The Experts below are selected from a list of 7260 Experts worldwide ranked by ideXlab platform
Joost Duflou - One of the best experts on this subject based on the ideXlab platform.
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Single point Incremental Forming of shape memory polymer foam
MATEC Web of Conferences, 2015Co-Authors: Amirahmad Mohammadi, Giuseppina Ambrogio, Hans Vanhove, Mariagioia Attisano, Joost DuflouAbstract:In this study single point Incremental Forming of shape memory foam is investigated. The shape memory effect makes the foam an attractive material for the fabrication of recoverable components such as reusable dies for low pressure Forming processes. The mechanical properties of the polymer have been investigated by means of tensile testing at elevated temperature. The maximum achievable formability for this material for single point Incremental Forming has been characterized both at room and elevated temperature. After an explorative study on simple benchmark cases, heat assisted single point Incremental Forming has been used to study the possibility of manufacturing a recoverable die for custom-made orthopaedic shoe insoles.
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High-Speed Single Point Incremental Forming of an Automotive Aluminium Alloy
Key Engineering Materials, 2014Co-Authors: Hans Vanhove, Amirahmad Mohammadi, Yansong Guo, Joost DuflouAbstract:Incremental Sheet Forming processes have been characterized by their limited Forming speed and accompanying lengthy production time. ISF has therefore been considered a process category suitable for small batch sizes or discrete part production only. The potential for greatly increasing the Forming speed of Incremental Forming processes is studied here by means of axisymmetric Incremental Forming on a lathe. As an aluminium alloy commonly used in automotive applications, AA5182-O, is of interest for Incremental Forming at increased speed. In this paper the influence of an increasing feed rate on Forming forces, temperature and formability is analyzed.
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An experimental study of twist phenomena in single point Incremental Forming
International Journal of Material Forming, 2010Co-Authors: Hans Vanhove, Johan Verbert, Ioannis Vasilakos, Joost DuflouAbstract:Knowledge of the twist, induced during Single Point Incremental Forming is of importance for understanding asymmetric behaviour when using unidirectional toolpaths. In order to correctly position cut-outs and pre-formed features in the undeformed sheets, insight in the magnitude and direction of the induced twist during Incremental Forming is required. The resulting twist direction, reported by different research groups in both single and two point Incremental Forming, typically corresponds to the toolpath direction as a result of the friction between tool and work piece when using a unidirectional toolpath. However a twist in opposite direction can be observed when processing parts with high drawing angles. Detailed analysis of twist phenomena provides insight in the Forming mechanics of single point Incremental Forming. The purpose of this paper is to study the occurrence of twist by means of strain measurements and document its influence on the thickness distribution in parts characterised by stiff semi-vertical rib features.
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Experimental study on force measurements for single point Incremental Forming
Journal of Materials Processing Technology, 2007Co-Authors: Joost Duflou, Yasemin Tunckol, Alexander Szekeres, Paul VanherckAbstract:Abstract An experimental platform capable of measuring forces in process during an Incremental Forming procedure is described and some of the earliest measurements of forces in Incremental Forming with the changes induced on the measured load are reported. Using a table type force dynamometer with Incremental Forming fixture mounted on top, three components of force were measured throughout the Forming process. They were found to vary as the parts were made. The reported experimental test program was mainly focused on the influence of four different process parameters on the Forming forces: the vertical step size between consecutive contours, the diameter of the tool, the steepness of the parts’ wall and the thickness of the sheet metal being formed. The effect of lubrication and the geometry of the test part in the Incremental Forming process were investigated by a set of initial experiments. Part failure prediction based on the shape of the force curve is explained. For the tested materials, analytical results demonstrating the relationship between the respective process parameters and the induced forces are presented in this paper.
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Finite element modeling of Incremental Forming of aluminium sheets
Advanced Materials Research, 2005Co-Authors: Albert Van Bael, Joost Duflou, Alexander Szekeres, Paul Van Houtte, Christophe Henrard, Anne HabrakenAbstract:Incremental Forming is an innovative and flexible sheet metal Forming technology for small batch production and prototyping, which does not require any dedicated die or punch to form a complex shape. This paper investigates the process of single point Incremental Forming of an aluminum cone with a 50-degree wall angle both experimentally and numerically. Finite element models are established to simulate the process. The output of the simulation is given in terms of final geometry, the thickness distribution of the product, the strain history and distribution during the deformation as well as the reaction forces. Comparison between the simulation results and the experimental data is made.
