657 results about "Laser soldering" patented technology

The application discloses a kind of thick gauge 430 ferritic stainless steel laser weld low-temperature rollability processing method, comprising: using-1~‑2mm negative defocusing+8~10kW low-power laser welding, the grain of heat-affected zone is refined;NiCr-3 welding wire is preheated to 300~400℃ and carried out hot wire laser welding, reduces cooling rate;Weld is implemented 700 DEG C / 10-12 seconds short time induction annealing, decomposes martensite and releases residual stress;Weld is inducted to ≥50 DEG C before rolling and restores plasticity;Optimize five rack continuous rolling parameter, and the reduction of first rack is reduced to 15%-20%.The application is by welding-heat treatment-rolling whole process synergic control, makes weld low-temperature cracking rate from 2.6 times / month reduce to 1 times below, and-10 DEG C impact toughness is promoted to 22J, cup convexity qualification rate reaches 95%, and annual economic benefit is greatly improved, applicable to the thickness 3.0~8.0mm 430 stainless steel cold rolling production, solves the technical problem that thick gauge 430 stainless steel weld is easy to crack under low-temperature environment.

The application relates to the technical field of welding, and discloses a pulse ring-shaped light spot laser welding method and a laser welding device. The method comprises the following steps: controlling a laser emitter to emit a first laser beam and a ring-shaped laser beam arranged around the periphery of the first laser beam, so that the first laser beam and the ring-shaped laser beam irradiate a to-be-welded area; controlling the ring-shaped laser beam to preheat the to-be-welded area in a first pulse mode; under the condition that the to-be-welded area reaches a preset temperature, controlling the first laser beam to heat the to-be-welded area at a first power; under the condition that the to-be-welded area is heated to form a molten pool, controlling the first laser beam and the ring-shaped laser beam to synchronously move along the extension direction of a weld at a first welding speed, and controlling the power of the first laser beam to be constant and controlling the ring-shaped laser beam to complete welding of the to-be-welded area in a second pulse mode. The application discloses the pulse ring-shaped light spot laser welding method and the laser welding device, and solves or improves the problem of poor weld quality.

A welding program creation device, a welding program creation method, and a welding program creation program that can create welding programs that enable efficient welding. [Solution] The welding program is configured to perform the following: a process for identifying identical metal pins from among a plurality of metal pins arranged along the circumferential direction of a circumferentially rotatable table and moving in the circumferential direction in accordance with the rotation of the table, in which at least the same type of metal pins having the same height; a process for creating a welding cycle for each group of identical metal pins; and a program for creating a welding program that includes one or more of the above processing cycles. The welding program is configured to perform welding of each metal pin in each processing cycle by rotating the table in the circumferential direction without moving the position of the welding head that irradiates the metal pins with laser light.

The application discloses a kind of laser welding device and welding method for heat exchanger connecting pipe processing, it is related to technical field, including welding frame, the welding frame outside is provided with welding machine, welding frame bottom is fixedly connected with mobile platform, further include: fixed plate, fixed plate is set to mobile platform mobile end, fixed plate top is provided with two mobile seats, the top of two mobile seats is fixedly connected with fixed ring, the fixed ring inside is provided with clamping mechanism, between one of fixed ring and fixed plate it is provided with screw rod for moving;The welding place of two pipe fittings is arranged in the sealed spherical shell, and the inside of it is filled with protective gas before welding, air is exhausted, oxygen is discharged during welding, reaction of metal and oxygen under high temperature is avoided to generate oxide, the purity and mechanical properties of weld metal are guaranteed.Simultaneously, after air is replaced, nitrogen, water vapor and other gases are not rolled into molten pool, significantly reduce the internal porosity defect of weld.

