71 results about "Weld penetration" patented technology

The invention discloses a welding machining method for a drawer sliding rail, and belongs to the technical field of welding machining. S1, a middle rail workpiece is conveyed to a welding platform; s2, the clamp is controlled, so that the separation blade workpiece is attached to the welding position of the middle rail workpiece; s3, the compressed to-be-welded area is scanned through a visual sensor, and detection data of the gap and the surface state are obtained; s4, based on the detection data, the output power, the welding speed and the focus position parameters of a laser welding head are set; and S5, according to the set parameters, the laser welding head is controlled to weld the joint part of the separation blade workpiece and the middle rail workpiece, the visual sensor is used for detecting the assembly gap and the surface state in real time, and it is guaranteed that the weld penetration depth is consistent, and connection is firm; and secondly, a low heat input process is combined, so that the welding thermal deformation is greatly inhibited, the flatness of the separation blade and the middle rail is effectively maintained, and the welding precision, the structural strength and the sliding smoothness of the sliding rail are remarkably improved.

The invention relates to a method for determining a welding penetration depth of a welding process, in particular a laser welding process, comprising the following method steps: a. carrying out a set-up process, wherein, in the set-up process, a predefined welding process is carried out and information relating to a vapour capillary (100) is determined, b. determining a measurement geometry (200, 202, 204) taking into account the information relating to the vapour capillary (100), c. carrying out a productive process, wherein the predefined welding process is carried out and a welding penetration depth is determined on the basis of measurements of the vapour capillary (100) which are carried out using the measurement geometry (200, 202, 204).

The utility model discloses a welding work fixture for improving square lithium battery cover plate welding penetration, which comprises a base, a roll core positioning component and a cover plate positioning component are arranged on the base, the roll core positioning component comprises two roll core positioning grooves symmetrically arranged at the top of the base, and positioning clamping plates are arranged at the tops of the roll core positioning grooves. The positioning clamping plates are connected with lifting driving mechanisms; the cover plate positioning assembly comprises a cover plate positioning groove formed in the middle of the two roll core positioning grooves, the cover plate positioning groove is deeper than the roll core positioning grooves, inclined guide faces are arranged on the periphery of the cover plate positioning groove, two movable clamping plates are arranged above the guide faces on the two sides in a central symmetry mode, and the two movable clamping plates are connected with a synchronous transverse driving mechanism. The roll core positioning grooves are formed to limit the roll cores on the two sides, the positioning clamping plates are arranged at the tops of the roll core positioning grooves, and the positioning clamping plates are clamped at the tops of the roll cores, so that the situation that the roll cores jump up and down in the welding process, and consequently welding seams of connecting pieces and cover plates on the roll cores are uneven can be prevented.

This invention relates to the field of welding technology, specifically disclosing a welding device for a snow sweeper roller brush bracket, applied to the welding of the cover and side plates of the roller brush bracket; it includes: a frame; a welding unit; a cover tooling unit; and a side plate tooling unit. This invention achieves automatic fitting and end alignment of the inner folded edges of the cover and side plates through the coordinated action of a V-shaped placement table and side plate positioning components, eliminating positional deviations; a drive motor drives the rotating shaft to rotate at a uniform speed, guiding the welding torch to move uniformly along the joint, eliminating speed fluctuations and trajectory deviations, ensuring uniform weld depth and width; the side plate clamping component is rotatably connected to the rotating shaft, keeping the side plate vertical and ensuring that the fitting state is not damaged throughout the welding process.

A laser welding method for a stagnation shield and a turbine blade for improving a weld quality. The laser welding method includes laying a welding wire along a gap between the stagnation shield and the turbine blade; melting the welding wire using a laser having a laser incidence angle of 30° to 70°; and forming a weld having a weld penetration depth of less than 200 micrometers by one welding pass or two welding passes.

The embodiment of the invention provides a battery monomer, a battery device and a power utilization device. The battery monomer comprises a shell, an electrode terminal, an electrode assembly and an adapter, wherein the electrode terminal is arranged on the shell; the electrode assembly is arranged in the shell. The electrode assembly is provided with a tab. And the tabs are electrically connected with the electrode terminals through adapters. The adapter comprises a first connecting part and a second connecting part, the first connecting part is electrically connected with the electrode terminal, and the second connecting part is electrically connected with the tab. Wherein the first connecting part comprises a first area and a second area, the second area is in welded connection with the electrode terminal, the reflectivity of the second area is smaller than that of the first area, and the reflectivity of the first area is 60%-100%. According to the battery monomer provided by the embodiment of the invention, the welding position of the adapter and the electrode terminal can be controlled, the problems of insufficient welding, weld penetration and other welding defects in the welding process are reduced, the welding stability between the adapter and the electrode terminal is improved, and the product quality is further improved.

