The mold design is critical to the casting process. A well-designed mold ensures proper cooling rates, minimal defects, and ease of part removal. Factors to consider in mold design include:

  • Draft Angles: Slight tapering of mold walls to allow easier removal of the cast part.
  • Gating System: The channels through which molten metal flows into the mold must be designed for efficient filling and to prevent defects like air pockets.
  • Cooling Channels: Proper cooling channels are needed to ensure uniform cooling and reduce the risk of warping or cracking.
  • Ventilation: Adequate vents are essential for allowing gases to escape during casting to prevent defects.