Results 261 to 270 of about 13,467,897 (338)
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Journal of manufacturing science and engineering, 2022
This study provides a preform design approach for uniform strain distribution in forging products based on a convolutional neural network (CNN). The appropriate preform design prevents underfill problems by improving material flow inside forging dies ...
Seungro Lee, K. Kim, Naksoo Kim
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This study provides a preform design approach for uniform strain distribution in forging products based on a convolutional neural network (CNN). The appropriate preform design prevents underfill problems by improving material flow inside forging dies ...
Seungro Lee, K. Kim, Naksoo Kim
semanticscholar +1 more source
International Journal of Machine Tools and Manufacture, 1995
Abstract An approach to optimising the design of preforms for metal working operations, exemplified by the design of a preform for forging an H-section, is described. A draft design is produced, in which the principal parameters of the shape are optimised by backward/forward computation according to some pre-selected criterion such as minimum tool ...
R. Ye Lapovok, P.F. Thomson
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Abstract An approach to optimising the design of preforms for metal working operations, exemplified by the design of a preform for forging an H-section, is described. A draft design is produced, in which the principal parameters of the shape are optimised by backward/forward computation according to some pre-selected criterion such as minimum tool ...
R. Ye Lapovok, P.F. Thomson
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, 2020
In hot forging process the design of preform is very important to minimize the forging load and effective stress to improve the die life and quality of components.
V. Pandya, P. George
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In hot forging process the design of preform is very important to minimize the forging load and effective stress to improve the die life and quality of components.
V. Pandya, P. George
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Blanking productions in mechanical engineering (press forging, foundry and other productions), 2021
The isothermal surfaces method for preform design is proposed. The procedure for determining of the preform shape is given. The features in using of the method for forgings with various shapes are considered. The method is illustrated by industrial examples.
A.V. Vlasov +4 more
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The isothermal surfaces method for preform design is proposed. The procedure for determining of the preform shape is given. The features in using of the method for forgings with various shapes are considered. The method is illustrated by industrial examples.
A.V. Vlasov +4 more
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Preform Design in Metal Forming
1989Preform design in metal forming refers to the design of an initial shape of the workpiece that, when it has undergone an associated forming process, forms the required product shape with desired property successfully without formation of defects and without excessive waste of materials.
Shiro Kobayashi, Soo-Ik Oh, Taylan Altan
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Clinical analysis of MatrixMANDIBLE Preformed Reconstruction Plate design
Journal of Cranio-Maxillofacial Surgery, 2017MatrixMANDIBLE Preformed Reconstruction Plates (MMPRPs) were developed to overcome laborious bending procedures of conventional reconstruction plates. The design comprises three sizes with a nonbendable centerpiece and two bendable sections (proximal and distal). According to the surgical protocol unnecessary parts are trimmed after the last used screw
Fabian Duttenhoefer +6 more
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Design of High Preformance CMC Brake Discs
Key Engineering Materials, 1998Ceramic matrix composite (CMC) materials based on 2D-carbon fibre preforms show high heat-absorption capacities and good tribological as well as thermomechanical properties. To take advantage of the full lightweight potential of these new materials in high performance automotive brake discs, the thermal conductivity transverse to the friction surface ...
Walter Krenkel, T. Henke
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Design, Processing and Performance of Structural Preforms
Materials and Manufacturing Processes, 1995Abstract Present and future requirements for preforms in the automotive and aerospace industries are identified with respect to quality, processing, mechanical properties and economic manufacture for RTM and SRIM processes. The status of current preform technology is reviewed including textile, non-woven, continuous and chopped fiber based methods ...
C. D. Rudd +4 more
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Preform Design for Forging Rotationally Symmetric Parts
CIRP Annals, 1995Abstract This paper describes an upper bound modelling based technique to design preforms for forging of rotationally symmetric parts. A reversing algorithm which results in improved metal flow in the final stages of filling the cavity is applied to the precision forging of bevel gears.
F.H. Osman, A.N. Bramley
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Mechanism design and simulation analysis of a new high-speed PET preform removal machine
Mechanics based design of structures and machines, 2020In this article, a new type of polyethylene terephthalate (PET) preform removal machine and its auxiliary device are designed. The structure design of rotating module, traverse module, vertical module and crosswise module of the new type of preform ...
Zeng Huang, Chenxue Wang, Yujie Du
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