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Journal articles on the topic 'Insert shape'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Morovič, Ladislav, Juraj Vagovský, and Ivan Buranský. "Shape Investigation of Worn Cutting Inserts with Utilization of Active Triangulation." Key Engineering Materials 581 (October 2013): 22–25. http://dx.doi.org/10.4028/www.scientific.net/kem.581.22.

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The paper deals with utilization of active triangulation method for shape investigation of cutting inserts after wear. For measuring of cutting insert shape a method using the structured light (fringe projection) was used. As a measuring device the optical 3D scanner GOM ATOS II TripleScan SO was used. Cutting inserts with different shapes was measured. With the measurement method mentioned in the paper the accurate shape of the cutting insert can be captured. From the 3D model moreover it is possible to measure the geometrical properties as well as tool wear, plastical deformation, build-up-e

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2

Shrirao, Pankaj, Hanumant Jagtap, Pramod Magade, Pitambar Gadhave, and Dnyaneshwar Kamble. "Thermo-hydraulic Analysis of Fluid Flowing Through Circular Pipe with Wire Mesh Inserts having Varying Mesh Porosity." IOP Conference Series: Earth and Environmental Science 1285, no. 1 (2024): 012028. http://dx.doi.org/10.1088/1755-1315/1285/1/012028.

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Abstract The experimental investigation was made to analysis the rate of heat transfer of fluid flowing through a heat exchanger with varying wire-mesh porosity inserts. The Nusselt number (Nu), friction factor (f), and overall heat transfer rate (Q) were evaluated using experiments. Three different wire mesh inserts of square, hexagonal and diamond porosity were examined. The SS 316 stainless wire mesh with a porosity of 9 pores per inch (PPI) were inserted normal to the flow field with a pitch distance of 5 cm for each shape of wire mesh. The experiments were conducted on test rig with air a

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3

Ahmed, Md Shamim, and Mohammad Zoynal Abedin. "Review on Heat Transfer Enhancement by Insert Devices." International Journal of Engineering Materials and Manufacture 5, no. 4 (2020): 130–47. http://dx.doi.org/10.26776/ijemm.05.04.2020.03.

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The scientists revise the heat transfer enhancement techniques time to time to achieve better performance and to obtain optimized designs of heat exchangers. The present study reviews the performance and techniques of heat transfer enhancement using various insert devices such as twisted tape and wire coil insert as well as completely different forms of other inserts like air-foil shape inserts, X-shaped twisted tape inserts, baffles and V-winglets inserts with various types of medium and nanofluids. According to the summary of recent significant researches on the heat transfer enhancement by

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Stafford, Myra, Robert L. Geneve, and Jack W. Buxton. "Marigold Root Growth in 12-cm Containers Modified with Two or Four Copper-treated Inserts." HortScience 31, no. 4 (1996): 679f—680. http://dx.doi.org/10.21273/hortsci.31.4.679f.

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This study evaluated the effect of container shape and copper hydroxide on root and shoot development of marigold (Tagetes patula `Little Devil Flame') seedlings. Containers were modified in shape and volume by gluing triangular polycarbonate inserts vertically onto sides of the container. The inserts were either painted with copper or not painted. Inserts decreased container volumes (no insert = 480 cm3, two inserts = 340 cm3, and four inserts = 200 cm3). After 38 days the seedling roots were scanned for computer analysis, and leaf area and dry weights were determined. Copper effectively prev

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Yang, Jin, Can Weng, Jun Lai, Tao Ding, and Hao Wang. "Molecular Dynamics Simulation on the Influences of Nanostructure Shape, Interfacial Adhesion Energy, and Mold Insert Material on the Demolding Process of Micro-Injection Molding." Polymers 11, no. 10 (2019): 1573. http://dx.doi.org/10.3390/polym11101573.

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In micro-injection molding, the interaction between the polymer and the mold insert has an important effect on demolding quality of nanostructure. An all-atom molecular dynamics simulation method was performed to study the effect of nanostructure shape, interfacial adhesion energy, and mold insert material on demolding quality of nanostructures. The deformation behaviors of nanostructures were analyzed by calculating the non-bonded interaction energies, the density distributions, the radii of gyration, the potential energies, and the snapshots of the demolding stage. The nanostructure shape ha

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Vignesh, Ganesan, Debabrata Barik, Samraj Aravind, Ponnusamy Ragupathi, and Munusamy Arun. "Numerical investigation of dimple-texturing on the turning performance of hardened AISI H-13 steel." International Journal for Simulation and Multidisciplinary Design Optimization 13 (2022): 10. http://dx.doi.org/10.1051/smdo/2021043.

