Analisis Nyala Torch Oksidasi Pada Oxy-Acetylene Terhadap Sifat Fisik Dan Mekanik Sambungan Las Pelat Baja Karbon Rendah

Authors

  • Andika Wisnujati Program Vokasi, Universitas Muhammadiyah Yogyakarta
  • Rivaldy M Kartika Mechanical Engineering departement

DOI:

https://doi.org/10.18196/st.v20i1.3063

Keywords:

Oxy Acetylene, Oxidation Flame, Low Carbon Steel, Physical and mechanical properties

Abstract

Oxy-acetylene welding is widely used in small workshops for car body repair, automobile and motorcycle exhaust, and other improvements using a maximum temperature of 3000oC that can not be done through another process. The purpose of this study was to analyze the effect of torque oxy-acetylene flame on the physical-mechanical properties in welding connection low carbon steel plates . The method used by using a low carbon steel plate 2 (two) pairs in a butt weld dimmension of  300 mm x 75 mm x 1 mm. After welding with oxy-acetylene in torch oxidation flame, the specimens were  examined through physical observation including microstructure and mechanical properties. Micro hardness vickers was used to evaluate the hardness. Tensile properties was determine using the universal testing machine. In the microstructure testing, there is a pearlite and ferrite whose become different dimensions as it is affected by the heat and air pressure of the weld. Mechanical testing that is tensile test obtained yieldpoint of the specimen A 125,17 N/mm2 and specimen B 126,55 N/mm2. The result of tensile strength specimen A 166,35 N/mm2 and specimen B 169,76 N/mm2. While the vickers test obtained the highest hardness that is 152.5 VHN in the welding area, and the lowest hardness number is 124,9 VHN in the heat affected zone.

Author Biography

Andika Wisnujati, Program Vokasi, Universitas Muhammadiyah Yogyakarta

Mechanical Engineering departement

References

Handar, N dan Yudi, P. I (2011)., Studi Kekuatan Las Oxy Acetylene pada Variasi Kampuh Jurnal Teknik Mesin Vol. 1, No. 1, Oktober 2011: 1-8. Institut Teknologi Padang.

JIS Handbook Non Ferrous Metal and Metallurgy, 1977, Japanese Standards Association

Surdia, Tata, dkk.(1999)., Pengetahuan Bahan Teknik, Edisi 4, PT. Pradya Paramita, Jakarta.

Wilopo Irman A, dkk. (2013)., Studi Kualitas repair welding menggunakan metode oxy acetylene dengan PWHT pada cast wheel alumunium. Universitas Negeri Yogyakarta.

Downloads

Published

2017-05-06

How to Cite

Wisnujati, A., & Kartika, R. M. (2017). Analisis Nyala Torch Oksidasi Pada Oxy-Acetylene Terhadap Sifat Fisik Dan Mekanik Sambungan Las Pelat Baja Karbon Rendah. Semesta Teknika, 20(1), 89–96. https://doi.org/10.18196/st.v20i1.3063

Issue

Vol. 20 No. 1 (2017): MEI 2017

Section

Articles

License


Semesta Teknika is licensed under a Creative Commons Attribution 4.0 International License.

Authors who publish with this journal agree to the following terms:

  • Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  • Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  • Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).