line of the mold must be precision finished to avoid flash, due to an LSR's low viscosity.
While this example is affected primarily by the location of the parting
line (as determined by the foundry engineer and patternmaker), designers must be aware of the interdependence between the parting
line, the undercuts and the draft angles.
Because of an LSR's low viscosity, the parting
line must be precision finished to avoid flash.
The main parting
line, which moves independent of the transfer chamber's actions, remains closed until the part is sufficiently cooled.
Everyone knows that the parting
line and flash base configuration determine the overall deflashing quality.
surfaces can be incorporated in the 3-D computer design but Mack experience has found it more practical to build them conventionally.