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Forming micro-dimples nearer to the cutting edge on the rack face of the tungsten carbide cutting inserts will positively influence the machinability. However, it is challenging to machine the perfect micro-dimple dimensions by utilizing the available machining techniques. Finite element analysis can be an efficient way to observe the influence of dimple-texture area density, micro-dimple size, and various micro-dimple shapes on cutting inserts' machinability. This paper numerically analyses the impact of micro-dimple-textured cutting inserts in dry machining of AISI H-13 steel using AdvantEdg

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Struzikiewicz, Grzegorz. "Application of 3D Imaging for Analyzing the Chip Groove Shapes of Cutting Inserts." Applied Sciences 14, no. 7 (2024): 3134. http://dx.doi.org/10.3390/app14073134.

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An effective chip formation process is significant for an efficient metal-cutting process. Long continuous chips can lead to scratches on the machined surface, increasing the risk to operator safety and stability of the machining process. The use of chip grooves on cutting inserts allows for control of the chip formation and breaking process during machining. The shape of the rake surface and the design of the chip groove also affect the efficiency of the machining process. The article presents the use of 3D imaging to analyze changes in the selected chip groove shapes depending on the cutting

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Sun, Bao Jun, and Xi Wu Fang. "The Optimization of Edge-Shape Parameter for Curve-Edge Milling Insert Based on Thermal-Mechanic Coupling Physical Field." Advanced Materials Research 308-310 (August 2011): 1665–68. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.1665.

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The edge shape of milling insert has important influence on the heat loading and mechanical loading during metal cutting. The optimization of edge-shape parameter for curve-edge milling insert based on evaluation criteria of thermal-mechanic coupling field was carried out in order to improve the thermal-mechanic coupling field and to raise lifetime and production rate of milling insert. A new edge shape function was obtained. The curve-edge milling insert was designed driven by the edge function. The coupling field of milling insert has obvious improvement by finite element analysis (FEM). The

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9

Papadakis, Loucas, Stelios Avraam, Demetris Photiou, Simona Masurtschak, and Juan Carlos Pereira Falcón. "Use of a Holistic Design and Manufacturing Approach to Implement Optimized Additively Manufactured Mould Inserts for the Production of Injection-Moulded Thermoplastics." Journal of Manufacturing and Materials Processing 4, no. 4 (2020): 100. http://dx.doi.org/10.3390/jmmp4040100.

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Injection moulding is one the most familiar processes for manufacturing of plastic parts by injecting molten thermoplastic polymers into a metallic mould. The cycle time of this process consists of the phases of injection, packing, cooling, and ejection of the final product. Shortening of cycle time is a key consideration to increase productivity. Therefore, in this manuscript the adoption of additively manufactured mould inserts with conformal cooling channels by means of selective laser melting (SLM) with the aim to reduce process cycles is presented. The design and manufacture of a mould in

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Valdez, Dustin, Jami Fukui, Thomas Wolfgruber, Lambert Leong, Gertraud Maskarinec, and John Shepherd. "Abstract P3-01-13: Comparing portable and clinical ultrasound systems using 3D printed breast phantom inserts." Cancer Research 82, no. 4_Supplement (2022): P3–01–13—P3–01–13. http://dx.doi.org/10.1158/1538-7445.sabcs21-p3-01-13.

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Abstract Background: Late-stage breast cancer rates in the Pacific where mammography services are limited are exceedingly high. Therefore, alternative accessible breast cancer screening technologies such as portable ultrasound is needed. However, little is known about the performance of portable ultrasound when compared to clinical ultrasound for use in breast cancer screening. By utilizing 3D printing technology, it is possible to design breast phantom inserts to replicate various types of lesions. In this study, we utilized 3D printed breast phantom inserts to compare portable and clinical u

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Anagonye, Aloysius U., and David A. Stephenson. "Modeling Cutting Temperatures for Turning Inserts With Various Tool Geometries and Materials." Journal of Manufacturing Science and Engineering 124, no. 3 (2002): 544–52. http://dx.doi.org/10.1115/1.1461838.

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Temperatures are of interest in machining because cutting tools often fail by thermal softening or temperature-activated wear. Many models for cutting temperatures have been developed, but these models consider only simple tool geometries such as a rectangular slab with a sharp corner. They do not simultaneously account for tool nose radii and insert shape effects, even though it is known in practice that these features affect tool life and thus presumably tool temperature. This report describes a finite element study of tool temperatures in cutting that accounts for tool nose radius and inclu

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Mogaji, Taye Stephen, Emmanuel Tolulope Idowu, and Tien-Chien Jen. "Numerical Simulation for Comparative Thermo-Hydraulic Performance of Turbulent Flow in Tubes with Twisted Tape Inserts." Journal of Engineering Science 16, no. 2 (2020): 71–100. http://dx.doi.org/10.21315/jes2020.16.2.4.

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This article focused on investigating numerically the effects of key design parameters including tape thickness, tube wall to tape edge clearance and three different perforated shapes cut (circular, triangular and pentagon) on the heat transfer coefficient enhancement in tube with twisted tape inserts. Water was considered as the working fluid under the turbulent flow of Reynolds number (Re) between 12,000 and 22,000, with constant wall temperature of the tubes. It is found that due to the swirling flow and efficient mixing of the fluid, all the tape inserts considered in this study produced b

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Shvets, S. V., and V. P. Astakhov. "Effect of Insert Angles on Cutting Tool Geometry." Journal of Engineering Sciences 7, no. 2 (2020): A1—A6. http://dx.doi.org/10.21272/jes.2020.7(2).a1.

