675 results about "Laser heating" patented technology

A method of making a vacuum insulating panel, the vacuum insulating panel comprising a first glass substrate, a second glass substrate, a plurality of spacers provided in a gap between at least the first and second glass substrates, and a seal provided between at least the first and second glass substrates, the seal comprising a first seal layer and / or a second seal layer. The method may include laser heating, using a laser beam from a continuous wave near-IR laser, seal material in order to form the first seal layer; wherein the laser heating may include causing the laser beam to move at a lateral speed of from about 5-70 mm / second relative to the substrates and the first seal material so that the laser beam at least partially passes through at least one of the glass substrates and impinges upon at least the second seal layer in order to heat the second seal layer and fire and / or sinter the first seal material thereby forming the first seal layer.

A method of making a vacuum insulating panel including a first substrate, a second substrate, a plurality of spacers provided in a gap between at least the first and second substrates, and a seal provided between at least the first and second substrates, the seal comprising a first seal layer, and optionally second and / or third primer layer(s). The method may include at least one of: (i) laser heating, using a laser beam from a laser, the first seal material for firing and / or sintering the first seal material to form the first seal layer, in a manner that causes TeO4>TeO3 in the first seal material to transform into TeO3>TeO4 due to said laser heating, whereby an amount of TeO4 decreases and an amount of TeO3 increases due to said laser heating, and / or (ii) laser heating in a manner that causes V2O5>VO2 in the first seal material to transform into VO2>V2O5 due to said laser heating whereby an amount of VO2 increases and an amount of V2O5 decreases due to said laser heating, so that after said laser heating the first seal layer comprises more VO2 than V2O5 by wt. %.

A method of making a vacuum insulating panel, the vacuum insulating panel including a first glass substrate, a second glass substrate, a plurality of spacers provided in a gap between at least the first and second glass substrates, and a seal provided between at least the first and second glass substrates, the seal comprising a first seal layer. The method may include: providing first seal material for the first seal layer in a location at least partially between at least the first and second glass substrates; laser heating, using a laser beam from a continuous wave near-IR laser, the first seal material in order to form the first seal layer; wherein said laser heating may comprise using the laser beam, having a size of from about 2-15 mm, so that the laser beam at least partially passes through at least one of the glass substrates to fire and / or sinter the first seal material thereby forming the first seal layer, in a manner so that the first seal layer a density of from about 2.8-4.0 g / cm3; and after forming the first seal layer, evacuating the gap to a pressure less than atmospheric pressure.

The invention relates to the technical field of steel structure welding assembly, and discloses a dynamic cooperative control steel structure welding assembly production line and an operation method thereof, which are used for automatic welding and deformation correction of H-shaped steel components. The production line comprises a feeding area, an assembling area, a welding station and a correction detection area. Global cooperative control is achieved through a distributed supporting system, a multi-dimensional sensor monitoring system and a cooperative robot system. The distributed supporting system is composed of dynamic roller bed units, the supporting height is adjusted in real time through a pressure sensor array and a micro hydraulic actuator, and workpiece droop is counteracted. The multi-dimensional sensor monitoring system collects temperature, strain and morphology data in real time; the welding robot and the correction robot synchronously apply electromagnetic stirring to optimize a welding seam during welding, and ultrasonic peening and laser heating are combined to reduce residual stress during correction. The industrial control computer dynamically adjusts welding parameters, supporting force and a correction strategy through sensor data, and high-precision straightness and low-residual-stress control is achieved.

The invention discloses a laser cladding temperature field analysis method based on a finite element simulation method. A metal flat plate is used as a research object. ANSYS software is adopted for simulation. A laser cladding process is simulated by constructing a finite element model and a refined mesh in combination with a moving Gaussian heat source and birth-death unit technology, and simulated laser heating is applied to the surface of a part as a thermal load. The ANSYS processing unit calculates a simulation result, and the postprocessor displays temperature field distribution. Simulated and actual coating cross section molten pool shapes are compared, it is found that the size of a simulation model is highly consistent with the size of an actual molten pool, the maximum error is only 9%, and the reliability of numerical simulation is verified. According to the method, a solid theoretical basis and an effective simulation means are provided for the metal laser cladding process, the process research level is improved, and the development cost is reduced. The method has an important value for practical engineering application, and provides a scientific basis for optimizing the laser cladding technology.

