Low pressure die casting

The Low Pressure Foundry (LPF) process consists of vertically injecting liquid metal from a furnace placed under the mold through a tube. The molten aluminum is pushed up and down by a pressure of about 1 bar, forcing it to fill the cavity of the metal mold.

This process provides excellent internal mechanical properties because the filling is very controlled. The central feeding with the possibility to multiply the pouring attacks are particularly suitable for the production of sand-core and complex parts. 

ADVANTAGES of the low pressure die casting

  • Allows to obtain complex shapes thanks to the use of a core.
  • Good mechanical characteristics : Rm=290Mpa ,Rp 0.2=210 Mpa, A%=6%.
  • High production rates using multi-cavity molds.
  • Good part quality with low porosity and reduced oxidation, which can be improved by heat treatment.
  • Stable, simple and highly automatable technology.
    Allows the production of thin-walled parts.

Manufactured parts

Saint Jean Industries uses this process as well for the mobility and energy industries in general. In the automotive industry, we find suspension/chassis parts, aluminum rims, and electric motor housings. And for the energy industries, SJI manufactures for example hydraulic pump casings, power plant casings.