The invention relates to a method for determining the weld penetration depth in a laser welding process, comprising the steps of: moving a laser beam and a workpiece (10) relative to each other along a feed direction to form a weld seam, and aligning a measuring beam of an optical coherence tomograph to a measuring position (16) on the workpiece (10) to determine the weld penetration depth. In this method, the movement of the laser beam and the workpiece relative to each other is superimposed with a periodic movement of the laser beam along a path of motion that extends at least in a transverse direction (Y) perpendicular to the feed direction (X), and the measuring beam is aligned to a measuring position (16.Y) on the workpiece (10) that is constant in the transverse direction (Y) perpendicular to the feed direction (X).

This invention belongs to the field of welding technology, and particularly relates to a laser-TIG hybrid welding device and method that can increase weld width. Its features include a laser welding torch and a TIG welding torch. The TIG welding torch incorporates an ultrasonic micro-vibration component. The laser welding torch is connected to a laser generator, and the tail of the TIG welding torch is connected to a welding power source. The TIG welding torch contains a combined electrode, which includes a copper rod at the top and a tungsten electrode connected to the lower end of the copper rod. The ultrasonic micro-vibration component includes a transducer and an amplitude transformer connected to the transducer. The copper rod is located within the central hole of the transducer and the amplitude transformer. The tungsten electrode is connected to the amplitude transformer via an eccentric ceramic ring. A tungsten electrode sleeve is connected to the bottom of the amplitude transformer, and a nozzle is located on the outer side of the tungsten electrode sleeve. The bottom of the tungsten electrode sleeve is a concave mirror surface. The beneficial effects of this invention are: it is suitable for welding nickel-based alloys, significantly increases weld penetration, improves weld formation quality, enhances the welding capability of thick plates, and solves the welding problem of nickel-based alloy thick plates larger than 10mm.

The invention discloses a method for ultrafast laser welding of a ceramic reinforced aluminum-based composite material in a vacuum environment, and aims to solve the problems that high-precision welding and micro-area welding are difficult to realize by a traditional connection method of the existing ceramic reinforced aluminum-based composite material, the strength of a joint is limited by an ultrafast laser welding method, the thickness of a weldable workpiece is limited and the like. The ultrafast laser welding method in the vacuum environment comprises the steps that firstly, a to-be-connected face is ground and polished; secondly, the to-be-welded parts are assembled in a butt joint mode and placed in a vacuum cabin; 3, vacuumizing the vacuum chamber; and fourthly, ultrafast laser is aligned with the weld joint, the laser pulse width is controlled to be 200 fs to 10 ps, the laser power is 10 W to 120 W, the welding speed is 0.03 mm / s to 5 mm / s, and ultrafast laser welding is conducted. The obtained connector is almost free of welding deformation, the bending strength reaches 80% of that of base metal, high-precision welding and micro-area welding are achieved, meanwhile, the welding penetration depth can be effectively increased through the vacuum environment, and the thickness size range of weldable workpieces is enlarged.

The utility model provides a battery pack box and battery pack, the battery pack box comprises a plate body and a beam body, the beam body comprises a connecting part and a middle part, the connecting part is connected with the plate body, the middle part is connected with one side of the connecting part deviating from the plate body, in the extension direction of the plate body, at least one side of the connecting part is provided with a protruding part protruding out of the middle part, and the plate body is provided with a groove. The protruding part is welded to the plate body to form a welding seam, and the welding seam is connected to the side, away from the plate body, of the protruding part. By arranging the protruding part on the beam body, when the beam body and the plate body are welded, welding mainly occurs between the protruding part and the plate body, the protruding part is relatively thin and small in heat capacity, and the protruding part is prone to temperature rise and reaches the melting temperature, so that a welding seam is formed, and it is ensured that when the beam body reaches the needed fusion depth, the temperature rise of the plate body is still kept within the allowable range; and the risks of overheating and weld penetration are avoided. Therefore, the demand balance between the beam body welding penetration depth and the plate body welding penetration prevention can be realized, the plate body welding penetration risk is reduced, and the welding quality is improved.