The present invention provides a diamond wire laser welding method and a system. The method comprises: positioning two ends of a broken wire to make the two ends opposite to each other; respectively carrying out section shearing and cleaning on the two ends; acquiring pictures of the two ends by using a visual detection module, detecting and calculating the concentricity of the two ends, and controlling the two ends to automatically adjust the positions thereof to make the two ends concentric; aligning a target heating light spot of a laser generation module to a molten pool part composed of the two ends and a limited space around the two ends, and starting laser heating welding; monitoring a real-time temperature and a real-time crystal phase of the molten pool part, adjusting the heating power of the laser generation module on the basis of the real-time temperature, determining whether the degree of match between a real-time crystal phase image and a target crystal phase image is greater than a first threshold, and if yes, stopping welding; and polishing the weld, performing annealing and completing welding. The welding method of the present invention has a high degree of automation, laser welding is carried out by using the laser generation module, heating is fast, efficiency is high, and accurate and automatic welding is achieved by determining a crystal phase image.

The invention provides laser cutting feeding equipment, and relates to the technical field of laser cutting equipment, the laser cutting feeding equipment comprises a feeding connecting piece, and the feeding connecting piece is provided with a row of lifting supporting pieces; two magnetic control pieces are respectively mounted at the bottoms of the row of lifting support pieces; the two rows of magnetic control pieces are respectively arranged on the feeding connecting piece; the row of lifting supporting pieces are used for supporting to-be-machined plates correspondingly. A path control piece is mounted on the feeding connecting piece; the path control piece is used for controlling the row of lifting supporting pieces to descend to prevent shielding, can support a to-be-machined plate in a rolling mode, prevents abrasion, can automatically descend, prevents adhesion of cutting melt and avoids deformation caused by laser heating, and solves the problems that a feeding sawtooth plate in existing laser cutting feeding equipment is prone to scratching the plate, and the production efficiency is high. And a large number of impurities are easily adhered to the sawtooth plate, so that the sawtooth plate is inconvenient to automatically return to a cutting position according to a cutting path.

The invention provides a temperature control system of an electrostatic adsorption disc and an improvement method of temperature control performance. According to the system, a temperature control layer is arranged in an electrostatic adsorption disc, and the temperature control layer comprises a graphite heat absorption layer and a graphene heat conduction layer; the system further comprises a laser generator and a controller. During working, the laser generator emits heating laser to the graphite heat absorption layer, so that the graphite heat absorption layer efficiently absorbs energy to generate heat, and then the heat is quickly and uniformly conducted to the surface of the electrostatic adsorption disc through the graphene heat conduction layer with ultrahigh heat conductivity. Laser heating is used for replacing traditional resistance heating, graphene heat conduction is used for replacing traditional metal heat conduction, the method has the advantages of being high in temperature switching speed, high in control precision, good in temperature uniformity and the like, and the temperature control performance of the electrostatic adsorption disc can be remarkably improved.

The invention provides an online detection and compensation method for local decarburization of a high-strength spring steel band, which comprises the following steps: arranging an oxygen content sensor in a continuous annealing furnace to monitor oxygen concentration in real time, and marking a potential decarburization risk section; scanning the risk section steel strip by adopting infrared thermal imaging, and generating a carbon distribution map to position a decarburization area; pulse laser heating is conducted on the decarburization area, and methane-argon mixed gas is introduced to achieve in-situ carburization; and finally, local thermal stress is eliminated through high-frequency induction heating. According to the method, decarburization risk dynamic early warning, defect accurate positioning, local efficient carbon supplementation and stress homogenization control are achieved, and the surface quality and fatigue performance of the steel strip are remarkably improved.

