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114876

DEVELOPMENT OF DEEP DRAWING WITHOUT BLANK-HOLDER FOR PRODUCING ELLIPTIC BRASS CUPS THROUGH CONICAL DIES

Article

Last updated: 26 Dec 2024

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Subjects

-

Tags

Mechanical, Power, Production, Design and Mechatronics Engineering.

Abstract

This paper introduces a new technique for deep drawing of elliptic cups through a conical die without blank holder or draw beads. In this technique an elliptical-cup is produced by pushing a circular blank using a flat-headed elliptic punch through a conical die with an elliptic aperture in a single stroke. A 3D parametric finite element (FE) model was built using the commercial FE-package ANSYS/APDL. Effects of die and punch geometry including, half-cone angle, die fillet radius, die aperture length and punch fillet radius on limiting drawing ratio (LDR), drawing load and thickness strain of the cup have been investigated. A die with half cone angle of 18° has shown the best drawability for the new technique. Finite element model results showed good agreement with experimental results. A die with an aspect ratio of 2 has been used with punches having aspect ratios ranging from 2 to 2.25. Tensile tests were carried out to obtain the stress-strain behavior for the used material. A total of seven punches were used for forming sheet metal of brass (CuZn33) with initial thicknesses of 1.5, 1.9, 2.4 and 3.2 mm at different clearance ratios (c/t). The effects of blank thickness and clearance ratio on limiting drawing ratio, drawing load and thickness strain were experimentally investigated. An elliptic cup with a limiting drawing ratio (LDR) of 2.26 has been successfully achieved.

DOI

10.21608/jesaun.2013.114876

Keywords

Sheet metal forming, Deep drawing, Conical die, Elliptic cup, FEM, LDR

Authors

First Name

Abdullah A.

Last Name

Dhaiban

MiddleName

-

Affiliation

Department of Mechanical Engineering, Faculty of Engineering, Assiut University

Email

a_daiban@yahoo.com

City

-

Orcid

-

First Name

M-Emad S.

Last Name

Soliman

MiddleName

-

Affiliation

Department of Mechanical Engineering, Faculty of Engineering, Assiut University

Email

-

City

-

Orcid

-

First Name

M.G.

Last Name

El-Sebaie

MiddleName

-

Affiliation

Department of Mechanical Engineering, Faculty of Engineering, Assiut University

Email

-

City

-

Orcid

-

Volume

41

Article Issue

No 4

Related Issue

16867

Issue Date

2013-07-01

Receive Date

2013-06-02

Publish Date

2013-07-01

Page Start

1,530

Page End

1,548

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 41_Issue No 4_Pages 1530-1548.pdf

PDF . 626.3kB

Link

https://jesaun.journals.ekb.eg/article_114876.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=114876

Order

11

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

DEVELOPMENT OF DEEP DRAWING WITHOUT BLANK-HOLDER FOR PRODUCING ELLIPTIC BRASS CUPS THROUGH CONICAL DIES

Details

Type

Article

Created At

23 Jan 2023