Metal furniture is made of different combinations of pipes or parts. In addition to the combination of welding, screws, rivets and so on, unlike wood, metal can be freely customized size table, chair, tea, screen and so on. Various plates, screens, tubes and solid tubes of a certain size can be made by bending, bending, folding or combining. If welded connection methods are not used, parts can be easily separated and transported, and transportation costs can be saved. In addition to being easy to produce, furniture made entirely of metals, especially aluminum and alloys, is usually preferred in outdoor and public areas where corrosion resistance and collision requirements are higher. In the light weight is very important in the aircraft, high-rise buildings and fire protection requirements of the filing cabinet, then, let's understand the origin of metal furniture manufacturing, production methods, development process, etc.!

Metal was widely used before plywood and plastic were widely used. In the second half of the 20th century, designers bent various metals in order to achieve unique shapes. At present, housing, schools, hospitals, canteens, all kinds of positions are usually completely metal furniture (metal chairs, tables, cabinets), a piece of furniture can be assembled with different materials or the same material. According to the production method, can be divided into such as cast iron chair, stainless steel cabinet, barbed wire armchair.

Cast furniture

Casting is one of the oldest methods of metal forming. All metals except copper can be injected. What's more, it's an economic makeover. Heated molten metal can be cast into molds. After casting, the surface of the piece must be cleaned in various ways.

Bronze cast furniture

Bronze is harder than copper and suitable for casting. An important feature of casting is that molten bronze cannot form air bubbles. The yellowing occurs because the material is yellow, hard, resistant to corrosion and suitable for grinding. Foundry work by filling, empty sand, beeswax, clay, or mortar methods reached advanced levels in the 6th century. In the Bronze Age, Anatolia, Iran, Egypt, and Mesopotamia produced a variety of flower POTS, gems, and tools. In Egypt, furniture cast in bronze was found from the tombs of Egyptian Kings.

Casting for throne, furniture feet, ornaments. Bronze castings from ancient Rome are known to be covered with gold and silver. Furniture is carved with animal figures and relief motifs. Bronze was expensive and difficult to find, and led to the production of parts rather than whole furniture, and was used for furniture trinkets, ornaments, and paints. However, bronze furniture is no longer a priority because of its cost and fragility. Cast aluminum furniture

Aluminum was discovered in the first half of the 19th century and used in the second half. Compared to iron, steel, and copper, aluminum has a very light weight density, is non-oxidizing, and is soft, so the weight density of aluminum can be formed without heating, thus adding value. The development of aluminum casting technology and its wide application in furniture production began in the 1950s. During this period, aluminum castings were mainly used for supporting parts of furniture or furniture frames.

In the past 20 years, the production of single cast aluminum furniture has become very common. Some cast aluminum furniture and plastic supporting furniture production, which reflects the freedom of aluminum and plastic molding.

Because aluminum is a light and soft material, the casting method is commonly used to create durable furniture frames.

By die casting (casting method), more elegant and thinner furniture can be produced.

The aluminum chair is 25 percent lighter. One third of steel and iron alone are less than one third of copper and its alloys, and one quarter of silver and lead. The natural alumina layer is resistant to corrosion. The natural protective layer of aluminum can be strengthened by anodizing process, and different paints can also be used for coloring. This process can better protect aluminum furniture from chemical action. Durable and stackable furniture can be produced using aluminum castings.

Methods of forging and bending metal furniture

Metal furniture is formed by force effects such as forging and bending. When a part is formed by forging, its shape changes due to force. Metal furniture can be forged by hand, using molds or hammers, or hot or cold. Metal used to be shaped by hand, but now it can be forged by a hydraulic press.

Forming metal by forging is one of the oldest methods, such as casting. In pre-industrial times, when iron pipes, plates, and barbed wire were not widely available on the market, the material was formed by forging or casting. Especially in ancient times, furniture, grills and candlesticks were made of wrought iron. Now, materials like sheet metal and pipes are twisted and forged to make vintage furniture.

Bending is a common method of metal forming. It can be carried out with simple manual equipment, various bending machines and bending machines. One of the important advantages of metal materials and furniture production is the availability of metal in the market. When preparing the furniture skeleton, the furniture is usually finished by metal bending the profiles.