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320011

Non-equal Channel Multi Angular Extrusion (NECMAE) – Part 2: The Role of Friction and Heat Generation due to Plastic Deformation

Article

Last updated: 24 Dec 2024

Subjects

-

Tags

Production Engineering

Abstract

Among the procedures developed for structure grain refinement, equal channel angular extrusion techniques experience a great popularity, owing to its proficiency to produce significant grain refinement in fully dense bulk-scale materials. It is essential to compromise between the design of die and processing parameters to estimate a homogeneous deformation, optimize the strain distribution, and load requirement. In this regard, numerical modelling has been done to comprehend the impact of temperature and friction on the newly developed plastic deformation technique known as "nonequal channel multi-angular extrusion" (NECMAE), which experienced a cross-sectional area reduction on the subsequent channel. Three friction coefficients were examined combined with heat generation analysis to evaluate the plastic strain homogeneity. The preliminary results obtained show that 30% reduction case with µ=0.1 has the most uniform strain distribution across the workpiece and improves strain homogeneity significantly by 6 times greater than the frictionless case. In general, the optimum strain distribution could be achieved by using the right combination of area reduction and frictional conditions. The analysis implies that plastic strain, temperature, and required load are significantly affected by localized plastic deformation zone and the incrementation of heat generated. Current study opens the opportunity to satisfy the workpiece hardening level due to different localizations of plastic deformation of the proposed die design.

DOI

10.21608/pserj.2023.237698.1261

Keywords

Severe plastic deformation (SPD), Finite element modelling (FEM), Equal channel angular extrusion (ECAE), Friction coefficient

Authors

First Name

noha

Last Name

naeim

MiddleName

-

Affiliation

Department of Production Engineering and Mechanical Design, Port Said University, port said, Egypt.

Email

noha.fouaad@eng.psu.edu.eg

City

-

Orcid

0000-0002-2240-4554

First Name

Mohamed

Last Name

El-Asfoury

MiddleName

S.

Affiliation

Department of Production Engineering and Mechanical Design, Port Said University, port said, Egypt.

Email

mohamed.saad@eng.psu.edu.eg

City

port said

Orcid

-

Volume

27

Article Issue

4

Related Issue

44757

Issue Date

2023-12-01

Receive Date

2023-09-19

Publish Date

2023-12-01

Page Start

90

Page End

101

Print ISSN

1110-6603

Online ISSN

2536-9377

Link

https://pserj.journals.ekb.eg/article_320011.html

Detail API

https://pserj.journals.ekb.eg/service?article_code=320011

Order

320,011

Type

Original Article

Type Code

813

Publication Type

Journal

Publication Title

Port-Said Engineering Research Journal

Publication Link

https://pserj.journals.ekb.eg/

MainTitle

Non-equal Channel Multi Angular Extrusion (NECMAE) – Part 2: The Role of Friction and Heat Generation due to Plastic Deformation

Details

Type

Article

Created At

24 Dec 2024