Carving, in sculpture, refers to cutting or carving wood, stone or other materials into the desired shape can be called sculpture. Tools for this purpose include knives, chisels, round chisels, cones, flat axes and hammers. In the most common method of sculpture, one hand holds the chisel, the other hand holds the mallet, and then uses the mallet to knock the chisel into wood or stone. Although some metal processing technologies, such as welding and assembly, have become increasingly important in the past century, sculpture and moulding are still two main sculpture techniques. A finished sculpture can be called sculpture, but the word sculpture is usually used to refer to works with serious artistic or aesthetic connotations, from which the inspiration of the ceramic tile of the sculpture time comes.