Experimental and Numerical Study on Redrawing Cylindrical Products to Polygon Shapes

Mukhirmesh, Kadhim H.; Dalfi, Hussein

doi:10.1007/s11223-023-00528-1

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…Lastly, the results of the DD process of the existing FEA have been verified with numerous formerly researched studies in the literature, and it appears that the DD process is close to it. 17,18,20,22 The heptagonal cup of the DD process FEA is illustrated in Figure 5(b).…”

Section: Finite Element Analysis (Fea)mentioning

confidence: 99%

“…Once the optimal condition and corresponding blank draw-in are determined, the feedback control algorithm can adjust the force of BH accordingly. In a study by Mukhirmesh and Dalfi, 22 the DD operation for creating heptagonal shapes from circular blanks and cylindrical mugs was analyzed. The study compared EXP and FEA results and found that the maximum punch load required for a heptagonal-shaped mug is 40.25 kN, while in the redrawing process, it is 35.16 kN.…”

Section: Introductionmentioning

confidence: 99%

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Radial clearance influence on strain and stress distribution of the polygonal shape deep-drawing operation

Mukhirmesh,

Dalfi,

Al-Abedy

2024

Advances in Mechanical Engineering

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In the existing research, polygonal -shaped dies were manufactured based on the dimensions of the design. These dies were then assembled on the deep-drawing device to create polygonal cups (specifically heptagonal cups) for conducting experimental work tests. The process was achieved via a deep-drawing operation to create heptagonal cups with dimensions (diameter D = 40mm and height L = 31.5 mm). For both experimental work and finite element analysis, the cups of heptagonal shapes were formed from flat circular blanks of Low Carbon Steel (thickness to = 0.7 mm) and diameter D = 80mm. A commercial software program, ANSYS, was employed to perform this finite element analysis. The research aims to study the effect of different radial clearance ( RC = 1.1 to,1.2 to, and 1.3 to) between die and punch for heptagonal shape DD operations on the forming load, the height of the cup, thickness distribution, strain and stress distribution along the cup wall (side-wall and wall curvature). The analysis outcomes indicate that the maximum forming force was 51.250 kN with the wall curvature, the maximum effective strain was 0.8231, and the maximum stress was 676 MPa when the [Formula: see text]1.1 to). Additionally, the squeezing process in the mug wall occurred with [Formula: see text]1.1 to).

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Section: Finite Element Analysis (Fea)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Radial clearance influence on strain and stress distribution of the polygonal shape deep-drawing operation

Mukhirmesh,

Dalfi,

Al-Abedy

2024

Advances in Mechanical Engineering

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The redrawing of oval shells for the use of a connector part

Lin,

Zhang

2024

J. Phys.: Conf. Ser.

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Oval-shell parts have been widely used in consumer electronics such as the receptacle of the lightning connector. The current stamped part, based on the design of rectangular redrawing, exhibits uneven distribution of wall thickness and cannot meet the required tolerance. The wall thickness tends to be smaller near the entrance of the flat wall than that of the semi-cylindrical wall while it tends to be larger near the bottom of the flat wall than that of the semi-cylindrical wall. This paper proposes an elliptical scheme for the redrawing of oval shells for the progressive stamping process. The variation of the wall thickness between the flat wall and the semi-cylindrical wall has been improved.

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Application of multi draw radius deep draw die for increase in formability of redrawn cylindrical cups

Thipprakmas,

Jankree,

Rojananan

2024

Proceedings of the Institution of Mechanical Engineers, Part E:

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Currently, deep drawing and redrawing are the primary methods used to create beverage cans. Research to increase the efficiency of this procedure is ongoing. This study aimed to improve the formability of redrawn cups by proposing a new technique, wherein a multi-die radius (MDR) die was used as a deep drawing die for producing deep-drawn cups and then redrawn once more to create the redrawn cup. It was found that a more uniformly deformed grain microstructure evolutions and cup wall thickness around the cup were achieved in the case of the MDR deep-drawing process compared with the conventional deep-drawing process. However, using the MDR deep-drawn cups to fabricate redrawn cup, the formability in terms of LDR could not be increased. However the formability in terms of cup wall thickness can be significantly increased by approximately 7% thicker.

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Experimental and Numerical Study on Redrawing Cylindrical Products to Polygon Shapes

Cited by 3 publications

References 9 publications

Radial clearance influence on strain and stress distribution of the polygonal shape deep-drawing operation

Radial clearance influence on strain and stress distribution of the polygonal shape deep-drawing operation

The redrawing of oval shells for the use of a connector part

Application of multi draw radius deep draw die for increase in formability of redrawn cylindrical cups

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