52results about "Electron beam welding apparatus" patented technology

The present application relates to the technical field of electron beam welding, in particular to a tube sheet welding tool and a welding method, the welding tool comprises an inner support, a backing ring and a heat dissipation assembly, the inner support supports the pipe opening of the connecting pipe, so that the pipe opening of the connecting pipe is not prone to collapse during the welding process, the backing ring is supported on the side of the tube sheet away from the to-be-welded part to block and dissipate heat on the back side of the weld, so as to avoid melting through on the back side of the weld, and the control of the weld width and the penetration depth is realized, at the same time, the heat dissipation assembly is attached to the side of the backing ring away from the to-be-welded part to dissipate heat on the back side of the weld, so as to avoid the deformation of the tube sheet during the welding process, the cooperation of various structures ensures the welding quality and improves the fusion rate; the tube sheet welding method adopts the above welding tool and adopts the welding sequence of spot welding, pre-welding and formal welding, so as to avoid the collapse of the pipe opening of the connecting pipe during the welding process, and the weld width and the penetration depth are easy to control, and the welding quality and the fusion rate can be effectively improved.

The application provides a cavity structure part annular electron beam welding joint design method, which comprises the following steps: tilting the angle of the radial ring weld of a part along the part axis direction clockwise by a preset angle, so that the closest distance of the beam current to the flange edge of the part casting body on the side of the radial ring weld is increased, the welding lock bottom is also increased in thickness due to the tilt of the weld, the part can be prevented from being damaged during welding, and the risk of splashes generated by penetrating the welding lock bottom is reduced; a filler platform is arranged on the side of the cover plate at the radial ring weld, which can help quickly find the weld position in the equipment observation system and facilitate welding; the axial ring weld of the part is offset to one side of the part casting body by a preset distance, so that the weld is changed from a no-welding lock bottom end face weld to a welding lock bottom butt joint weld, a boss is added to the inner wall of the cover plate to form a butt joint structure with the casting body, so that non-penetration welding can be ensured, and welding splashes in the part inner cavity are prevented.

A method for producing a welded metal blank (16) includes cutting a first initial metal sheet (1) and a second initial metal sheet (3) from a first and second metal strip (4); joining the first and second initial metal sheets (1,3) by welding so as to obtain an initial welded metal blank (9), the initial welded metal blank (9) comprising a weld joint (10) joining the first and the second initial metal sheets (1,3); and cutting said initial welded metal blank (9) by a process involving metal melting so as to obtain at least one final welded metal blank (16) comprising a first metal blank portion (17) and a second metal blank portion (18) joined by a weld joint portion (19) consisting of a portion of the weld joint (10) obtained during the joining step.

This invention discloses a vacuum electron beam deep penetration welding method for refractory metals, belonging to the field of welding technology. The method includes: butt-fitting pre-treated refractory metal plates with a butt gap controlled at 0.05~0.1mm; performing vacuum electron beam welding; and offsetting the electron beam focus from the upper surface of the plate towards the plate thickness by 0.5~1mm. After welding, a low-temperature heat treatment is performed, followed by furnace cooling. This invention overcomes the contradiction between increasing the penetration depth of refractory metals and joint embrittlement, achieving a balance between increasing penetration depth and protecting joint performance.

The application discloses a vacuum electron beam welding method of a heterogeneous metal electromagnet blank, and the sleeve ring, the magnetic conducting ring, the magnetic shielding ring and the stop iron are assembled into an integrated whole through design of a welding mandrel and a welding clamp, three welding seams are designed, and welding of each component is completed by adopting different welding sequences; the scheme ensures that there are no defects such as cracks and incomplete fusion in the welding seam of the heterogeneous metal electromagnet blank, meets the requirements of a first-grade welding seam of a relevant standard, simultaneously improves the welding deformation of the electromagnet blank, and ensures that the coaxiality of the electromagnet blank after welding meets the subsequent machining requirements.

