Advanced Melting Technologies: Energy Saving Concepts and Opportunities for the Metal Casting Industry

2005 ◽  
Author(s):  
none, ◽  
Keyword(s):  
Energy Saving ◽  
Metal Casting ◽  
Casting Industry

Effect Pouring Temperature on Casting Defect Susceptibility of Hot Tearing in Metal Alloy Al-Si

2015 ◽  
Vol 758 ◽  
pp. 95-99 ◽  
Author(s):  
Akhyar Hasan ◽  
Suyitno
Keyword(s):  
Mold Temperature ◽  
Metal Alloy ◽  
Hot Tearing ◽  
Metal Casting ◽  
Casting Temperature ◽  
Pouring Temperature ◽  
Index Analysis ◽  
Defect Susceptibility ◽  
Casting Industry ◽  
Hot Tearing Susceptibility

Hot tearing is one of metal casting defects and often found in the casting products such as cracks on the surface. Solidifaction metal causes a thermal contraction and shrinkage, when the contraction and shrinkage occurs if a metal alloy is restrained by mold design, it will effect hot tearing. Hot tearing is influenced by several factors, including the chemical composition of the alloy, the casting temperature, mold temperature, mold constraint, fast or slow solidifaction, non uniform solidifaction, and so on. This study aimed to obtain a certain temperature that cause the maximum of hot tearing defects, so it can be recommended to the metal casting industry in aluminum-silicon material to avoid the casting temperature. Three variations of the casting temperature used in this study including 710 oC, 760 oC and 810 oC. The material used in this study is an alloy of Al-1.19% Si (percent by weight). The method used is a visual method using mold CRCM (Constrain Casting Rod Modified) Horizontal used for the index analysis of HTS (Hot tearing Susceptibility). The results gotten include the hot tearing increases with the increasing of casting temperature, and it decreases with the decreasing the casting pouring. The maximum of hot tearing index is 45 HTS at 760 oC for casting temperature. Tear formed on products from smooth categories (hairline cracks) to the complete categories (broken specimen).

scholarly journals Aplikasi 3D Printer Fused Deposite Material (FDM) pada Pembuatan Pola Cor

2019 ◽  
Vol 13 (2) ◽  
pp. 110
Author(s):  
Hamid Abdillah ◽  
Ulikaryani Ulikaryani
Keyword(s):  
Production Process ◽  
Metal Casting ◽  
3D Printer ◽  
Material System ◽  
Total Production ◽  
3D Cad ◽  
Classic Problem ◽  
Good Shape ◽  
3D Printers ◽  
Casting Industry

Metal Casting Industry has a classic problem in handling the production process and quality assurance. This research aims to provide solutions to solve the problems of the metal casting industry by introducing and applying 3D printers with a fused deposit material system. this technology is used to streamline the production process of cast patterns. The process of making a casting pattern usually takes 70% of the total production time of a cast product. The purpose of this study is to examine the application of making cast patterns with a 3D printer with a fused deposit material system. The research methods carried out are (1) create of 3D CAD cast patterns, (2) conversion to STL format, (3) 3D printer setup, (4) printing process, (5) analysis, (6) conclusions. The results obtained are a 3D printer with a fused deposit material system that can be used to make cast patterns. From the analysis of the accuracy of the cast pattern with the 3D printer has a difference in size ranging from 0.2 mm. As for the analysis of the quality of the geometry, the results of the cast pattern of the 3D printer with the fused deposit material system have a good shape but lack results on the surface. Thus a 3D printer with a fused deposit material system is suitable for making cast patterns because it has a consistent tendency and ease in making cast patterns. This opens up opportunities for continued development of 3D printers in the metal casting industry sector.

scholarly journals Reliability analysis of hanger shot blast KAZO machine in foundry plant

2018 ◽  
Vol 204 ◽  
pp. 03007
Author(s):  
Rinaldi Sam Prabowo ◽  
Priyo Agus Setiawan ◽  
Anda Iviana Juniani ◽  
Wiediartini ◽  
Ika Erawati
Keyword(s):  
Risk Assessment ◽  
Reliability Analysis ◽  
Load Capacity ◽  
Vital Role ◽  
Metal Casting ◽  
Analysis Method ◽  
Risk Priority Number ◽  
Effect Analysis ◽  
A Value ◽  
Casting Industry

In a metal casting industry, Hanger Shot Blast KAZO machine plays a very vital role for blasting. The downtime equipment data for the last five years, 2013 to 2017, shows that the hanger shot blast KAZO is the machine which frequently encounters downtime with the number of 503,75 hours. As the only blasting machine with 2 (two) tons of load capacity, the issues of hanger shot blast KAZO affect to the targeted production process of company. Moreover, it increases risk of safety for the workers surround the machine. The purpose of this current research is to find out the reliability value of the item/ component of hover shot blast KAZO machine using Reliability Analysis method. The malfunction of its component is reviewed by FMEA (Failure Mode and Effect Analysis). While the risk assessment is obtained from RPN (Risk Priority Number) calculation - MTTF value and reliability value R(t). The result of this current study found that there are 21 malfunctions on hanger shot blast KAZO machine. MTTF analysis shows the highest MTTF value is 9195,324 hours for bearing impeller component and the lowest is 3498,997 hours for motor components. Meanwhile, reliability analysis shows that the largest reliability value with 0.999915 is encountered by motor contactor of crane, while with a value of 0.26385, hanger rotator motor contactor component encountered the lowest reliability value.

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