Metal fabrication(Metalworking,Metal processing)refers to the production activities in which humans process materials with metallic properties composed of metallic elements or mainly composed of metallic elements. The progress of human society is closely related to the processing and application of metal materials. Brass was smelted more than 6,000 years ago, simple bronze tools were made more than 4,000 years ago, and meteorite iron was used more than 3,000 years ago. Weapons, China has been smelting pig iron in the Spring and Autumn Period more than 2,500 years ago, more than 1,800 years earlier than Europe. In the 18th century, the development of the iron and steel industry became an important content and material basis for the Industrial Revolution. Metalworking, referred to as metalworking, is a process technology that processes metal materials into objects, parts, and components, including large parts such as bridges and ships, and even subtle components of engines, jewelry, and watches. Metalworking is widely used in different fields such as science, industry, art, handicraft and so on.
Metal fabrication(Metalworking,Metal processing) is a process by which metal can change its size, shape or some properties so that it can be used in other applications. Metal can be processed by hand or by machine, and the choice of metal processing depends on its subsequent use.
The main advantage of using machinery for Metal fabrication(Metalworking,Metal processing) is increased precision and processing speed. When machines replace human hands, machining errors can be minimized.
Mechanical Metal fabrication(Metalworking,Metal processing) can be divided into:
1. Use predefined tool geometries
♦ Milling
♦ Sawing
2. Metal fabrication(Metalworking,Metal processing) without predefined cutting edges
♦ sanding
3. Metal fabrication(Metalworking,Metal processing) with Free Blades
♦ Grinding
♦Polish
♦ Honing Fourth, do not use the blade for processing
♦Ultrasonic processing
♦ Plasma processing
♦Laser processing
♦Water jet processing
Each of the above Metal fabrication(Metalworking,Metal processing) techniques has its advantages and disadvantages. The choice of Metal fabrication(Metalworking,Metal processing) technology depends to a large extent on the future use of the metal being machined, i.e. precision and machining quality.
On the other hand, hand Metal fabrication(Metalworking,Metal processing) can be done using hand tools such as blades, sandpaper, etc. This Metal fabrication(Metalworking,Metal processing) method requires a lot of labor costs.
Metal fabrication(Metalworking,Metal processing) can be divided into:
♦ Handling shapeless materials - e.g. waste disposal
♦No material removal during Metal fabrication(Metalworking,Metal processing) - eg casting
♦ Machining by removing material - e.g. turning
♦ Metal fabrication(Metalworking,Metal processing) by joining - e.g. welding
♦Metal protection - eg tinting
♦ Metal fabrication(Metalworking,Metal processing) by changing properties - e.g. hardening
Hot Metal fabrication(Metalworking,Metal processing)
Hot Metal fabrication(Metalworking,Metal processing) means that the effect of heat on a metal changes its properties and thus affects the microstructure.
The most common metal to be heat treated is steel, and the primary reason for the treatment is the increase in strength first, followed by the increase in toughness and remodelability.