Glass fusing

Glass fusing is the joining together of pieces of glass at high temperature, usually in a kiln.^[1][2] This is usually done roughly between 700 °C (1,292 °F) and 820 °C (1,510 °F),^[3][4] and can range from tack fusing at lower temperatures, in which separate pieces of glass stick together but still retain their individual shapes,^[5] to full fusing at higher ones, in which separate pieces merge smoothly into one another.^[6]