Journals / Demiryolu Mühendisliği / 2023 / Sayı: 18

The Effect of 500 °C Preheating and Bending Processes applied to the Rails on the Mechanical and Chemical Properties of the Rail for the Production of Railway Turnouts

Demiryolu Makası İmalatında Ön Isıtma ve Presleme İşlemlerinin Rayın Mekanik ve Kimyasal Özelliklerine Etkisi

Mehmet Emin Akay(KARABÜK ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ, MAKİNE MÜHENDİSLİĞİ BÖLÜMÜ, RAYLI SİSTEMLER MÜHENDİSLİĞİ PR.)0000-0001-5178-398X
Umut Emre Bingöl(MZA Demiryolu Malzemeleri ve Makine İmalat Ltd.)0000-0002-2754-5639
Anıl Rıdvanoğulları(MUŞ ALPARSLAN ÜNİVERSİTESİ, TEKNİK BİLİMLER MESLEK YÜKSEKOKULU, MOTORLU ARAÇLAR VE ULAŞTIRMA TEKNOLOJİLERİ BÖLÜMÜ)0000-0002-2652-7519
Pages
73–85
Publication Date
2023-07-31
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

As a result, applying such a heat treatment during turnout production was found usefull in terms of easier process.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The change in the mechanical and chemical properties of the materials after the 500 °C preheated bending process applied to the rails in the production of railway turnouts was investigated in this paper.
📊
Key Findings & Data:A rail profile of R260 quality 60E1 was used, three equal lenghts of rail sample were used, taken from a monoblock rail with the same charge number.
💡
Conclusion & Impact:As a result, applying such a heat treatment during turnout production was found usefull in terms of easier process.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Demiryolu makası · Ray ön ısıtma · Presleme

Abstract

The change in the mechanical and chemical properties of the materials after the 500 °C preheated bending process applied to the rails in the production of railway turnouts was investigated in this paper. A rail profile of R260 quality 60E1 was used, three equal lenghts of rail sample were used, taken from a monoblock rail with the same charge number. Two of the rail sample were 500 °C preheated and bending process was applied. Third sample has bending process without preheated condition. Tensile test, % elongation test, hardness test and chemical composition test were applied to the all test samples taken from the rail parts. When the test results obtained from the samples taken from the rails, which were subjected to 500 °C preheated pressing process, were examined, it was observed that the mechanical and chemical values of the material remained within the limit values. As a result, applying such a heat treatment during turnout production was found usefull in terms of easier process.

Özet

Bu makalede demiryolu makas üretiminde kullanılan raylara uygulanan 500 °C ön ısıtma ve presleme işleminin malzemelerin mekanik ve kimyasal özelliklerine etkisi incelenmiştir. Kullanılan ray R260 60E1 olup, aynı şarj numarasına sahip monoblok bir raydan numune olarak, 3 eşit ray parçası alınmıştır. Bu ray parçalarının ikisine 500 °C ön ısıtmalı presleme işlemi uygulanırken, diğer ray parçasına ise ön ısıtma ve presleme işlemi uygulanmamıştır. Ray parçalarından alınan test numunelerine çekme testi, % uzama testi, sertlik testi ve kimyasal kompozisyon testi uygulanmıştır. Elde edilen test sonuçları birbiri içerisinde malzeme sınır değerleri dikkate alınarak incelenmiştir. 500 °C ön ısıtmalı presleme işlemi uygulanan raylardan alınan numunelerden elde edilen test sonuçları incelendiğinde, malzemenin mekanik ve kimyasal değerlerinin sınır değerlerinin içinde kaldığı gözlenmiş, sonuçta makas üretiminde bu tür bir ısıl işlem uygulanması, üretimin kolaylaşması açısından yararlı görülmüştür.

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Cite This Article

Akay, M. E., Bingöl, U. E., Rıdvanoğulları, A. (2023). The Effect of 500 °C Preheating and Bending Processes applied to the Rails on the Mechanical and Chemical Properties of the Rail for the Production of Railway Turnouts. Demiryolu Mühendisliği, Sayı: 18, 73–85. https://doi.org/10.47072/demiryolu.1297318

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