Both V process casting and lost foam casting are recognized as the third generation of physical molding methods after mechanical molding and chemical molding. Both of these casting processes use dry sand filling, vibration compaction, sealing sand box with plastic film, vacuum pumping to reinforce the mold and negative pressure casting. The two processes of V process casting and lost foam casting are complementary to each other, and their respective characteristics are compared in the following table:

Both lost foam casting and V process casting belong to near-net forming technology, and it is easy to realize clean production, which is in line with the general trend of casting technology development, so it has broad development prospects.