Device and method for shocking and strengthening thin wall part edges through lasers

A technology of laser shock strengthening and thin-walled parts, which is applied in the direction of auxiliary devices, laser welding equipment, auxiliary welding equipment, etc., can solve the problems of uneven power density of spot overlap and difficulty in obtaining uniform residual compressive stress on the surface of the workpiece, and achieve The effect of low cost, shortened working hours and convenient use

Inactive Publication Date: 2014-11-19
DALIAN UNIV OF TECH +1
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Problems solved by technology

[0006] According to the problem of spot overlap and uneven power density caused by the oblique impact mentioned above, it is difficult to obtain uniform residual compressive stress on the surface of the workpiece, and the hidden danger of residual tensile stress on the surface of the part is difficult to eliminate technical problems. Cost, device and method suitable for laser shock strengthening of thin-walled parts on complex curved surface

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  • Device and method for shocking and strengthening thin wall part edges through lasers
  • Device and method for shocking and strengthening thin wall part edges through lasers
  • Device and method for shocking and strengthening thin wall part edges through lasers

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Embodiment Construction

[0030] A device for laser shock hardening the edge of a thin-walled part, including a surface path replication system and a laser shock system. like figure 1 , 2 As shown, the surface path replication system includes a longitudinal support 1, an abutment device 2, a control rod 3, a control box 4, a fixed support 5 and a workbench 6; the longitudinal support 1 includes a longitudinal support I11 and a longitudinal support II12, the The longitudinal support I11 and the longitudinal support II12 are respectively fixed on the horizontal guide rail I13 and the horizontal guide rail II14. The longitudinal support 1 is fixed by connecting the bottom of the longitudinal support 1 to the screw rod 15 arranged in the horizontal guide rail. The motor on one side of the horizontal guide rail 16 drives the screw rod 15 to rotate so as to realize the horizontal movement of the longitudinal support 1. During operation, the motors 16 on the horizontal guide rail I13 and the horizontal guide...

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Abstract

The invention discloses a device and method for shocking and strengthening thin wall part edges through lasers. The device comprises a surface path copy system and a laser shock system. The surface path copy system comprises a longitudinal support, an abutting device, a control rod, a control box, a fixing support and a workbench. The laser shock system comprises a pathway support, a motor set, a laser head and a shock workbench for placing parts to be shocked. According to the device and method for shocking and strengthening the thin wall part edges through the lasers, a theory of similar figures is mainly utilized, the surfaces of the parts to be shocked are tightly attached to the abutting device, the surface path copy system transmits the movement loci of attached blocks in the abutting device to the laser shock system, the movement loci of laser spots are kept pace with the closed blocks by adjusting movement of the laser head, and thus the purpose that laser shock and strengthening are conducted on the thin wall part edges is achieved. The device and method have the advantages of being low in cost, easy to operate and the like, and laser vertical incidence can be guaranteed.

Description

technical field [0001] The invention relates to the field of laser shock strengthening, in particular to a device and method for laser shock strengthening the edge of a thin-walled part. Background technique [0002] Turbomachinery such as large blowers, compressors, and aero-engines all have blades with complex curved surfaces, and the performance and service life of the blades directly determine the life and quality of the complete machine. During the working process, the edge of the blade is easily worn and micro-cracks are formed. Since the thickness of the edge of the blade is relatively thin, the cracks at the edge are easy to spread, resulting in rapid failure of the blade and greatly reducing the life of the blade. [0003] Laser shock strengthening technology can easily introduce residual compressive stress on the surface of the workpiece, thereby inhibiting fatigue damage such as microcracks on the surface of the workpiece, and greatly prolonging the service life o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/352B23K26/08
CPCB23K26/0876B23K26/356B23K37/0435
Inventor 张永康卢轶吴东江邓德伟鲁金忠吴俊峰
Owner DALIAN UNIV OF TECH
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