ANALISIS KEGAGALAN PISTON PADA KENDARAAN RODA EMPAT KAPASITAS 1000 CC

Ahmad Zayadi

Sari


Pistons are one of the main components of a 1000 cc engine that functions as a pressure suppressor and a recipient of pressure combustion in the combustion chamber. In the examination of the 1000 cc sedan engine that has been operating for 30,000 hours found a rough sound on the engine and experienced loss compression on the cylinder block number 2. The purpose of the study was to obtain the factors causing the deformation of the piston 1000 cc sedan vehicles. The research method used is metallographic observation using ASTM E 3 and ASTM E 112, testing hardness using ASTM E 92 and SNI 19-0409-1989 and testing chemical composition using ASTM A 751. The results of research on piston damage can be seen that observation macrostructure proves that there is plastic deformation on the surface area of the piston material, the results of microstructure observation are known to occur microcrack on the top surface of the right side of the piston, there is no change in micro hardness between the piston material in the deformed area with the deformed piston material hardness, piston material made of alloy Al-Si. In the area of the piston surface that experiences deformation, Mg2Si and Mg2Al3 compounds are formed, these compounds which cause microcrack on the piston's upper surface. Plastic deformation on the piston surface occurs due to a collision between the piston surface and the cylinder head due to the buildup of crust on the piston surface.


Kata Kunci


piston, deformation, metallography, hardness, chemical composition

Teks Lengkap:

PDF

Referensi


Nurhadi. 2010. Studi karakteristik material piston dan pengembangan prototipe piston berbasis limbah piston bekas. Tesisis. Program studi magister teknik mesin program pasca sarjana universitas diponegoro semarang.

Wahyu, B, U. 2008. Pengaruh penambahan modifier stronsium dan phosphor serta proses perlakuan panas pada sifat mekanik dan struktur mikro alumunium AC8H untuk produk piston. Tesis. Fakultas teknik program studi metalurgi dan material universitas Indonesia. Depok.

Hasiolan, P. 2003. Analisis Kualitas Material Piston Pada Sepeda Motor Produk China Dan Produk Jepang. Skripsi. Teknik Mesin. Universtitas Nasional.

ASTM Standards, 2003, Metal Test Methods and Analytical Procedures,volume 03.01, West Conshohocken United States.

Duskiardi, T, S., 2002, Pengaruh Tekanan dan Temperatur Die Proses Squeeze Casting terhadap Kekerasan dan Struktur Mikro pada Material Piston Komersial Lokal, Jurnal Teknik Mesin Vol. 4 No. 1 April 2002, Universitas Kristen Petra Surabaya, pp. 1-5.

ASTM. Metals Test Methods And Analytical Procedures, 2002, Vol 03.01.West Chonshohocken. ASTM International.

ASM International, 1993, ASM Specialty Handbook: Alumunium and Alumunium Alloys, Ohio.

Surdia, Tata & Saito, Shinroku. 1992. Pengetahuan Bahan Teknik.(edisi kedua). Jakarta: Pradnya Paramita.

American Society Of Material, 1990, Handbook Vol 13, Corrosion.

Anonim, Buku Pedoman Perbaikan dan Informasi Teknik Mesin 1000 cc, PT ASTRA DAIHATSU MOTOR TECHNICAL SERVICE DIVISION,

Anonim, BASIC 1 PSG DAY RELEASE, Astra International Training Center.

Anonim, Buku Ajar Mesin Konversi Energi PTM307.

Doehler, H., Die Casting, McGraw Hill Book Company, New York.


Article Metrics

Sari view : 104 times
PDF - 97 times

Refbacks

  • Saat ini tidak ada refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Creative Commons License


This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Fakultas Teknik UPN "Veteran" Jakarta