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An analysis of publications has shown that mechanically clamped indexable inserts are predominantly used in modern tool manufacturing. Each insert has its shape and geometry in the tool coordinate system. The static system’s required geometry is achieved by the tilting of the insert pocket in the radial and axial directions. Therefore, it is of great importance in the tool design to know the relationships between the insert’s geometry parameters in the tool coordinate system where the geometry paraments of the insert are defined and working geometry parameters of the tool defined in the static

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14

Bertsche, Dirk, Paul Knipper, Sebastian Meinicke, Konrad Dubil, and Thomas Wetzel. "Experimental Investigation on Heat Transfer Enhancement with Passive Inserts in Flat Tubes in due Consideration of an Efficiency Assessment." Fluids 7, no. 2 (2022): 53. http://dx.doi.org/10.3390/fluids7020053.

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This paper presents results of an experimental investigation on pressure drop and heat transfer for a wide range of Reynolds and Prandtl numbers ranging from 8 < Pr < 60 and 40 < Re < 3500, for flat tubes without and with passive inserts. For three different kinds of passive insert designs, the impact on heat and momentum transfer due to coaction of the total set of passive inserts with different shape and amount was investigated. Experimental results were analyzed regarding two main aspects: Heat transfer mechanisms and pressure drop induced by friction and form drag forces due to

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Zhou, Fusheng, Ruodong Huang, Chao Gao, et al. "Abnormal Breakdown Process and Mechanism of High-performance Epoxy Insulation." Journal of Physics: Conference Series 2228, no. 1 (2022): 012048. http://dx.doi.org/10.1088/1742-6596/2228/1/012048.

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Abstract In recent years, various faults caused by insufficient mechanical properties of high-performance epoxy insulating parts occur from time to time. The breakdown position is epoxy metal interface, in which an obvious mechanical failure form is found. It is speculated that the failure mechanism may be the failure process caused by combined electrical mechanical breakdown. An insulation failure of epoxy insulating parts was analysed and he similarities and differences of bending and tensile properties of single column leg of different batches of products was studied, which is used to put f

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Bhattacharya, B., G. R. Tomlinson, and J. R. House. "Vibration suppression of structures with viscoelastic inserts." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 216, no. 10 (2002): 983–95. http://dx.doi.org/10.1243/095440602760400959.

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The concept of suppressing flexural and longitudinal wave motion in a free-free beam structure by use of embedded viscoelastic inserts is described. Taking the example of a simple aluminium beam it is shown that the shape of the insert in terms of the incident wave angle plays an important role in the efficient suppression of wave motion. The insert principle is then applied to a ‘top-hat’ stiffener section that forms part of a fibre-reinforced polymeric composite beam structure, typical of that used in the fabrication of marine structures. From this example it is shown that the use of specifi

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17

Jiang, Aisheng, Zhanqiang Liu, and Jinfu Zhao. "A Novel Design Method for Chip Flute of Indexable Insert Drill Used at Large Drilling Depth." Metals 14, no. 12 (2024): 1351. http://dx.doi.org/10.3390/met14121351.

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The design of the chip flute in indexable insert drills significantly influences chip removal efficiency, drill diameter deflection, and drill deformation in the metal drilling process, which are crucial for maintaining drill stability and minimizing deviations in the diameter of the drilled hole. However, traditional chip flute designs fail to meet production standards when drilling deep holes in 42CrMo, particularly at depths reaching up to seven times the hole diameter. This study introduces an innovative optimization method for the chip flute design of indexable insert drills specifically

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18

Islam, M. N., and A. Pramanik. "Effects of Insert Geometry and Feed Rate on Quality Characteristics of Turned Parts." Journal of Advanced Manufacturing Systems 14, no. 03 (2015): 149–66. http://dx.doi.org/10.1142/s0219686715500109.

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This paper investigates experimentally and analytically the influence of insert geometry and feed rate on the quality characteristics of turned parts under the dry cutting condition. A three-level, three-parameter experiment was planned using the design of experiment methodology. The three levels of independent input parameters were: insert shape–rhombus, triangle, and square; nose radius 0.4, 0.8, and 1.2 mm; and feed rate–0.11, 0.22 and 0.33 mm/rev. The measured output parameters were the three most widely used quality characteristics of turned parts–diameter error, circularity and surface f

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Ziemann, Christian, Maik Stille, Florian Cremers, Dirk Rades, and Thorsten M. Buzug. "The effects of metal artifact reduction on the retrieval of attenuation values." Journal of Applied Clinical Medical Physics 18, no. 1 (2016): 243–50. http://dx.doi.org/10.1002/acm2.12002.