This application relates to the field of battery processing equipment technology, and in particular to a laser welding gripper and laser welding equipment. The laser welding gripper includes a gripper body and an air blowing channel. The gripper body includes a pressing part and a mounting part connected to each other, and the mounting part is used to connect with a base. The pressing part has a pressing surface on one side in a first direction, which can press against the surface of the workpiece. The pressing part has a processing hole that penetrates the pressing part in the first direction. The air blowing channel is disposed inside the gripper body. One end of the air blowing channel is connected to the air supply device of the base, and the other end of the air blowing channel penetrates the wall of the processing hole in a second direction to form an air blowing port. According to the laser welding gripper and laser welding equipment provided by this application, the processing smoothness of the workpiece is guaranteed, the oxidation phenomenon on the surface of the workpiece is reduced, and the generation of spatter is reduced, thereby significantly improving the strength and corrosion resistance of the weld joint and improving the welding quality.

The utility model discloses an adjustable laser welding positioning clamping tool, including base, be equipped with processing area on the base, and the workpiece to be processed is placed in processing area, the Y direction guide strip and moving plate are equipped with respectively on the both sides of processing area on the base, Y direction guide strip and moving plate all are equipped with the compact mechanism, the X direction guide strip of X axis distribution is equipped with in the one side of moving plate, and moving plate is adjustable cooperation with Y direction guide strip with X direction guide strip as the direction, two groups of side pressure mechanism are equipped with on the both sides of processing area on the base, and side pressure mechanism is adjustable installation through the bolt relative to the base, and two groups of side pressure mechanism are used for the compact workpiece adjustable from the both sides, Y direction positioning block is equipped with on the both sides of side pressure mechanism in one side of base, and Y direction positioning block is adjustable installation through the bolt relative to the base, the utility model discloses, has adjustable and the characteristics of low use cost.

The application discloses a kind of 800 MPa level cold-rolled martensitic steel hot-rolled substrate laser welding method, belongs to the technical field of welding.The application adopts laser butt welding process, the tail of front coil strip steel and the head of rear coil strip steel is formed loop respectively by welding machine pinch roll before and after welding machine, positioning and centering after being carried out to strip head and tail, using double cutting shear is cut to head and tail to ensure the quality of welding machine end surface.The application moves laser from operating side to transmission side by protection gas purging, cooperates with the front and rear heat devices that advance with laser and carries out butt welding, avoids the shortcomings of traditional laser welding high energy consumption and flash welding, reduces production cost and process complexity, improves production speed and weld quality, reaches the purpose that 800 MPa level cold-rolled martensitic steel hot-rolled substrate is welded.

This utility model relates to the field of laser welding technology, specifically disclosing a laser welding gun and laser welding equipment with a gas channel structure. The welding gun includes a working part and a gun barrel. The working part has a gas supply channel with an inlet at its input end, which is connected to a gas source. The working part has an output port connected to the gas source, and the output end of the gas supply channel is connected to the output port via an outlet channel, which connects the gas supply channel and the output port. The gun barrel is detachably connected to the working part, and the output port is connected to the input end of the gun barrel. This welding method solves the problem of potential impact damage to externally located gas channels, improves the structural stability, durability, and operational safety of the equipment, and ensures welding quality and energy transfer efficiency.

The present application relates to the technical field of laser welding, and discloses a movable single-arm laser welding machine, which comprises a bearing mechanism, a control box and universal wheels fixedly installed at the bottom of the control box; a support management mechanism, which comprises a fixed seat fixedly installed on the outer side of the control box, a support column hingedly connected to the top of the fixed seat and an elastic buffer assembly arranged at the top end of the support column. The present application orderly separates and fixes pipelines such as air pipes through the guiding effect of the support ring, avoids winding and abrasion during the movement of the mechanical arm, adopts a combined structure of an adjustable protective shell and a splash-proof baffle to cover the key parts during the movement of the multi-joint mechanical arm, block the attachment of high-temperature splashes, and form a continuous airflow barrier with the filter to timely remove residual particles, keep the moving parts clean, and ensure the movement freedom of the mechanical arm in the whole working range, thereby improving the long-term operation stability and service life of the equipment.

