Tag
#foundry
2 topics across all disciplines.
Sand casting and gravity die casting
How a mould is actually built — pattern, cores, gating and risers — why every pattern is made oversize, what draft and parting line mean for the part you get, and what tolerance a casting can honestly hold.
Casting defects and design for casting
Shrinkage porosity, gas porosity, cold shuts, inclusions and hot tears — what each looks like, what actually causes it, and the design rules that prevent most of them before a mould is ever made.