to penetrate the silicone rubbers. The experiments reveal that the penetration mechanism of a soft solid depends upon the punch tip geometry: a sharp tipped punch penetrates by the formation and wedging open of a mode I planar crack, while a flat-bottomed punch penetrates by the growth of a mode II ring

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31

Aizawa, Tatsuhiko, Tomomi Shiratori, Yoshihiro Kira, Tomoaki Yoshino, and Yohei Suzuki. "Femtosecond Laser Trimming with Simultaneous Nanostructuring to Fine Piercing Punch to Electrical Amorphous Steel Sheets." Micromachines 12, no. 5 (2021): 568. http://dx.doi.org/10.3390/mi12050568.

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A CVD (Chemical Vapor Deposition) diamond coated tungsten carbide (WC) and cobalt (Co) sintered alloy punch was trimmed by the femtosecond laser machining to sharpen its edge with about 2 μm and to simultaneously make nanostructuring to its side surface. In addition to the sharpened edge, its edge profile was formed to be homogeneous enough to reduce the damage layer width by piercing the electrical amorphous steel sheet stack. Each brittle sheet in the stacked work was damaged to have three kinds of defects by piercing; e.g., the droop-like cracking in the thickness and at the vicinity of hol

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32

Ueshiba, Shingo, Keiji Ogi, Yutaka Shigematsu, and Kei Saito. "Characterization of Machining Damages Generated by a Piercing Process in CFRP Laminates." Key Engineering Materials 656-657 (July 2015): 185–90. http://dx.doi.org/10.4028/www.scientific.net/kem.656-657.185.

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This paper presents experimental examples of machining damages resulting from a piercing process in CFRP laminates. A circular perforation was formed in CFRP cross-ply specimen with a punch jig using different blade angles and two distinct dimensional conditions. Surface, cross-sectional, and internal changes to the CFRP specimens after the hole-punching were observed using optical microscopy and X-ray analysis to quantitatively evaluate damage, including delamination, around the perforation area. Results indicate that the optimum piercing is achieved when the blades are parallel to fiber dire

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33

Wojtkowiak, Dominik, Krzysztof Talaśka, Ireneusz Malujda, and Grzegorz Domek. "Analysis of the influence of the cutting edge geometry on parameters of the perforation process for conveyor and transmission belts." MATEC Web of Conferences 157 (2018): 01022. http://dx.doi.org/10.1051/matecconf/201815701022.

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Perforated belts, which are used in vacuum conveyor belts, can have significantly different mechanical properties like strength and elasticity due to a variety of used materials and can have different thickness from very thin (0,7 mm) to thick belts (6 mm). In order to design a complex machine for mechanical perforation, which can perforate whole range of belts, it is necessary to research the influence of the cutting edge geometry on the parameters of the perforation process. Three most important parameters, which describe the perforation process are the cutting force, the velocity and the te

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34

Arslan, Yusuf. "The Effects of Cryogenic Process on the AISI M2 Punch Materials and on the Hole Edge Geometry of the DIN EN 10111-98 Sheet Metal Control Arm Parts." Advances in Materials Science and Engineering 2020 (January 22, 2020): 1–11. http://dx.doi.org/10.1155/2020/9236783.

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In this study, not only the effects of cryogenic processing on the wear of AISI M2 punches but also the effects of punch wear on the hole edge geometry of DIN EN 10111-98 sheet metal control arm parts were investigated. The hole geometry changes are generally associated with punch wear and process parameters. Piercing operations were performed using eccentric press on 2.5-mm-thick sheet metal control arm parts with circular and slot AISI M2 tool steel punches. The punches were traditionally heat treated. The others were cryogenically treated at −145°C in addition to the conventional heat treat

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35

Aoki, Isamu, Masahiro Sasada, Toshiro Higuchi, and Takeshi Yano. "Development of micro-piercing system with punch-damage monitoring function." Journal of Materials Processing Technology 125-126 (September 2002): 497–502. http://dx.doi.org/10.1016/s0924-0136(02)00328-x.

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36

MORI, Toshihiko, and Kunihiko NAKASHIMA. "Development of Ultra-Fine Piercing By Using SiC Fiber Punch." Transactions of the Japan Society of Mechanical Engineers Series C 65, no. 629 (1999): 369–74. http://dx.doi.org/10.1299/kikaic.65.369.