This invention discloses a laser welding device for machining gears in electric drive reducers, relating to the field of electric drive reducer gear machining technology. It includes an adjusting base component and a drive base component. The drive base component is mounted on one end of the adjusting base component, and a gear fixing seat is connected to the top of the drive base component. This laser welding device for machining gears in electric drive reducers, through the mutual cooperation of the adjusting base component, drive base component, gear fixing seat, and welding components, can adjust the welding position and welding angle according to the actual specifications of the gear, eliminating the need for repeated manual positioning and clamping, reducing positioning errors. Simultaneously, the device can drive the gear to rotate precisely, allowing the welding head to stably align with the gap to be welded on the gear, ensuring welding accuracy and consistency. When clamping and fixing the gear through the gear fixing seat, it can adapt to reducer gears of different sizes, and the clamping process is simple and quick, improving overall processing efficiency.

The utility model relates to laser welding device technical field discloses a push -and -pull type wire feeding mechanism for laser welding, including traction cover, both sides of traction cover all are fixedly connected with a set of support, a set of support's outside fixed connection has the conveying cover, another set of support's outside fixed connection has the traction pipe. This push -and -pull type wire feeding mechanism for laser welding, through according to the different of welding wire diameter size, rotate threaded rod, threaded rod pushes and delivers second gasket to move to the inboard side, while second spring exerts pressure to the inclined pole, controls two groups of pusher wheel to exert pressure to welding wire, ensures that the welding wire of different diameters can carry out extrusion definition, and starts the motor of third gear external installation, under the action of gear set, second rack chain and fourth gear drive, ensures that the rotating speed of two groups of pusher wheel is same and opposite rotation, to ensure that pusher wheel pushes and moves welding wire, ensures that welding wire keeps stability when moving.

1. The name of the design product: laser welding control cabinet (QJRC-1LW). 2. The use of the design product: the design product is used for the control system of integrated robot laser welding equipment, laser and cold water machine and other components. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model relates to hoop seat machining equipment technical field discloses hoop seat laser welding feeding frock, including vibrating disk and feeding groove, the vibrating disk includes disc body and vibrator, is provided with the advanced way in disc body inner wall spiral upwards, the advanced way is sequentially provided with flat advanced way section, baffle screening section and narrow way screening section along the transmission direction, and the place where the advanced way end and feeding groove are connected is equipped with the graded screening section. The scheme is through the combination setting baffle screening section, narrow way screening section and graded screening section, is convenient for unified feeding transmission in the body position of hoop seat, rejects the non - standard hoop seat transmission body position, only leaves the hoop seat with'the first end is in front, and the welding seam is upward' body position and is smoothly conveyed to the welding station, promotes the feeding accuracy, and further promotes the continuity of laser welding production.

The application discloses a kind of based on molten pool state feedback's titanium alloy laser welding pore control method and system, by design adjustable electromagnetic stirring power and frequency electromagnetic generating module connection magnetic field exerting component, establish the matching process parameter library of electromagnetic stirring and laser welding, cooperative adjustment infrared blue light composite laser welding process parameter, including infrared laser power, blue light laser power, welding speed and defocusing amount.Again using high-speed camera device carries infrared thermal imaging monitoring molten pool state, simultaneously construct real-time monitoring and feedback control system, to realize titanium alloy welding overall closed-loop control.Adopt the method of the application can realize the stirring of molten pool in laser welding process, make pore effectively escape, avoid the pore defect caused by gas not in time to escape under the condition that laser welding cooling speed is faster.Titanium alloy laser welding pore rate is reduced to 2% and below, compared with traditional laser welding method reduces more than 80%, significantly improves welding quality stability.

This invention discloses a low-vacuum laser welding device for medium-thick aluminum alloy plates, belonging to the field of metal welding technology, aiming to solve the problems of prominent porosity defects and insufficient mechanical properties in the welding of medium-thick aluminum alloy plates. The device consists of a laser cleaning and oscillating welding integrated module, a low-vacuum welding chamber module, a control system, and a detection module. The laser cleaning module uses a pulsed fiber laser to remove the oxide layer at an optimal energy density of 13.24 J / cm² under nitrogen protection, reducing the surface oxygen content to 9.66%. The low-vacuum welding chamber module constructs a negative pressure environment of 10²-10³ Pa to suppress plasma plumes. The oscillating laser welding module optimizes the stirring of the molten pool by achieving circular oscillation with a frequency of 80 Hz and an amplitude of 1 mm. The control system coordinates and regulates the parameters of each module, and the detection module monitors the weld quality in real time. This device reduces the weld porosity to below 0.032% and the tensile strength to 388.62 MPa (83.16% of the base material), making it suitable for welding medium-thick aluminum alloy plates for aerospace applications.

