Differences 1#: Open side Traditional sand casting must be divided into open sides for easy modeling Lost Foam Casting No Open Edge
Differences 2#: Draft angle Traditional sand casting must have a certain draft angle Lost foam casting basically has no or very small draft angle
Differences 3#: Composition Traditional sand casting consists of an outer core and core Lost Foam Casting Single Model
Differences 4#: Number of applications In traditional sand casting, one model can be used multiple times Lost foam casting one type at a time
Differences 5#: Material Traditional sand-casting metal or wood Lost Foam Casting Foam
15 Differences Between Sand Casting and Lost Foam Casting
Modeling process
Differences 6#: Molding sand Traditional sand casting has core sand mixed with binder, water, and additives Lost Foam Casting dry sand without binder, any additives, and water
Differences 7#: Sand filling method Traditional Sand Casting Mechanical Sand Filling Self-gravity micro-vibration sand filling in lost foam casting
Differences 8#: Compact way Mechanical compaction of traditional sand casting The physical effect of lost foam casting (self-weight, micro-vibration, vacuum) is compact
Differences 9#: Sandbox features Traditional sand casting prepares a special sandbox according to the characteristics of each part Simple universal sandbox for lost foam casting
Differences 10#: Mold Traditional sand casting cavity is composed of the core assembly Lost Foam Casting Cavity Real Mold
Differences 11#: Coating Most of the traditional sand casting does not need coating Lost foam casting must have a coating
Pouring process
Differences 12#: Filling characteristics Traditional sand casting fills the cavity metal with the model Physical and chemical effects of the lost foam casting
Differences 13#: The main factors affecting the filling speed Traditional sand casting pouring system and pouring temperature Lost foam casting is mainly affected by the gas pressure state in the mold, the pouring technique, and the pouring temperature
Shakeout
Differences 14#: Shakeout Traditional sand casting requires strong vibration to knock over the box or lift out the casting. Read More:De-coring Machine Automatic Separation of Castings and Sand in Lost Foam Casting
Differences 15#: Clean up Traditional sand casting needs to polish flash burr and ingate Lost foam casting only needs to polish the Ingate, with no flash, and burr.