The invention belongs to the technical field of laser welding automation, and discloses a high-precision laser welding device for a massage chair iron stand. The device comprises a laser welding execution unit, a vision measurement unit, a self-adaptive robust control unit and a man-machine interaction unit, aiming at the problems that the traditional welding quality is unstable and the anti-interference capability is poor, the core of the device is that the self-adaptive robust control unit carries out high-precision prediction through a welding process dynamic model module, and the self-adaptive robust control unit carries out real-time real-time monitoring. The robust tracking control module generates an anti-interference cooperative control instruction in real time and drives the execution unit to complete welding, precise closed-loop adjustment of the laser power, the welding speed and the track of the robot is achieved, the fluctuation range of the weld penetration depth and the weld width is reduced, the stability and consistency of the welding quality are remarkably improved, and the welding quality is improved. And the method has strong robustness for interference such as clamping errors and thermal deformation, and integrates an online quality evaluation early warning function based on deep learning.

The invention discloses automatic plasma splicing welding equipment and process for a stainless steel elevator door plank, and the equipment comprises a rack which is internally provided with a plurality of supporting rollers; the transfer mechanical arm is arranged outside the rack; the portal frame is erected on one side of the rack, two sets of sliding rails are fixed to the portal frame in a bilateral symmetry mode, and sliding blocks are installed on the sliding rails in a sliding mode; the machine plate is arranged on one side of the portal frame in parallel, and the machine plate is fixed to the sliding blocks; the rolling device is vertically fixed in the middle of the machine plate; the two welding units are symmetrically arranged; the two symmetrically-distributed welding units are adopted for synchronous welding, and the welding efficiency is improved; the rolling device can be pressed on one side of the upper end face of the door plate support, the welding seam scanning device can conduct image scanning on a welding seam on the side, not pressed tightly, of the door plate support, and therefore the welding seam form is obtained, the defects of incomplete fusion, undercut or weld penetration and the like possibly occurring in traditional welding are overcome, and the welding quality under the complex working condition is guaranteed.

The invention provides a welding method for a guide pipe and a U-shaped clamping block. The welding method comprises the steps that the U-shaped clamping block with an arc through groove is machined and assembled with the guide pipe, an assembly body is installed on a special back protection tool, ventilation is conducted on the back protection tool before welding, after argon arc welding is adopted for evenly distributing spot welding, welding is completed through a segmented welding method, and the back protection tool is disassembled after welding. The back protection tool is provided with an air inlet pipe, an air outlet pipe, a left protective gas cavity, a right protective gas cavity and a U-shaped section structure, and protective gas enters the left cavity through the air inlet pipe, reaches the right cavity along an arc through groove and then is exhausted. The method solves the core problem that in the prior art, when the U-shaped clamping block and the guide pipe are welded, weld joint back protection is difficult to achieve, the weld joint forming effect is improved, the penetration detection defect occurrence rate is effectively reduced, and the requirements of weld joint penetration detection and go gauge detection are met.

The present application relates to the technical field of welding process, disclose a kind of laser electric arc composite welding weld penetration control method and system, the method includes: based on the infrared thermal radiation signal of welding pool constructs pool three-dimensional temperature field;Based on the specific element spectral line intensity of the plasma optical spectrum signal in the welding pool, the pool metal vapor concentration is calibrated;The pool three-dimensional temperature field and the pool metal vapor concentration are coupled analysis, and the pool state characteristics of the welding pool are obtained;Based on the pool state characteristics dynamic division laser-arc energy distribution ratio;Based on the laser-arc energy distribution ratio, the offset position of laser focal point in weld depth direction is adjusted, and the arc voltage waveform is adjusted by inverter power supply;The present application can improve the efficiency of a kind of laser electric arc composite welding weld penetration control.

A structural member and a preparation method thereof, a battery cell, a battery, and an electric device. The structural member includes a welding region to be welded to a target member. The welding region includes a first portion and a second portion. The second portion has a weaker ability to receive welding energy than the first portion, where the ability to receive welding energy refers to a depth of a weld penetration formed at a welding site.

The invention discloses an intubation welding part penetrating type inner cavity back welding protection device, a manufacturing method and a using method, relates to an intubation welding part welding protection device, a manufacturing method and a using method, and is suitable for the field of intubation and transition section welding. In order to solve the problems of poor welding quality consistency, unstable protection effect, poor tool universality and low production efficiency existing in welding back argon protection of an insertion pipe and a transition section in the prior art, a plurality of barrel fixing pieces are uniformly distributed on the side wall of a protection barrel in the radial direction, and the protection barrel is installed on an insertion pipe welding piece through the barrel fixing pieces; and the plurality of protective gas conveying pipes are arranged outside the protective barrel. The rectangular steel plate is rolled into a cylinder, and the welding position is fixed; fixed connecting plates are welded at two ends of the protective cylinder; the four nuts are welded and fixed on the protective cylinder, and each nut is in threaded connection with a fastening bolt with a nut; and a protective gas conveying pipe is inserted into the two fixed connecting plates.

