Numerical simulation of filling pressure casting

Numerical simulation of filling pressure casting

La simulation numérique du remplissage en fonderie sous pression
La simulation numérique du remplissage en fonderie sous pression my little blog fonderie

Foundry under pressure, a system of effective and well-designed diet provides a proper filling of the room, health room corresponding to the specifications of the client and does not degrade some mold elements (collage, erosion) while providing a time cycle and minimum downtime (TRS). Various tools exist to make possible the more optimized design and require a minimum of development and changes during initial testing of mold production.

Role of the feeding system

A supply system must:

  • To evacuate air from the cavity as far as possible
  • Easy to fill all areas of rooms
  • Able to transmit the pressure multiplication (P3) massive areas or sensitive
  • Completing parts (multi-cavity cluster) in the same manner

Design rules

  • Length of the longest possible attack (for permetttre a short filling time and avoid excessive speed attack)
  • Have massive attacks near areas
  • Limit the number of attacks (not contiguous) each to prevent uncontrolled flow of metal
  • Thickness sufficient to transmit P3 attack while ensuring easy cutting
  • Avoid attacking in front of small pin uncooled (collage) close attacks casting particular
  • Adapt sections of attacks in different areas to fill
  • Ensure sprayed attacks flow to disperse the best porosities


  • Experience feedback (REX) and know-how on previous designs
  • A business tool (Salsa 3D, developed by IWTC and sold by sold by ESI)
  • Numerical simulation of filling (in-house or outsourced). IWTC performs many optimizations initials or by numerical simulation of mold designs for the founders and principals.

Source : CTIF

Source : My little blog fonderie

Last modified on Friday, 13 June 2014 07:42