Compared to very short, the machine has enough relative stop time, the heat will be diffused through the workpiece matrix to the outside. Therefore, the workpiece is processed parts will not have heat focus. Although the heating of the workpiece is almost room temperature, the temperature of the electrode tip can reach around 10000°C due to the instantaneous melting.
Laser welding machine is the use of high energy laser pulse to the material in a small area of local heating, laser radiation energy through the heat conduction to the internal diffusion of the material, the material after melting to form a specific molten pool to achieve the purpose of welding.
Ii. Characteristics
Cold welding machine
1. reasonable design, free adjustment, according to different metal materials can choose different discharge frequency, in order to achieve the best repair effect.
2. The heat affected area is small, and there is no heat input during the instant process of cladding, so there is no deformation, edge bite and residual stress. No local annealing is generated and no re-heat treatment is required after repair.
3. Minimal welding repair impact. In the welding repair process, the cold welder can overcome the impact of ordinary argon arc welding on the periphery of the workpiece. There is no allowance for the workpiece processing surface can also be assured to repair.
4. high welding strength: due to the full penetration of the workpiece surface material to produce a strong bonding force.
5. easy to carry, light weight, 220V power supply, no workpiece environmental requirements.
Laser welding machine
1, the thermal influence range is small, most of the workpiece will not deformation
2, fast welding speed, improve production efficiency
3, the laser beam can be focused in a small area, can be welded small and closely spaced parts
4, can weld a wide range of types, can also be digital or computer control
5, can be welded with different physical properties (such as different resistance) of the two metals
6, can switch the device to transmit the laser beam to a number of workstations, easy to achieve automatic mass production.
The above is the difference between laser welding machine and cold welding machine. These two kinds of equipment have their own characteristics. Which one to choose or according to the needs of their own manufacturers.
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