Method for operating a molding machine with a predicted in-mold PVT waveform of a molding resin

A non-transitory computer medium containing computer instructions stored therein for causing a computer processor to perform operations for setting a molding machine, the operations comprising:

• specifying a simulating domain corresponding to a genuine domain in a mold disposed on the molding machine, wherein the genuine domain has a mold cavity to be filled with a molding resin from the molding machine to prepare a molding product;
• performing a virtual molding by using an initial packing pressure profile to generate an initial state waveform expressing a relationship between an in-mold pressure and an in-mold temperature of the molding resin;
• obtaining an updated packing pressure profile for applying a molding pressure to at least a portion of the genuine domain while taking into consideration the initial state waveform;
• repeating the virtual molding while taking into consideration the updated packing pressure profile to generate an updated state waveform of the molding resin;
• and
• setting the molding machine taking into consideration the updated packing pressure profile to perform an actual molding by applying an actual molding pressure to the at least a portion of the genuine domain to prepare the molding product.