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Powerful spinning and laser shock peening combined device and machining method for thin-wall part

A technology of laser shock strengthening and powerful spinning, which is used in the fields of metal material extrusion and manufacturing, composite process manufacturing, and achieves the effects of improving plasticity and strength, offsetting tensile stress, and inhibiting crack initiation and expansion.

Pending Publication Date: 2021-12-14
SUZHOU CHIEN SHIUNG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thereby significantly improving the material forming accuracy and performance

Method used

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  • Powerful spinning and laser shock peening combined device and machining method for thin-wall part
  • Powerful spinning and laser shock peening combined device and machining method for thin-wall part
  • Powerful spinning and laser shock peening combined device and machining method for thin-wall part

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Effect test

Embodiment 1

[0036] As shown in the figure, a composite device for strong spinning and laser shock strengthening of thin-walled parts includes a mold 1, a blank workpiece 2, a top frame 3, a laser device 4 and a spinning equipment 5, and the blank workpiece 2 is set on the mold 1 One side of the mold 1, the top frame 3 is arranged on the other side of the blank workpiece 2 relative to the mold 1, the laser device 4 and the spinning equipment 5 are arranged on one side of the mold 1, and the laser device 4 is provided with Laser head, and match with mold 1.

[0037] The laser device 4 in this embodiment includes an automatic control workbench for controlling the movement of the laser head and a laser head, and the laser head is connected with the automatic control workbench. The automatic console adopts KUKA KR30-3 robot to realize motion control with multiple degrees of freedom in space.

[0038] In the composite processing method of strong spinning and laser shock strengthening of thin-w...

Embodiment 2

[0047] As shown in the figure, a composite device for strong spinning and laser shock strengthening of thin-walled parts includes a mold 1, a blank workpiece 2, a top frame 3, a laser device 4 and a spinning equipment 5, and the blank workpiece 2 is set on the mold 1 One side of the mold 1, the top frame 3 is arranged on the other side of the blank workpiece 2 relative to the mold 1, the laser device 4 and the spinning equipment 5 are arranged on one side of the mold 1, and the laser device 4 is provided with Laser head, and match with mold 1.

[0048] The laser device 4 in this embodiment includes an automatic control workbench for controlling the movement of the laser head and a laser head, and the laser head is connected with the automatic control workbench. The automatic console adopts KUKA KR30-3 robot to realize motion control with multiple degrees of freedom in space.

[0049] In the composite processing method of strong spinning and laser shock strengthening of thin-w...

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Abstract

The invention discloses a powerful spinning and laser shock peening combined machining method for a thin-wall part. The method comprises the following steps that (1) the outer surface of a blank workpiece is peened, namely laser shock peening is conducted on the blank workpiece through an absorption-layer-free laser shock peening technology; and (2) spinning machining is conducted on the workpiece through mutual cooperation of a spinning wheel and a mold in spinning equipment, and cylindrical or conical large-deformation forming of the metal thin-wall workpiece is achieved. The invention discloses the powerful spinning and laser shock peening combined machining method. The surface of a material is heated and softened by adopting a laser heat effect; the laser force impact effect is adopted to achieve grain refinement, promote part plastic deformation and inhibit springback of the part after spinning, a residual compressive stress layer is introduced, the outer wall tensile stress in the spinning process is counteracted, and initiation and extension of microcracks in the material are inhibited; and forming machining of the thin-wall workpiece subjected to laser shock peening treatment is achieved through the powerful spinning technology, and therefore the material forming precision and performance are remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of extrusion molding processing and manufacturing of metal materials, in particular to the field of composite processing and manufacturing, and specifically discloses a composite device for strong spinning and laser shock strengthening of thin-walled parts and a processing method thereof. Background technique [0002] Power spinning technology is a spinning forming technology that can deform and thin metal materials. It has the characteristics of high strength, high hardness, high precision and low weight. It is widely used in the field of aerospace manufacturing parts manufacturing. At the same time, powerful spinning can ensure the integrity of structural components, reduce the workload of manual shape correction, and improve material strength. However, during the spinning process, due to the extrusion effect, the parts undergo severe plastic deformation, which induces defects such as wrinkling, cracking, ...

Claims

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Application Information

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IPC IPC(8): B21D22/16C21D10/00C22F3/00
CPCB21D22/16C21D10/005C22F3/00
Inventor 纪飞飞周晓刚郑爱权许红伍
Owner SUZHOU CHIEN SHIUNG INST OF TECH
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