TY  - JOUR
T1  - Recycled Aluminium from Motorcycle Pistons with Home Industry Casting Process
AU - Hadi, Syamsul AU - Murdani, Anggit. AU - , Wirawan AU - Puspito Buwono, Haris AU - Muda Nauri, Imam 
JO  - Journal of Engineering and Applied Sciences
VL  - 15
IS  - 12
SP  - 2630
EP  - 2636
PY  - 2020
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2020.2630.2636
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2020.2630.2636
KW  - Tensile specimen
KW  -tensile strength
KW  -recycled aluminium
KW  -motorcycle piston aluminium
KW  -shrinkage tolerance
AB  - Changes in tensile strength of recycled
aluminium from the piston as a problem encountered. The
objective of this research is to know the tensile strength of
recycled aluminium from piston for the next use. The
methods used are: design and manufacture of tensile
specimen mold, specimen casting, tensile testing, material
composition testing and data analysis. The test results
showed that the tensile strength of the motorcycle piston
aluminium worth 376 MPa was decreased to 191 MPa for
the 1<sup>st</sup> recycled (49%) from the 1<sup>st</sup> recycled to the 2nd
recycled value of 118 MPa (38.3%) and from 2<sup>nd</sup> recycled
to 3<sup>rd</sup> recycled worth 117 MPa (0.8%) caused by loss of
elements during recycling include Cu, Si and Fe. The
shrinkage tolerance in a successful foundry into a tensile
test specimen is smaller than 6%. The SEM photographs
show that the porosity of the 3<sup>rd</sup> recycled aluminium is
less than in the 2<sup>nd</sup> and 1<sup>st</sup> recycled which means the
solubility of the alloying element is preferable, wherein
the insoluble elements (Cu, Si and Fe) are decreased.
ER  -