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AbstractBackgroundThe quality of CT slices can be drastically reduced in the presence of high‐density objects such as metal implants within the patients’ body due to the occurrence of streaking artifacts. Consequently, a delineation of anatomical structures might not be possible, which strongly influences clinical examination.PurposeThe aim of the study is to clinically evaluate the retrieval of attenuation values and structures by the recently proposed Augmented Likelihood Image Reconstruction (ALIR) and linear interpolation in the presence of metal artifacts.Material and MethodsA commerciall

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20

Pottmeyer, Florentin, Markus Muth, and Kay André Weidenmann. "Research of the Load Bearing Capacity of Shape-Optimized Metal Inserts Embedded in CFRP under Different Types of Stresses." Key Engineering Materials 742 (July 2017): 636–43. http://dx.doi.org/10.4028/www.scientific.net/kem.742.636.

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An efficient implementation of lightweight design is the use of continuous carbon fiber reinforced plastics (CFRP) due to their outstanding specific mechanical properties. Embedded metal elements, so-called inserts, can be used to join metal-based attachments to structural CFRP parts in the context of multi-material design. They differ from other mechanical fasteners and have distinctive benefits. In particular, drilling of the components to be joined can be avoided and, depending on the preforming, fiber continuity can be maintained using such elements. Thus, no local bearing stress is antici

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Nidhi A. Bagmar, Pooja R. Hatwar, Prashant G. Shelke, and Dr. Ravindra L. Bakal. "A Review on "Ocuserts (An Ophthalmic Insert)”." Asian Journal of Pharmaceutical Research and Development 12, no. 6 (2024): 131–39. https://doi.org/10.22270/ajprd.v12i6.1460.

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The eye is God's most wonderful creation of all the sense organs in the human body since it allows us to see numerous objects both near and far away. An ocular implant is a cutting-edge device for treating eye diseases. The design and development of an ocular insert has always been a difficulty for pharmaceutical researchers and manufacturers. Ocuserts, also known as ophthalmic inserts, are "sterile preparations in the form of solid or semisolid, whose size and shape are specially designed to be applied to the eyes". Solvent casting, the Glass Substrate technique, and hot melt extrusion were u

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Hwang, D. Y., and W. A. Foster. "Axisymmetric Free Vibration of Shallow Spherical Shells With a Circular Rigid Insert." Journal of Pressure Vessel Technology 115, no. 2 (1993): 207–9. http://dx.doi.org/10.1115/1.2929517.

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A general solution for the third-order partial differential equations for the axisymmetric free vibration of thin isotropic shallow spherical shells with a rigid insert is presented in this paper. The frequency equation in terms of Bessel functions as well as modified Bessel functions is solved for the fundamental vibrational frequency and mode shape. Both linear and non-linear boundary conditions are applied and the results are compared. The relationship between the vibrational frequency, mode shape and the size of the rigid insert is discussed.

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23

Paschoalinoto, Nelson Wilson, Ed Claudio Bordinassi, Roberto Bortolussi, Fabrizio Leonardi, and Sergio Delijaicov. "The effect of process parameters and cutting tool shape on residual stress of SAE 52100 hard turned steel by high speed machining." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 235, no. 1-2 (2020): 290–300. http://dx.doi.org/10.1177/0954405420929788.

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This study focused on determining the residual stress of SAE 52100 hard-turned steel. The objective was to evaluate and compare the effects of the cutting-edge geometry and cutting parameters (cutting speed, feed rate, and cutting depth) on the residual stresses of three different conventional inserts: S-WNGA08 0408S01020A 7025, T-WNGA08 0408T01020A 7025, and S-WNGA432S0330A 7025. Tests were performed on 60 samples of SAE 52100 hardened steel with an average hardness of 58.5 HRC. The circumferential residual stresses of the samples were measured by X-ray diffraction. A full factorial design of

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Nguyen, Nhu-Tung. "A development method of cutting force coefficients in face milling process using parallelogram insert." EUREKA: Physics and Engineering, no. 5 (September 13, 2021): 36–52. http://dx.doi.org/10.21303/2461-4262.2021.001890.

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This paper presents a modeling method of cutting force and a combination approach of theory and experimental methods in the determination of cutting force coefficients in the face milling process using a parallelogram insert. By the theoretical method, the cutting forces were modeled by a mathematical function of cutting cutter geometry (Cutter diameter, the number of inserts, the insert nose radius, insert cutting edge helix angle, etc.), cutting conditions (depth of cut, feed per flute, spindle speed, etc.), and cutting force coefficients (shear force coefficients, edge force coefficients).

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Nguyen, Nhu-Tung. "A development method of cutting force coefficients in face milling process using parallelogram insert." EUREKA: Physics and Engineering, no. 5 (September 13, 2021): 36–52. https://doi.org/10.21303/2461-4262.2021.001890.