Rajiv Malhotra - One of the best experts on this subject based on the ideXlab platform.
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Preliminary investigations on Double Sided Incremental Forming of thermoplastics
Manufacturing Letters, 2016Co-Authors: Mohammad Ali Davarpanah, Zixuan Zhang, Jian Cao, Shalu Bansal, Rajiv MalhotraAbstract:Abstract Single Point Incremental Forming (SPIF) of polymers has gained significant attention due to the high material formability, absence of external heating of the polymer, and the use of part-shape-independent tooling. Despite the advantages of Double Sided Incremental Forming (DSIF) of metals, polymer DSIF has not yet been explored. This study examines DSIF of a PVC polymer. Forming forces, formability and void structure of the formed polymer in SPIF and DSIF are compared. Significant advantages of polymer DSIF over SPIF are observed including greater formability, reduced void growth in the material and reduced sheet bending outside the desired Forming region.
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a mixed double sided Incremental Forming toolpath strategy for improved geometric accuracy
Journal of Manufacturing Science and Engineering-transactions of The Asme, 2015Co-Authors: Zixuan Zhang, Huaqing Ren, Newell Moser, Jacob Smith, Ebot Ndipagbor, Rajiv Malhotra, Cedric Z Xia, Kornel F Ehmann, Jian CaoAbstract:Double-sided Incremental Forming (DSIF) is a relatively new dieless Forming process which uses two hemispherical ended tools, one on each side of the sheet, moving along a predefined trajectory to locally deform a peripherally clamped sheet of metal. DSIF provides greater process flexibility, higher formability, and eliminates the tooling cost when compared to conventional sheet Forming processes. While DSIF provides much improved geometric accuracy compared to other Incremental Forming processes, current toolpath planning strategies suffer from long Forming times. A novel mixed double-sided Incremental Forming (MDSIF) toolpath strategy is proposed in the present study. It simultaneously reduces the total Forming time by half while preserving the best currently achievable geometric accuracy. The effect of the Forming parameters, i.e., of the Incremental depth and of tool positioning on the geometric accuracy of the parts formed with MDSIF was investigated and compared to those formed by traditional DSIF strategies.
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Experimental Study of Failure Modes and Scaling Effects in Micro-Incremental Forming
Journal of Micro and Nano-Manufacturing, 2013Co-Authors: Michael Beltran, Rajiv Malhotra, Anirban Bhattacharya, A. J. Nelson, N. V. Reddy, Jian CaoAbstract:Incremental Forming (IF) is a relatively new technique that uses a simple hemispherical ended tool moving along a predefined three-dimensional toolpath to deform a sheet of metal into the desired shape. The greater process flexibility and higher formability in IF have resulted in greater academic and industrial interest in this process as it can successfully produce ultrathin parts beyond the Forming limit seen in conventional stamping and the process does not require any geometry-specific tooling. Another emerging paradigm in manufacturing has been the increasing application of Forming in micromanufacturing. The above stated process characteristics of IF make it an ideal candidate for being incorporated into the micromanufacturing paradigm. This work investigates micro-IF to examine how forces and occurrence of sheet failure change when the geometric dimensions of Incremental Forming are scaled down. The development of a highly repeatable micro-IF experimental setup is described and experiments are performed to show that a previously unknown buckling mode of deformation exists in micro-Incremental Forming, that is linked to the material microstructure. The analysis provides guidelines for the design and understanding of the micro-Incremental Forming process.
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automatic 3d spiral toolpath generation for single point Incremental Forming
Journal of Manufacturing Science and Engineering-transactions of The Asme, 2010Co-Authors: Rajiv Malhotra, N. V. Reddy, Jian CaoAbstract:Incremental Forming (IF) of sheet metal is emerging as a useful flexible manufacturing process for Forming customized shapes, some of which may not be formable using conventional techniques due to limitations of tooling or Forming limit. In IF, the toolpath has a significant impact on the geometric accuracy, surface finish, and Forming time of the formed component. Toolpath generation techniques used until date are based on commercial CAM packages (Skjoedt et al., 2007, "Creating 3D Spiral Tool Paths for Single Point Incremental Forming," Key Eng. Mater., 344, pp. 583―590; Verbert et al., 2007, "Feature Based Approach for Increasing the Accuracy of the SPIF Process," Key Eng. Mater., 344, pp. 527―534) and do not allow the generation of 3D spiral toolpaths for freeform components with constraints on both surface finish and geometric accuracy while simultaneously minimizing Forming time. This work exploits the similarities between Incremental Forming and layered manufacturing to develop a methodology for automatic generation of 3D spiral single point Incremental Forming toolpaths for Forming symmetric and asymmetric components, considering specified constraints on desired geometric accuracy and maximum specified scallop height while reducing the Forming time. To test the developed methodology, the scallop heights of components formed using the developed methodology are measured and compared with the maximum permissible scallop heights specified. Furthermore, the geometric accuracy and Forming time of the components formed using the developed methodology and by the toolpaths generated using commercial CAM software are compared. It is shown that the toolpaths generated using the developed methodology form components with better or similar geometric accuracy as compared with that generated by commercial CAM packages and with scallop heights lesser than the maximum permissible scallop height specified by the user. At the same time, the developed methodology also reduces the Forming time as compared with commercial CAM toolpaths. This methodology can handle symmetric as well as asymmetric shapes and is a critical step toward automation of the toolpath generation for Incremental Forming.