This invention discloses an optimized method for stator and rotor welding processes in the field of motor manufacturing, comprising the following steps: improving welding quality through pretreatment, coating with modified composite materials, and optimizing laser welding parameters. During pretreatment, the stator and rotor areas to be welded are sanded with 800-1200 grit sandpaper, followed by ultrasonic cleaning with acetone or alcohol for 10-15 minutes to achieve a surface roughness Ra ≤ 1.6 μm; a 0.1-0.3 mm thick layer of modified composite material is coated onto one surface and dried at 80-120°C for 1-2 hours; laser welding is employed, with the molten pool temperature monitored at 1800-2200°C during welding; immediately after welding, the welded parts are placed in a holding furnace at 200-300°C for slow cooling for 2-4 hours, and then cooled to room temperature at a rate of 5-10°C / min. This method effectively improves the strength, toughness, and crack resistance of the welded joint, reduces the heat-affected zone, and minimizes deformation.

The invention discloses a laser welding method for an ultra-high-strength stainless steel welding part and the ultra-high-strength stainless steel welding part, and particularly provides two stainless steel blank workpieces to form an assembly, and the blank assembly is melted to form a laser welding joint under the action of a laser heat source. And the welded joint is placed in a low-temperature environment at the temperature T for a period of time to be subjected to subzero treatment, and then the welded joint with the excellent joint performance within the wide temperature range is obtained. The welding joint has ultrahigh strength, and the strength of the welding joint can reach 90% or above of the strength of a base material in typical low-temperature (-196 DEG C), room-temperature and high-temperature (100 DEG C) environments; and the application in environments with different assembly gaps can be met.

The application discloses a laser welding clamping mechanism for aluminum-steel dissimilar metal splicing and relates to the technical field of aluminum-steel dissimilar metal welding, which comprises a frame body, the frame body is connected with a clamping assembly, the clamping assembly comprises a translation piece installed on the frame body, the translation piece comprises two groups of first motors, coaxial fixing connection of output ends of the first motors with single screw rods, and the inside of the frame body is fixedly connected with two groups of guide rails respectively; two groups of clamping pieces are installed on the two groups of single screw rods respectively, the laser welding clamping mechanism for aluminum-steel dissimilar metal splicing is matched with the two groups of first motors, the single screw rods and the guide rails, the horizontal positions of the two groups of clamping pieces are adjusted respectively, the horizontal positions of the anti-escape block, the supporting plate, the third motor, the first bidirectional screw rod, the first bellows, the two groups of slide rods, the first slide rail and the four groups of clamping jaws are adjusted by the first air cylinder, the clamping jaws are extended along the guide grooves in the guide blocks, and the clamping length is adjusted to be matched with the plate.

This application relates to the field of welding fixture technology, specifically providing a fixing device for high-altitude laser welding of outdoor gas pipelines. The device includes: a device body for temporarily fixing a new pipe section; a first clamping and fixing part fixedly disposed on the left side of the device body for clamping an existing pipe section; a second clamping and fixing part detachably disposed in the middle of the device body for clamping and fixing the weld joint between the existing and new pipe sections; and a third clamping and fixing part fixedly disposed on the right side of the device body for clamping the new pipe section. This provides a more reliable clamping force during high-altitude operations, effectively preventing pipeline displacement caused by wind disturbance or gravity, thereby improving laser welding quality, reducing weld defects, and ensuring the welding safety and reliability of outdoor gas pipelines.