The invention discloses a metal goods shelf beam welding device which comprises a machine base, a clamping mechanism is arranged on the top face of the machine base, a welding mechanism is arranged on the top face of the machine base, an auxiliary mechanism is arranged on the surface of the clamping mechanism, a seam grinding mechanism is arranged on the rear side of the auxiliary mechanism, and a hydraulic cylinder is fixedly connected to the top face of the machine base. The left side of the hydraulic cylinder is fixedly connected with a clamping base, the surface of the clamping base is fixedly connected with a first fixing block, the bottom face of the first fixing block makes contact with the top face of the machine base, and the inner wall of the first fixing block is fixedly connected with an inclined block. The effect of inserting pins between the two cross beams is achieved, workpiece shrinkage and mechanical reversible deformation after welding and cooling are prevented, deformation and sinking after welding are effectively restrained through internal supporting and precise positioning, the weld penetration and structural compactness are improved, and the overall welding quality of the goods shelf cross beams is improved.

The application provides a reaction kettle round pipe welding equipment based on double-gun symmetrical argon arc welding, and belongs to the technical field of round pipe welding. The equipment solves the problems of low welding efficiency, poor precision and single function of the existing round pipe welding. The equipment comprises a round pipe positioning and rotating mechanism and a rack walking mechanism. A standing follow-up mechanism is arranged on the front side of the round pipe positioning and rotating mechanism. A linkage dust collector is arranged on the right side of the standing follow-up mechanism. A rack adjusting mechanism is arranged on the upper end of the rack walking mechanism. A double-gun welding mechanism and a man-machine interaction mechanism are arranged on the front side of the rack adjusting mechanism. A weld tracking and flaw detection mechanism is arranged on the left front part of the rack adjusting mechanism. A polishing and dust collection mechanism is arranged on the right front part of the rack adjusting mechanism. The application realizes integrated closed-loop management and control of welding and detection of the reaction kettle round pipe, synchronous welding by double guns, weld tracking and self-adaptive adjustment and argon protection, ensures uniform weld penetration and avoids oxidation, has high welding precision and stable quality, and accurately checks weld defects.

The application discloses a quartz glass laser welding method and an atomic cell, and belongs to the technical field of atomic cell packaging. The method is characterized in that first and second quartz glass components are butted to form a joint interface, and CO2 laser beams are used for welding, which is divided into two steps of pre-welding and main welding. In the pre-welding, a first laser power is used for scanning to form a plurality of discrete fusion points to fix the components; in the main welding, a second laser power larger than the first laser power is used for continuous scanning to form a sealing weld. The interval between adjacent fusion points formed by the pre-welding is less than 1.5 times the diameter of a main welding spot, so that the main welding weld can completely cover and fuse the discrete points, and the weld is continuous and uniform. By controlling the laser power and the scanning speed, the weld penetration is stabilized at 0.5 mm-2 mm, the air tightness is better than 8*10 ‑11 Pa·m³ / s, and the heat affected zone width is less than 1.5 mm. The application further discloses an atomic cell prepared by using the method, which can avoid component displacement and stress concentration, realize sealing welding with high air tightness and low heat affected zone, and improve the long-term stability of the atomic cell.

The application relates to the technical field of welding detection, and discloses a laser non-penetration welding seam depth nondestructive detection method; laser visual sensing and ultrasonic phased array detection are coaxially integrated in a welded joint; high-quality collection of the three-dimensional appearance of a weld seam surface and internal acoustic information is synchronously completed in an optimal time window after welding; multi-source heterogeneous sensing information is deeply fused by using a characteristic layer fusion technology; a depth prediction model is constructed based on a machine learning algorithm; the industry problem that a single sensing technology cannot establish a reliable mapping relationship between a surface feature and internal depth is effectively solved; online, rapid, nondestructive, high-precision quantitative detection and real-time quality judgment of the laser non-penetration welding seam depth are realized; the detection efficiency, precision and reliability are remarkably improved; and an effective quality control solution is provided for intelligent manufacturing.

