Bandaso, Januard Buyung (2016) Pengaruh Perlakuan Panas Terhadap Kekerasan Dan Mikrostruktur Pisau Dari Material Baja Bekas. Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.
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Abstract
Para pande besi memanfaatkan baja bekas sebagai bahan
utama pembuatan pisau dapur. Baja bekas menjadi pilihan
karena ketersediaan baja bekas yang melimpah dan harga yang
jauh lebih murah. Proses perlakuan panas hardening yang
dilakukan pande besi masih tradisional. Penelitian ini bertujuan
untuk melihat pengaruh hardening terhadap kekerasan dan
struktur mikro pada pisau yang dibuat dari baja bekas.
Proses hardening yang dilakukan terdiri atas hardening
yang dilakukan oleh pande besi dengan metode yang mereka
gunakan dan hardening yang dilakukan di laboratorium. Proses
hardening di laboratorium, terdiri atas proses hardening yang
diikuti dengan tempering dan proses flame hardening. Pisau
dipanas hingga temperatur hardening dan dilakukan penahanan
temperatur, kemudian di quenching pada media pendingin air.
Selanjutnya spesimen dipanaskan kembali hingga temperatur
4000 C dan ditahan selama 1 jam kemudian spesimen didinginkan
pada udara terbuka. Flame hardening dilakukan pada sisi mata
pisau dimana spesimen dipanaskan hingga temperatur
austenisasi dan selanjutnya di dinginkan pada media pendingin
air. Jarak antara permukaan spesimen dengan ujung nozel 5 cm.
Hasil kekerasan pisau dari material poros roda yang
mengalami proses flame hardening 22,8 HRC dan hardening
29,2 HRC. Struktur mikro terdiri atas perlit dan ferit. Kekerasan
pisau dari material swing arm untuk flame hardening 36 HRC
dengan struktur mikro perlit dan ferit pada hardening
kekerasannya 47,2 HRC dan struktur mikro martensit dan
austenit sisa. Kekerasan pisau dari material pegas daun untuk
proses flame hardening 46,4 HRC dan proses hardening 63 HRC
dengan struktur mikro martensit dan austenit sisa. Kekerasan
pisau dari material poros mesin industri untuk flame hardening
32 HRC sedangkan proses hardening 59,6 HRC dengan struktur
mikro martensit dan austenit sisa.. Kekerasan pisau dari material
poros pewarna batik pada flame hardening 51,4 HRC dan pada
proses hardening 62,8 HRC dengan struktur mikro terdiri dari
martensit dan austenit
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The blacksmith used scrap steel for made of kitchen knife.
They chose to use scrap steel because availability in the shop is
abundant and cheaper. The process hardening heat treatment of
blacksmith is still traditional. The purpose of this experiment is
looking at the effect of hardening process to hardness and
microstructure on knife.
There are two process of hardening in this experiment.
Hardening process of blacksmith and hardening in the laboratory
using a furnace. In the Laboratory for hardening process the
specimen is heating to hardening temperature and hold for a
while, then quenching in water. After that for tempering process
the specimen heated to a temperature of 400 C and hold for 1
hour and then the specimen cooling in the air. As for flame
hardening, the blade is heated to hardening temperature, and
after that it is cooling in water. The distance between the
specimen surface with the tip of the nozzle is 5 cm.
The hardness that obtained on knife specimens from the
material of axle wheel of bike for flame hardening 22.8 HRC and
hardening used furnace is 29,2 HRC. Microstructure of the
specimen consists of pearlite and ferrite. The knife specimens
from material swing arm the hardness after flame hardening is 36
HRC with a microstructure consisting of ferrite and pearlite and
for process of hardening the hardness 47.2 HRC where its
microstructure of martensite and residual austenite. The
specimen of the leaf spring material for flame hardening the
hardness is 46.4 HRC and hardening is 63 HRC with
microstructure of martensitic and residual austenite. Specimen
from shaft industrial machinery the hardness of flame hardening
is 32 HRC and hardening is 59.6 HRC. The microstructure
consists of martensite and residual austenite. The specimen of dye
batik shaft material hardness of flame hardening is 51.4 HRC and
62.8 HRC on hardening. The microstructure consists of
martensite and residual austenite
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSM 672.36 Ban p-1 |
| Uncontrolled Keywords: | Baja bekas, Pisau dapur, Pande besi, Hardening, Tempering, Flame Hardening |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN752.I5 Steel--Heat treatment |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 23 Jun 2020 06:07 |
| Last Modified: | 23 Jun 2020 06:07 |
| URI: | http://repository.its.ac.id/id/eprint/76206 |
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