The invention relates to a laser in-situ repair high shape-preserving device and method for a thermoplastic composite material. The device comprises a laser heating module for generating a laser beam; the positioning and control module realizes accurate positioning and movement of the laser beam; the material spreading module is responsible for providing supplementary materials; the temperature system control module monitors and adjusts the temperature of the material in a specific temperature interval to ensure that the material is always kept in a semi-fluid state; and the pressurizing shape-preserving module applies pressure to ensure the high shape-preserving repairing effect. The method comprises the following steps: firstly, scanning and positioning a to-be-repaired area; and then, the laser emitting module and the material spreading module are started for synchronous repairing, meanwhile, the material is controlled and ensured to be in a semi-fluid state through a temperature system, and pressurization is applied to achieve shape-preserving curing. The device and the method can effectively repair the surface defects of the thermoplastic composite material, remarkably improve the service life and performance of the component, and are suitable for the fields of aerospace, automobile manufacturing and the like.

The invention discloses a temperature-controllable laser heating device and method, and relates to the technical field of laser heating, and the device comprises a laser generator which is used for generating a laser beam for heating; the triangular prism assembly is arranged on the same side of the laser generator and the detection control module and is used for refracting the laser beams to irradiate the power equipment for heating and refracting infrared radiation generated by the power equipment to irradiate the detection control module; the detection control module is used for detecting the infrared radiation so as to obtain the actual temperature of the heating point of the power equipment, and adjusting the output power of the laser generator based on the actual temperature and the preset temperature so as to control the deviation between the preset temperature and the actual temperature; the laser beam is refracted to irradiate the power equipment for heating, the actual temperature of the heating point is obtained, the output power of the laser generator is adjusted based on the actual temperature and the preset temperature, the device can be used without modification, and the problems of randomness of training content and concealment of examination content are solved.

The invention provides a remanufacturing repair method for generating a high-entropy effect in situ under the synergistic effect of multiple laser beams. When the surface of the damaged TiAl alloy blade is repaired, firstly, a first laser beam A is used for preheating a TiAl alloy in the repairing advancing direction, so that the TiAl alloy is molten to form a molten pool D rich in Ti and Al elements; secondly, a second beam of laser B is used for heating and melting Mo, Nb and Ta mixed powder sent out by the laser cladding head, and a molten pool E rich in Mo, Nb and Ta elements is formed; and along with advancing of the laser B in the repairing direction, the molten pool D and the molten pool E are combined to form a molten pool F rich in Mo, Nb, Ta, Ti and Al elements. And then a third beam of laser C is used for making a spiral line according to a preset route to swing and heat the molten pool F, and the stirring effect is achieved, so that the five elements of Mo, Nb, Ta, Ti and Al are evenly distributed in the molten pool, and the high-entropy effect after element mixing is enhanced. And finally, after the molten pool F is cooled, the MoNbTaTiAl high-entropy alloy coating is formed on the surface of the TiAl alloy. According to the method, the high-entropy effect is generated in situ through the additional elements and the matrix elements, and high-quality repairing of the surface of the TiAl alloy blade can be achieved.

The invention relates to the technical field of material corrosion and protection, discloses a TP2 copper corrosion behavior testing method based on temperature regulation and control, and aims to solve the problem that in the prior art, various physical and chemical parameters in the corrosion process are difficult to synchronously obtain under the same microscale, so that a local corrosion dynamics mechanism cannot be deeply revealed. The core of the system is a coaxial three-function composite probe integrated with thermal, acoustic and electrochemical sensing units, and the coaxial three-function composite probe is matched with a synchronous laser heating module and a multi-physical field synchronous control system. During testing, the probe scans on the surface of a sample, local thermal disturbance is applied to each pixel point, and the interface temperature, acoustic impedance and corrosion rate data of the point are synchronously collected. According to the invention, through high integration in structure and accurate synchronization in time, the space mismatch error of multi-source measurement is eradicated, and multi-physical field distribution images which are accurately corresponding to each other can be obtained in situ and losslessly.

