For a long time, metal has occupied an important position in furniture manufacturing due to its durability and good thermal conductivity. With its excellent forming characteristics, metal products can be varied, from tiny fruit forks to heavy bed frames and sofa frames, which are deeply integrated into our daily lives.

How does metal show such a rich form? In the development of new products, how to choose the appropriate process? This involves the two ancient and core methods of metal forming: casting and forging. Although modern technology is changing with each passing day, most of them are still based on this, through the operation of various mechanical equipment to replace human operation.

Casting, with its advantages of almost unlimited shape, raw material type and size, is particularly suitable for the manufacture of objects with complex inner cavity shapes. Its common execution methods include sand casting, dewaxing, gravity, centrifugal and pressure casting, etc., with a wide variety. Although castings have high hardness, their surface fineness and mechanical properties are relatively poor, and the scrap rate is high. However, its equipment investment is relatively low, and waste recycling and remanufacturing is also relatively easy.

With the advent of the industrial age, machining technology came into being. This technology uses power machinery to perform subtractive processing such as cutting on metal, which significantly improves accuracy and production capacity, and realizes the leap of "machines producing machines". Among them, traditional equipment such as lathes, milling machines, boring machines, and CNC or multi-axis processing machines combined with digital technology have become the mainstream of precision industry. Machining can easily achieve extremely high precision and surface quality, and efficiently replicate results. It is especially suitable for small-scale production of high-precision products or parts, and reducing surface treatment costs.

However, machining is difficult to compare with casting or stamping processes in terms of production efficiency. It is more suitable for the forming of physical objects with high tolerance requirements, such as equipment parts, molds, or metal sofa legs with simple appearance but exquisite positioning. In addition, machining is also suitable for early proofing development, because its piece-by-piece processing characteristics can flexibly respond to various needs.

Spinning, as a process that uses manual or machine-driven cutter wheels and tools to push metal sheets into rotating molds, has been largely replaced by mature stamping technology today, but it still has its unique advantages. Spinning objects have strong mechanical properties, and the blanks are highly stretched and not easy to tear. At the same time, the mold cost is low and the material and machine requirements are low, which is suitable for production with many varieties but small batches.

Stamping technology, as one of the core technologies for mass production of modern metal products, mainly includes punching, bending and extension. Stamping applies pressure to the sheet through the upper and lower dies to complete operations such as deformation, truncation or joining. This technology is widely used in sheet metal components for bending, punching, cutting and pressing out edges to increase structural strength, and can even directly punch out decorative patterns. Stamping parts are light and rigid, with fast mass production and uniform quality, which is especially suitable for large-scale and single-type production needs.

In summary, as one of the most important raw materials in the industrial age, metal's forming process involves many details and technological developments. From casting, forging to machining, spinning and stamping technology, each process carries the crystallization of human wisdom and technology. The development of metal technology has not only promoted the process of industrialization, but also brought countless conveniences and beauty to our daily life.