11 results about "Laser burn" patented technology

The invention relates to the technical field of aero-engine maintenance, and discloses a maintenance method for reducing the failure rate of aluminum element content exceeding of lubricating oil of an accessory casing of an aero-engine so as to reduce the failure rate of aluminum element content exceeding of the lubricating oil of the accessory casing of the aero-engine. Comprising the following steps: 1) according to an easy-to-wear area of an aluminum bushing of an accessory casing to be maintained, determining a corresponding area of the aluminum bushing to be strengthened as a laser shock strengthening area, and setting machining allowance; (2) determining a deformation control area and machining allowance of the aluminum bushing to be strengthened; (3) carrying out laser shock peening pretreatment on the aluminum bushing to be subjected to peening processing; and 4) performing laser shock peening on the laser shock peening area of the aluminum bushing to be subjected to peening processing, so that the abrasion loss in the peening area of the aluminum bushing can be reduced by 52%, the spectral aluminum element content of lubricating oil of the accessory casing is reduced by 38.5%, and meanwhile, deformation and laser burn of the aluminum bushing caused by laser shock peening are avoided.

The utility model provides an end cover assembly, an energy storage device and electric equipment. The end cover assembly can prevent laser from burning upper plastic. The end cover assembly comprises a cover plate, a pole, upper plastic, a pressing ring and a welding part. The cover plate is provided with an assembling hole penetrating through the first surface and the second surface. The pressing ring is located on the side, away from the second surface, of the first surface, a pressing ring body of the pressing ring is provided with a matching hole penetrating through the third surface and the fourth surface, and the protruding part of the pressing ring is arranged on the hole wall face of the matching hole. The pole penetrates through the assembling hole and the matching hole, an opening of a groove of the pole is located in the surface, deviating from the first surface, of the pole, the groove penetrates through the peripheral side face of the pole, and the protruding part is installed in the groove and welded to the groove wall face of the groove; the welding part is positioned on one side, facing the fourth surface, of the third surface, is positioned on one side, facing the groove wall surface of the groove, of the protruding part, and is connected to the pole; and the upper plastic cement is positioned on one side, deviating from the fourth surface, of the third surface, penetrates through the assembly hole, is arranged around the pole column and is also positioned between the pole column and the cover plate.

This invention discloses a laser burn-in system, relating to the field of laser burn-in technology. The laser burn-in system includes a burn-in component, a beam-uniforming and expanding module, a photoelectric conversion component, and a power processing module. The burn-in component is connected to the laser. The beam-uniforming and expanding module receives the laser beam and outputs a uniformly diffused beam. The photoelectric conversion component receives the uniformly diffused beam and outputs power to be processed. The power processing module is electrically connected to the photoelectric conversion component and receives the power to be processed and outputs usable power. The technical solution provided by this invention aims to reduce the total energy consumption of laser burn-in by converting the light energy during burn-in into reusable electrical energy, thereby reducing the total energy consumption and cost of burn-in.

The invention discloses a coal ash content detection method and system based on a laser firing technology, and relates to the technical field of coal component analysis and online detection. Generating a local gasification impact index representing coal sample gasification behaviors and a structure instantaneous flexibility response coefficient representing weighing structure response capability; constructing a multi-physical field coupling simulation model by taking the two as input, simulating instantaneous micro-deformation in a laser firing process, and outputting a risk coefficient of a weighing error caused by the micro-deformation by utilizing a regression model; laser parameters are dynamically adjusted according to the risk level, a weighing structure is optimized or detection data is corrected, and disturbance suppression and precision optimization of a detection system are achieved; according to the method, the accuracy, robustness and industrial adaptability of coal ash detection can be effectively improved.

The invention discloses full-automatic laser coordination processing equipment and process for lettering films, and relates to the technical field of laser lettering films, and the full-automatic laser coordination processing equipment comprises a laser cutting main machine, a net-shaped conveying belt, a laser processing unit, an automatic feeding system, an automatic rolling mechanism, a slitting processing unit, a splicing unit and a control system, the net-shaped conveying belt is arranged in the middle of the laser cutting main machine, and the automatic feeding system is installed at one end of the laser cutting main machine and used for achieving feeding, leveling and tension adjusting of lettering film roll materials. According to the full-automatic laser coordination processing equipment for the lettering film, through the action time sequence and operation parameters of the automatic feeding system, the laser processing unit, the slitting processing unit, the splicing unit and the automatic rolling mechanism, feeding, leveling and tension adjustment of lettering film rolling materials, laser burn-out marking, defective product slitting and cutting-off and film material splicing and repairing are conducted, and the full-automatic laser coordination processing equipment for the lettering film is achieved; the problem that traditional processing procedures are dispersed and cannot be processed in a unified and coordinated mode is solved.