The invention discloses a 3D printing method and a 3D printing device for strong constraint forming, and relates to the field of 3D printing, and a prepared product has an interlayer mortise and tenon joint structure. The front end of the printing opening is provided with a restraining blocking piece, the rear end of the printing opening is provided with a tenon-and-mortise blocking piece capable of rotating and switching, and the two sides of the printing opening are provided with contour restraining pieces for adjusting the extending length to form a restraining space. And the forming material is filled and formed in the constraint space, a negative draft angle groove mortise structure is formed after the forming material is extruded from the mortise and tenon separation blade, and in the layer-by-layer printing process, the groove mortise structure is filled with the forming material, and then an interlayer mortise and tenon structure is formed. A laser heater is installed at the front end of the printing head to preheat a printing path, and a roller is installed at the rear end of the printing head to compact a printed lamellar structure. The method has the advantages that shell constraint forming is carried out on the product contour curved surface, interlayer combination is changed into mortise and tenon joint from traditional adhesion combination, interlayer combination is tighter, the product appearance is good, the forming efficiency is high, and the product performance is better guaranteed.

The invention provides an aerosol generating device and an aerosol generating system. The aerosol generating device comprises: a housing assembly having an accommodating cavity; the accommodating cavity is used for accommodating an aerosol generating product; the laser module is arranged on one side of the accommodating cavity; the laser module is configured to be capable of rotating around the containing cavity so as to heat the aerosol generating product in the containing cavity from different directions. According to the aerosol generating device, the aerosol generating product is heated in a laser heating mode without rotation, so that the aerosol is formed.

The invention belongs to the field of micro-nano manufacturing technology and microelectronic manufacturing, and particularly relates to a method for manufacturing a complex curved surface conformal high-resolution embedded circuit, which comprises the following steps of: firstly, processing a nano groove structure with a specific pattern on a hard curved surface substrate according to a preset path; a metal seed layer is deposited in the groove, then the groove is filled with a conductive material by adopting filling technologies such as precise electroplating / chemical plating, fusion strengthening is generated among various metals by adopting a laser heating mode, and the adhesive force with the hard curved surface substrate groove structure can be further enhanced after the metals are cooled. And the requirements of extremely severe service environments are met. A new solution is provided for low-cost manufacturing of the embedded curved surface circuit which is high in resolution, adjustable in height-width ratio, high in electrical performance, high in adhesive force and capable of combining multiple materials.

The invention discloses a working temperature control method of a Josephson probe and a method for regulating and controlling the thickness of an Nb film, the working temperature of the Nb-based probe is increased to 7.2 K by regulating and controlling the film thickness parameter and controlling the working temperature of the probe, and the highest record of similar probes is created. According to the method for regulating and controlling the thickness of the Nb film, a four-groove quartz tube is selected as a substrate, and after ultrasonic cleaning, a nano needle tip is drawn by adopting a laser heating method, so that a needle tip structure with a clean surface and a controllable geometric structure is obtained; and horizontally fixing the prepared nano needle tip on a probe bracket, depositing a niobium film by adopting a magnetron sputtering process, and controlling the thickness of the Nb film to prepare the Josephson probe. According to the invention, the dependence of the probe on an extremely low temperature environment is obviously reduced, the limitation of the original process is broken, the available film thickness range is effectively widened, the preparation yield and the performance consistency of the probe are obviously improved, and a reliable device basis is provided for the practical development of near-field microwave imaging and quantum sensing technologies.

