Mechanical Properties of Samurai Swords (Carbon Steel) Made using a Traditional Steelmaking Technology (tatara)

Okayasu, Mitsuhiro; Sakai, Hideharu; T, Tanaka

doi:10.4172/2169-0022.1000162

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…Menurut dokumentasi dan penelitian arkeologi, ada banyak cara yang dapat dilakukan untuk memproduksi pedang secara konvensional, misalnya teknik pembuatan Katana (pedang Samurai) Jepang dengan material baja karbon [7], sementara di bagian Timur terdapat pembuatan pedang dengan Teknik Damaskus yang dikenal dengan nama Teknik Welded Damaskus [8].…”

Section: Pendahuluanunclassified

Pengaruh Teknik Tempa Lipat Terhadap Perubahan Sifat Mekanik Material AISI O1 Pada Pembuatan Pisau Tanto

Latief

Sayuti

Windujati

2021

JREM

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ABSTRAKTanto merupakan senjata tajam yang berasal dari Jepang dan merupakan senjata kedua bagi para Samurai di Jepang. Tanto biasa terbuat dari baja karbon menengah hingga baja karbon tinggi yang. Material baja yang digunakan untuk pembuatan Tanto dalam penelitian ini adalah baja AISI seri O1 karena memiliki karakteristik sifat mampu bentuk yang baik serat dapat dikuatkan melalui proses heat treatment. Material baja ini dibuat dengan proses tempa lipat dengan variasi tempa empat lipatan dan satu lipatan. Pembuatan Tanto dan spesimen uji dilakukan dengan proses tempa lipat secara konvensional menggunakan tungku arang, dengan temperatur tempa rata-rata yaitu ±1200oC, kemudian dilanjutkan dengan quenching pada temperatur ± 850oC, serta tempering pada temperatur ±250oC. Penelitian ditujukan untuk mengetahui pengaruh dari proses tempa empat lipatan dan tempa satu lipatan terhadap sifat mekanik, yaitu kekerasan dan kekuatan impak serta untuk melihat perubahan pada struktur mikro. Hasil pengujian menunjukkan bahwa nilai kekerasan paling tinggi sebesar41HRC yang dimiliki oleh pada raw material, ,sedangkan nilai impak paling tinggi sebesar 224,02 Joule/cm² ayng dicapai oleh material dengan proses tempa empat lipatan, Fasa akhir yang ditemukan pada baja tempa empat lipatan adalah bainit dan martensit, sementara perlit dan ferit ditemukan pada baja satu lipatan, dan lath martensit ditemukan pada pada raw material Kata kunci: Pisau Tanto, Tempa lipat ,Quenching, Tempering, Uji Impak ABSTRACT Tanto is a sharp weapon originating from Japan and is the second weapon for Samurai in Japan. Tanto is usually made of medium carbon steel to high carbon steel. The material which is used in this research is AISI O1 series steel because of its high ability to be formed and also can be made tough through a heat treatment process. This steel is made by folding forge process, with variation in number of folding, which is 4 folds and 1 fold. The making of Tanto and test specimens was carried out by conventional fold forging processes by using a charcoal furnace, with an average forging temperature at ± 1200oC, continue with quenching at ± 850oC, and tempering at ± 250oC. The research is carried out in order to determine the effect of the four-folds forging and one-fold forging to the mechanical behavior, which are hardness and impact strength, and also to see change in its micro structure. The test that have been carried out shows that the highest hardness value of 41 HRC owned by raw material, while the highest impact value of 224.02 Joules / cm² obtained by material with four layer forging process. Final phases that found in the four-fold forged steel are bainite and martensite, pearlite and ferrite found in one-fold forged steel. and lath martensite in found in the raw material. Keywords: Tanto Knife, Folding Forging, Quenching, Tempering, Testing, Impact Tests

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Section: Pendahuluanunclassified

Pengaruh Teknik Tempa Lipat Terhadap Perubahan Sifat Mekanik Material AISI O1 Pada Pembuatan Pisau Tanto

Latief

Sayuti

Windujati

2021

JREM

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“…The fold forging process applied in this work was adapted from the Samurai sword making technique [6,22], as depicted in Fig. 1.…”

Section: Fold Forging Processmentioning

confidence: 99%

Effect of Fold-Forging Techniques for Sword Making Process on Mechanical Properties of Medium Carbon Steel

Paveebunvipak¹,

Yu-on²,

Rotpaisarnkit³

et al. 2017

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Abstract. The most important procedure for making a traditional Samurai sword consists of metal forming at high temperature and subsequent quenching. Hereby, two specific techniques are additionally included, namely, fold-forging and mixing of different steel grades. In this work, both particular processes were applied to the steel grade AISI 1055, a conventional low carbon steel and the Nam-Phee steel, which has been commonly used to produce the well-known Nam-Phee sword for a long time in Thailand. Afterwards, mechanical properties of produced samples were investigated and compared. Four combinations between the examined steels and both techniques were taken into account. It was found that Nam-Phee steel samples subjected to the fold-forging obviously showed more homogenous and finer microstructure. Their resulting tensile strength, flexural strength and impact energy were significantly increased. The improved mechanical properties of the Nam-Phee specimens were close to those of the Tamahagane steel used for making Samurai sword. Moreover, AISI 1055 steel specimens mixed with the low carbon ductile steel as core exhibited much higher flexural strength and impact energy.

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Welding by Hot Forging of Two Carbon Steels for the Manufacture of Spanish and Japanese Weapons

Duarte¹,

Gw²,

Sánchez³

et al. 2018

J Material Sci Eng

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Mechanical Properties of Samurai Swords (Carbon Steel) Made using a Traditional Steelmaking Technology (tatara)

Cited by 3 publications

References 4 publications

Pengaruh Teknik Tempa Lipat Terhadap Perubahan Sifat Mekanik Material AISI O1 Pada Pembuatan Pisau Tanto

Pengaruh Teknik Tempa Lipat Terhadap Perubahan Sifat Mekanik Material AISI O1 Pada Pembuatan Pisau Tanto

Effect of Fold-Forging Techniques for Sword Making Process on Mechanical Properties of Medium Carbon Steel

Welding by Hot Forging of Two Carbon Steels for the Manufacture of Spanish and Japanese Weapons

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