Fuse metal together by directing huge amounts of energy into small areas.
Sets greenware in piles with sand and clay between pieces to support and separate them during bisque-kiln firing by either of following methods: Throws refractory clay mixed with sand between each plate, and after pile is built up, fills in edges with refractory clay, packing and pressing it by hand. Arranges ware in piles with sandy clay between layers. Fills in edges by setting pile on whirler which revolves it before spout forcing fine sand or refractory clay by gravity between plates. Inspects ware and rejects inferior pieces. May build up pile of greenware in saggers, sanding and packing it piece by piece.