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This paper presents a modeling method of cutting force and a combination approach of theory and experimental methods in the determination of cutting force coefficients in the face milling process using a parallelogram insert. By the theoretical method, the cutting forces were modeled by a mathematical function of cutting cutter geometry (Cutter diameter, the number of inserts, the insert nose radius, insert cutting edge helix angle, etc.), cutting conditions (depth of cut, feed per flute, spindle speed, etc.), and cutting force coefficients (shear force coefficients, edge force coefficients).

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MANTLER, ANDREA, and HELEN CAMERON. "CONSTRUCTING RED-BLACK TREE SHAPES." International Journal of Foundations of Computer Science 13, no. 06 (2002): 837–63. http://dx.doi.org/10.1142/s0129054102001497.

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Cormen et al. describe efficient algorithms for inserting nodes into and deleting nodes from red-black trees. If some binary trees satisfying the definition of red-black trees cannot be built by these algorithms, then theoretical analyses of red-black trees that consider all binary trees satisfying the definition of red-black trees may not accurately describe the behavior of red-black trees in practice. We show that any binary tree shape that satisfies the definition of red-black trees can be built using only the insertion algorithm, RB-INSERT, of Cormen et al. We first describe an algorithm,

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Shi, Li Min, and Cheng Yang. "Cutting Temperature Experiment and Simulation Analysis of the Complex Groove Turning Insert." Materials Science Forum 861 (July 2016): 44–49. http://dx.doi.org/10.4028/www.scientific.net/msf.861.44.

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In order to study the complex groove inserts in the cutting process caused by temperature variation of cutting,Using multi factor cutting method and combined with finite element simulation technology, from cutting parameters and chip-breaking groove two aspects influence on cutting temperature and cutting force cutting tests were carried out and experimental study on the complex groove turning insert edge chamfering, rounded cutting edge radius on cutting temperature effects. Also tested the effects of temperature on the chip shape cutting and breaking, and analyzed the temperature on the Infl

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Kudryashov, E. A., I. M. Smirnov, and D. V. Grishin. "Selecting the Shape of the Insert in a Lathe Cutter." Russian Engineering Research 39, no. 12 (2019): 1046–49. http://dx.doi.org/10.3103/s1068798x1912013x.

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Piska, Miroslav, and Katerina Urbancova. "Advanced Machining of Joint Implant UHMWPE Inserts." Machines 10, no. 11 (2022): 1008. http://dx.doi.org/10.3390/machines10111008.

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The modern orthopaedic implants for applications in hips, knees, shoulders, and spines are composed of hard metal alloys or ceramics and a tribological sub-component that is made of soft materials, with good frictional properties—e.g., UHMWPE (Ultra High Molecule Weight Polyethylene). The UHMWPE implants need to be machined into their final shape after the polymerization and consolidation into a blank profile or near net shaped implant. Thus, machining is a crucial technology that can generate an accurate and precise shape of the implant that should comply with the joints’ function. However, t

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Zhang, Min, Jia-Yu Wang, Jian Su, et al. "Wear Assessment of Tibial Inserts Made of Highly Cross-Linked Polyethylene Supplemented with Dodecyl Gallate in the Total Knee Arthroplasty." Polymers 13, no. 11 (2021): 1847. http://dx.doi.org/10.3390/polym13111847.

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Background: the wear of tibial insert is still one of primary factors leading to failure of total knee arthroplasty (TKA). Dodecyl gallate (DG) has shown improvements in the oxidation stability of highly cross-linked polyethylene (HXLPE). This study aimed to assess the application of HXLPE supplemented with DG (HXLPE-DG) on the tibial insert in TKA concerning the wear resistance and the potential impact on implant fixation; Methods: tibial inserts made of HXLPE-DG were subjected to a 3 million loading-cycle wear test following ISO 14243-1:2009. The loss of mass and wear rate of the tibial inse

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Kazakov, Kirill E., and Svetlana P. Kurdina. "Wear problem for tube with thin nonuniform inner coating and rigid insert with complex profile." E3S Web of Conferences 243 (2021): 02008. http://dx.doi.org/10.1051/e3sconf/202124302008.

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The article describes the formulation of the problem of wear of an elastic pipe with a nonuniform internal coating by a rigid insert, the diameter of which is variable. For this problem, a mathematical model is built, which is a mixed integral equation. The resulting integral equation contains functions related to the variable properties of the coating and the shape of the insert. When constructing an analytical solution, a special approach was used, since standard methods do not allow taking into account the presence of rapidly changing functions in the equation, which can describe the shapes

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Mohd Salleh, Nur Syamimi, Ahmad Rosli, and Muhammad Syahir Ahmad. "3D Printed Mold Insert Infill Analysis for Injection Molding Application." Journal of Modern Manufacturing Systems and Technology 8, no. 1 (2024): 8–17. https://doi.org/10.15282/sqjsm171.

