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Laser welding impeller: characteristics and main advantages of laser welding imp
The use of laser welding impeller technology makes up for the shortcomings of traditional resistance welding. The line sealing rate between the front and rear cover of the impeller and the blades can reach almost 100%. The flow channel is smooth and precise to minimize the hydraulic loss of the flow channel, ensuring the efficient operation of the pump to the greatest extent and reducing customer operating costs.
Impeller refers to the wheel disc equipped with moving blades, and is a component of the impulse steam turbine rotor. It also refers to the general name of the wheel and the rotating blades installed on it. Also refers to the general name of the wheel and the rotating blades installed on it.
The blade shape of the centrifugal fan impeller includes veneer type, arc type and airfoil type. Airfoil blades have good aerodynamic characteristics, high efficiency, good strength, and high rigidity. The disadvantage is that the manufacturing process is complicated, and when the gas with high dust concentration is transported, the blade is easy to wear. After the blade is worn out, impurities enter the inside of the blade, causing the impeller to lose balance and cause vibration. Flat-shaped straight blades are simple to manufacture, but have poor flow characteristics. Compared with airfoil blades, flat-curved backward blades have lower efficiency near the high most efficient point, and the efficiency at other operating conditions is quite close.
The water pump impeller automatic laser welding machine adopts a brand-new thinking technology, the welding speed is very fast, the welding accuracy is better, the beam mode is better, it can realize a new automatic welding positioning, and the production efficiency is higher than other laser welding. Several times. This laser welding machine uses an automatic platform, a rotating table and an automatic lifting laser beam. Based on the software of the laser welding machine, it can be modified freely and the operation method is simple.
Laser welding impeller model features:
The X, Y, Z and D axes of the welded workpiece are driven by stepping, which meets the needs of large strokes;
High positioning repeatability;
Any trajectory of welding point, straight line, circle, ellipse and square plane can be used;
high-power laser power supply, to meet the 24-hour mass production;
A four-axis linkage control system tailored specifically for laser welding, stable performance and easy to use.
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The main advantages of laser welding impeller:
(1) The heat input can be reduced to the minimum required amount, the metallographic change range of the heat-affected zone is small, and the deformation caused by heat conduction is also the lowest.
(2) The welding process parameters of 32mm plate thickness single pass welding have passed the verification, which can reduce the time required for thick plate welding and even save the use of filler metal.
(3) There is no need to use electrodes, and there is no concern about electrode contamination or damage. And because it is not a contact welding process, the wear and deformation of the machine tool can be minimized.
(4) The laser beam is easy to focus, align and be guided by optical instruments. It can be placed at an appropriate distance from the workpiece, and can be re-guided between tools or obstacles around the workpiece. Other welding rules are subject to the above-mentioned space limitations. And can't play.
(5) The workpiece can be placed in a closed space (under vacuum or internal gas environment under control).
(6) The laser beam can be focused on a small area and can weld small and closely spaced parts.
(7) There is a wide range of solderable materials, and various heterogeneous materials can also be joined to each other.
(8) It is easy to automate high-speed welding, and it can also be controlled by digital or computer.
(9) When welding thin materials or thin-diameter wires, there is no trouble of melting back like arc welding.
(10) It is not affected by the magnetic field (arc welding and electron beam welding are easy), and can accurately align the weldment.
(11) Two metals with different physical properties (such as different resistance) can be welded
(12) No vacuum or X-ray protection is required.
(13) can switch the device to transmit the laser beam to multiple workstations.