This invention discloses a novel welding machine, comprising: a welding frame, the welding frame including a support frame, a sealed door on the front of the support frame, a welding chamber at the upper end of the inner cavity of the support frame, and a welding table at the bottom of the inner cavity of the welding chamber. This invention belongs to the field of welding machine technology. The purpose of this invention is to solve the problems of traditional hot cathode electron beam welding machines in the prior art, where the hot cathode requires continuous preheating, has a long start-up time, and still needs to maintain a high temperature in standby mode. The technical effect achieved is: using a directional carbon nanotube array microbeam emitter as a cold cathode, utilizing the field emission principle of carbon nanotubes, an electric field is applied between the grid and the cathode to allow electrons to escape from the tip of the carbon nanotube through quantum tunneling effect, without heating the cathode to a high temperature, achieving millisecond-level instantaneous start-up, solving the drawback of traditional welding machines requiring 5-10 minutes of preheating, and significantly improving work efficiency and equipment response speed.

The application relates to the technical field of space storage tanks, in particular to a spaceflight storage tank welding size compensation positioning ring, a spaceflight storage tank comprising a shell assembly and a management device assembly, the positioning ring comprising a radial ring seam welding area, an axial circular welding area and a transition assembly area, wherein: the shell assembly and the management device assembly are pre-assembled; the transition assembly area of the positioning ring is arranged between the shell assembly and the management device assembly; the positioning ring is integrally welded and fixed with the shell assembly through the radial ring seam welding area and is integrally welded and fixed with the management device assembly through the axial circular welding area. The application realizes the welding of the transition piece of the storage tank shell and the management device by welding the positioning ring and the shell in the radial ring seam and welding the management device in the axial circular seam, so that the storage tank satisfies high-precision and high-strength welding forming, and the management device and the shell maintain a high-precision structure size and shape-position size relationship.

This utility model discloses a titanium alloy ingot welding device, belonging to the technical field of welding devices. The titanium alloy ingot welding device includes: a welding platform with a movable groove; a power component disposed on the movable groove; a clamping component disposed on one side of the power component, the side of which is used to clamp the component containing the titanium alloy ingot to be welded; the power component drives the clamping component to rotate the component containing the titanium alloy ingot to be welded; multiple rotating support components disposed on the movable groove for supporting the component containing the titanium alloy ingot to be welded; the power component and the rotating support components move through the movable groove to achieve welding of titanium alloy ingots of different lengths. This utility model provides a titanium alloy ingot welding device that fixes the titanium alloy ingot to be welded on the device, allowing all ingots to be welded in a single furnace sealing operation.

An additive manufacturing system for producing a component includes a deposition assembly having a deposition head through which melted feedstock material is deposited, and a compression rig comprising a compression head supporting an inside roller, an outside roller opposing the inside roller, and a top roller, the inside roller applying a compressive load onto an interior side surface of the component, the outside roller applying a compressive load onto an exterior side surface of the component, and the top roller applying a compressive load onto a top surface of the component.

The utility model relates to spring collet technical field, concretely relates to a spring collet, including collet, locking sleeve and spacing semicircle cover, locking sleeve sets up on collet, spacing semicircle cover sets up on collet, when clamping the work piece of different outer diameter, only need to replace spacing semicircle cover of different inner diameter, guarantee work piece clamping precision to reach the clamping effect to work piece, simultaneously need not to replace collet to reduce spring collet manufacturing cost.

The application provides a method for controlling softening of a heat-affected zone of an electron beam welded joint. The method comprises: setting an adjustable cooling tool in a vacuum environment, controlling the temperature of the heat-affected zone of the base material during welding by controlling a cooling tool module; welding the workpiece by using an electron beam, and selecting heat treatment after welding according to the requirements of the workpiece to optimize the microstructure; the cooling tool module adopts a pure copper plane structure, has a built-in "serpentine" water pipeline, is equipped with a water flow adjusting assembly, and realizes accurate control of the cooling intensity. By combining active cooling with process optimization, the method effectively inhibits the grain coarsening and softening of the heat-affected zone of the welded joint, and significantly improves the mechanical properties and service life of the welded joint.

This application provides a welding apparatus for electron beam welding of an aero-engine slide rail assembly. The slide rail assembly includes a slide rail body and a DU bushing. The apparatus includes: a base plate with a central hole, on which the slide rail body and the DU bushing are placed after assembly; a positioning block disposed on the base plate; support plates disposed at both ends of the base plate; a main shaft disposed below the base plate, one end of which passes through the central hole and connects to the positioning block; a balance block disposed on the base plate, located between the slide rail assembly and the support plate; and a cylindrical pin, one end of which passes through the support plate and contacts the balance block. The cylindrical pin applies force to the balance block, allowing it to adhere tightly to the slide rail body, and the DU bushing is tightly attached to the edge of the positioning block. This application also provides a welding method for electron beam welding of an aero-engine slide rail assembly.