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Injection molding (IM) normally made from steel, such as STAVAX because of its ability to withstand molding forces such as clamping, injection, and holding force. Beside of this ability, the fabrication of steel insert requires machining as such CNC machining and electro discharge machining (EDM). In contrast, a 3D printed mold insert can overcome of these constraints as it can be printed in less time and cost compared to conventional method of insert fabrication. In this research, a mold insert is fabricated using a 3D printer with a key chain shape cavity. The 3D printed insert are printed u

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Hussin, Radhwan, Safian Sharif, Shayfull Zamree Abd Rahim, et al. "Irregular Shape Effect of Brass and Copper Filler on the Properties of Metal Epoxy Composite (MEC) for Rapid Tooling Application." Journal of Manufacturing and Materials Processing 6, no. 6 (2022): 134. http://dx.doi.org/10.3390/jmmp6060134.

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Due to their low shrinkage and easy moldability, metal epoxy composites (MEC) are recognized as an alternative material that can be applied as hybrid mold inserts manufactured with rapid tooling (RT) technologies. Although many studies have been conducted on MEC or reinforced composite, research on the material properties, especially on thermal conductivity and compressive strength, that contribute to the overall mold insert performance and molded part quality are still lacking. The purpose of this research is to investigate the effect of the cooling efficiency using MEC materials. Thus, this

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Chan, Kuen Cheong, and Li Min Zhou. "Static Behaviours of Carbon Fibre Composite Strip with Bifurcated Type Shape Memory Alloy Pins." Key Engineering Materials 334-335 (March 2007): 1153–56. http://dx.doi.org/10.4028/www.scientific.net/kem.334-335.1153.

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A numerical study of the static behaviours of composite strip with bifurcated type shape memory alloy pins has been conducted. The case of bifurcated type shape memory alloy pins inserted inside the composite strip around the hole to reinforce the laminate, which was subjected to the axial stress was simulated. The models for stress analysis were established by using ANSYS finite element programme. Two types of shape memory alloy pins were proposed to insert along the through thickness direction of the carbon fibre woven fabric composite strip to induce the clamping force. The pre-tensioned lo

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Lin, Heng Sheng, Sheng Chi Tsai, Yuan Chuan Hsu, Ming Che Hsiao, Chia Chou Ke, and Bean Yin Lee. "A Design of Forming Dies for a Manifold of Airbag Inflator." Advanced Materials Research 328-330 (September 2011): 849–52. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.849.

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The manifolds of airbag inflator were used to be produced by sheet-metal forming. It comprised at least eleven forming stages to achieve its final shape. Uneven wall thickness and poor dimensional accuracy were the common defects because the planar anisotropy of sheet-metal caused earing on the cup rim. In this study, the cup-shape workpiece is obtained from backward-extrusion of billets, followed by two stages of end-forming of tube and three stages of hole-piercing. During the end-forming production, the tool life of the first forming stage was the most severe because it applies close-die fo

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Rasulov, A., and U. Dalabaev. "Flow in a channel with porous insert." IOP Conference Series: Earth and Environmental Science 990, no. 1 (2022): 012027. http://dx.doi.org/10.1088/1755-1315/990/1/012027.

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Abstract Filtration of an incompressible liquid (gas) in a non-deformable porou s medium is investigated. The results of numerical simulation of the hydrodynamic features of the flow arising after the passage of the liquid through a layer of an immobile porous medium are presented. An interpenetrating model of multiphase media is used to describe such flows. The porosity and permeability of the porous medium, as well as the force of interfacial interaction, are considered in the framework of compliance with the Kozeny-Karman ratio. The influence of the geometrical shape of the bulk layer on th

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Senthilkumar, N., Azhagiri Pon, and T. Tamizharasan. "A Finite Element Simulation Study on Effects of Variation in Machining and Geometrical Parameters in Turning." Applied Mechanics and Materials 592-594 (July 2014): 3–7. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.3.

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In this work, the influence of variation in machining parameters cutting speed, feed rate and depth of cut and geometrical parameters cutting insert shape (included angle), relief angle and nose radius is studied using DEFORM-3D, a finite element simulation software. The cutting tool inserts of various geometries are evaluated to study its performance for varying conditions considering contact temperature and mean stress. Effect of individual parameter is analyzed by varying its value by three different level values, while the other parameter values are set at the optimum condition, likewise f

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Nor, Fethma M., Joong Yeon Lim, Mohd Nasir Tamin, Ho Yong Lee, and D. Kurniawan. "Effects of Starter Defect on Energy Release Rate of Three-Point End-Notch Flexure Tested Unidirectional Carbon Fiber Reinforced Polymer Composite." Polymers 12, no. 4 (2020): 904. http://dx.doi.org/10.3390/polym12040904.

