CAx Process Chain for Two Robots Based Incremental Sheet Metal Forming

Meier, Horst; Zhu, Jinying; Buff, B.; Laurischkat, R.

doi:10.1016/j.procir.2012.07.008

Cited by 14 publications

(9 citation statements)

References 6 publications

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“…Equipment in the ISF process provide power to move the tool along the required tool path. Researchers have used Vertical Machining Center, 91,109 Horizontal Machining Center, 50,82,99,134,150 Single robot, 20,32,44,82,116,134,140,142 Dual robots, 65,87,101 custom made ISF machine 100,143 and commercial ISF machine 63,75,132,134,135,139,160 to carry out experiments. Machining centers are general purpose machines and can be used for variety of shapes.…”

Section: Elements Of Isf Processmentioning

confidence: 99%

“…Correcting the tool path, based on force prediction using FEM and its subsequent use in MBS simulation can help in reducing the geometric error. 101 In this method of correcting the links are assumed to be rigid and joints are assumed elastic which inturn may lead to inaccuracy. It can be improved by considering both link and joint as elastic 116 and then compensating for elastic deformations.…”

Section: Performance Measures In the Isf Processmentioning

confidence: 99%

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Review of the effect of process parameters on performance measures in the incremental sheet forming process

Gohil

Modi

2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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Incremental sheet forming process has developed the interest of researchers in the field of sheet metal forming due to high formability and capability to produce prototypes of new products at low cost and minimum lead time. Research work is going on in various front to enhance the process capabilities so that it can be explored for commercial production. In this article, progress and recent development in the field of incremental forming has been reviewed and presented for the benefit of practicing engineers and industry. The effect of various process parameters on the performance of the process have been summarized in this paper. Moreover, the issues which need attention are discussed towards the conclusion of this paper.

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Section: Elements Of Isf Processmentioning

confidence: 99%

Section: Performance Measures In the Isf Processmentioning

confidence: 99%

Review of the effect of process parameters on performance measures in the incremental sheet forming process

Gohil

Modi

2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…Due to the superimposed pressure from support tool, 12.5 % increase in formability has been reported. Meier et al (2012) presented an integrated CAx (CAD, CAM, CAE) process chain (Fig. 35) for the robot-assisted incremental forming process, called as roboforming, to quickly realized the path planning and simultaneously raise the geometrical accuracy using different compensation methods.…”

Section: Double-sided Incremental Formingmentioning

confidence: 99%

“…They reported reduction of profile deviation from 1.08 to 0.2 mm, but FEA consumes about 10 h for simulation; thus, the real-time compensation is difficult to implement. Recently, DSIF machine has been designed and (Meier et al 2012) developed at Indian Institute of Technology Kanpur and many studies are in progress (Srivastsava 2010;Koganti 2011;Asghar 2012;Shibin 2012;Lingam 2012). Very recently, Northwestern University, Evanston, has also developed a DSIF machine.…”

Section: Double-sided Incremental Formingmentioning

confidence: 99%

Incremental Metal Forming Processes in Manufacturing

Reddy

Lingam

Cao

2014

Handbook of Manufacturing Engineering and Technology

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“…Currently, the challenge of this technology is the low geometric accuracy caused by the sheet springback and low stiffness of the robots. Focus in robot-based ISF is mainly on tool path optimization for geometric accuracy improvement in recent years, like the work by Meier et al [104], Storkle et al [105] and Thyssen et al [106]. air heat-assisted ISF utilized by Ji et al [112], oil heat-assisted ISF designed by Galdos et al [113] and friction heat-assisted ISF developed by Otsu et al [114].…”

Section: Isf Variantsmentioning

confidence: 99%

Investigation of control strategies for fracture prevention in the multi-point incremental sheet forming process

Wang¹

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This thesis is focused on understanding the deformation and failure mechanisms in incremental sheet forming (ISF) and on development of effective and efficient closed-loop control strategies to delay the fracture in multi-point ISF. Incremental sheet forming is a flexible and energy-efficient rapid prototyping process for production of small-batch and customized functional sheet components. The innovation of ISF is to achieve higher formability, flexibility and process control with localized plastic deformation compared with traditional sheet metal forming processes. Multi-point incremental forming (MPIF) shows higher formability and geometric accuracy than single point incremental forming (SPIF) and has attracted interest from industry currently. In the past decades, the industry application of multi-point ISF is still limited due to the limitation of formability, especially for producing parts with complex geometric features. Experimental and numerical ISF studies show that the formability in ISF can be improved by altering some critical process parameters. However, most of the proposed methodologies are either component specific or are based on trial-and-error approaches, while limited work has been published on closed-loop feedback control strategies for formability improvement in multi-point ISF. The first research objective of this thesis is the deformation mechanism and formability investigation in multi-point ISF. The aim of this study is to identify the contribution of different deformation modes and lay a foundation of developing damage model-coupled numerical simulation for fracture prediction in multi-point ISF. To this end, a full-scale three-dimensional numerical simulation with solid finite elements is developed. The deformation modes in different layers at different contact zones along different directions are investigated and discussed in detail. It is indicated that the existence of the supporting die leads to an increase of the hydrostatic pressure and the through-thethickness shear strain, and a decrease of the stress gradient in the thickness direction in the doublesided contact zone, which may lead to smaller springback and slow the damage accumulation rate in multi-point ISF. The second objective of this thesis is focused on the fracture prediction in multi-point ISF. In particular, six damage models are coded into finite element models through ABAQUS/VUMAT subroutine and a numerical comparative study is conducted for fracture prediction in multi-point ISF with a free-formed ellipsoid shape under different loading conditions. It is indicated that the Ayada model could predict the fracture location and fracture depth more accurately than others, however, it is also found that the fracture location and fracture depth cannot be accurately predicted simultaneously with the investigated damage models in this study. In addition, it can be found that Publications included in this thesis No publications included.

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CAx Process Chain for Two Robots Based Incremental Sheet Metal Forming

Cited by 14 publications

References 6 publications

Review of the effect of process parameters on performance measures in the incremental sheet forming process

Review of the effect of process parameters on performance measures in the incremental sheet forming process

Incremental Metal Forming Processes in Manufacturing

Investigation of control strategies for fracture prevention in the multi-point incremental sheet forming process

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