The present invention relates to a welding method comprising the following steps: joining a first joint (1) to a second joint (2) by a pressure welding process, wherein, after joining, a weld bead (4) is formed at the edge of the joint of the first joint (1) and the second joint (2) protruding from the surfaces (3) of the joined first joint (1) and the second joint (2); then remelting the weld bead (4) by a fusion welding process, such that the bulge formed by the protruding weld bead (4) is smoothed and / or leveled. The present invention also relates to a welding machine (7) for performing such welding method.

The present application relates to the technical field of welding, in particular to an electron beam welding path adjusting method and device, comprising the steps of: obtaining weld geometry data of a workpiece to be welded, scanning the workpiece to be welded according to the weld geometry data to obtain spatial data of a welding position; layering the spatial data to obtain preliminary path data, and controlling a welding torch to perform preliminary welding on the workpiece to be welded according to the preliminary path data; obtaining secondary electron signals in the preliminary welding process, generating feedback data according to the deviation of the secondary electron signals and the preliminary path data; adjusting welding parameters of the welding torch according to the feedback data, and controlling the welding torch to perform secondary welding on the workpiece to be welded until the welding is completed. The present application improves the welding seam centering ability and energy deposition uniformity of the electron beam on complex curved surfaces, large-thickness components and workpieces with geometric and assembly deviations, effectively ensuring the consistency and reliability of the welding seam forming quality, internal compactness and mechanical properties.

An embodiment of the present disclosure relates to a method for controlling etch depth by providing localized heating across a substrate. The method for controlling temperature across a substrate can include individually controlling a plurality of heating pixels disposed on a dielectric portion of a substrate support assembly. The plurality of heating pixels provide a temperature distribution on a first surface of a substrate disposed on a support surface of the dielectric portion. The temperature distribution corresponds to a plurality of portions of at least one grid on a second surface of the substrate to be exposed to an ion beam. Further, the temperature can be controlled by individually controlling light emitting diodes (LEDs) of an LED array. The substrate is exposed to the ion beam to form a plurality of fins on the at least one grid. The at least one grid has a depth distribution corresponding to the temperature distribution.

The invention relates to a method for providing implants in the surface layer of a substrate, wherein a layer of particles is deposited on the surface of the substrate, and the layer of particles is exposed to pulses of an energy beam to form the implants in the surface layer of the substrate. According to the invention a further layer of particles is deposited on the substrate in which implants are formed, and the further layer of particles is exposed to pulses of an energy beam to form additional implants in the surface layer of the substrate. The invention also relates to a roll, such as a skin pass roll formed using this method, and to flat material rolled using such a roll.

This invention discloses a method for unsteady-state ultrasonic standing wave-assisted control of fusion welding. It utilizes dual ultrasonic transducers to perform dual-wave interference, forming an ultrasonic standing wave. This ultrasonic standing wave is introduced into the fusion welding process, and its action on the welding area allows for real-time control of the microstructure and properties of different parts of the weld joint. This forms a unsteady-state ultrasonic standing wave with controlled directional movement of the wave packet nodes, which is then used to regulate the microstructure and properties of the weld joint. This invention enables control over the direction and speed of movement of the unsteady-state ultrasonic standing wave wave packet nodes, allowing for regional control of the microstructure and properties of different parts of the weld joint, resulting in a more uniform joint composition and microstructure. It can solve problems such as undercut, burn-through, high residual stress, severe deformation, and columnar crystals that reduce joint performance during the welding of thin materials or fine wires, refining grains and improving joint performance. It can achieve controllable connections from the centimeter scale to the micrometer scale.

The present invention relates to a method of manufacturing a guide roller (1) for hot wire rolling, the method comprising the steps of providing a guide roller (1) made of an Al alloy, the guide roller (1) comprising a wire guiding surface (2), applying a coating (3) onto at least part of the wire guiding surface (2) by means of a metallic wire Direct Energy Deposition (DED) operation and / or a metallic powder DED operation. The present invention also relates to a guide roller (1) and a wire rolling machine.

