At this moment, the platform where the Sword Furnace was located was no longer flat, but had grooves appearing, surrounding the Sword Furnace, extending to the base of the furnace, and continuing to extend at an invisible depth.
Without Tang Banqing's explanation, Lin Tian had already guessed the purpose of these grooves, which was surely to channel the molten iron within the Sword Furnace. The iron flowed along these winding grooves and finally gathered in a sword-shaped mold. Once the iron solidified inside the mold, it formed the blank of the sword.
After that, the sword blank would undergo thousands of times of forging and then quenching, thus basically completing the main process of sword forging. Of course, this was the general sword forging process Lin Tian learned from ancient books. As for how the techniques of master swordsmiths differ, he was not sure.