The invention provides a welding part, a battery, electric equipment and a welding method. At least one welding wire is formed on the welding piece, the welding wire comprises at least one linear welding wire and at least one curved welding wire, and the linear welding wire and the curved welding wire are sequentially connected so that the welding wire can gradually extend in one direction; the welding part is used for being welded with a to-be-connected part, the weld penetration depth of the welding part of the welding part and the to-be-connected part is H1, the thickness of the welding part is H2, and H1 / H2 is larger than or equal to 1.1 and smaller than or equal to 3. According to the welding part, the length of the welding wire can be effectively increased, the welding stability and the welding quality of the welding part and other parts can be improved, the problem that accumulated heat at an intersection point is too high due to the fact that a single welding wire has the intersection point can be solved, and the welding stability and the welding quality are guaranteed. The connecting stability of the welding piece and the to-be-connected piece is guaranteed, meanwhile, the to-be-connected piece can be prevented from being welded through due to the fact that the weld penetration depth is too large, and the welding quality is guaranteed.

The invention discloses a method for welding a thick plate structure in a cutterhead, which belongs to the technical field of shield tunneling machines and comprises the steps of preparation before welding, preheating before welding, welding operation, heat preservation after welding and detection after welding. The pre-welding preparation comprises selection of an adaptive plate and pretreatment of a welding seam; the pre-welding preheating is used for preheating a steel plate according to a set temperature range and a preheating range; the welding operation adopts a set welding bead arrangement sequence, matched welding materials and grading process parameters, the post-welding heat preservation adopts a temperature return heat preservation mode, and the post-welding detection executes corresponding flaw detection standards according to weld penetration types. The problems that in the traditional technology, Z-direction cracks and transverse cracks frequently occur in the cutterhead welding process, and the welding qualification rate is low are solved.

A laser stitch welding device, comprising: a laser welding assembly (3) configured to release laser beams from a front surface onto plates (5) to be welded that are stacked; a pressing piece (2) for adjusting a spacing between the stacked plates; detecting assembly for detecting a welding parameter of the stacked plates from a back surface; and a controller (1) for adjusting in real time the pressing level of the pressing piece (2) and / or operation parameters of the laser welding assembly (3) based on the welding parameter detected by the detecting assembly. The laser stitch welding device is capable of detecting in real time welding parameters such as back surface temperature and thermal infrared image of welding seams (6) when welding the plates. A control system controls the pressing level of the pressing piece or the operation parameters of the laser welding assembly based on the welding parameters to adjust the welding in a timely manner, thus achieving adaptive and stable control of weld penetration. The present application further provides a welding method for the laser stitch welding device.

The application provides a press machine movable workbench no-bevel narrow-gap vertical welding method, and belongs to the technical field of press machine movable workbench welding. The technical scheme is as follows: a press machine movable workbench no-bevel narrow-gap vertical welding method comprises the following steps: selecting a welding mode according to the thickness of a thick plate; when the thickness of the plate is less than 120 mm, single-gun single-side vertical welding is adopted, and a ceramic gasket is attached to the side of the weld away from the welding gun; when the thickness of the plate is 120 mm or more, double-gun double-side vertical welding is adopted, and a square steel gasket is riveted in the middle of the weld; the assembled movable workbench is vertically hoisted to the front of a narrow-gap vertical welding system, welding is started, the welding gun is reciprocated in the weld, and the lifting movable platform controls the welding gun to move upwards along the weld. The application has the beneficial effect that it can effectively adapt to the thick plate welding scene of the press machine movable workbench and meet the core requirements of weld penetration and strength.

The invention discloses a welding penetration control method and system based on LabView, and relates to the technical field of welding process control. The method comprises the steps that a welding voltage signal in the welding process is collected; a LabView processor is used for conducting data format conversion, noise reduction processing and frequency domain analysis on the welding voltage signals, and the oscillation frequency of a molten pool is extracted; the oscillation frequency of the molten pool is compared with the critical penetration frequency in an expert database, and the penetration state of the current welding process is judged; and the welding system and / or the motion control system are / is controlled to execute corresponding control actions according to the judgment result, so that welding heat input is adjusted, and closed-loop control over the penetration state is achieved. The noise reduction treatment adopts a self-adaptive multi-scale correlation weighted generalized threshold wavelet noise reduction method, and the oscillation frequency of the molten pool is obtained through peak group proportion analysis. According to the method, online recognition and real-time regulation and control of the welding penetration state can be achieved, and the method has the advantages of being high in anti-interference capacity, stable in feature extraction and high in control precision.

