When it comes to sheet metal machined surfaces and laser cuttin

• Posted by Lambert Polly August 25, 2021 - Filed in Other - #sheet metal forming  - 1,021 views

  To paint the surface of sheet metal fabrication, there are generally four steps: first treat the base course, then apply a layer of primer, then apply a layer of intermediate paint, and finally apply the surface course.
  
  1. The foundational treatment. The product base course of sheet metal processing, such as sand blasting, phosphating, and so on, must be derusted prior to further processing.
  
  2. A primer on the subject. When it comes to sheet metal processing, the epoxy zinc rich primer that is used is mostly used to protect steel structures and steel products from rust. The film has excellent physical and chemical properties, is simple to construct, and provides excellent supporting performance. The main constituents are epoxy resin, epoxy curing agent, zinc powder, antirust pigment, additives, and organic solvents, among other things.
  
  Intermediate paint (number three). Sheet metal processing products are coated with epoxy micaceous iron intermediate paint, which, in conjunction with epoxy zinc rich primer, serves as a transition layer between the two anti-corrosion coatings over a long period of time. Its primary function is to improve the sealing and anti-corrosion properties of composite coatings, but it can also be used as an anti-corrosion and anti-rust primer as well. The film is strong and tough, and it has excellent adhesion and sealing properties, as well as good compatibility with the front and rear coatings of the vehicle. Its constituents include, for example, epoxy resin and curing agent, yunmu iron oxide and antirust pigment.
  
  4. Bring it to a close. When it comes to the surface course, there are numerous options available, including epoxy asphalt finish, chlorinated rubber finish, acrylic and polyurethane finish, fluorocarbon finish, and others.
  
  Laser cutting technology is used in the sheet metal processing industry.
  In the world of metal processing, sheet metal processing accounts for one-third of all activity. It has a wide range of applications and can be found in almost every industry and field of endeavor. It is nothing more than laser cutting, plasma cutting, flame cutting, plate shears, stamping, and other similar processes for thin sheet metal forming (metal sheet thickness less than 6mm) if the cutting process is used. Laser cutting is one of these techniques that has risen to prominence and flourished in recent years. In the field of metal plate cutting, precise and effective cutting can be accomplished on plates ranging in thickness from microns to tens of millimeters.
  
  The high-power density laser beam is used to irradiate the material to be cut, causing the material to be rapidly heated to the vaporization temperature and evaporated, resulting in the formation of holes in the material. This is known as laser cutting, and it occurs as the laser beam moves across the material, creating holes that continuously form slits of extremely narrow width (such as about 0.1mm) that allow the material to be completely cut. Laser cutting is extremely efficient, has a high energy density, and is extremely flexible. In terms of precision, speed, and efficiency, it is the most suitable option for the sheet metal cutting industry. Laser cutting is a precision machining method that can cut almost any material, including thin metal plates. It can cut in two dimensions or three dimensions, depending on the material being cut. The laser has the ability to focus into a very small spot, making it ideal for micro and precision machining applications such as micro slitting and micro hole drilling. Furthermore, it does not require the use of cutting tools during the processing process, which is classified as non-contact processing and does not result in machining deformation. Some traditional difficult or low-quality plates can be easily solved after laser cutting; in particular, laser cutting has an unassailable position in the cutting of some carbon steel plates, which is particularly important.