Investigation of Deep Drawability of Rectangular Shaped Cups in Deep Drawing Dies

Cebeli Ozek; Hayrettin Akkelek

doi:10.46460/ijiea.1006144

TR EN

Açılı Derin Çekme Kalıplarında Dikdörtgen Şekilli Kapların Derin Çekilebilirliğinin Araştırılması

Öz

Derin çekme, sac malzemelerin çekme kalıpları yardımıyla press kuvvetleri altında belirli derinlik ve şekillerde üç boyutlu kapların elde edilmesi işlemidir. Bu çalışmada, dikdörtgen geometriye sahip kapların açılı derin çekme kalıplarında deneysel olarak ve sonlu elemanlar metodu (SEM) ile sayısal olarak şekillendirilmesi araştırılmıştır. Bunun için kalıp boşluğu içine malzeme akışının kolaylaştırılması amacıyla matris/baskı plakası yüzeylerine α=0°, α=3°, α=6°, α=9°, α=12° ve α=15° açılar verilmiştir. Zımba ve kalıp köşe radyüsleri 8 mm sabit olarak alınmıştır. Deney malzemesi olarak 0,9 mm kalınlığında St37 çelik sac kullanılmıştır. Deneyler, 2500 N, 5000 N, 7500 N ve 10000 N baskı plakası kuvvetleri uygulanarak yapılmıştır. Açıların ve baskı plakası kuvvetinin limit çekme oranı, et kalınlığı ve kap hasarları üzerindeki etkileri deneysel ve sayısal olarak incelenmiş ve optimum zımba kuvveti belirlenmiştir. Elde edilen deneysel sonuçlar, ANSYS sonuçlarıyla karşılaştırılmıştır. Sonuç olarak, farklı açılara sahip dikdörtgen geometriye sahip çekme kalıplarında kalıp/baskı plakası yüzey açılarının artmasının geleneksel kalıplara göre daha yüksek limit çekme oranı sağladığı tespit edilmiştir. Deneysel olarak elde edilen sonuçlar ile sayısal sonuçların yaklaşık değerler olduğu gözlenmiştir.

Anahtar Kelimeler

Dikdörtgen kesitli kaplar , Açılı derin çekme kalıpları , Limit çekme oranı , Sonlu elemanlar metodu , Cidar kalınlığı.

Investigation of Deep Drawability of Rectangular Shaped Cups in Deep Drawing Dies

Abstract

Deep drawing is the process of obtaining three-dimensional containers of certain depths and shapes under pressing forces with the help of drawing molds of sheet materials. In this study, the numerical shaping of rectangular cups in angled deep drawing dies was investigated experimentally and by using the finite element method (FEM). For this purpose, die/blank holder surfaces have α=0°, α=3°, α=6°, α=9°, α=12° and α=15° angles in order to facilitate material flow into the die cavity. The punch and die corner radii are taken as 8 mm. St37 steel sheet with a thickness of 0,9 mm was used as the test material. The experiments were carried out by applying die/blank holder forces of 2500 N, 5000 N, 7500 N and 10000 N. The effects of angles and die/blank holder force on limit draw ratio, wall thickness and the damage of cups were investigated experimentally and numerically, and optimum punch force was determined. Obtained experimental results were compared with ANSYS results. As a result, it has been determined that the increase in die/blank holder surface angles in drawing dies with rectangular geometry with different angles provides a higher limit drawing rate than conventional dies. It has been seen that the experimental results and numerical results are approximate values.

Keywords

Rectangular cups , Angular deep drawing dies , Limit drawing ratio , Finite element method , Wall thickness.

Kaynakça

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Ayrıntılar

Birincil Dil

İngilizce

Konular

Mühendislik

Bölüm

Araştırma Makalesi

Yazarlar

Cebeli Ozek ^*
0000-0001-7603-415X
Türkiye

Hayrettin Akkelek Bu kişi benim
0000-0002-6811-5993
Türkiye

Yayımlanma Tarihi

31 Aralık 2021

Gönderilme Tarihi

8 Ekim 2021

Kabul Tarihi

22 Kasım 2021

Yayımlandığı Sayı

Yıl 2021 Cilt: 5 Sayı: 2

DOI

https://doi.org/10.46460/ijiea.1006144

IZ

https://izlik.org/JA39YY92NM

APA

Ozek, C., & Akkelek, H. (2021). Investigation of Deep Drawability of Rectangular Shaped Cups in Deep Drawing Dies. International Journal of Innovative Engineering Applications, 5(2), 187-194. https://doi.org/10.46460/ijiea.1006144

AMA

1.Ozek C, Akkelek H. Investigation of Deep Drawability of Rectangular Shaped Cups in Deep Drawing Dies. ijiea, IJIEA. 2021;5(2):187-194. doi:10.46460/ijiea.1006144

Chicago

Ozek, Cebeli, ve Hayrettin Akkelek. 2021. “Investigation of Deep Drawability of Rectangular Shaped Cups in Deep Drawing Dies”. International Journal of Innovative Engineering Applications 5 (2): 187-94. https://doi.org/10.46460/ijiea.1006144.

EndNote

Ozek C, Akkelek H (01 Aralık 2021) Investigation of Deep Drawability of Rectangular Shaped Cups in Deep Drawing Dies. International Journal of Innovative Engineering Applications 5 2 187–194.

IEEE

[1]C. Ozek ve H. Akkelek, “Investigation of Deep Drawability of Rectangular Shaped Cups in Deep Drawing Dies”, ijiea, IJIEA, c. 5, sy 2, ss. 187–194, Ara. 2021, doi: 10.46460/ijiea.1006144.

ISNAD

Ozek, Cebeli - Akkelek, Hayrettin. “Investigation of Deep Drawability of Rectangular Shaped Cups in Deep Drawing Dies”. International Journal of Innovative Engineering Applications 5/2 (01 Aralık 2021): 187-194. https://doi.org/10.46460/ijiea.1006144.

JAMA

1.Ozek C, Akkelek H. Investigation of Deep Drawability of Rectangular Shaped Cups in Deep Drawing Dies. ijiea, IJIEA. 2021;5:187–194.

MLA

Ozek, Cebeli, ve Hayrettin Akkelek. “Investigation of Deep Drawability of Rectangular Shaped Cups in Deep Drawing Dies”. International Journal of Innovative Engineering Applications, c. 5, sy 2, Aralık 2021, ss. 187-94, doi:10.46460/ijiea.1006144.

Vancouver

1.Cebeli Ozek, Hayrettin Akkelek. Investigation of Deep Drawability of Rectangular Shaped Cups in Deep Drawing Dies. ijiea, IJIEA. 01 Aralık 2021;5(2):187-94. doi:10.46460/ijiea.1006144