| Autor: |
Slamet, Sugeng, Khoeron, Slamet, Suyitno |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2024, Vol. 3167 Issue 1, p1-4, 4p |
| Abstrakt: |
The forging process is one of the forms of metal used to make gamelan instruments. Tin bronze is the main material used in producing various musical instruments, including gamelan. This research aims to determine the effect of forging on changes in the microstructure, hardness and acoustic of cast product gamelan blades. The method is to make a sand mold with a blade type gamelan pattern. The material used is tin bronze with a composition of Cu-25wt.% Sn. Tin bronze alloy is poured at a temperature of 1100°C into a sand mold. Gamelan blades are separated into cast blades and wrought blades. Wrought blades are made by reheating cast blades at 650oC in an induction furnace. The forging process is carried out by reducing the number of cast blades by 30%. The analysis was carried out by comparing the microstructure, hardness and sound acoustic of cast and wrought blade specimens. The results on cast blades show a coarser microstructure, inclusions and porosity defects. Cast blades with post-cast forging treatment show finer microstructure, plate grain, and decreased porosity defects. The hardness of the blade with forging treatment increases by 28.6% VHN. Sound acoustic shows the natural frequency values between cast and wrought blades of 712.2 Hz and 951.8 Hz. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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