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The mechanics of damage and fracture process in unidirectional carbon fiber reinforced polymer (CFRP) composites subjected to shear loading (Mode II) were examined using the experimental method of the three-point end-notch flexure (3ENF) test. The CFRP composite consists of [0o]16 with an insert film in the middle plane for a starter defect. A 3ENF test sample with a span of 50 mm and interface delamination crack length of 12.5 mm was tested to yield the load vs. deformation response. A sudden load drop observed at maximum force value indicates the onset of delamination crack propagation. The

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Gross, Robert S., and James G. Goree. "Torsion of a Rigid Smooth Elliptic Insert in an Infinite Elastic Plane." Journal of Applied Mechanics 58, no. 2 (1991): 370–75. http://dx.doi.org/10.1115/1.2897195.

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A solution is presented for the non-Hertzian contact stress problem developed during torsion of a smooth rigid elliptic insert in an infinite, linearly elastic plane. The problem is reduced to a singular integro-differential equation which is solved numerically. Results are presented for the contact zones, and for the normal and tangential stresses at the plane-insert interface. The contact region is independent of the magnitude of the applied moment, but depends strongly on the shape of the ellipse, and is weakly dependent on Poisson’s ratio of the plane. Results are also given for the reduct

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Tamri, Norjamalullail, Rozli Zulkifli, Che Husna Azhari, and Albert Uchenna Ude. "Fibre Insert Mould for Injection Moulding." Jurnal Kejuruteraan si3, no. 1 (2020): 51–57. http://dx.doi.org/10.17576/jkukm-2020-si3(1)-08.

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Insert moulding is equivalent to over-moulding. Both processes are achieved by inserting different materials into one another in the same mould to improve product’s capability. This process will increase the value of a resulting product because of the additional material price, material insertion process and cycle time. Such moulding process directly increases the overall price of a product but the price is cheaper compared with that of other processes or materials that have the same shape and strength. This insert moulding process requires two moulding materials. The first material is coated

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Szablewski, Piotr, Stanisław Legutko, Adrian Mróz, et al. "Surface Topography Description after Turning Inconel 718 with a Conventional, Wiper and Special Insert Made by the SPS Technique." Materials 16, no. 3 (2023): 949. http://dx.doi.org/10.3390/ma16030949.

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This paper presents a comparison of surface morphology obtained after machining Inconel 718 by the conventional insert, by Wiper insert and by using the cutting insert made by Spark Plasma Sintering (SPS). The shape of the special insert was obtained by employing Wire Electrical Discharge Machining (WEDM). The paper focuses on the description of surface topography after turning in dry and wet conditions. The performed investigation included longitudinal turning tests of Inconel 718 performed in a range of variable feeds. Surface topography measurements have been performed with the application

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Alassane, SY. "Coupling Shape Optimization and Topological Derivative for Maxwell Equations." Abstract and Applied Analysis 2022 (November 18, 2022): 1–10. http://dx.doi.org/10.1155/2022/2425990.

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The paper deals with a coupling algorithm using shape and topological derivatives of a given cost functional and a problem governed by nonstationary Maxwell’s equations in 3D. To establish the shape and topological derivatives, an adjoint method is used. For the topological asymptotic expansion, two examples of cost functionals are considered with the perturbation of the electric permittivity and magnetic permeability. We combine the shape derivative and topological one to propose an algorithm. The proposed algorithm allows to insert a small inhomogeneity (electric or magnetic) in a given shap

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EMELYANENKO, A. A., and A. V. SHATEEVA. "BACKGROUND AND EXPERIENCE IN MANUFACTURING A THIN-WALLED ANATOMICALLY SHAPED SHELL BY SELECTIVE LASER MELTING OF METAL POWDER." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 1 (296) (January 2025): 7–14. https://doi.org/10.35211/1990-5297-2025-1-296-7-14.

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A method is proposed for modeling and manufacturing a thin-walled curved metal shell of a hearing aid resonator insert that copies the individual anatomical shape of the external ear canal. The choice of shell material is justified, the sequence of modeling and manufacturing of a prototype is given, the features of the technological process are described. The modeling is based on 3D-scanning of the anatomical surface that fits the shell: the ear canal or its impression. The method of selective laser melting (SLM) of metal powder has been adopted as a method of forming (3D-printing). Recommende

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Kobashi, Syoji, Nao Shibanuma, and Yutaka Hata. "Fuzzy Visual Hull Algorithm for Three-Dimensional Shape Reconstruction of TKA Implants from X-Ray Cone-Beam Images." Journal of Advanced Computational Intelligence and Intelligent Informatics 14, no. 2 (2010): 122–27. http://dx.doi.org/10.20965/jaciii.2010.p0122.

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Three-Dimensional (3-D) shape reconstruction of total knee arthroplasty (TKA) implantsin vivoplays a key role to investigate implanted knee kinematics. TKA implants typically consist of metal femoral and tibial components and a polyethylene tibial insert. X-ray computed tomography (CT) causes severe metal artifacts, making the 3-D shape in reconstructed images extremely difficult to understand. This article proposes a new method of 3-D reconstruction from X-ray cone-beam images. Called a fuzzy visual hull, it introduces fuzzy logic in recognizing X-ray images. X-ray cone-beam images are fuzzif

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Park, Joon-Koo, Choon-Man Lee, and Dong-Hyeon Kim. "Investigation on the Thermal Effects of WC-Co Turning Inserts Deposited by Additive Manufacturing of Titanium Alloy Powder." Metals 11, no. 11 (2021): 1705. http://dx.doi.org/10.3390/met11111705.

