About the sheet metal testing by hydraulic bulging

Gagov, V.; Tomov, B.; Radev, Rossen; Yankov, Emil

doi:10.1504/ijmmp.2009.031597

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…Although these examples are conspicuous because they have sheet metal exteriors, many of their internal components are also made of sheet or plate stock. Sheet metal parts are generally characterized by high strength, good dimensional accuracy, good surface finish, and relatively low cost [2,3].…”

Section: Introductionmentioning

confidence: 99%

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An Investigation Into a Conventional Spinning Process Combined With Flow Forming With Simultaneously Burnishing Processes

Atia

El-Abden

El-Sheikh

et al. 2021

Journal of Advanced Engineering Trends

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Spinning process is a sheet metal forming technology used in the production of the symmetrical industrial parts. It is an efficient and inexpensive manufacturing process and has been widely used in various applications. In this research, new technique was developed to perform three different operations in the same stroke, namely conventional spinning, shear spinning (wall thickness reduction) and burnishing processes. This new technique has been performed by a new tool which consists of three stages, the first stage consists of two rollers to carry out conventional spinning process; the second stage includes two opposite balls to perform the process of shear spinning and the last stage comprises another two opposite balls to perform the process of burnishing. The burnishing balls differ from the shear balls in which that the burnishing balls have a spring behind the balls to decide the required burnishing load. Experimental work was conducted and confirmed the success of the presented technique. The response of the product quality and required load to process parameters such as rotational speed (46,76,150 and 230 rpm), axial feed (0.15,0.3,0.6 and 1.21 mm/rev) and burnishing load (20, 25 and 30 KN) was checked and clarified. The results showed that, the optimum condition for forming load occurred at rotation speed at 150 rpm, axial feed 0.3 rev/mm and burnishing load 25 KN.

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Section: Introductionmentioning

confidence: 99%

“…4). The apparatus consists of new tool (2) which is attached to the lathe carriage in order to use automatic feeding of carriage, the lathe machine (1), The mandrel with diameter of 105 mm(3) which is attached to the lathe chuck, and the y…”

mentioning

confidence: 99%

An Investigation Into a Conventional Spinning Process Combined With Flow Forming With Simultaneously Burnishing Processes

Atia

El-Abden

El-Sheikh

et al. 2021

Journal of Advanced Engineering Trends

View full text Add to dashboard Cite

show abstract

“…[3,[13][14][15][16][17][18][19]. Among them, a large amount of research on forming liquid pressure parameters has been published to determine their influence on the forming process and product quality [20][21][22][23][24]. Studies have been conducted with many methods, the most common of which have been simulation or experimentation, or a combination of both.…”

Section: Introductionmentioning

confidence: 99%

Experimental Modeling of Pressure in the Hydrostatic Formation of a Cylindrical Cup with Different Materials

Nguyen

Bui

2021

Applied Sciences

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Forming complex sheet products using hydrostatic forming technology is currently a focus of the majority of forming processes. However, in order to increase stability during the forming process, it is necessary to identify and analyze the dependency of the forming pressure and the quality of a product on input parameters. For the purpose of modeling the forming pressure, this paper presents empirical research on the product of a cylindrical cup made of various materials, including carbon steel (DC04), copper (CDA260), and stainless steel (SUS 304) with different thicknesses (0.8 mm, 1.0 mm, and 1.2 mm), under a defined range of binder pressures. The regression method is selected to formulate an equation that shows the relationship between the input parameters, including the materials (ultimate strength and yield stress), workpiece thickness, binder pressure and the output parameter, and the formation of fluid pressure. The mathematical equation allows us to determine the extent of the effect of each input on the forming pressure. The experimental results can be used for the easier planning and forecasting of the process and product quality in hydrostatic forming.

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A Study on the Impact of Blank Holder Pressure on Forming Pressure and Product Quality in Hydrostatic Forming

Thu

Nguyen

2022

Int. J. Precis. Eng. Manuf.

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About the sheet metal testing by hydraulic bulging

Cited by 3 publications

References 17 publications

An Investigation Into a Conventional Spinning Process Combined With Flow Forming With Simultaneously Burnishing Processes

An Investigation Into a Conventional Spinning Process Combined With Flow Forming With Simultaneously Burnishing Processes

Experimental Modeling of Pressure in the Hydrostatic Formation of a Cylindrical Cup with Different Materials

A Study on the Impact of Blank Holder Pressure on Forming Pressure and Product Quality in Hydrostatic Forming

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