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Fracture-Based Formability Prediction in Incremental Forming
ASME 2010 International Manufacturing Science and Engineering Conference Volume 1, 2010Co-Authors: Rajiv Malhotra, Liang Xue, Jian CaoAbstract:In recent years considerable research has been done in Incremental Forming due to its greater process flexibility and higher Forming limits. In Incremental Forming the formability depends to a great extent on the toolpath via the Incremental depth being used. A lack of fracture models to accurately predict failure in this process has hampered the utilization of Incremental Forming as an industrial level Forming process. This paper deals with the use of a new fracture model in which both the effects of hydrostatic pressure and shear on damage are incorporated to accurately predict fracture in Single Point Incremental Forming.Copyright © 2010 by ASME
Jian Cao - One of the best experts on this subject based on the ideXlab platform.
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Preliminary investigations on Double Sided Incremental Forming of thermoplastics
Manufacturing Letters, 2016Co-Authors: Mohammad Ali Davarpanah, Zixuan Zhang, Jian Cao, Shalu Bansal, Rajiv MalhotraAbstract:Abstract Single Point Incremental Forming (SPIF) of polymers has gained significant attention due to the high material formability, absence of external heating of the polymer, and the use of part-shape-independent tooling. Despite the advantages of Double Sided Incremental Forming (DSIF) of metals, polymer DSIF has not yet been explored. This study examines DSIF of a PVC polymer. Forming forces, formability and void structure of the formed polymer in SPIF and DSIF are compared. Significant advantages of polymer DSIF over SPIF are observed including greater formability, reduced void growth in the material and reduced sheet bending outside the desired Forming region.
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a mixed double sided Incremental Forming toolpath strategy for improved geometric accuracy
Journal of Manufacturing Science and Engineering-transactions of The Asme, 2015Co-Authors: Zixuan Zhang, Huaqing Ren, Newell Moser, Jacob Smith, Ebot Ndipagbor, Rajiv Malhotra, Cedric Z Xia, Kornel F Ehmann, Jian CaoAbstract:Double-sided Incremental Forming (DSIF) is a relatively new dieless Forming process which uses two hemispherical ended tools, one on each side of the sheet, moving along a predefined trajectory to locally deform a peripherally clamped sheet of metal. DSIF provides greater process flexibility, higher formability, and eliminates the tooling cost when compared to conventional sheet Forming processes. While DSIF provides much improved geometric accuracy compared to other Incremental Forming processes, current toolpath planning strategies suffer from long Forming times. A novel mixed double-sided Incremental Forming (MDSIF) toolpath strategy is proposed in the present study. It simultaneously reduces the total Forming time by half while preserving the best currently achievable geometric accuracy. The effect of the Forming parameters, i.e., of the Incremental depth and of tool positioning on the geometric accuracy of the parts formed with MDSIF was investigated and compared to those formed by traditional DSIF strategies.
