Manufacture of absorber fins for solar collector using incremental sheet forming

Schreiber, Rafael Gustavo; Schaeffer, Lírio

doi:10.1016/j.jmrt.2018.07.018

Cited by 19 publications

(9 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Incremental Sheet Forming Methodsmentioning

confidence: 99%

“…SPIF and TPIF involve the gradual forming of sheet metal using rotating contour tools. Due to the penetration of the tool producing a stretch process in accordance with the assumed trajectory (forming strategy) of the tool movements, the deformed material takes on a final shape through the accumulation of localized plastic deformation of the sheet, in which a hemispherical-head tool controlled by a computer program is used to form the metal [ 36 , 37 , 38 ]. Incremental forming is classified into two main varieties: Negative ( Figure 2 a), in which there is an additional element of the tool in the form of a template or a pin supporting the highest area of the detail being formed; forming takes place by appropriate mapping of the template geometry, by “arranging” the sheet on it, with a tool performing programmed movements, Positive ( Figure 2 b), in which the component is formed by the movement of the tool in accordance with the tool trajectory without the supporting template.…”

Section: Incremental Sheet Forming Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Single-Point Incremental Forming of Titanium and Titanium Alloy Sheets

et al. 2021

View full text Add to dashboard Cite

Incremental sheet forming of titanium and its alloys has a significant role in modern manufacturing techniques because it allows for the production of high-quality products with complex shapes at low production costs. Stamping processes are a major contributor to plastic working techniques in industries such as automotive, aerospace and medicine. This article reviews the development of the single-point incremental forming (SPIF) technique in titanium and its alloys. Problems of a tribological and microstructural nature that make it difficult to obtain components with the desired geometric and shape accuracy are discussed. Great emphasis is placed on current trends in SPIF of difficult-to-form α-, α + β- and β-type titanium alloys. Potential uses of SPIF for forming products in various industries are also indicated, with a particular focus on medical applications. The conclusions of the review provide a structured guideline for scientists and practitioners working on incremental forming of titanium and titanium alloy sheets. One of the ways to increase the formability and minimize the springback of titanium alloys is to treat them at elevated temperatures. The main approaches developed for introducing temperature into a workpiece are friction heating, electrical heating and laser heating. The selection of an appropriate lubricant is a key aspect of the forming process of titanium and its alloys, which exhibit unfavorable tribological properties such as high adhesion and a tendency to adhesive wear. A review of the literature showed that there are insufficient investigations into the synergistic effect of rotational speed and tool rotation direction on the surface roughness of workpieces.

show abstract

Section: Incremental Sheet Forming Methodsmentioning

confidence: 99%

Section: Incremental Sheet Forming Methodsmentioning

confidence: 99%

Single-Point Incremental Forming of Titanium and Titanium Alloy Sheets

et al. 2021

View full text Add to dashboard Cite

show abstract

“…A different type of application of SPIF is found by researchers in the forming of absorber fins for solar collectors (Schreiber & Schaeffer, 2019) and especially sandwich panels/sheets, which are mainly used in major industries due to their favorable properties as lightweight structures, better dent resistance, and high vibration damping characteristics (Jackson et al, 2008;J. Liu et al, 2013).…”

Section: Other Fieldsmentioning

confidence: 99%

Formability of Aluminum Alloys During Single Point Incremental Forming

Bishnoi

Chandna

2022

International Journal of Manufacturing, Materials, and Mechanical Engineering

View full text Add to dashboard Cite

Single point incremental sheet metal forming has passed through a period of ample improvement with developing responsiveness from research societies and industries globally. The process has expressively spared the practice of using costly dies, which makes it an appropriate process for manufacturing prototypes and small batch production. It also discovers easiness in fabricating components of timeworn equipment. Additionally, in recent years, aluminum alloys become the most commonly used materials in the automotive, aeronautics, and transportation industries for their structural and other applications. The effect of various process parameters on the formability of Single Point Incremental Forming of aluminum alloys has been critically surveyed. Ultimately, this article also debated the dares associated with the Single Point Incremental Forming process and recommended some correlated research regions which probably charm significant research considerations in the future.

show abstract

“…Compared to conventional sheet formation processes, in SPIF the necessary conformation force is reduced due to localized and successive deformations that occur during the process [5]. Nevertheless, it is fundamental to be able to predict the acting forces during the process to select the equipment that will be used, such as a CNC milling machine [6][7][8], a CNC lathe [9][10][11], a robotic arm [12][13][14], or a machine designed for this purpose [15,16].…”

Section: Introductionmentioning

confidence: 99%

Predicting maximum force in SPIF for different materials

et al. 2022

Self Cite

View full text Add to dashboard Cite

Knowing the importance of predicting acting forces during the formation process, our research has conducted 27 Single Point Incremental Forming (SPIF) experiments in hyperboloid format, followed by Finite Element Method (FEM) simulations and regression equations were determined to estimate the maximum axial force in the process. ANOVA analysis of variance was used to determine the significance of material parameters in the maximum axial force response. A multiple linear regression model was constructed to estimate the maximum axial force in the SPIF process. After the experiments, we were able to identify that the maximum axial force increases according to an increase in tool radius, sheet initial thickness, and strength coefficient values, as well as according to the decrease in the strain-hardening exponent. The FEM simulations are in agreement with the experimental values found, and the linear regression model has proven to be efficient to describe results, with R2 of 98.85% and a maximum percentage error of 11.5%.

show abstract

Manufacture of absorber fins for solar collector using incremental sheet forming

Cited by 19 publications

References 16 publications

Single-Point Incremental Forming of Titanium and Titanium Alloy Sheets

Single-Point Incremental Forming of Titanium and Titanium Alloy Sheets

Formability of Aluminum Alloys During Single Point Incremental Forming

Predicting maximum force in SPIF for different materials

Contact Info

Product

Resources

About