Integrating a New Software Tool Used for Tool Path Generation in the Numerical Simulation of Incremental Forming Processes

Nasulea, Daniel; Oancea, Gheorghe

doi:10.5545/sv-jme.2018.5475

Cited by 17 publications

(11 citation statements)

References 23 publications

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“…Furthermore, an accurate description of the forming forces is of great importance for the proper selection of the equipment to be used, since several incremental forming processes are performed with machines that are not specially dedicated to this technology. Several pieces of research were carried out using five-axes machining centers [56,[84][85][86][87] (Figure 5a); however, in recent years, the use of robot arms is increasing due to the implementation of advanced SPIF technologies such as double-sided incremental forming [88][89][90] (Figure 5b). The incremental forming process does not load these machines in the same way as the processes that these machines were originally designed for.…”

Section: Forming Forcesmentioning

confidence: 99%

Emerging Trends in Single Point Incremental Sheet Forming of Lightweight Metals

Trzepieciński

Oleksik

Pepelnjak

et al. 2021

Metals

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Lightweight materials, such as titanium alloys, magnesium alloys, and aluminium alloys, are characterised by unusual combinations of high strength, corrosion resistance, and low weight. However, some of the grades of these alloys exhibit poor formability at room temperature, which limits their application in sheet metal-forming processes. Lightweight materials are used extensively in the automobile and aerospace industries, leading to increasing demands for advanced forming technologies. This article presents a brief overview of state-of-the-art methods of incremental sheet forming (ISF) for lightweight materials with a special emphasis on the research published in 2015–2021. First, a review of the incremental forming method is provided. Next, the effect of the process conditions (i.e., forming tool, forming path, forming parameters) on the surface finish of drawpieces, geometric accuracy, and process formability of the sheet metals in conventional ISF and thermally-assisted ISF variants are considered. Special attention is given to a review of the effects of contact conditions between the tool and sheet metal on material deformation. The previous publications related to emerging incremental forming technologies, i.e., laser-assisted ISF, water jet ISF, electrically-assisted ISF and ultrasonic-assisted ISF, are also reviewed. The paper seeks to guide and inspire researchers by identifying the current development trends of the valuable contributions made in the field of SPIF of lightweight metallic materials.

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Section: Forming Forcesmentioning

confidence: 99%

Emerging Trends in Single Point Incremental Sheet Forming of Lightweight Metals

Trzepieciński

Oleksik

Pepelnjak

et al. 2021

Metals

View full text Add to dashboard Cite

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“…For instance, the part codifi cation "D95H45α50Δz0.5" means a dimensional configuration with a 95 mm upper base diameter, 45 mm height, 50° wall angle and is machined with a 0.5 mm incremental step depth. The technological setup (presented in Figure 9) used for SPIF consists of the fol lowing elements [42]: a three-axis Victor Vcenter-55 CNC milling machine (VICTOR TAICHUNG, Taichung, Taiwan), a high rigidity sheet metal clamping device [2], and two forming tools with different shapes already presented in Figure 2. Both tools wer manufactured from C45 steel by turning and milling.…”

Section: Materials and Technological Setupmentioning

confidence: 99%

Achieving Accuracy Improvements for Single-Point Incremental Forming Process Using a Circumferential Hammering Tool

Nasulea

Oancea

2021

Metals

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The paper presents a novel solution for improving the accuracy of the wall area of parts manufactured by single point incremental forming. Thus, a forming tool with a special design that works according to the principle of circumferential hammering is deployed, with a direct improving effect of the forming conditions and consequently of the dimensional accuracy of the part. The research is focused on an experimental study of frustum-of-cone shapes manufactured from sheet metal blanks of DC05 deep drawing steel of 1 mm thickness. A typical customary technological setup is used for the single point incremental forming process, without any additional elements, and two forming tools, a hemispherical and a special one, which use the circumferential hammering effect. Several preliminary tests using both tools were performed in order to prove that part accuracy can be significantly improved by using the circumferential hammering tool. The research was further expanded to investigate the influence on part wall dimensional accuracy of three factors: tool spindle speed, tool feed rate and part dimensional configuration. Using a full factorial plan of experiments the results of 32 test runs were processed. All parts were machined adequately, free of any material fracturing. Based on the achieved machining accuracy of the part walls, precision mathematical models were developed for the prediction of part dimensional accuracy in those areas. The mathematical models were validated by practice, as the predicted accuracies were matched by the experimental results.

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“…To measure the strains in the incrementally formed components, Centeno et al [26] utilized ARGUS software for circle grid analysis. Nasulea and Oancea [27] has developed Tool Motion Points Generator (TMPG) software to input path for simulation in ANSYS. To improve the formability, Wang et al [28] developed a newer spiral path strategy by interpolation and translation of a generated points from Unigraphics software.…”

Section: Introductionmentioning

confidence: 99%