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Experimental Study of Failure Modes and Scaling Effects in Micro-Incremental Forming
Journal of Micro and Nano-Manufacturing, 2013Co-Authors: Michael Beltran, Rajiv Malhotra, Anirban Bhattacharya, A. J. Nelson, N. V. Reddy, Jian CaoAbstract:Incremental Forming (IF) is a relatively new technique that uses a simple hemispherical ended tool moving along a predefined three-dimensional toolpath to deform a sheet of metal into the desired shape. The greater process flexibility and higher formability in IF have resulted in greater academic and industrial interest in this process as it can successfully produce ultrathin parts beyond the Forming limit seen in conventional stamping and the process does not require any geometry-specific tooling. Another emerging paradigm in manufacturing has been the increasing application of Forming in micromanufacturing. The above stated process characteristics of IF make it an ideal candidate for being incorporated into the micromanufacturing paradigm. This work investigates micro-IF to examine how forces and occurrence of sheet failure change when the geometric dimensions of Incremental Forming are scaled down. The development of a highly repeatable micro-IF experimental setup is described and experiments are performed to show that a previously unknown buckling mode of deformation exists in micro-Incremental Forming, that is linked to the material microstructure. The analysis provides guidelines for the design and understanding of the micro-Incremental Forming process.
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automatic 3d spiral toolpath generation for single point Incremental Forming
Journal of Manufacturing Science and Engineering-transactions of The Asme, 2010Co-Authors: Rajiv Malhotra, N. V. Reddy, Jian CaoAbstract:Incremental Forming (IF) of sheet metal is emerging as a useful flexible manufacturing process for Forming customized shapes, some of which may not be formable using conventional techniques due to limitations of tooling or Forming limit. In IF, the toolpath has a significant impact on the geometric accuracy, surface finish, and Forming time of the formed component. Toolpath generation techniques used until date are based on commercial CAM packages (Skjoedt et al., 2007, "Creating 3D Spiral Tool Paths for Single Point Incremental Forming," Key Eng. Mater., 344, pp. 583―590; Verbert et al., 2007, "Feature Based Approach for Increasing the Accuracy of the SPIF Process," Key Eng. Mater., 344, pp. 527―534) and do not allow the generation of 3D spiral toolpaths for freeform components with constraints on both surface finish and geometric accuracy while simultaneously minimizing Forming time. This work exploits the similarities between Incremental Forming and layered manufacturing to develop a methodology for automatic generation of 3D spiral single point Incremental Forming toolpaths for Forming symmetric and asymmetric components, considering specified constraints on desired geometric accuracy and maximum specified scallop height while reducing the Forming time. To test the developed methodology, the scallop heights of components formed using the developed methodology are measured and compared with the maximum permissible scallop heights specified. Furthermore, the geometric accuracy and Forming time of the components formed using the developed methodology and by the toolpaths generated using commercial CAM software are compared. It is shown that the toolpaths generated using the developed methodology form components with better or similar geometric accuracy as compared with that generated by commercial CAM packages and with scallop heights lesser than the maximum permissible scallop height specified by the user. At the same time, the developed methodology also reduces the Forming time as compared with commercial CAM toolpaths. This methodology can handle symmetric as well as asymmetric shapes and is a critical step toward automation of the toolpath generation for Incremental Forming.
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Fracture-Based Formability Prediction in Incremental Forming
ASME 2010 International Manufacturing Science and Engineering Conference Volume 1, 2010Co-Authors: Rajiv Malhotra, Liang Xue, Jian CaoAbstract:In recent years considerable research has been done in Incremental Forming due to its greater process flexibility and higher Forming limits. In Incremental Forming the formability depends to a great extent on the toolpath via the Incremental depth being used. A lack of fracture models to accurately predict failure in this process has hampered the utilization of Incremental Forming as an industrial level Forming process. This paper deals with the use of a new fracture model in which both the effects of hydrostatic pressure and shear on damage are incorporated to accurately predict fracture in Single Point Incremental Forming.Copyright © 2010 by ASME