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Metal additive manufacturing (AM) has been one of the most useful processes in the manufacturing field. It has significant advantages in terms of the benefits of feature freedom and material waste reduction. These processes commonly use a heat source to fabricate a 3D shape through melting of a metal powder and subsequent solidification. The directed energy deposition method can stack the desired amount of material in the required location. This study addresses the thermal effects of a WC-Co cutting tool insert deposited by AM of titanium alloy powder in the turning process. First, the optimal

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Bapat, Prasad, Vaidehi Bapat, and Deepak Phalgune. "Long Bilateral Horseshoe-Shaped Anal Fistula (without Internal Opening) Treated by Kshar Sutra: A Rare Case Report." World Journal of Colorectal Surgery 14, no. 1 (2025): 31–33. https://doi.org/10.4103/wjcs.wjcs_38_24.

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Abstract Anal fistulae can be of different shapes and lengths with multiple openings or branches. Bilateral horseshoe-shaped fistula is a rare and aggressive form of anal fistula. The treatment of the anal fistula has continued a big challenge to date. Only a few cases of a long bilateral horseshoe shape anal fistula without internal opening have been reported. We present a rare case of a 17-cm long bilateral horseshoe-shaped anal fistula with two external openings and without internal openings. The patient was treated using Kshar Sutra (a medicated thread) with weekly thread changes. C-arm im

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Huijgen, Willemijn H. F., Paul F. Gründeman, Tycho van der Spoel, et al. "Resizable Ventricular Patch Plasty in the Porcine Left Ventricle a Pilot Study." Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery 5, no. 1 (2010): 16–21. http://dx.doi.org/10.1097/imi.0b013e3181cfa8f1.

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Objective Endoventricular circular patch plasty is a method used to reconstruct the ventricular cavity in patients with (post) ischemic left ventricular aneurysm or global dilatation. However, late redilatation with mitral regurgitation has been reported, in which postoperative apex shape seems to play an important role. We studied the feasibility of ventricular volume downsizing with a variably shaped patch in porcine hearts. Methods In five in vitro and two acute animal experiments, a dyskinetic aneurysm was simulated with a pericardial insert. Reducing patch surface by changing patch shape

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Eyercioglu, Omer. "Analysis of Dimensional Variations of Precision Gear Forging Die Geometry Due to Shrink Fit." European Journal of Engineering and Formal Sciences 2, no. 3 (2018): 87. http://dx.doi.org/10.26417/ejef.v2i3.p87-95.

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The usual way to shrink fit design for precision forging dies are made by thick wall cylinder approach; i.e., taking the pitch diameter of the gear as bore diameter of the die insert without considering gear tooth shape. However, the compressive pre-stress due to the shrink fitting causes dimensional variations on the gear profile of the die insert. The dimensional accuracy of the final product is dependent on the accuracy of the gear die. Therefore, the dimensional variations due to shrink fit must be pre-determined and the gear tooth profile on the die insert modified accordingly. In this st

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Shin, Kwang Ho, Young Moo Heo, and Jong Deok Kim. "The Development of Small Size Double Side Metal Plate with Internal Structure Utilizing Metal Injection Molding Process." Applied Mechanics and Materials 365-366 (August 2013): 1132–35. http://dx.doi.org/10.4028/www.scientific.net/amm.365-366.1132.

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In this study, it is focused to make a double side metal plate with internal structure. The stainless steel powder (17-4PH 15F) was used in PIM process. PE(HDPE and LDPE) and PP were used to make the sacrificed insert with honeycomb structure using plastic injection molding process. And then these sacrificed insert parts were inserted at metal injection mold and metal injection molding process was carried out to build green part with rectangular shape. Subsequently, de-binding and sintering process were adopted. The dimensional contraction was occurred about 15.5% in width direction and about

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Singh, Bhanu Pratap, Vijay Singh Bisht, Prabhakar Bhandari, and K. S. Rawat. "Thermo-Fluidic Modelling of a Heat Exchanger Tube with Conical Shaped Insert having Protrusion and Dimple Roughness." Aptisi Transactions on Technopreneurship (ATT) 3, no. 2 (2021): 13–29. http://dx.doi.org/10.34306/att.v3i2.200.

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In the present work, thermo-fluidic behavior of a heat exchanger tube with conical shaped insert has been investigated with the help of finite volume method. To enhance the heat transfer rate, two different types of roughness has been used in conical insert i.e. protrusion and dimple roughness. A three-dimensional computational model with RNG turbulence model is used for the simulation and it has been performed for three different diameters (3 mm, 6 mm and 9 mm) and two different pitch space (120 mm and 180 mm) for both protrusion and dimple roughness. The present model has been validated with

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