PENGARUH HEAT TREATMENT T6 DENGAN VARIASI SUHU AGING TERHADAP KARAKTERISTIK SIFAT FISIS DAN MEKANIS VELG PADUAN ALUMUNIUM A356 PRODUK OEM TERNAMA

• Main Authors: , EDY ISWANTO, , Dr. Priyo Tri Iswanto, S.T., M.Eng.
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2013
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/124293/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=64413
• Institution: Universitas Gadjah Mada

Velg is vehicle components that will undergo static load and dynamic loads during use. The load can cause the velg decreased mechanical properties, even can cause failure. This research aims to determine whether the effect of heat treatment T6 and artificial aging on the aluminum A356 towards physical properties and the mechanical of velg. The material used in this research is the A356 aluminum alloy motorcycle velg. Test specimens were made based on JIS Z 2201 standard for tensile test and JIS Z 2202 for impact toughness test. This research uses five types of specimens that 1 type of specimen without undergoing heat treatment T6,1 type of specimen being subjected to T6 heat alone, and 3 types of specimens T6 heat treatment and artificial aging. Variations T6 heat treatment is conducted at a temperature of 5400 C heating specimen with hold time for 4 hours and then continued with aging at temperatures 1000 C, 1500 C, and 2000 C with a hold time of 3 hours. The test results showed that the alloy composition is made of aluminum alloy A356 with main composition of Al, Si, and Mg. After testing, the highest impact toughness possessed by the specimen with T6 heat treatment with the artificial aging temperature of 1000 C in the amount of 0.068 joule/mm2, while the tensile strength is owned by the largest non Heat Treatment specimens with tensile strength of 248.8 MPa. Porosity in the whole specimen is considered equal to porosity testing is only done on one specimen only.