The invention belongs to the technical field of temperature characterization, and discloses a semiconductor device temperature characterization method and system. The semiconductor device temperature characterization scheme provided by the invention comprises the following steps: bearing a semiconductor device and adjusting the position of the semiconductor device by using a device bearing and adjusting unit; respectively emitting detection laser and heating laser by using a detection laser emitting unit and a pumping laser emitting unit, and irradiating the detection laser and the heating laser to a test area of the semiconductor device; collecting and recording a temperature measurement signal reflected by the semiconductor device by using a temperature measurement unit; the device operation control unit is used for providing an electric signal for the semiconductor device and synchronously triggering the temperature measurement unit to record a temperature measurement signal so as to ensure the synchronization of online work and temperature measurement of the semiconductor device; and obtaining transient temperature characterization information of the semiconductor device based on the temperature measurement signal by using the main control unit. According to the invention, temperature characterization of nanosecond-level time and submicron-level spatial resolution of the semiconductor device can be realized.

The invention discloses an aerosol generating device and a heating control method thereof.The aerosol generating device comprises a heating body, the heating body is a microwave heating body or a laser heating body, and the heating control method comprises the steps that when a heating starting signal for an aerosol generating substrate contained in the aerosol generating device is detected, the heating starting signal is sent to the aerosol generating substrate; and controlling the heating body to heat the aerosol-generating substrate, so that the temperature of the aerosol-generating substrate rises from the current temperature to the preheating temperature and is kept before the suction action occurs. When it is detected that the suction action occurs, the heating body is controlled to heat the aerosol-generating substrate, so that the temperature of the aerosol-generating substrate reaches the corresponding target temperature and is kept before the next suction action occurs. Wherein the target temperature corresponds to the current suction opening number, and the target temperature of the first opening is larger than the preheating temperature and smaller than the target temperature of other opening numbers. The problem that the mouth is scalded when the first mouth of aerosol is smoked can be avoided, and the smoking experience is improved.

The invention relates to the technical field of packaging equipment, in particular to semiconductor laser packaging equipment and a using method thereof.The semiconductor laser packaging equipment comprises a rack, a packaging table and a laser heater and further comprises an electric push rod, an air exhaust assembly and a plugging assembly, the electric push rod is arranged on the rack, and the air exhaust assembly is arranged at the output end of the electric push rod; the plugging assembly is arranged in the air exhaust assembly, the air exhaust assembly comprises an adsorption part, an air hole is formed in the adsorption part and is formed below the plugging assembly, the air exhaust assembly generates negative pressure and adsorbs a chip when being powered on and started, and the electric push rod drives the air exhaust assembly to drive the plugging assembly and the chip to move downwards when being powered on and started. Through the arrangement of the air exhaust assembly and the plugging assembly, the situation that stress is concentrated on the bonding surface of the chip and the welding flux due to local cooling can be avoided, gaps generated when the welding flux is molten can be eliminated through vibration generated by impact, and the quality and reliability of packaged products are effectively improved.

The invention discloses a method for testing the thermophysical property of a rare earth aluminate glass melt. The density, the viscosity and the surface tension of the high-temperature melt of La2O3-Al2O3-ZrO2 series glass are tested by adopting a container-free air suspension technology. The method has the remarkable advantages that a small amount of raw materials can be used and rapid heating and cooling can be realized by the container-free air suspension technology, crucible pollution and devitrification are avoided, and the measurement precision is ensured; the temperature control range of laser heating is from 200 DEG C to 3200 DEG C, and the physical property data of the La2O3-Al2O3-ZrO2 glass in a deep supercooling interval can be accurately measured; the doping amount of ZrO2 has obvious influence on the viscosity and the surface tension of the glass, and important reference is provided for component design and process optimization of the high-performance glass of the system; experimental results show that along with the increase of the ZrO2 content, the glass is easy to crystallize in the cooling process, and the physical property data of a low-temperature interval cannot be measured, but the measurable range can be effectively extended by adopting the method disclosed by the invention, and a reliable testing means is provided for the physical property research of the rare earth aluminate glass and the preparation of high-performance glass.