N. V. Reddy - One of the best experts on this subject based on the ideXlab platform.
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Importance of Feature Sequencing in Incremental Forming
Volume 1: Processing, 2015Co-Authors: R. Lingam, C. L. Harikrishnan, I. V. M. Kishan, N. V. ReddyAbstract:Incremental Sheet Forming (ISF) is a flexible Forming process suitable for low volume production of sheet metal components. Single Point Incremental Forming (SPIF), which has only one tool Forming the geometry, is the simplest variant of Incremental Forming. Bending of sheet between the component opening and the fixed boundary is unavoidable in SPIF due to the absence of support/backup. Double Sided Incremental Forming (DSIF) has two tools which can be used interchangeably for Forming and providing local support. The accuracy of parts formed using DSIF is superior to those formed using SPIF as the unwanted bending is substantially reduced by providing local support. In addition DSIF is capable of Forming components with features on both sides of the initial plane of sheet and convex and concave features without additional setup.In ISF, as the deformation progresses, the intended geometry slowly develops, this increases the stiffness of the sheet. While Forming multiple features, the Forming sequence greatly affects the way stiffness builds-up, which further affects the geometry of formed components. In the present work, an experimental investigation is carried out to demonstrate the affect of Forming sequence on the geometries and accuracy of formed component. Results presented show that the feature sequencing greatly affects the geometry and accuracy of formed components.Copyright © 2015 by ASME
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Twist in Single Point Incremental Forming
ASME 2012 International Manufacturing Science and Engineering Conference, 2012Co-Authors: Javed Asghar, E. Shibin, Anirban Bhattacharya, N. V. ReddyAbstract:Twist in Incremental Forming is observed in all configurations including single point Incremental Forming. In addition to tangential force, other parameters like stiffness seems to play a significant role in the twist phenomenon. Present work makes an attempt to experimentally study the twist in SPIF of conical components and compare the same with numerical predictions. Experimental and numerical results are found to be in good qualitative agreement. Further work is in progress to study the twist behavior in detail.Copyright © 2012 by ASME
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automatic 3d spiral toolpath generation for single point Incremental Forming
Journal of Manufacturing Science and Engineering-transactions of The Asme, 2010Co-Authors: Rajiv Malhotra, N. V. Reddy, Jian CaoAbstract:Incremental Forming (IF) of sheet metal is emerging as a useful flexible manufacturing process for Forming customized shapes, some of which may not be formable using conventional techniques due to limitations of tooling or Forming limit. In IF, the toolpath has a significant impact on the geometric accuracy, surface finish, and Forming time of the formed component. Toolpath generation techniques used until date are based on commercial CAM packages (Skjoedt et al., 2007, "Creating 3D Spiral Tool Paths for Single Point Incremental Forming," Key Eng. Mater., 344, pp. 583―590; Verbert et al., 2007, "Feature Based Approach for Increasing the Accuracy of the SPIF Process," Key Eng. Mater., 344, pp. 527―534) and do not allow the generation of 3D spiral toolpaths for freeform components with constraints on both surface finish and geometric accuracy while simultaneously minimizing Forming time. This work exploits the similarities between Incremental Forming and layered manufacturing to develop a methodology for automatic generation of 3D spiral single point Incremental Forming toolpaths for Forming symmetric and asymmetric components, considering specified constraints on desired geometric accuracy and maximum specified scallop height while reducing the Forming time. To test the developed methodology, the scallop heights of components formed using the developed methodology are measured and compared with the maximum permissible scallop heights specified. Furthermore, the geometric accuracy and Forming time of the components formed using the developed methodology and by the toolpaths generated using commercial CAM software are compared. It is shown that the toolpaths generated using the developed methodology form components with better or similar geometric accuracy as compared with that generated by commercial CAM packages and with scallop heights lesser than the maximum permissible scallop height specified by the user. At the same time, the developed methodology also reduces the Forming time as compared with commercial CAM toolpaths. This methodology can handle symmetric as well as asymmetric shapes and is a critical step toward automation of the toolpath generation for Incremental Forming.
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Experimental Study on a New Method of Double Side Incremental Forming
ASME 2008 International Manufacturing Science and Engineering Conference Volume 1, 2008Co-Authors: Yongjun Wang, Jian Cao, Ying Huang, N. V. ReddyAbstract:This paper presents a new configuration for sheet metal Incremental Forming using DSIF (Double Sided Incremental Forming) to overcome the limitation of single point Incremental Forming (SPIF). The new process can produce geometrical features on either side of the initial plane of the sheet without changing setup. A component having such challenging features is selected to demonstrate the capabilities of the proposed method and a contour tool path is generated using UniGraphics (UG) surface machining module and formed by mounting the new setup on a CNC milling machine. The final formed shape was scanned and compared to the designed profile. In addition, two more components having cylindrical and spherical geometries are formed to study the effect of geometry on the accuracy of the component that can be produced by using the proposed method. A simple analysis model has been developed to explain the effect of squeezing and stretching to the part elongation during the DSIF process.Copyright © 2008 by ASME
Hu Zhu - One of the best experts on this subject based on the ideXlab platform.
