A method for laser shock peening (LSP) a workpiece is disclosed. The method may include identifying a geometry of the workpiece, determining a number of applications of LSP upon a first side and a second side of the workpiece, and sequencing the applications among the first side and the second side to minimize distortion.

The present invention relates to a device as well as a method for the additive manufacture of components by deposition of material layers by layer-by-layer joining of powder particles to one another and/or to an already produced pre-product or substrate, via selective interaction of the powder particles with a high-energy beam, wherein, for smoothing a surface of the component being produced running crosswise to the deposited material layers in between the deposition of two layers of the component, the complete edge region of the last layer that is applied and that runs along a surface of the component being produced is compacted in a direction of action that has a directional component parallel to the build-up direction of the layers, and/or at least one edge region (19) of a surface of the component (3′) is also compacted.

A method for processing surfaces of metal materials, and to a method for roughening a surface of a metal material by using a laser shock forming technology and an application thereof. According to the method, based on a pulse-laser-induced force effect, a micron-imprint mold and a nano-imprint mold are first prepared, and then the molds are used as a template to present surface microstructures of the imprint molds on a surface of a to-be-processed material. The method is simple and efficient. In addition, compared with a conventional method, a micron-structures and nano-structures can be quantitatively prepared on a surface of a metal material, and the surface roughness and the preparation scope are accurate and controllable and can be pre-designed.

A method for processing surfaces of metal materials, and to a method for roughening a surface of a metal material by using a laser shock forming technology and an application thereof. According to the method, based on a pulse-laser-induced force effect, a micron-imprint mold and a nano-imprint mold are first prepared, and then the molds are used as a template to present surface microstructures of the imprint molds on a surface of a to-be-processed material. The method is simple and efficient. In addition, compared with a conventional method, a micron-structures and nano-structures can be quantitatively prepared on a surface of a metal material, and the surface roughness and the preparation scope are accurate and controllable and can be pre-designed.

A laser shock peening apparatus for the surface of a workpiece, said apparatus comprising a resonant cavity. When said apparatus is used to conduct laser shock peening, because of the presence of the resonant cavity, shock waves that would typically escape outward may instead be utilized, and composite shock waves may be formed as a result of the wave reflection and convergence effects of the resonant cavity. Said waves can then be used on the surface of a workpiece twice or multiple times, thereby greatly increasing energy utilization rates. In addition, a fluid-based confinement layer is limited to the inside of the resonant cavity and has a fixed shape, thereby effectively solving the problems of the poor stability of a fluid-based confinement layer and the difficulty with controlling the thickness of such a confinement layer.

A laser shock peening apparatus for the surface of a workpiece, said apparatus comprising a resonant cavity. When said apparatus is used to conduct laser shock peening, because of the presence of the resonant cavity, shock waves that would typically escape outward may instead be utilized, and composite shock waves may be formed as a result of the wave reflection and convergence effects of the resonant cavity. Said waves can then be used on the surface of a workpiece twice or multiple times, thereby greatly increasing energy utilization rates. In addition, a fluid-based confinement layer is limited to the inside of the resonant cavity and has a fixed shape, thereby effectively solving the problems of the poor stability of a fluid-based confinement layer and the difficulty with controlling the thickness of such a confinement layer.

Joining methods and corresponding structures are disclosed. In some instances, a method for joining two or more components may include generating a shockwave in a first component to form a jet of a material of the first component directed towards a second component. The jet may penetrate the second component to connect the first component with the second component. Articles of pre-joined and joined components are also described.

Joining methods and corresponding structures are disclosed. In some instances, a method for joining two or more components may include generating a shockwave in a first component to form a jet of a material of the first component directed towards a second component. The jet may penetrate the second component to connect the first component with the second component. Articles of pre-joined and joined components are also described.

The present invention relates to the technical field of material surface peening, and more particularly to an energy compensated equipower density oblique laser shock method. The method includes: acquiring a radius of curvature of a peening region of a part to be processed, and judging a range of a laser incident angle; determining laser parameters, such as laser pulse width, a spot diameter, and required laser energy under a vertical incidence condition; calculating the required laser energy at the minimum incident angle, and judging whether the energy falls within the technical indexes of a laser; and performing laser shock peening on the part by pulse laser beams with different energies. According to the present invention, the laser power or energy is compensated according to changes in the incident angle and the radius of curvature of the part to be processed.

The present invention relates to the technical field of material surface peening, and more particularly to an energy compensated equipower density oblique laser shock method. The method includes: acquiring a radius of curvature of a peening region of a part to be processed, and judging a range of a laser incident angle; determining laser parameters, such as laser pulse width, a spot diameter, and required laser energy under a vertical incidence condition; calculating the required laser energy at the minimum incident angle, and judging whether the energy falls within the technical indexes of a laser; and performing laser shock peening on the part by pulse laser beams with different energies. According to the present invention, the laser power or energy is compensated according to changes in the incident angle and the radius of curvature of the part to be processed.