This produces an excellent surface finish with high dimensional accuracy.
The main advantages are the reusable mold, good surface finish, and good dimensional accuracy.
The process is not suitable for parts where dimensional accuracy and process repeatability are prime concerns.
Lead and tin: high density; extremely close dimensional accuracy; used for special forms of corrosion resistance.
These different factors greatly affect surface finish and dimensional accuracy of a part.
It is used to decrease the diameter, improve surface finish and improve dimensional accuracy.
While this process is simple, the dimensional accuracy is low.
Sizing is mostly used to give a forged or cast part better dimensional accuracy.
The process has high dimensional accuracy, with a tolerance of 0.010 in for the first inch and 0.002 in/in thereafter.
As compared to sand casting, this process has better dimensional accuracy, a higher productivity rate, and lower labor requirements.