The invention discloses a method for forming a deep blind hole by laser sintering. The method comprises the following steps: providing a substrate comprising an outer conductive layer, a dielectric layer and a target conductive layer; forming a copper window on the outer conductive layer to define an opening; forming a first hole wall section in the dielectric layer, and reserving a residual dielectric layer at the hole bottom of the dielectric layer to cover the target conductive layer; and performing a laser firing step to remove the residual dielectric layer and form a second hole wall section to expose the target conductive layer at the bottom of the hole, the first hole wall section and the second hole wall section jointly defining the deep blind hole, the laser firing step including: setting a stacked hole configuration area including a plurality of stacked hole strike points; setting a stacking hole rate according to the center distance between two adjacent stacking hole striking points; laser pulses are sequentially applied to the multiple stacked hole hitting points through the first-section laser independent variable set and the second-section laser independent variable set. Therefore, the machining efficiency of the large blind hole is improved, and the uncertainty of residual materials at the bottom of the hole can be reduced.

The invention relates to the technical field of cigarette laser drilling ventilation rate prediction, in particular to a cigarette laser drilling ventilation rate prediction method based on a multi-channel attention mechanism, which comprises the following steps: acquiring related data of each hole in each drilled cigarette and category information of each drilled cigarette, related data of each hole in each punched cigarette and category information of each punched cigarette are integrated, indication data of each punched cigarette are preprocessed, and the preprocessed indication data of each punched cigarette are input into an AMTA-Net laser punching ventilation rate prediction model for training; and inputting the real-time data I of the indication of each punched cigarette into the trained laser punching ventilation rate prediction model for prediction so as to solve the problem that the ventilation rate is optimized only by adjusting a single parameter or by experience in the prior art. However, the complex interaction among the factors which are difficult to comprehensively capture causes the serious difference of the hole forms in the laser burning process, and indirectly causes the insufficient control precision of the ventilation rate.

The application provides a kind of unmanned laser weeding method based on machine vision, comprising: determining the weed body corresponding to the target area and the laser impact point, and the laser action time corresponding to each laser impact point;According to the laser focusing distance and the laser angle deflection amplitude corresponding to the trajectory segment between each adjacent two laser impact points, the laser emission power corresponding to the trajectory segment between each adjacent two laser impact points of laser emitter is determined;Control laser emitter to carry out laser impact on the laser burning trajectory formed by a plurality of laser impact points with the laser action time and the laser emission power corresponding to each laser impact point;After laser emitter carries out laser impact on weed body, according to the pixel area and the average gray difference of the image corresponding to weed body before and after laser impact, the laser weeding result of weed body is determined, to realize accurate verification and secondary supplementary strategy of weeding result, improve weeding accuracy and success rate.

The application provides a laser cutting mechanical arm auxiliary device and relates to the field of laser cutting.The laser cutting mechanical arm auxiliary device comprises a device body, the top end of the device body is equipped with a mechanical arm, the outside of the mechanical arm is provided with a purification mechanism, and the purification mechanism comprises a purification box, a communication pipe and a suction ring.The laser cutting mechanical arm auxiliary device is fixedly equipped with the mechanical arm through the device body, the debris and smoke generated by laser burning are sucked through the suction ring, the waste gas sucked by the suction ring is transported into the purification box through the communication pipe, the waste gas is purified and filtered, the debris and particulate matters in the waste gas are filtered and intercepted, the air purification effect is improved, the metal plate is transported through the conveying belt, the metal plate can be transported above the material loading table, the metal plate after cutting can be transported out of the material loading table, and the efficiency of laser cutting of the metal plate is improved.

The embodiment of the invention relates to a VCSEL laser chip cutting method and a VCSEL laser chip, and the method comprises the steps: providing a VCSEL laser chip which comprises a substrate, a bottom reflector structure, an active layer, a plurality of top reflector structures arranged at intervals, and passivation layers located in channels between the adjacent top reflector structures, carrying out roughening treatment on the passivation layer to form a plurality of sunken regions on the passivation layer; spin-coating a protective adhesive layer on the roughened passivation layer; cutting the VCSEL laser chip coated with the protective adhesive layer along a direction perpendicular to the channel by using laser to expose the substrate; wherein a protective layer is at least partially reserved on the side wall of the cut VCSEL laser chip. By applying the scheme of the invention, the side corrosion solution cannot permeate into the surface of the chip through the laser burning separation area during side corrosion, so that side corrosion abnormity is avoided, and the product yield is improved.

The invention discloses a method for forming a deep blind hole. The method comprises the following steps: providing a substrate comprising an outer conductive layer, a dielectric layer and a target conductive layer; forming a copper window on the outer conductive layer to define an opening on the surface of the substrate, and exposing the dielectric layer at the copper window; aligning a mechanical drill bit with the copper window, performing mechanical blind drilling in the dielectric layer to form a first hole wall section extending along the hole depth direction, and reserving a residual dielectric layer at the hole bottom of the dielectric layer; and performing laser sintering processing on the residual dielectric layer by using a laser beam through the first hole wall section so as to remove the residual dielectric layer and form a second hole wall section positioned below the first hole wall section along the hole depth direction, so that the target conductive layer is exposed at the hole bottom, wherein the first hole wall section and the second hole wall section jointly define the deep blind hole. Therefore, the machining efficiency of the large blind hole is improved, and the uncertainty of residual materials at the bottom of the hole can be reduced.