Optimal gating system design for investment casting of 17-4PH stainless steel enclosed impeller by numerical simulation and experimental verification

2017 ◽  
Vol 92 (1-4) ◽  
pp. 1093-1103 ◽  
Author(s):  
Jenn-Kun Kuo ◽  
Pei-Hsing Huang ◽  
Hsin-Yi Lai ◽  
Jian-Rong Chen
Keyword(s):  
Numerical Simulation ◽  
Stainless Steel ◽  
System Design ◽  
Experimental Verification ◽  
Investment Casting ◽  
Gating System

Engineering computing and data-driven for gating system design in investment casting

2020 ◽  
Vol 111 (3-4) ◽  
pp. 829-837 ◽  
Author(s):  
Jiangping Yu ◽  
Donghong Wang ◽  
Dayong Li ◽  
Ding Tang ◽  
Xin Hao ◽  
...  
Keyword(s):  
System Design ◽  
Investment Casting ◽  
Data Driven ◽  
Gating System ◽  
Engineering Computing

Twin Gating System Design for Typical Thin Wall Stainless Steel Castings Based on Fast Pouring Mechanism

2013 ◽  
Vol 457-458 ◽  
pp. 1657-1660 ◽  
Author(s):  
Da Chun Yang ◽  
Sen Lin Li ◽  
Feng He
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
System Design ◽  
Directional Solidification ◽  
Thin Wall ◽  
Gating System ◽  
Steel Castings ◽  
Ordinary Steel ◽  
Wall Stainless Steel

The thin wall stainless steel castings is difference to ordinary steel castings in foundry technology. This paper discussed the problems of thin wall stainless steel castings which appearing in the flow controlling board for warm-air pipe, and put forward the foundry technology of this stainless steel castings based on the principle of directional solidification and fast pouring mechanism. According to the theory, twin gating system has been designed for the controlling board castings, and two ladles are pouring into the open twin gating system at the same time. The shrinkage of finally congealing part was fed by two risers. The practice has shown that the design is feasible, there is not cold shut, misrun, scab, and oxidizing for the castings, and the requirements of mechanical properties can be met.

scholarly journals Prediction of Shrinkage Porosity in Femoral Stem of Titanium Investment Casting

2016 ◽  
Vol 16 (4) ◽  
pp. 157-162 ◽  
Author(s):  
◽  
Muslim Mahardika ◽  
A. Syamsudin ◽  
Keyword(s):  
System Design ◽  
Investment Casting ◽  
Pure Titanium ◽  
Femoral Stem ◽  
Solidification Process ◽  
Shrinkage Porosity ◽  
Commercially Pure Titanium ◽  
Gating System ◽  
Cross Section Area ◽  
System Designs

Abstract Design of gating system is an important factor in obtaining defect-free casting. One of the casting defects is a porosity caused by internal shrinkage in solidification process. Prediction of the internal shrinkage porosity in the femoral stem of commercially pure titanium (CP-Ti) is investigated based on the gating system design. The objective of this research is to get the best gating system between three gating system designs. Three gating system designs of the femoral stem were simulated in an investment casting method. The internal shrinkage porosity occurs on the largest part and near the ingate of the femoral stem. The gating system design that has ingates cross section area: 78.5; 157; and 128.5 mm2 has the least of the internal shrinkage porosity. This design has the most uniform solidification in the entire of the femoral stem. An experiment is conducted to validate the simulation data. The results of internal shrinkage porosity in the three gating system designs in the simulation were compared with the experiment. Based on the comparison, the trend of internal shrinkage porosity at the three gating system designs in the simulation agrees with the experiment. The results of this study will aid in the elimination of casting defect.

Gating System Design Optimization for Investment Casting Process

2019 ◽  
Vol 28 (7) ◽  
pp. 3887-3893
Author(s):  
Marek Bruna ◽  
Dana Bolibruchová ◽  
Richard Pastirčák ◽  
Anna Remišová
Keyword(s):  
Design Optimization ◽  
System Design ◽  
Investment Casting ◽  
Casting Process ◽  
Gating System ◽  
Investment Casting Process ◽  
System Design Optimization
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