Crafts made of metal materials such as gold, silver, copper, iron, tin, or other materials. Has a thick, vigorous, luxurious, elegant, fine style.
Metal crafts can be divided into gold, silver, bronze (including antique copper, spot copper, etc.), tin, iron painting and so on. Divided into three categories according to use: practical, display and jewelry. Practical products include bottles, plates, stoves, hot pots, copper pots, silver utensils, tin utensils, tea sets and other daily utensils, as well as religious Buddhist supplies such as bells, pans, stoves, bells, etc. Such practical handicrafts are generally cast, forged, engraved, carved, welded, inlaid, etc., and have a relief-like decoration, which is different from ordinary daily necessities. The display products include screens, wall decorations, ornaments, car decorations, horse decorations, sedan decorations, and various antiques such as tripods, smoked, halogen, cymbals, and jue. Jewellery includes headpieces, rings, bracelets, necklaces, earrings, tie clips, cufflinks, corsages, collar flowers, etc. In addition, there are metal crafts that combine practicality and decoration, such as canes, swords, clocks, fountain pens, thermometers, and so on.
The process depends on the material, shape, structure and decoration of the product, and is generally divided into: ① hot processing processes such as casting, calcining, baking, welding; ② cold working processes such as hammering, extrusion, upsetting, nesting, and chiseling; ③Knitting, stacking, spotting and other pressing processes; ④Inlaying, inlaying, spotting, and glaze filling; ⑤Gold plating (silver), gilt gold, gold-clad (silver), and polishing surface treatment processes. Before the 1950s, metal crafts were basically hand-operated. After the middle of the 1950s, with the progress and development of industry, some auxiliary processes have been gradually mechanized, and the key processes that determine the artistic quality of products, such as spotting, filling, engraving, and bonding, are still completed manually.
With the development of science, metal crafts made with laser cutting machines are more suitable for ordinary people’s daily life. Using three-dimensional laser cutting machine, it can cut two-dimensionally and three-dimensionally of plane and curved surface. The thickness of stainless steel that can be cut is 0.05-2mm. The system uses a fiber laser with good beam quality and flexible transmission, and a six-axis industrial robot, which can perform three-dimensional cutting with high spatial accuracy. The cutting quality is good, the edges are free of burrs, the cutting efficiency is high, and the cutting speed can reach 6m / min.