The utility model is a tin ball separation closed loop supply device and a multi-channel tin ball laser welding machine, the supply of tin balls from the bin body to the blanking hole is realized through the transverse movement of the first moving plate and the second moving plate in the tin ball separation closed loop supply device, compared with the traditional rotary table supply device, the device reduces the floor space, and solves the problems of jamming, deformation due to impact and difficulty in taking materials during the tin ball feeding process; the multi-channel tin ball laser welding machine is connected with the conveying member through two symmetrical tin ball separation closed loop supply devices, realizes the supply of different specifications of tin balls, and is convenient for subsequent welding.

The utility model discloses a kind of car light moisture-proof, breathable defogging structures, comprising: rear cover shell, rear cover shell has the cavity for accommodating drying agent, the mounting boss of the cavity bottom has the design of rising, mounting boss center is equipped with the breathable pipeline that leads to the top of rear cover shell;Valve component buckled in the bottom of breathable pipeline;First PTFE film is shielded valve component by laser welding in mounting boss outer ring;Sealingly arranged in the top of rear cover shell protective end cap, the air passage of protective end cap inboard has the docking lead-through breathable pipeline and extends to cavity, outside is provided with multiple through breathable groove;Second PTFE film is covered in the inboard of protective end cap, and second PTFE film exposes breathable pipeline.The utility model is automatically opened and closed by valve component with pressure change, realizes the pressure balance inside and outside car light;Utilize the breathable waterproof characteristic of PTFE film and the hygroscopic effect of drying agent, effectively block external humidity and remove internal humidity, prevent car light fogging, prolong service life.

The utility model discloses a kind of rotary pressure vessel welding devices, belong to pressure vessel welding technical field.A kind of rotary pressure vessel welding device, including hoist frame, the lower end of truss frame is provided with laser welding machine, welding tool is installed below laser welding machine, the upper end of welding tool is installed with two adjusting frame, the rear end of laser welding machine is installed with electric cylinder.The utility model solves the problem that the existing pressure vessel welding device is affected by the size of pressure vessel, poor adaptability, affects the welding effect, the utility model is fixed laser welding machine in hoist frame lower end, carries out welding work to pressure vessel to be processed with laser welding machine, adapts to different working environment, by installing electric cylinder between truss frame and laser welding machine, electric cylinder telescopic, the angle of laser welding machine lower end welding head welding is adjusted work, simple structure, convenient operation, collocation welding tool realizes quick adjustment and adaptive work.

This invention relates to a method for determining the welding depth during laser welding using an optical coherence tomography (OCT) apparatus, the method comprising the steps of: – pointing a processing laser beam (11) onto a component (10) to create a keyhole (12); – coupling a measuring beam (15) into the beam path of the processing laser beam (11); – performing multiple line scans on the component (10) using the measuring beam (15) in the region of the keyhole (12), and detecting the reflection of the measuring beam (15) from the component (10) using an OCT apparatus. The light emitted is used to generate a superimposed height profile of the component (10) in the region of the keyhole (12); – Based on this height profile, the height of the component surface (10.1), the lateral position of the deepest point (16, 16', 16") of the keyhole (12) on the component (10), and the depth of the deepest point (16) of the keyhole (12) are determined; – Based on the difference between the height of the component surface (10.1) and the depth of the deepest point (16) of the keyhole (12), the keyhole depth (17) is calculated, and the welding depth is determined therefrom.

The application discloses a laser welding method of a laminated workpiece, and belongs to the field of laser welding. The laser welding method of the laminated workpiece comprises the following steps: laminating two or more workpieces to form a laminated workpiece; scanning a welding path on the surface of the laminated workpiece by using a laser beam with a ring-shaped light spot; the welding path comprises a spiral line and a circular outermost circle; the circular outermost circle adopts a sine swing form; a weld is formed along with the movement of the laser beam; and the upper surface of the weld and the lower surface of the weld are remelted by using laser heat conduction welding. The laser welding method provided by the application is characterized in that the spiral line in the inner layer of the welding path is used for providing a fusion depth and reducing heat input, the outer layer adopts a circular form with a sine swing, which is used for avoiding the appearance of a welding bump and increasing the fluidity of a molten pool, so as to reduce pores in the weld; the upper surface and the lower surface of the weld are remelted, which is used for repairing the quality of the surface of the weld and promoting the release of hydrogen, and the mechanical properties of the weld are improved.