The disclosure relates to an alloy having the following composition, by weight:16.5%≤Cr≤25.%11.%≤Mo≤18.%2.%≤W≤7.%Fe≤1.%Mo+W≤-0.5×(Cr+Fe)+30⁢%Mo+W≥-0.5×(Cr+Fe)+25⁢%Ti+Ta≤0.8%0.01%≤Si≤0.75%0.01%≤Al≤0.35%0.01%≤Mn≤0.35%Ca≤0.005%Mg≤0.005%Nb≤0.01%0.001%≤C≤0.05%0.001%≤N≤0.05%S≤0.003%P≤0.005%optionally, 0.0010%≤rare earths≤0.015%, the silicon content being less than or equal to 0.25% in the presence of rare earths at a content comprised between 0.0010% and 0.015%,the rest being nickel and unavoidable impurities resulting from the manufacturing, the nickel content being greater than or equal to 54%.

A method is described for producing a material layer (12) from a first metal material (14) and from a second metal material (16). The first metal material (14) and the second metal material (16) are provided in a process area, wherein the first metal material (14) and the second metal material (16) each assume a solid physical state. An energy beam is then directed onto a portion to be liquefied of the first metal material (14). Furthermore, the energy beam is directed onto a portion to be liquefied of the second metal material (16). In addition, the portions to be liquefied are introduced into a common melting bath (44) and mixed. As an alternative, the portions to be liquefied are heated by means of the energy beam until liquefaction and mixed. Moreover, a device for producing a material layer (12) from the first metal material (14) and from the second metal material (16) is proposed, which device is configured to carry out a method of this type.

The application discloses a kind of for space electron beam welding test device, comprising: equipment controller, inside the box is placed, with moving mechanism, infrared thermal imaging detector and electron beam gun connection;Mobile control instruction is sent to moving mechanism, and the detection of structural temperature field distribution performance;Electron beam gun, the electron beam generated, for the welding, cutting or additive forming on test workpiece after heating and melting of metal wire;Excess protection device is placed below electron beam gun, to prevent metal droplet on test workpiece from flying out.Infrared thermal imaging detector, the cutting, welding and additive process of electron beam gun are photographed;Temperature is measured;Moving mechanism moves according to mobile control instruction;Radiation plate radiates heat generated to the outside of box;Test workpiece is placed on the upper surface of excess protection device, excess protection device is connected with moving mechanism, moves with moving mechanism, drives test workpiece to move, realizes the processing of test workpiece.

We describe a system for use in an apparatus for producing a three-dimensional workpiece using an additive layer manufacturing technique, the system comprising: an irradiation unit configured to selectively irradiate an irradiation plane with an irradiation beam, and a control unit coupled to the irradiation unit and configured to control the irradiation unit to modulate, as a function of a local process parameter when producing the three-dimensional workpiece, an irradiation beam property of the irradiation beam.

The present application relates to the technical field of electron beam welding, in particular to a stainless steel electron beam welding device with small heat affected zone, comprising a box, a vacuum system, an electron gun system and a wire feeding system; further comprising a lifting mechanism installed in the welding chamber of the box, a cross slide installed on the lifting mechanism, the lifting mechanism being used for driving the cross slide to lift, a platform installed on the cross slide, a heat-conducting bottom plate installed on the platform, a plurality of heat-conducting columns installed on the heat-conducting bottom plate in a matrix, adjacent heat-conducting columns being in contact with each other, switchable heat insulation ends being installed at the top ends of the heat-conducting columns, the heat insulation ends being switchable between a heat insulation state and a heat conduction state, the plurality of heat insulation ends forming a flush support surface, the support surface being used for supporting a workpiece; the device has a heat affected zone control structure, which reduces the heat affected zone of the workpiece and the deformation of the workpiece after welding, and improves the welding quality.