This application provides a method, apparatus, electronic device, storage medium, and program product for detecting weld penetration depth, relating to the field of computer technology. The method acquires ultrasonic signals from the welding area, identifies weld signal segments from the ultrasonic signals, thus more accurately determining the start and end points of the penetration depth. Then, based on the duration of the weld signal segment and the signal propagation speed, the penetration depth can be precisely measured. Since ultrasonic testing is a non-destructive testing method, it can quickly and accurately detect weld penetration depth, making it suitable for rapid evaluation of welding quality in industrial production.

This invention discloses a laser welding method for quartz glass and an atomic gas chamber, belonging to the field of atomic gas chamber encapsulation technology. The method involves butt-joining first and second quartz glass components to form a bonding interface, and then welding using a CO2 laser beam, divided into two steps: pre-welding and main welding. During pre-welding, a first laser power scan is used to form multiple discrete weld points to fix the components; during main welding, a higher second laser power is used for continuous scanning to form a sealing weld. The spacing between adjacent weld points formed in the pre-welding is less than 1.5 times the diameter of the main welding spot, ensuring that the main weld completely covers and fuses the discrete points, guaranteeing a continuous and uniform weld. By controlling the laser power and scanning speed, the weld penetration depth is stabilized at 0.5 mm to 2 mm, with an airtightness better than 8×10⁻⁶ mm. ‑11 Pa·m³ / s, with a heat-affected zone width of less than 1.5 mm. This invention also discloses an atomic gas chamber prepared using this method, which can avoid component displacement and stress concentration, achieve high airtightness and low heat-affected zone sealing welding, and improve the long-term stability of the atomic gas chamber.

The invention provides a computational simulation method for buried crack distribution in a weld zone of a pressure-bearing container. The computational simulation method comprises the following steps: acquiring the wall thickness of a target pressure-bearing container and the penetration depth of a weld; setting probability distribution of buried crack density, depth and length and Monte Carlo simulation times, and randomly sampling from the probability distribution through a Monte Carlo method to obtain corresponding characteristic parameters; based on the ratio relationship between the wall thickness and the penetration depth, calculating the density distribution of the buried cracks at different depths by adopting a piecewise function; the depth ratio of the buried crack is defined as the ratio of the length to the depth of the crack, and based on the wall thickness, the penetration depth and the characteristic parameters obtained through sampling, the density distribution of the buried crack with different depth ratios at any depth is calculated through an empirical correction function; and after Monte Carlo simulation for preset times, outputting a depth-depth ratio joint density distribution result of the buried cracks in the weld zone. The method can effectively evaluate the overall distribution of the burial cracks in the weld zone of the pressure-bearing container made by welding plates or forgings.

The invention discloses an automatic argon arc welding method for an aluminum alloy plate-fin radiator, which comprises the following steps that: aiming at a brazed aluminum alloy plate-fin radiator core body, laser welding is firstly adopted to carry out edge sealing welding on a side plate and a sealing strip, and the position of a laser welding seam corresponds to the position of a brazed seam of the side plate and the sealing strip; and then the gas collecting hood is welded on the side plate through automatic argon arc welding. According to the method, edge sealing welding of the side plates and the sealing strips is achieved through laser welding, the weld penetration is controlled by controlling welding parameters of laser welding, and the requirement of a follow-up automatic argon arc welding gas collecting hood is met; the problem that when automatic argon arc welding is carried out on the aluminum alloy plate-fin radiator core and the gas collecting hood, brazing seam cavity channeling and leakage are likely to happen is solved, and the welding efficiency and welding quality of the aluminum alloy plate-fin radiator are improved.

The application relates to the technical field of laser welding equipment, in particular to a novel laser welding feather ash blowing-off device, which is arranged on a robot arm and comprises a laser welding head, an inert gas protection gas pipe and a feather ash blowing-off device, the feather ash blowing-off device is arranged between the laser welding head and the inert gas protection gas pipe, the feather ash blowing-off device comprises a compressed air adjusting valve, a compressed air quick socket and a feather ash blowing-off outlet, the compressed air adjusting valve is installed at the end of the feather ash blowing-off outlet, the compressed air quick socket is installed on the compressed air adjusting valve, a compressed air flow channel is arranged in the feather ash blowing-off outlet, an air outlet is arranged on the side wall of the feather ash blowing-off outlet, and the air outlet is arranged along the direction of a laser incident light beam of the laser welding head. The application has the effects of improving the problem that the feather ash can absorb laser energy to cause the weld penetration fluctuation and the excessive weld width deviation, and improving the laser welding effect.