The invention discloses a thermoplastic composite material double-laser laying and winding head device and a processing method. A torque motor is connected with a composite material tape reel; one end of the tension adjusting mechanism is connected with the composite tape reel, and the other end is connected with the pressure cylinder; the support is connected with the side surface of the tension adjusting mechanism 4; the re-conveying mechanism is fixed to the middle of the tension adjusting mechanism, the first laser head and the second laser head are fixed to the bottom of the tension adjusting mechanism, and the shearing mechanism is located between the re-conveying mechanism and the pressing mechanism. The re-conveying mechanism can be used for re-conveying the composite material strip to a proper position below the pressing mechanism after the composite material strip is cut off; the shearing mechanism is used for shearing the composite material strip when the composite material strip needs to pass through the jump point; the pressing mechanism attaches the composite material strip to the surface of a workpiece in a rolling mode, the shearing mechanism shears the composite material strip, and the composite material strip is laid and wound on the workpiece to form a base material; the pressing mechanism is used for pressing the composite material strip on the base material; the side face of the pressing mechanism is connected with a pressing roller cooling water faucet. According to the invention, the thermoplastic composite material is heated through double laser, so that the reliability of interlayer bonding of the composite material can be improved, the interlayer strength of the thermoplastic composite material is improved, and the laying and winding quality and efficiency of the thermoplastic composite material are improved.

The invention discloses an oxide electrode for a lithium ion battery and a preparation method of the oxide electrode, and belongs to the technical field of lithium ion batteries. The preparation method of the titanium-niobium oxide negative electrode material comprises the following steps: weighing corresponding titanium dioxide powder and niobium pentoxide powder according to the chemical dosage ratio of TixNbyO2x + 2.5 y, putting the titanium dioxide powder and the niobium pentoxide powder into a mortar, fully grinding, uniformly mixing to obtain a precursor, uniformly coating and flatly paving the precursor on a slide, putting the slide under laser heating equipment, and carrying out high-temperature sintering to obtain the titanium-niobium oxide negative electrode material. And finally, preparing the product into a pole piece assembled battery, and carrying out electrochemical test on the pole piece assembled battery. According to the method, the solid-phase synthesis time is remarkably shortened through laser heating, the rate capability and the cycle performance of the battery are improved, and the preparation efficiency of the material is improved on the basis of ensuring high-quality formed phase and fine and uniform particle size.

A thermo-optical plane source (TOPS) technique can be used to measure the thermal conductivity of materials. This high-throughput, simple, and efficient technique measures thermal conductivity with minimal sample preparation and limited restrictions on sample shape and geometry. Moreover, the TOPS technique works on solids, liquids, gels, and pastes with no change in implementation. The TOPS technique uses laser heating to induce a steady-state temperature rise in a material and infrared thermography to measure the corresponding temperature rise. Fourier's law is applied to directly measure thermal conductivity, rather than thermal diffusivity or effusivity, without any need to know the sample's density or heat capacity. It can measure thermal conductivities ranging from 0.05 W m-1 K-1to 60 W m-1 K-1at room temperature.

The invention provides a wiredrawing experiment device and method. The wiredrawing experiment device comprises a heating device, a wiredrawing die base, a tension adjusting device and a wire guide wheel which are sequentially arranged between an original wire roller and a take-up device. The heating device is provided with a heating device for heating the metal wire, and a temperature sensor is further arranged near the metal wire; the temperature sensor adopts a thermocouple, a platinum resistance thermometer and an infrared temperature sensor. The heating device comprises a heat preservation shell, and a resistance heating device or an inductance coil heating device or a laser heating device is arranged in the shell in the moving direction of the metal wire. By means of the device and method, the optimal machining parameters of the metal wires of different materials and different machining diameters can be obtained, and the optimal machining parameters comprise the heating temperature, the temperature distribution field, the wire drawing speed and other optimized technological parameters. And the influence of other disturbance factors on the experiment result can be reduced as much as possible, so that the correlation between the experiment result and main input parameters is higher.

