DIMENSIONING GATING SYSTEM FOR THE CASTING PRODUCED BY INVESTMENT CASTING AND ITS VERIFICATION VIA COMPUTER SIMULATION

2017 ◽  
Author(s):  
Peter Futas
Keyword(s):  
Computer Simulation ◽  
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

Computer simulation of investment casting processes

JOM ◽  
1989 ◽  
Vol 41 (2) ◽  
pp. 27-30 ◽  
Author(s):  
M. J. Beffel ◽  
K. O. Yu ◽  
M. Robinson ◽  
K. R. Schneider
Keyword(s):  
Computer Simulation ◽  
Investment Casting

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.

scholarly journals Features of technology for manufacturing cast toolbills from rapid-cutting steel R6M5

2020 ◽  
pp. 68-74
Author(s):  
F. I. Rudnitsky ◽  
L. P. Dolgiy
Keyword(s):  
Computer Simulation ◽  
High Speed ◽  
High Speed Steel ◽  
Alloying Elements ◽  
Steel R6m5 ◽  
Gating System ◽  
Cutting Steel ◽  
Gear Shaping

The article presents the results of computer simulation of the crystallization of castings from high-speed steel R6M5, intended for the manufacture of cutters and gear shaping tools in the conditions of OJSC “Minsk Gear Plant”. The use of modeling made it possible to optimize the gating system, reduce this volume of the profitable part by 30–35 % and increase the yield of suitable casting, which made it possible to reduce the consumption of expensive alloying elements introduced into the melt to compensate for burnout during melting and casting.

Investment Casting Defects of a Turbine Nozzle Made by K465 Alloy

2017 ◽  
Vol 898 ◽  
pp. 487-491
Author(s):  
Yang Li ◽  
Pei Jia Li ◽  
Xing Fu Chen ◽  
Hao Ran Liu ◽  
Jian Tao Wu ◽  
...  
Keyword(s):  
Investment Casting ◽  
Solidification Process ◽  
Casting Defects ◽  
Gating System ◽  
Grain Refiner

The investment casting defects in a turbine nozzle with size of φ 331mm and thickness 0.7 mm and the number of vanes of 31 have been studied in two aspects, which were the porosity of the turbine nozzle’s inner cone and the cracks of the turbine nozzle’s vanes. ProCAST software was used to analyze the nozzle’s solidification process. A suitable gating system was used to solve porosity issues effectively by changing local thickness and improving solidification conditions. The crack on the nozzle’s vanes was studied and a kind of grain refiner was used to solve crack issues by improving shell strength. In order to manufacture castings with high metallurgical quality and meet the design and use demands, a reasonable gating system and a moderate shell process were used.

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