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Research on point-pressing based double-sided CNC Incremental Forming
Journal of Mechanical Science and Technology, 2019Co-Authors: Hu Zhu, Dongxuan Xiao, Jaeguan KangAbstract:For the problem of the sheet distortion caused by the force of the two extrusion Forming tools on the sheet in the double-sided CNC Incremental Forming, a point-pressing based double-sided CNC Incremental Forming was proposed in which the consecutive-extrusion of the extrusion Forming tool on the sheet was replaced by the point-pressing. A point-pressing based double-sided CNC Incremental Forming toolpath generation algorithm based on the consecutive-extrusion based double-sided CNC Incremental Forming toolpath was presented. The double-sided CNC Incremental Forming processes based on the point-pressing and consecutive-extrusion was simulated by using the ANSYS/LS-DYNA software and the actual Forming experiment. The numerical simulation results show that the double-sided CNC Incremental Forming based on the point-pressing compared with the process based on the consecutive-extrusion can acquire less circumferential displacement, less distortion, more evenly distributed average equivalent strain and less mutagenicity. It can be seen from the actual Forming experiment that the sheet metal part formed by the point-pressing method has better geometric anastomosis with the design model than that formed by the consecutive-extrusion method.
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Research on the CNC Incremental Forming based on the unequal feed speed
The International Journal of Advanced Manufacturing Technology, 2018Co-Authors: Hu Zhu, Hepo Wang, Dong Won JungAbstract:Aiming at the problems of the CNC Incremental Forming based on the constant feed speed, an algorithm for the unequal feed speed determining that is adaptive to the surface features and a method for the CNC Incremental Forming based on the unequal feed speed were proposed. The volume change rate threshold was calculated based on the volume average change rate of the sheet metal involved in the Forming and the volume change rate between two adjacent path points. And then, the feed speed between the adjacent path points was determined by the threshold value. Thus, for the sheet metal parts with the complex shape, the different feed speeds were assigned to the regions with different Forming angles according to the shape features of the sheet metal parts so that the formability and the Forming quality were improved under the same Forming efficiency. At the same time, the finite element analysis method for the CNC Incremental Forming based on the unequal feed speed was given out by calculating the time node points of the Forming tool head at each path point, according to the distance between the two adjacent path points and the determined feed speed. The numerical simulation analysis and the Forming experimental results show that the CNC Incremental Forming based on the unequal feed speed is better than the CNC Incremental Forming based on the constant feed speed, which can improve the profile accuracy of the sheet metal parts, the surface roughness, and formability that under the same Forming efficiency.
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The effect of the extrusion direction on the Incremental Forming quality considering tool deformation
The International Journal of Advanced Manufacturing Technology, 2018Co-Authors: Hu Zhu, Fuchen Han, Yibo LiuAbstract:The existing CNC (Computer numerical control) Incremental Forming mostly adopt the 3-axis CNC Incremental Forming method whose extrusion direction is always parallel to the Z-axis. However, with the increasing demand for the Forming of the complex shape sheet metal part, the researches on the 5-axis CNC Incremental Forming technology are on the rise, and one of the most important problems in the researches is the reasonable choice of the extrusion direction. To this end, the influence of the extrusion direction on the Forming quality was studied. In the actual CNC Incremental Forming, the deformation of the extrusion tool under the action of the Forming force would directly affect the Forming accuracy. Therefore, the extrusion tool was regarded as a deformable body and the deformation of the extrusion tool was fully considered in this study, which occurred under the action of the Forming force. The numerical simulation and actual Forming experiments of the 5-axis CNC Incremental Forming process were carried out to analyze the effects of the different extrusion directions on the Forming quality.
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Generation of Technological Model for Multi-Stage Incremental Forming
Applied Mechanics and Materials, 2014Co-Authors: Hu Zhu, Wei ZhangAbstract:In order to the difficult Forming sheet metal part with the vertical wall to be formed by the multi-stage Incremental Forming, the algorithm of the recognition and modify the difficult Forming surface of the vertical wall is studied. The method for generation of the technological model for multi-stage Incremental Forming is also presented. The case studies show that the algorithm is feasibility.
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Research on the Simulation for Sheet Metal NC Incremental Forming
Applied Mechanics and Materials, 2013Co-Authors: Hu ZhuAbstract:In the sheet metal CNC Incremental Forming, the Forming is realized by its tool's step by step and point by point extrusion movements along the pre-programmed contour tool path in the outline of the sheet part. Therefore, the correctness of the Forming path used to control the tool's movement has a magnificent impact on the Forming quality. And a NC Incremental Forming process simulation method which is used to verify the correctness is showed in this paper. Meanwhile the simulation software system is developed by using VC++ and OpenGL. The case study shows that the software system can be used in the verification of NC Incremental Forming path and the motion analysis of Forming tool, and the software system runs steadily and reliably.
