Analysis of riser variations in recycled aluminum sand casting on hardness values

Abstract In this study, we will discuss the process of casting used aluminum metal. Used aluminum is one of the industrial wastes that can be converted into products using the casting method. This study aims to obtain a good casting material with good hardness values and minimal defects. The rese...

Full description

Saved in:

Bibliographic Details
Published in:	Invotek: Jurnal Inovasi Vokasional dan Teknologi Vol. 21; no. 3; pp. 213 - 220
Main Authors:	Abadi, Zainal, Kurniawan, Andre, Arafat, Andril, Abdillah, Nur Ichsan, Senthot, Daffa Raihan
Format:	Journal Article
Language:	English
Published:	Fakultas Teknik Universitas Negeri Padang 13-10-2021
Subjects:	alumnium casting hardness test riser sand molding scrap
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Abstract In this study, we will discuss the process of casting used aluminum metal. Used aluminum is one of the industrial wastes that can be converted into products using the casting method. This study aims to obtain a good casting material with good hardness values and minimal defects. The research will focus on the results of castings by analyzing the visuals and hardness values of the specimens. The research design is a pre-experimental type of One-Shot Case Study by conducting treatments whose results will be directly observed and analyzed descriptively. The treatment given is to increase the number of risers in recycled aluminum castings. Variations in the number of risers are 1 riser, 2 riser, and 3 riser. Each variation has 3 specimens, so there are 9 specimens in the study. The data from the test results contained a fairly large porosity value for each riser variation. The hardness value that has been tested using the Rockwell hardness tester obtained the highest hardness value occurs in the 2 riser variation, namely 27.69 HRA and the lowest hardness value occurs in the 3 riser variation, namely 21.56 HRA. Thus, for casting used aluminum with a casting pattern as in this study, it is best to use 2 risers.
ISSN:	1411-3414 2549-9815
DOI:	10.24036/invotek.v21i3.940