The application discloses a kind of automobile fuel pump support laser welding frock, comprising: fixed frame;Supporting table, supporting table is set on fixed frame, and the cover plate of the automobile fuel pump support to be welded is matched on supporting table;Support frame, support frame is connected external moving device, and support frame is driven to move by external moving device;Drive assembly, drive assembly is set on support frame;First carrier, drive assembly drives first carrier to move;First fixed block, first fixed block is detachably set on first carrier;Second carrier, second carrier is movably set on support frame;Second fixed block, second fixed block is detachably set on second carrier;One oil cylinder can be matched between first fixed block and first carrier, another oil pipe can be matched between second fixed block and second carrier;The application is realized by airflow to improve the stability effect of oil pipe, and airflow also realizes cooling effect.

The utility model relates to a semiconductor device and its packaging technical field, specifically disclose a kind of module terminal and HPD packaging module using laminated busbar structure, including DC terminal, DC terminal includes: two ends and chip and direct current power supply intercommunication's first component and second component, first component and second component current is opposite;First component and second component form laminated busbar structure to offset reverse current magnetic field, the partial area of first component and the overall area of second component overlap to expand magnetic field offset effective area.The utility model forms laminated busbar structure by setting first component and second component, offset the magnetic field generated by reverse current, secondly, the projection area of second component is the effective overlapping area of first component and second component, to expand the effective area of magnetic field offset as far as possible, to reduce total magnetic flux without affecting laser welding, to reduce stray inductance, improve system reliability.

Embodiments of the present application provide a terminal device, divided into at least two folding areas and a rotating shaft area located between the two adjacent folding areas. The terminal device comprises a plurality of circuit boards and a flexible circuit board, each folding area is provided with at least one circuit board, and the flexible circuit board passes through the rotating shaft area and is connected to at least two circuit boards. Connecting the flexible circuit board to the circuit boards by means of laser welding increases the distance between a user and a heat source during charging, thereby lowering the temperature perceived by the user; reduces the number of interconnections, thereby reducing heat generated during charging; and facilitates the disassembly of the flexible circuit board.

This utility model relates to the field of laser welding technology and proposes an underwater welding laser head, including a stainless steel tube cover; a connecting plate fixedly connected to the inner wall of the stainless steel tube cover, one end of which is fixedly connected to the end of the laser welding head; a spray disc fixedly connected to the lower end of the inner wall of the stainless steel tube cover, with spray holes at equal angles at the bottom of the spray disc; a connecting pipe extending to the outside of the stainless steel tube cover fixedly connected to one side of the top of the spray disc, with the bottom end of the connecting pipe communicating with the interior of the spray disc; and a protective cover movably connected to the bottom of the stainless steel tube cover, with fixing components at the top of the protective cover and the bottom of the stainless steel tube cover. Through the spray disc, connecting pipe, and spray holes, an umbrella-shaped protective gas curtain can be sprayed out, ensuring that a small area below the end of the laser welding head is free of water, facilitating welding operations. At the same time, high-pressure gas blows away welding fumes, ensuring smooth welding.

The application discloses a PC / ABS alloy and a preparation method and application thereof, and belongs to the technical field of high polymer engineering plastics; the PC / ABS alloy provided by the application comprises the following components in parts by mass: 63-78 parts of PC, 8-22 parts of ABS, 5-13 parts of titanium white, 1-6 parts of bisphenol A-bis(diphenyl phosphate), 0.5-5.5 parts of indium tin oxide, 0.1-1.2 parts of carbon black and 0-8 parts of an auxiliary agent; the average particle size of the titanium white is 140-310 nm; and the average particle size of the carbon black is less than or equal to 22 nm. The product prepared by the application has excellent light-shielding high-reflecting white effect and good appearance, and excellent laser welding performance; thereby, the product can be widely applied to the preparation of paint-sprayed parts of automobile interiors and exteriors. Moreover, the preparation method of the PC / ABS alloy is simple in operation and is beneficial to actual production.