ANALISIS PERBANDINGAN KEKERASAN PERMUKAAN POROS AXLE SHAFT JENIS MATERIAL S-43 YANG DILAKUKAN DENGAN PROSES INDUKSI HARDENING PADA MESIN 12-9 B “KORA NETUREN”

Authors

  • Sumiyanto Sumiyanto Program Studi Teknik Mesin Institut Sains dan Teknologi Nasional ISTN Jakarta Selatan

DOI:

https://doi.org/10.54378/bt.v14i1.263

Keywords:

Hardening, Holding Time, Heat Treatment Process.

Abstract

Hardening process is the process of hardening in a material heated above the critical temperature and then cooled quickly (quenched) to reach room temperature in order to improve hardness and strength of a material. Hardening process carried out on all the tools and some equipment or machine parts that have a major benefit is to obtain a higher hardness.

This research was conducted on 447 SNCM alloy steel which is a medium carbon steel grade that is equal to 0:30 to 0:38%. This type of steel can be hardened by heat treatment process that is by heating the steel at a temperature of 500oC, for 1 hour as the preheating temperature (preheated). Then proceed to the process of hardening, namely austenising temperature with 900oC with holding time 2 hours and cooled with oil and then water in tempering with holding time 1 hour at 300oC, 400oC and 500oC.

From research result obtained using the Vickers hardness values that increase occurred in materials that undergo a process of hardening at 900oC cooling using water media, whereas the lowest hardness value occurs in the original material.

References

Metallic Materials Vickers Hardness Test part 1, iso second ed., 1997-11-15, Swizerland ISO 6507-1:1997

Bradbury, “Dasar Metalurgi Untuk Rekasasawan” PT. Gramedia Pustaka Utama. 1997

Djaprie, Sriati. “Teknologi Mekanik” jilid 1 Erlangga, Jakarta. 1992

Avner, s.h., “Introduction To Physical Metallurgy”, mc. Graw-hill, new york, 1964.

www.wikipedia.com/2013/02/heat treatment.html

Http:www.egiskren.blogspot.com /2013/02/klasifikasi

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Published

2018-06-28

Issue

Vol. 14 No. 1 (2018): Bina Teknika

Section

Articles

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