The invention belongs to the technical field of mechanical part machining, and particularly relates to automatic feeding and discharging laser cutting equipment for flange plate production. The automatic feeding and discharging laser cutting equipment comprises a workbench, a slag discharging opening is formed in one side of the upper end of the workbench, a recycling opening is formed in one side of the lower end of the workbench, and the recycling opening is in an inverted right triangle shape and communicates with an inner cavity of the slag discharging opening; a discharging cleaning assembly is arranged in an inner cavity of the slag discharging opening, a feeding cutting assembly is arranged above the slag discharging opening and used for cutting an alloy steel plate machining flange plate, and the problems that due to cutting of existing laser cutting equipment, a large amount of waste residues generated through laser heating gasification can be generated, the waste residues are accumulated in a workbench for a long time, and the waste residues generated through laser heating gasification can be mutually bonded and blocked; if the flange plate is cleaned in time, the penetrability of the laser cutter can be influenced by waste residues, and after the flange plate is cut, the alloy steel plate, the flange plate and waste materials need to be separated and recycled, so that the operation is tedious, and the production efficiency of the flange plate is influenced.

The invention relates to the technical field of machining, in particular to a polishing device based on magnetorheological and a polishing method based on the polishing device.The polishing device comprises a supporting rotary disc, a laser heating module, a magnetorheological fluid supply assembly and a sleeve structure movably arranged above the supporting rotary disc. A mounting cavity used for containing a workpiece is defined by the supporting rotary disc and the sleeve structure, the inner wall of the sleeve structure is used for forming a magnetorheological fluid channel with the to-be-polished surface of the workpiece, and the sleeve structure is provided with a magnetic module to form a magnetic field. The magnetorheological fluid supply assembly is used for supplying magnetorheological fluid to the magnetorheological fluid channel so that the magnetorheological fluid can polish the to-be-polished surface of the workpiece under the action of a magnetic field, and the laser heating module is arranged on one side of the preset mounting cavity and used for heating the to-be-polished surface of the workpiece before polishing. The to-be-polished surface of the workpiece is heated and softened before magneto-rheological machining, so that materials on the surface of the workpiece are easier to remove, and the polishing efficiency is improved.

The invention pertains to a deposition head (200) for automated layup of pre-impregnated fibers (110) onto a deposition surface (101) comprising a laser heating device in the vicinity of the deposition site via an optical device (250) and comprising a device adapted to adjust the positioning of said optical device relative to the deposition site in order to obtain heating conditions adapted according to the intended lay up operation.

The invention discloses composite material laser welding equipment and a welding method, and belongs to the field of laser printing, the composite material laser welding equipment comprises a base plate, a wire feeding mechanism, a rotary shearing mechanism, a rolling mechanism and a laser heating mechanism are installed on the base plate, the laser heating mechanism comprises a first dovetail groove sliding table and a second dovetail groove sliding table, and the second dovetail groove sliding table is vertically and fixedly installed on the base plate; the first dovetail groove sliding table is located below the second dovetail groove sliding table, a first connecting plate is fixedly arranged on a carriage of the second dovetail groove sliding table, the first dovetail groove sliding table is fixedly installed on a second connecting plate in an obliquely downward mode, and the end, close to the rotary shearing mechanism, of the second connecting plate is hinged to the first connecting plate through a first connecting rod. And the other end of the second connecting plate is connected with the first connecting plate through a telescopic adjusting structure, a laser head is fixedly arranged on a dragging plate at the bottom of the first dovetail groove sliding table, the angle, height and focusing position of a laser beam can be controlled, and the welding requirements of composite materials of different shapes and sizes are met.

A coiling machine comprises a laser heater which emits laser light to a wire formed into a helical shape, thereby heating a portion of the wire, and a cutting unit which cuts a site of the wire heated by irradiation with the laser light. An output density of the laser light is greater than or equal to 10 W / mm2 and less than or equal to 100 W / mm2.