This invention provides a method for electron beam welding and post-weld synergistic strengthening of dissimilar materials 05Cr17Ni4Cu4Nb steel and HR-2 steel. The method includes the following steps: Step 1: Mechanically grinding and cleaning the welding area of ​​the plates to be welded with anhydrous ethanol to expose the metallic luster; Step 2: Precision assembling of the two plates; Step 3: Welding a laser locating weld on each side of the plates; Step 4: Single-pass deep-penetration electron beam welding of the plate joint area under vacuum conditions, selecting appropriate welding parameters; Step 5: Post-weld cooling in a vacuum chamber; Step 6: Vacuum aging heat treatment of the weldment, followed by furnace cooling to room temperature. This invention employs a combined process of laser locating welding, vacuum electron beam welding, and post-weld heat treatment. Through joint design and welding parameter control, it solves the problems of cold cracking and uneven mechanical properties in thick dissimilar steel welding. The weld and heat-affected zone exhibit uniform microstructure, refined grains, and excellent mechanical properties, making it suitable for critical components of thick dissimilar steel plates used in nuclear power pressure vessels, hydrogen storage tank heads, and aerospace applications.

A method for welding conductor ends arranged on a component in a conductor end arrangement, carried out during series production of a component of an electrical machine by: A) determining a position of predetermined conductor ends of the conductor end arrangement to be welded and B) arranging a welding device at the conductor ends based on the position determined in step A). Step A) includes performing a non-contact position detection to detect the position of the conductor end, and when the position has been detected, determining the detected position as the position for carrying out step B) and storing the detected position for the predetermined conductor ends, and when the position has not been detected, determining the position for carrying out step B) based on a position previously stored for the predetermined conductor ends to be welded.

A printer, including a conveying member, a printing member and a cutting member. The conveying member is configured to convey a printing substrate in a Y-axis direction. The printing member includes a first driving mechanism and a print head. The first driving mechanism is provided above the conveying member, and is configured to drive the print head in an X-axis direction. The print head is configured to perform printing on the printing substrate from above. The cutting member includes a second driving mechanism and a cutter. The second driving mechanism is provided above the conveying member, and is configured to drive the cutter in the X-axis direction. The cutter is configured to cut the printing substrate from above.

Provided is a means to suppress a decrease in the amount of thermal strain when production line speed is increased, and to both improve production efficiency and stabilize an iron loss improvement effect during operation. The means is a method of surface processing a metal material or a metal sheet including irradiating the surface of the metal material or the metal sheet with an energy beam under at least two focus settings.

This invention discloses a method for synergistic control of residual stress and microstructure in a pulsed current-assisted metal additive manufacturing process, belonging to the field of metal material additive manufacturing technology. The method includes the following steps: S1, setting the process parameters for metal additive manufacturing and planning the area and timing for synchronously applying pulsed current; S2, during the layer-by-layer deposition process of the component, when a high-energy laser beam, electron beam, or electric arc acts on the deposition area to form a molten pool, a pulsed power supply is triggered by a synchronous control unit to apply a pulsed current with preset parameters to the molten pool and the heat-affected zone; S3, through the synergistic effect of the electroplasticity and Joule heating of the pulsed current, thermal stress relaxation, grain refinement, and microstructure homogenization are simultaneously achieved during the manufacturing process. This invention, by employing the above method and precisely controlling the electrical pulse parameters, simultaneously achieves stress relaxation and solidification microstructure optimization during the manufacturing process, significantly improving the dimensional stability, fatigue life, and mechanical properties of the formed component.

This invention relates to the field of electron beam welding technology, specifically to an electron beam welding process for ultra-thick titanium alloy structural components. The process includes the following steps: placing a beam-inducing auxiliary process block and a beam-retracting auxiliary process block at both ends of the welding position on the workpiece to be welded. The thickness of both the beam-inducing and beam-retracting auxiliary process blocks is greater than that of the workpiece to be welded. Sequentially performing initial welding, stable welding, and final welding on the upper surface of the beam-inducing auxiliary process block, the welding surface of the workpiece to be welded, and the upper surface of the beam-retracting auxiliary process block, respectively. The initial welding current is a continuous current that first increases and then stabilizes; the stable welding current is a constant current; and the final welding current is a continuous current that first increases and then decreases. The purpose of this electron beam welding process for ultra-thick titanium alloy structural components is to solve the problem of the difficulty in controlling the melt flow and forming of welds in ultra-thick titanium alloy structural components.

Provided is a means for suppressing a decrease in thermal strain when production line speed is increased and achieving both an increase in production efficiency and stabilization of iron loss improvement effects during operation. Said means is a method for processing the surface of a metal material or a metal sheet by irradiating an energy beam at the surface of the metal material or the metal sheet, wherein the energy beam is irradiated using at least two focus settings.