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The characteristics of sheet metal process (sheet metal fabrication process)

Mar 12,21

The characteristics of sheet metal process (sheet metal fabrication process)
  
Sheet metal is a kind of comprehensive cold processing technology for metal sheet, including shear, punching/cutting/composite, folding, welding, riveting, splicing, forming, etc.Its distinctive feature is the same thickness of the same part.Sheet metal processing is called sheet metal processing.Specific for example, the use of boards to make chimneys, iron barrels, oil tank can, ventilation pipes, elbow size, day garden place, funnel, etc., the main process is shearing, bending buckle edge, bending, welding, riveting, etc。

1.Sheet metal processing power density: workpiece absorption sheet metal processing temperature rapidly rising and melting or vaporization, even if the melting point is high, high hardness and brittle materials (such as ceramics, diamond, etc.) can also be used sheet metal processing;
2, sheet metal processing beam is easy to control: easy to be combined with precision machinery, precision measurement technology and electronic computer, to achieve a high degree of automation and achieve high processing accuracy;
3, sheet metal processing convenient and flexible: in the harsh environment or other people are difficult to approach the place, can be used for sheet metal processing robot.
4.sheet metal processing and wide applicable scope: sheet metal processing of beam divergence Angle is less than 1 mm arc, spot diameter can be small to micron, time can be short to nanosecond and picosecond, at the same time, large sheet metal processing of continuous output power to kw to 10 kw level again, because a lot of welding method used in industrial production, according to the characteristics of the welding process can be divided into three categories.
5.Fusion welding: the common characteristic of this kind of welding method is that the joint of the welding parts is heated to the melting state by local heating method, and the welding parts are fused with each other and condensed together.Common arc welding, gas welding belongs to this category.
6. pressure welding: the common characteristic of this kind of welding method is that, whether the welding is heated or not, certain pressure is applied to make the two bonding surfaces close contact, promote the nodular effect between atoms, so as to obtain the firm link of the two weldments.Resistance welding and friction welding belong to this category. 
7.brazing: it has similarities with fusion welding, but also can obtain a strong link, but there is an essential difference between the two.In this square method, the solder with a lower melting point than the solder is heated together with the solder, so that the solder melts, while the solder itself does not melt. The liquid solder is used to wet the solder, fill the gap of the joint, and diffuse with the solder to realize the combination with the solid metal to be welded, and the condensation is connected with each other.Such as soldering, brazing, etc.

 
8.fusion welding: the common characteristic of this kind of welding method is that the joint of the welding parts is heated to the melting state by local heating method, and they fuse with each other and are combined with each other after condensation.Common arc welding, gas welding belongs to this category.
9.pressure welding: the common characteristic of this kind of welding method is that, whether the welding is heated or not, certain pressure is applied to make the two bonding surfaces close contact, promote the nodular effect between atoms, so as to obtain the firm link of the two weldments.Resistance welding and friction welding belong to this category. 
10.brazing: it has similarities with fusion welding, but also can obtain a strong link, but there is an essential difference between the two.In this square method, the solder with a lower melting point than the solder is heated together with the solder, so that the solder melts, while the solder itself does not melt. The liquid solder is used to wet the solder, fill the gap of the joint, and diffuse with the solder to realize the combination with the solid metal to be welded, and the condensation is connected with each other.Such as soldering, brazing, etc.