Force Measurements for Single Point Incremental Forming: An Experimental Study

Duflou, Joost; Szekeres, Alexander; Vanherck, P.

doi:10.4028/0-87849-972-5.441

Cited by 32 publications

(35 citation statements)

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“…Thus, estimation of the maximum forces is an important issue, not for design requirements, but for other significant reasons. These reasons include preserving the tooling machine, guaranteeing the safe usage of hardware, ensuring the quality of the produced parts [13], determining the stress levels and therefore, plastic strains controlling the structure of the component.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation of Forming Forces in Frictional Stir Incremental Forming of Aluminum Alloy AA6061-T6

Baharudin

Azpen

Sulaima

et al. 2017

Metals

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Abstract:The incremental sheet forming (ISF) process is an emerging flexible sheet-forming process, which is adequate for the manufacturing of unique or small-volume batches. Single-point incremental forming (SPIF) is the original technology of incremental sheet-forming processes. In this article, frictional stir-assisted SPIF was used to deform AA6061-T6 aluminum alloy. Experimental tests were conducted to measure the forming forces during this process for the concerned lightweight material. The influence of process parameters was investigated, which included tool rotation speed, feed rate, step size and tool diameter on the produced forming forces. A Taguchi technique for the design of experiment (DOE) and the varying wall angle conical frustum (VWACF) test was employed in this study. The results show that the rotation spindle speed was the most dominant parameter that affects the forming forces, followed by the step size, feed rate and tool diameter. In addition, the interaction between the feed rate and step size has a notable impact on the values of the forming forces.

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Section: Introductionmentioning

confidence: 99%

“…Many studies carried out aimed to explain the effect of different parameters on the process forces [13,[19][20][21][22][23][24][25]. These studies demonstrated that SPIF forces have proportional relationships with the tool size, step size, sheet thickness, and forming wall angle [26].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Forming Forces in Frictional Stir Incremental Forming of Aluminum Alloy AA6061-T6

Baharudin

Azpen

Sulaima

et al. 2017

Metals

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“…During the incremental forming process, the sheet blank is fixed in sheet holder. The tool follows a certain tool path and progressively deforms the sheet [1]. Because incremental forming is a dieless process, it is perfectly suited for prototyping, medical shapes and small volume production.…”

Section: Introductionmentioning

confidence: 99%

“…Before the incremental forming process of stainless 304L steel sheets are used is really industrialized, studies are necessary [2][3][4][5][6]. The ISF process indeed suffers from a big slowness, geometrical inaccuracy, a not homogeneous thickness distribution which reduces its industrial suitability [1].…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study on optimization of the single point incremental forming of AINSI 304L stainless steel sheet

Saidi

Giraud-Moreau

Cherouat

et al. 2017

J. Phys.: Conf. Ser.

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Abstract. AINSI 304L stainless steel sheets are commonly formed into a variety of shapes for applications in the industrial, architectural, transportation and automobile fields, it's also used for manufacturing of denture base. In the field of dentistry, there is a need for personalized devises that are custom made for the patient. The single point incremental forming process is highly promising in this area for manufacturing of denture base.The single point incremental forming process (ISF) is an emerging process based on the use of a spherical tool, which is moved along CNC controlled tool path. One of the major advantages of this process is the ability to program several punch trajectories on the same machine in order to obtain different shapes. Several applications of this process exist in the medical field for the manufacturing of personalized titanium prosthesis (cranial plate, knee prosthesis…) due to the need of product customization to each patient.The objective of this paper is to study the incremental forming of AISI 304L stainless steel sheets for future applications in the dentistry field. During the incremental forming process, considerable forces can occur. The control of the forming force is particularly important to ensure the safe use of the CNC milling machine and preserve the tooling and machinery.In this paper, the effect of four different process parameters on the maximum force is studied. The proposed approach consists in using an experimental design based on experimental results. An analysis of variance was conducted with ANOVA to find the input parameters allowing to minimize the maximum forming force. A numerical simulation of the incremental forming process is performed with the optimal input process parameters. Numerical results are compared with the experimental ones.

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“…IF is a process where common and simple tools mounted on CNC machines, instead of complex die sets, are used to deform locally a workpiece. In recent years many studies have been done on IF and many are still in progress with the aim of finding both the most affecting process parameters and the suitable machines and working centres to run experiments and production (Park & Kim, 2002Jeswiet et al, 2005aJeswiet et al, , 2005bDuflou et al, 2005aDuflou et al, , 2005bHirt et al, 2005;He et al, 2005aHe et al, , 2005bAmbrogio et al, 2005;Bambach et al, 2005). Unlike the standard metal forming process, fast production changes are possible thanks to the very simple IF machine configuration.…”

Section: Introductionmentioning

confidence: 99%