Investigations for statistically controlled rapid casting solution of low brass alloys using three dimensional printing

2009 ◽  
Vol 1 (2) ◽  
pp. 208 ◽  
Author(s):  
J.P. Singh ◽  
Rupinder Singh
Keyword(s):  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Rapid Casting ◽  
Casting Solution ◽  
Low Brass ◽  
Dimensional Printing ◽  
Brass Alloys

Investigations for a statistically controlled rapid casting solution of lead alloys using three-dimensional printing

2009 ◽  
Vol 223 (9) ◽  
pp. 2125-2134 ◽  
Author(s):  
J P Singh ◽  
R Singh
Keyword(s):  
Shell Thickness ◽  
Three Dimensional ◽  
Dimensional Accuracy ◽  
Production Costs ◽  
Economic Point ◽  
Three Dimensional Printing ◽  
Rapid Casting ◽  
Casting Solution ◽  
Measuring Machine ◽  
Dimensional Printing

The purpose of the present investigation is to study the feasibility of decreasing the shell thickness for a statistically controlled rapid casting solution of lead alloy using three-dimensional printing technology. Starting from the identification of a component/benchmark, technological prototypes were produced with different shell thickness. Measurements on a coordinate measuring machine helped in calculating the dimensional tolerances of the castings produced. Some important mechanical properties were also compared to verify the suitability of the castings and further results are supported by microstructure analysis. The study suggested that the shell thickness having a value less than the recommended one is more suitable from a dimensional accuracy and an economic point of view. The provided data from the experimentation are extremely useful for the industrial application of the considered technology. The result indicates that at 1 mm shell thickness, the hardness of the casting improves from the recommended 12 mm. Further, production costs and production time have been reduced by 45.75 and 43 per cent, respectively, in comparison with the 12 mm recommended shell thickness.

Comparison of rapid casting solutions for lead and brass alloys using three-dimensional printing

2009 ◽  
Vol 223 (9) ◽  
pp. 2117-2123 ◽  
Author(s):  
R Singh ◽  
J P Singh
Keyword(s):  
Wall Thickness ◽  
Three Dimensional ◽  
Microstructure Analysis ◽  
Pouring Temperature ◽  
Three Dimensional Printing ◽  
Rapid Casting ◽  
Weight Density ◽  
Measuring Machine ◽  
Dimensional Printing ◽  
Brass Alloys

The purpose of the present investigation is to study and compare the feasibility of decreasing the shell wall thickness for rapid casting solution of brass and lead alloys using three-dimensional printing (3DP) technology. Starting from the identification of components/benchmarks, technological prototypes have been produced at different shell thicknesses using lead and brass alloys. Measurements on a coordinate measuring machine helped in calculating the dimensional tolerances of the castings produced. Some important mechanical properties are also compared to verify the suitability of the castings and further results are supported by microstructure analysis. The study suggested that the production of sound casting for minimum wall thickness depends on pouring temperature and weight density. It has been observed that IT grades comparable to machining can be obtained with 3DP for lower pouring temperature alloys. Further feasibility of obtaining minimum shell thickness is more dependent on pouring temperature than weight density. Based on improved dimensional accuracy and microstructure analysis, the saving of costs up to 45.75 per cent and time up to 43 per cent can be achieved over the recommended one in the case of lead alloy for the selected benchmark/component. For brass alloy casting saving of costs and time up to 40.05 and 32.84 per cent, respectively, has been achieved.

Metallurgical Affects of Three Dimensional Printing Based Rapid Casting Solution

2011 ◽  
Vol 701 ◽  
pp. 1-8
Author(s):  
Rupinder Singh
Keyword(s):  
Heat Transfer ◽  
Mechanical Properties ◽  
Surface Finish ◽  
Dimensional Stability ◽  
Transfer Rate ◽  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Rapid Casting ◽  
Black Art ◽  
Dimensional Printing

Three dimensional printing (3DP) as rapid casting (RC) solutions has transformed over centuries from black art to science, but the metallurgical impinge on the process responsible for change in mechanical properties (like: surface finish, hardness, dimensional stability etc.) are still disputed. The purpose of the present research paper is to review metallurgical affect of 3DP based RC solution. The result of study suggests that prominent reason found to be responsible for improving the mechanical properties of RC is control of heat transfer rate while solidification (thus reducing dendrite formation).

Sign in / Sign up

Export Citation Format

Share Document