Needle laser peening device
A laser shot peening and needle type technology, which is used in heat treatment process control, heat treatment equipment, manufacturing tools, etc., can solve the problems of complex deformation law of laser variable incident angle, no control of deformation, and difficulty in deformation control. Achieve the effect of avoiding instability, high degree of freedom, and solving large deformation
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specific Embodiment 1
[0030] Shot peening of narrow gap parts: Paste the absorbing layer 23 on the surface to be impacted of the part 4 to be impacted, and clamp the focusing cavity 1 on the manipulator 5 through the holding device 8, and the manipulator 5 adjusts the position of the needle-type light guide tube 2, and the It is inserted into the narrow part of the part 4 to be impacted. The water coating robot 3 adjusts the angle of the water flow 10 to form a water film 21 of a certain thickness on the surface to be impacted. The airflow 15 enters from the cooling gas inlet, enters the pin-type light guide tube 2 through the focusing cavity, and guides the airflow 15 to the surface of the focusing mirror 22 through the air channel 18 in the air guide end cover 20 to form a protective gas film. The laser light 7 is introduced into the focusing cavity 1 through the optical fiber inlet 13, and after being modulated, a parallel beam is formed and introduced into the needle light guide tube 2. After b...
specific Embodiment 2
[0031] Hole impact: as Figure 4As shown, the diameter of the hole 24 is 5cm, deep 10cm, the diameter of the needle light guide 2 is 1.5cm, and the length is 15cm, and the diameter of the gas outlet end cover 20 is 2cm. At first, the absorbing layer 23 is sprayed in the hole 24. The water coating robot 3 adjusts the angle of the water flow 10 so that the water flow 10 flows along the hole wall. The manipulator 5 adjusts the position of the needle light guide tube 2 so that the lumen 14 is parallel to the hole wall. The manipulator 5 drives the needle light guide tube 2 to insert At the bottom of the hole 24, the hollow shaft motor 9 controls the rotation speed of the needle catheter to be 2mm / s. The laser 7 is focused by the focusing cavity 1 to form a laser beam with a diameter of 4 mm, which is reflected by the mirror 16 in the needle light guide 2 and then irradiates the hole wall to form a laser impact. The manipulator 5 controls the lifting of the needle light guide 2 , ...
specific Embodiment 3
[0032] Laser Shocking of Concealed Thin-Walled Variable-Section Surfaces
[0033] Firstly, the deformation of thin-walled parts is estimated by computer and the laser shock parameters are optimized according to the geometric model of the shock part. When shocking, such as Figure 5 As shown, the laser is emitted from the resonant cavity, reflected by the mirror 26, emitted through the preamplifier, the first-stage amplifier, and the second-stage amplifier, and a small part of the laser energy is reflected by the beam splitter 25 to the energy meter, and the energy meter transmits the data to the computer To calculate the emitted laser energy, the computer continuously controls the preamplifier, first-stage amplifier, and second-stage amplifier to adjust the laser energy through the prefabricated laser power variation law. If the impact area is too thin and the laser energy is reduced and it is difficult to generate sufficient residual compressive stress, a special wave-absorbi...
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