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37

Hwang, Yeong-Maw, Wei-Han Dai, and Chiao-Chou Chen. "Investigation of punch shape design in tube hydro-piercing processes." International Journal of Advanced Manufacturing Technology 110, no. 7-8 (2020): 2211–20. http://dx.doi.org/10.1007/s00170-020-05996-2.

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38

Gökay Korkmaz, Habip, Serkan Toros, Mehmet Halkaci, and Hüseyin Selçuk Halkaci. "Investigation of Hydro-piercing Method for Stainless Steels by Finite Element Method." MATEC Web of Conferences 220 (2018): 01003. http://dx.doi.org/10.1051/matecconf/201822001003.

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Researches and studies on hydroforming process, which is a method that is getting more and more popular every day thanks to its many advantages in application, are ongoing. It is possible to pierce- the holes on a tube or sheet hydroformed part using hydropiercing method after the forming operation. In this study, hydropiercing process of a 304 stainless steel is simulated via the LS-Dyna in 2D axial symmetry model. In the simulations two types of punch movement was investigated to determine the contribution to the burr formation. In the simulations, Jonson-Cook hardening and damage model were

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39

Kulakov, N. A., and A. N. Lyubin. "Research of the Punch Interaction with Composite Protective Panel." Izvestiya MGTU MAMI 2, no. 1 (2008): 53–56. http://dx.doi.org/10.17816/2074-0530-69550.

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The work examines the structure of a protection composite panel consisting of a crushing layer (ceramic discrete elements of a cylindrical shape) and a restraining layer below (metallic leaf). This protection panel can be used for an armour-piercing bullet protection of the car. Here is the strength calculation of ceramic elements and metallic protective layer dynamic interaction under bullet impact. The problem was solved under a variety of protection panel parameters in order to define their proper values.

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Hassannejadasl, Amir, and Daniel E. Green. "Numerical Modeling of Tube Hydropiercing Using Phenomenological and Micro-Mechanical Damage Criteria." Key Engineering Materials 549 (April 2013): 172–79. http://dx.doi.org/10.4028/www.scientific.net/kem.549.172.

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Hydropiercing is an efficient way of piercing holes in mass produced hydroformed parts with complex geometries. By driving piercing punches radially into a hydroformed and fully pressurized tube, holes will be pierced and extruded into the tube-wall. Recent experimental studies have shown that the formability of advanced high strength steel (AHSS) tubes can be increased with the application of internal pressure. In this study, three-dimensional finite element simulations of a tube hydropiercing process of a dual phase steel (DP600) were performed in LS-DYNA, using phenomenological, micromechan

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MATSUDA, Shinya, Syoya UEMURA, and Keiji OGI. "Piercing Process by Punch Press with Negative Clearance for CFRP Laminates." Proceedings of the Materials and Mechanics Conference 2019 (2019): GS22. http://dx.doi.org/10.1299/jsmemm.2019.gs22.

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MORI, Toshihiko, Kenji HIROTA, Shinkoh SENDA, and Hiroharu IIZUKA. "422 Proposal of Micro Piercing Process Utilizing Flying Object for Punch." Proceedings of Conference of Tokai Branch 2001.50 (2001): 223–24. http://dx.doi.org/10.1299/jsmetokai.2001.50.223.

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MURAKAMI, Hiroya, Nobuyoshi KASAHARA, Yoshihiko MOCHIDUKI, Hisanobu KANAMARU, and Takaaki IMURA. "Evaluation of Adhesion Resistance of PW Punch in Fine Piercing ofSteel Plate." Journal of the Japan Society for Technology of Plasticity 50, no. 577 (2009): 119–23. http://dx.doi.org/10.9773/sosei.50.119.

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MATSUNO, Takashi, Koichi SATO, Akihiro UENISHI, Shigeki HIGUCHI, Tetsuya MASUDA, and Takayuki SHIMIZU. "Effects of Piercing Punch Coating on Hole-expansion Ratio and Fatigue Properties." Journal of the Japan Society for Technology of Plasticity 56, no. 649 (2015): 133–38. http://dx.doi.org/10.9773/sosei.56.133.

