Painting and classification of finish paint
MFG NewsTopcoat spraying After finishing the spraying of intermediate primer and grinding and finishing, the topcoat can be sprayed. The gloss, brightness and good decoration of the coated surface are provided by the finish coat. The quality of the whole coating work is reflected by the finish coat. Therefore, the finish coat spraying is the most…
After bending, the end face of the workpiece bulges or is uneven
Technology NewsCause: when bending, the outer surface of the material is pulled in the circumferential direction to produce shrinkage deformation, and the inner surface is pressed in the circumferential direction to produce elongation deformation, so the bending end face bulges along the bending direction. terms of settlement: The punch and die shall have sufficient pressure at…
Determination of stamping die
Technology NewsThe so-called punching direction refers to the direction of the machine pressure on the blank during the die drawing process. Selecting the correct stamping direction is the first problem encountered in determining the drawing scheme. It not only determines whether a satisfactory process part can be drawn, but also affects the amount of process supplement…
Laser welding technology
Technology NewsLaser welding can be divided into pulse welding and high-power continuous welding. Laser welding can make a single weld obtain high-density energy from the laser source. High-speed welding has little effect on the heating and deformation of the weld. The welded joint has high performance and quality, and the weld size of laser welding can…
History of explosive welding
Technology NewsExplosive welding was first put forward by Carl in 1944. He was the first to observe the solid-state welding of materials caused by explosive detonation under high-speed collision, so he put forward the idea of using explosion and ultrasonic technology to weld various metals together. Then philipchuk V of the United States introduced the explosive…
Difficulties in sheet metal stretch forming
Technology News1) In order to ensure the accuracy of the part surface, it is necessary to adopt deep drawing forming with many bulging components, so the thinning amount in the top area of the part arc is the largest, and the thickness thinning amount is easy to exceed the tolerance; 2) The springback after deep drawing…
Analysis of sheet metal stamping process
Technology NewsStamping plays a very important role in the mechanical processing industry. It is widely used in aerospace manufacturing, automobile panel manufacturing and other industries. The output value of stamping parts also accounts for a large proportion in the whole sheet metal processing industry. Taking aerospace and automobile panel parts as examples, this kind of sheet…
Reduce the deformation of sheet metal welding with the help of external force
MFG News1 water cooling block Many techniques can be used to control the welding deformation of special welding workpieces. For example, in thin plate welding, the use of water-cooled blocks can take away the heat of the welded workpiece. The copper pipe is welded to the copper fixture by brazing or tin welding, and the circulating…
Several key technologies of CO2 laser cutting?
Technology NewsThe main related technologies are as follows One is the automatic focusing system technology. The smaller the focus depth is, the smaller the diameter of the laser direct focus is. Therefore, it is very important to control the position of the focus relative to the surface of the cut material. Second, cutting and perforation technology.…
Necessary for making sheet metal! Detailed explanation of hot rolling steel characteristics
Technology NewsProduct Name: hot rolling steel Code: SPHC, HRS Hardness: hRb1 / 2H = 74 ~ 89 1 / 4H = 65 ~ 80 1 / 8h = 50 ~ 71 H = above 89 Tensile strength: above 41 ~ 52kgf / mm. Material thickness: 1.4 ~ 6.0mm. Material code above 6mm SS41 Material width: the…