In the production process of relief handicrafts, fire, hammer and chisel are the three important elements of wrought copper. For the local processing of relief crafts or large wrought copper works, high-temperature heating generated by oxygen and acetylene can be used. Large-scale work requires furnace fire and blast heating. Heating this part is relatively easy.
The hot copper plate should be flattened with a leather hammer. Raw materials such as rosin and clay are melted in a container in appropriate proportions, and then poured on a workbench with a raised edge of 3-5 cm around it, and the hot copper plate is fixed, which is stronger and more durable than a sack. Raw sand. Method. Hammers and chisels feel good.
The use of hammers and chisels is key to the whole process of forging copper, which is why "wrought copper" is also called "chiseled copper". Each master coppersmith has hundreds of chisels of various shapes in his hands. These chisels are used to outline wavy lines on the copper plate, called "wiring". It takes years to route quickly and accurately according to drawings. Kung Fu, especially some key parts such as the facial features of the characters.
Large-scale wrought copper works require the cooperation and collective creation of multiple coppersmiths and craftsmen. Some processes require the cooperation of craftsmen and are very tacit. For example, sometimes it is necessary to hang a copper plate. Master coppersmiths are engaged in both jobs. Both sides of the copper plate are carried out at the same time, so that each high and low line is perfect.