Experimental and numerical investigation on development of new incremental forming process

Grosman, F.; Madej, Łukasz; Ziółkiewicz, S.; Nowak, J.

doi:10.1016/j.jmatprotec.2012.06.014

Cited by 29 publications

(11 citation statements)

References 4 publications

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“…[3] The main advantage of incremental forming is a possibility of lowering expected press loads and of increasing material deformation limits. Accordingly, based on the experience gained during the previous author's work, [13] a detailed analysis of material behavior during the proposed innovative process of incremental forming of integral elements dedicated to the aerospace industry was presented within the article.…”

Section: Incremental Formingmentioning

confidence: 99%

“…Based on the experience obtained during previous experiments with the orbital press enriched by a specific tooling, [13][14][15] a new, unique laboratory device for bulk incremental forming has been developed, constructed, and mounted in the working space of a hydraulic press at the Faculty of Material Science and Metallurgy of the Silesian University of Technology. Schematic illustration of the press concept is shown in Figure 4, while details of the assembled experimental setup are presented in Figure 5.…”

Section: Incremental Formingmentioning

confidence: 99%

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Numerical and Experimental Investigation of the Innovatory Incremental-Forming Process Dedicated to the Aerospace Industry

Szyndler

Grosman

Tkocz

et al. 2016

Metall Mater Trans A

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The main goal of this work is development of the incremental-forming (IF) process for manufacturing integral elements applicable to the aerospace industry. A description of the proposed incremental-forming concept based on division of large die into a series of small anvils pressed into the material by a moving roll is presented within this article. A unique laboratory device has been developed to investigate the effects of process parameters on the material flow and the press loads. Additionally, a developed numerical model of this process with specific boundary conditions is also presented and validated to prove its predictive capabilities. However, main attention is placed on development of the process window. Thus, detailed investigation of the process parameters that can influence material behavior during plastic deformation, namely, roll size and roll frequency, is presented. Proper understanding of the material flow to improve the IF process, as well as press prototype, and to increase its technological readiness is the goal of this article. Results in the form of, e.g., strain distribution or recorded forging loads are presented and discussed.

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Section: Incremental Formingmentioning

confidence: 99%

Section: Incremental Formingmentioning

confidence: 99%

Numerical and Experimental Investigation of the Innovatory Incremental-Forming Process Dedicated to the Aerospace Industry

Szyndler

Grosman

Tkocz

et al. 2016

Metall Mater Trans A

Self Cite

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“…These processes are being investigated due to their advantages, widely discussed in literature by different authors [1][2][3][4][5][6]. The incremental method is frequently used since it offers load reductions and workability increments in comparison with other processes.…”

Section: Introductionmentioning

confidence: 99%

Study of the Tool Geometry Influence in Indentation for the Analysis and Validation of the New Modular Upper Bound Technique

et al. 2016

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Focusing on incremental bulk metal forming processes, the indentation process is gaining interest as a fundamental part of these kinds of processes. This paper presents the analysis of the pressure obtained in indentation under the influence of different punch geometries. To this end, an innovative Upper Bound Theorem (UBT) based solution is introduced. This new solution can be easily applied to estimate the necessary force that guarantees plastic deformation by an indentation process. In this work, we propose an accurate analytical approach to analyse indentation under different punches. The new Modular Upper Bound (MUB) method presents a simpler and faster application. Additionally, its complexity is not considerably increased by the addition of more Triangular Rigid Zones. In addition, a two-dimensional indentation model is designed and implemented using the Finite Element Method (FEM). The comparison of the two methods applied to the indentation process analysed-the new Modular Upper Bound technique and the Finite Element Method-reveal close similarities, the new Modular Upper Bound being more computationally efficient.

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“…Anders et al employed a dimensional analysis with the concept of physical similarity to derive dimensionless groups, which characterize the essential physics of the ski e ect in rolling applications [14]. Grosman et al used commercial Finite Element (FE) software to evaluate the rolling process parameters and analyze the character of material deformation, and compared them with experimental analyses performed on the developed prototype press [15].…”

Section: Introductionmentioning

confidence: 99%

Improvement of TFT-LCD's polarizer plate bubble problem using a preheating-process

Lin

Huang

et al. 2016

Scientia Iranica

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In this study, improvement of the polarizer plate bubble in the thin lm transistor liquid crystal display process, especially where the polarizer plate is attached to the black matrix area at the end of the glass substrate, is presented. This study proposed temperature control functions during the attaching process using the preheating operations of pressure sensitive adhesives and a pre-existing warp polarizer plate. The polarizer plate is softened evenly, and, then, the bubbles can be discharged smoothly in the attaching process. Three main control factors are used in the polarizer plate attachment process, using an experimental design method, to determine the best combination of parameters. By applying optimal parameters in the experiments, bubble width can be decreased by 60.49%, compared with that of the previous process.

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Experimental and numerical investigation on development of new incremental forming process

Cited by 29 publications

References 4 publications

Numerical and Experimental Investigation of the Innovatory Incremental-Forming Process Dedicated to the Aerospace Industry

Numerical and Experimental Investigation of the Innovatory Incremental-Forming Process Dedicated to the Aerospace Industry

Study of the Tool Geometry Influence in Indentation for the Analysis and Validation of the New Modular Upper Bound Technique

Improvement of TFT-LCD's polarizer plate bubble problem using a preheating-process

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