Design, Finite Element Analysis and Optimization of Helical Angular Pressing (HAP) Method as a Novel SPD Technique

Ömer Karabey

Makale detayları

Design, Finite Element Analysis and Optimization of Helical Angular Pressing (HAP) Method as a Novel SPD Technique

Yazarlar:

Ömer Karabey

Yayıncı:

Bitlis Eren University

Ana Başlıklar:

Engineering

Dergi:

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.12 Issue 4, pp.959-968

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001306375

pISSN:

2147-3129

Anahtar kelimeler:

Özet:

 Severe Plastic Deformation SPD processes improve the mechanical properties of materials by obtaining Ultra Fine Grained UFG materials, orienting the grains and reforming the grains. Helical Angular Pressing HAP is a newly proposed Severe Plastic Deformation SPD method. In order to improve the efficiency of the HAP method, its die geometry should be optimized first. In this context, four parameters helical diameter, helical pitch, helical height and channel radius were determined for the die channel geometry, each with four levels according to the literature. Then, thanks to Taguchi L16 combinations, 16 Finite Element Analyses FEA were carried out using Deform 3D software instead of 256 simulations, and effective strain values and maximum pressing load values were obtained. Later on, using the SPSS 16 software, Taguchi optimization was carried out to obtain the optimum HAP die channel geometries by minimizing the press load and maximizing the effective strain values. Next, the Finite Element Analysis FEA was repeated with these determined optimum die channel parameters. Finally, the efficiency of this novel HAP method was compared with conventional Equal Channel Angular Pressing ECAP and Twist Extrusion TE methods. As a result, HAP method provides effective strain values equivalent to 10 number of passes after processing with ECAP. And it is approximately 4 times higher than that achieved by TE processing. As a result of the Taguchi optimization, it is concluded that the values in the combination of diameter d60 mm, height h50 mm, radius r4 and pitch p1.25 are the optimum die geometry. In conclusion, these results indicate that the proposed novel HAP method is an efficient and applicable SPD technique.

 Severe Plastic Deformation SPD processes improve the mechanical properties of materials by obtaining Ultra Fine Grained UFG materials, orienting the grains and reforming the grains. Helical Angular Pressing HAP is a newly proposed Severe Plastic Deformation SPD method. In order to improve the efficiency of the HAP method, its die geometry should be optimized first. In this context, four parameters helical diameter, helical pitch, helical height and channel radius were determined for the die channel geometry, each with four levels according to the literature. Then, thanks to Taguchi L16 combinations, 16 Finite Element Analyses FEA were carried out using Deform 3D software instead of 256 simulations, and effective strain values and maximum pressing load values were obtained. Later on, using the SPSS 16 software, Taguchi optimization was carried out to obtain the optimum HAP die channel geometries by minimizing the press load and maximizing the effective strain values. Next, the Finite Element Analysis FEA was repeated with these determined optimum die channel parameters. Finally, the efficiency of this novel HAP method was compared with conventional Equal Channel Angular Pressing ECAP and Twist Extrusion TE methods. As a result, HAP method provides effective strain values equivalent to 10 number of passes after processing with ECAP. And it is approximately 4 times higher than that achieved by TE processing. As a result of the Taguchi optimization, it is concluded that the values in the combination of diameter d60 mm, height h50 mm, radius r4 and pitch p1.25 are the optimum die geometry. In conclusion, these results indicate that the proposed novel HAP method is an efficient and applicable SPD technique.

 Severe Plastic Deformation SPD processes improve the mechanical properties of materials by obtaining Ultra Fine Grained UFG materials, orienting the grains and reforming the grains. Helical Angular Pressing HAP is a newly proposed Severe Plastic Deformation SPD method. In order to improve the efficiency of the HAP method, its die geometry should be optimized first. In this context, four parameters helical diameter, helical pitch, helical height and channel radius were determined for the die channel geometry, each with four levels according to the literature. Then, thanks to Taguchi L16 combinations, 16 Finite Element Analyses FEA were carried out using Deform 3D software instead of 256 simulations, and effective strain values and maximum pressing load values were obtained. Later on, using the SPSS 16 software, Taguchi optimization was carried out to obtain the optimum HAP die channel geometries by minimizing the press load and maximizing the effective strain values. Next, the Finite Element Analysis FEA was repeated with these determined optimum die channel parameters. Finally, the efficiency of this novel HAP method was compared with conventional Equal Channel Angular Pressing ECAP and Twist Extrusion TE methods. As a result, HAP method provides effective strain values equivalent to 10 number of passes after processing with ECAP. And it is approximately 4 times higher than that achieved by TE processing. As a result of the Taguchi optimization, it is concluded that the values in the combination of diameter d60 mm, height h50 mm, radius r4 and pitch p1.25 are the optimum die geometry. In conclusion, these results indicate that the proposed novel HAP method is an efficient and applicable SPD technique.

 Severe Plastic Deformation SPD processes improve the mechanical properties of materials by obtaining Ultra Fine Grained UFG materials, orienting the grains and reforming the grains. Helical Angular Pressing HAP is a newly proposed Severe Plastic Deformation SPD method. In order to improve the efficiency of the HAP method, its die geometry should be optimized first. In this context, four parameters helical diameter, helical pitch, helical height and channel radius were determined for the die channel geometry, each with four levels according to the literature. Then, thanks to Taguchi L16 combinations, 16 Finite Element Analyses FEA were carried out using Deform 3D software instead of 256 simulations, and effective strain values and maximum pressing load values were obtained. Later on, using the SPSS 16 software, Taguchi optimization was carried out to obtain the optimum HAP die channel geometries by minimizing the press load and maximizing the effective strain values. Next, the Finite Element Analysis FEA was repeated with these determined optimum die channel parameters. Finally, the efficiency of this novel HAP method was compared with conventional Equal Channel Angular Pressing ECAP and Twist Extrusion TE methods. As a result, HAP method provides effective strain values equivalent to 10 number of passes after processing with ECAP. And it is approximately 4 times higher than that achieved by TE processing. As a result of the Taguchi optimization, it is concluded that the values in the combination of diameter d60 mm, height h50 mm, radius r4 and pitch p1.25 are the optimum die geometry. In conclusion, these results indicate that the proposed novel HAP method is an efficient and applicable SPD technique.

Makale detayları

Design, Finite Element Analysis and Optimization of Helical Angular Pressing (HAP) Method as a Novel SPD Technique

Yazarlar:

Ömer Karabey

Yayıncı:

Bitlis Eren University

Ana Başlıklar:

Engineering

Dergi:

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.12 Issue 4, pp.959-968

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001306375

pISSN:

2147-3129

ECAP

SPD

Helical Angular Pressing (HAP)

Finite Element Analysis (FEA)

Sayı

Makale detayları

Design, Finite Element Analysis and Optimization of Helical Angular Pressing (HAP) Method as a Novel SPD Technique

Yazarlar: Ömer Karabey

Yayıncı: Bitlis Eren University

Ana Başlıklar: Engineering

Dergi: Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.12 Issue 4, pp.959-968

Belge Tipi: Makale

Yayın Tarihi: 12/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001306375

pISSN: 2147-3129

ECAP

SPD

Helical Angular Pressing (HAP)

Finite Element Analysis (FEA)

Sayı

Yazarlar:

Ömer Karabey

Yayıncı:

Bitlis Eren University

Ana Başlıklar:

Engineering

Dergi:

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.12 Issue 4, pp.959-968

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001306375

pISSN:

2147-3129