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Ohashi, Takahiro, Hong Ji Lian, and Susumu Saito. "Study on Precise Stamping under Eccentric Load Using a Multi-Point Die-Support Structure." Key Engineering Materials 447-448 (September 2010): 371–75. http://dx.doi.org/10.4028/www.scientific.net/kem.447-448.371.

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In this study, the authors employ a multi-point die-support structure to hold the punch plate of a stamping die in order to intercept useless force from the slide of a press machine. The developed multi-point support structure has 12 support cells (support units) between the punch plate and the slide of the press machine; the cells are metal cylinders working as springs. The support unit has a ball contact at the interface of the punch plate, and the interface freely for rotates and slides horizontally. The support unit has strain gauges on the side surface, and we can determine the bearing lo

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Hsu, Yuan Chuan, and Tung Sheng Yang. "A Predictive Model Construction for the Sheared Planes in Sheet Metal Shearing Process." Key Engineering Materials 364-366 (December 2007): 590–94. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.590.

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The shearing processes such as the blanking and piercing of sheet metals have been often used to prepare workpiece for subsequent forming operation. The sheared plane plays an important role in the shearing products’ dimension precision and their functions. The quality of sheared plane is affected not only by the material characteristics but also by the process parameters. In the current study, the finite element method is used to investigate the shearing process of sheet metals. Then, the neural network was employed to construct the relationship model of shearing process parameters related to

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Aizawa, Tatsuhiko, Tomoaki Yoshino, Yohei Suzuki, and Tadahiko Inohara. "Micro-/Nano-Texturing onto Plasma-Nitrided Tool Surface by Laser Printing for CNC Imprinting and Piercing." Micromachines 13, no. 2 (2022): 265. http://dx.doi.org/10.3390/mi13020265.

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A new data transformation method for micro-manufacturing using a topological model for a micro-/nano-texture was proposed for a surface-decorated product. Femtosecond laser printing was utilized to form the micro-/nano-textures into the hardened thick layer of dies by plasma nitriding. At first, the plasma-nitrided AISI316L flat substrate was laser-printed as a punch to imprint the tailored nano-textures onto the AA1060 aluminum plate for its surface decoration with topological emblems. Second, the plasma-nitrided SKD11 cylindrical punch was laser-trimmed to form the nanostructures on its side

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Gomah, Mahmoud, and Murat Demiral. "An Experimental and Numerical Investigation of an Improved Shearing Process with Different Punch Characteristics." Strojniški vestnik – Journal of Mechanical Engineering 66, no. 6 (2020): 375–84. http://dx.doi.org/10.5545/sv-jme.2020.6583.

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Blanking and piercing shearing processes have been widely used to manufacture workpieces for industrial, commercial and testing purposes. During the operation, the punch is exposed to higher stresses and, due to the cycled contact of opposite surfaces, it can be worn significantly. As its surface directly affects the quality of sheet products and causes some surface defects, its performance plays a significant role. In this study, various tools with different characteristics were investigated for an improved shearing process. First, a novel punch with a hemispherical ball at the centre of its

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Shaheen, Wael, Sangarapillai Kanapathipillai, Philip Mathew, and B. Gangadhara Prusty. "Optimization of compound die piercing punches and double cutting process parameters using finite element analysis." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 234, no. 1-2 (2019): 3–13. http://dx.doi.org/10.1177/0954405419855507.

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This article investigates different types of compound die piercing punches and double cutting operation parameters in terms of optimization using finite element technique, Taguchi method, regression analysis, and analysis of variance. The article overcomes the current knowledge gap in studying various cutting edges of piercing punches such as flat, chamfered, flat edge with concave hemisphere, and convex shaped when using the compound dies in stamping operations. The analysis of the compound die is carried out using ANSYS software. The main focus is to determine the contribution of key paramet

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Wojtkowiak, Dominik, and Krzysztof Talaśka. "Finite element analysis of the single shear piercing punch performance for belt perforation." Journal of Applied Mathematics and Computational Mechanics 23, no. 3 (2024): 130–38. http://dx.doi.org/10.17512/jamcm.2024.3.12.

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