100 results about "Friction welding" patented technology

The present application relates to the technical field of welding of metal materials, and particularly relates to a method for realizing steel-copper alloy double-metal connection of a plunger cap and a product, which comprises a steel plunger cap base body after mechanical processing and quenching and tempering heat treatment, a copper alloy plunger cap lining plate; setting process parameters of a friction welding machine tool; clamping the steel plunger cap base body and the copper alloy plunger cap lining plate in the friction welding machine tool; starting the friction welding machine tool, the steel plunger cap base body approaching the copper alloy plunger cap lining plate, the two abutting surfaces being attached, and then friction welding is performed; after the friction welding is completed, the obtained steel-copper alloy double-metal connected plunger cap blank is cooled; turning processing is performed on the plunger cap blank; the plunger cap blank is detected to check the steel-copper alloy double-metal connection interface welding condition of the plunger cap blank after the friction welding; at least one sample of the plunger cap is extracted for metallographic detection, the steel-copper alloy double-metal connection interface morphology of the plunger cap blank is observed, and the welding depth of copper to the steel base body is measured.

The application discloses a kind of robot friction stir welding force-position hybrid control method, it is related to robot welding control technical field, comprising the following steps: step S10 establishes the hybrid strategy model based on constant displacement control and constant pressure control, the trajectory deviation caused by flexible deformation is compensated by robot dynamic offset function;The constant displacement control monitors welding depth in real time by laser sensor, the laser sensor is installed in 45° oblique direction to the outer wall of motorized spindle, and the collection point is located in the front side of the welding advancing direction, to avoid the interference of flash;The constant pressure control is collected axial upset force by six-dimensional force sensor, and force feedback type impedance control strategy is adopted.The robot friction stir welding force-position hybrid control method compensates the flexible deformation of robot by dynamic offset function, combined with the hybrid strategy of constant displacement and constant pressure control, solves the problem of uneven weld forming under single control mode.

This application provides a method for reconstructing an adaptive machining process model for a linear friction welded integral bladed disk, comprising: dividing the blades of the integral bladed disk along the stacking axis into an actual surface region B1, a transition region B2, and a theoretical surface region B3, wherein the upper boundary of the transition region B2 is denoted as S_up, and the lower boundary is denoted as S_down; based on the actual surface region B1, the theoretical blade M_NOM is registered using an iterative nearest-point algorithm, and the blade is moved according to the registration result to obtain the registered and moved blade model M_FIT; based on the upper boundary S_up and the lower boundary S_down of the transition region B2, the adaptive machining transition surface RE_S2 is reconstructed; the actual surface region B1 on M_FIT, the adaptive machining transition surface RE_S2, and the theoretical region B3 on the theoretical blade M_NOM are combined to form an adaptive machining process model for the integral bladed disk blades; each blade is adaptively processed sequentially until all blades on the bladed disk are processed to form the final adaptive machining process model for the integral bladed disk.

The utility model discloses a kind of stirring friction welding main shaft structures with back-drawing function, including the rotating main shaft of hollow structure, the outer wall of rotating main shaft is equipped with external gear, external gear is equipped with driving mechanism, and external gear rotates to drive rotating main shaft to rotate, the driving mechanism is arranged at external gear, the bottom of rotating main shaft is equipped with stirring needle, the inside of rotating main shaft is equipped with the stretching mechanism for pulling stirring needle to move up and down, one end of stirring needle extends rotating main shaft, the other end is connected on stretching mechanism in rotating main shaft and can rotate relative to stretching mechanism, and the radial limit of stirring needle and rotating main shaft is positioned.The utility model in the present application drives gear by external driving assembly to drive rotating main shaft to rotate, except ball screw pair inside, no other components, heat dissipation is quite dispersed, without water cooling.

The application belongs to the technical field of friction stir welding clamping tool, and particularly relates to a magnesium alloy sheet high-speed friction stir welding clamping device, which comprises a positioning base, a sheet positioning frame is detachably fixedly connected to the center position of the positioning base, negative pressure pieces are symmetrically arranged on the lower surface of the positioning base, a negative pressure head fixedly and conductively connected with the negative pressure pieces is arranged on the sheet positioning frame, a dynamic micro cooling piece is arranged at the middle position of the sheet positioning frame, the dynamic micro cooling piece comprises a water-cooled sliding block, the water-cooled sliding block is used for moving and cooling the moving welding point of the sheet, the water-cooled sliding block in the dynamic micro cooling piece can move following the friction stir welding point between the sheet, so that the timeliness of welding cooling is improved, and the welding cooling efficiency is improved.

This invention discloses a method for interface connection and self-cleaning of welding head in aluminum alloy friction stir welding, which includes the following steps: Step (1) Selecting a fixing method according to the shape characteristics of the aluminum alloy base plate to ensure that the aluminum alloy base plate is flat, tight and without warping; Step (2) Trial running the welding equipment, moving the stirring head to perform tool setting and zeroing, and setting a predetermined welding trajectory for trial welding; Step (3) Setting the aluminum alloy friction stir welding parameters, including stirring head rotation speed, feed speed, tilt angle and insertion depth; Step (4) Analyzing the welding effect according to the aluminum plate and adjusting the welding parameters; Step (5) Cleaning the residual oxides on the friction stir welding head; The beneficial effect is that this method can solve the problem of interface connection and self-cleaning of welding head in aluminum alloy friction stir welding, fill the current gap in aluminum alloy friction stir welding process and welding head cleaning, and has good versatility.

The application discloses a welding and heat treatment method for improving the rotatability of a magnesium alloy weld, and belongs to the technical field of metal plastic working. The method is used for solving the problems of uneven distribution of the structure of the weld area, uncoordinated mechanical response and poor rotatability in the spinning forming process of the existing tailor-welded blank. The method comprises the following steps: after the butt joint of two magnesium alloy plates to be welded, first friction stir welding is performed; after the first friction stir welding is completed, the stirring head is lifted, the stirring head is moved a certain distance to the forward side, then the second friction stir welding is performed in the opposite direction of the first friction stir welding by using the same welding process parameters, and heat treatment is performed after the part is processed into a circular blank according to the size; then the tailor-welded blank is fixed on an ellipsoidal core mold, preheating is performed, and shear spinning forming is performed. The reciprocating staggered friction stir welding makes the structure on both sides of the weld and the base material transition uniformly, reduces the uneven deformation of the weld and the base material in the spinning process, improves the spinning thinning rate, and greatly improves the rotatability of the tailor-welded blank.

The invention relates to a method for manufacturing a motor vehicle component (1) for a motor vehicle, wherein the motor vehicle component (1) comprises a first joining part (4) made of a first material and a second joining part (5) made of a second material different from the first material, which together at least partially surround a motor vehicle opening (2) and are joined together. It is provided that the joining is carried out by friction welding using a friction welding element (6). The invention further relates to a motor vehicle component (1) for a motor vehicle.

1. Name of the product in this design: CNC machine tool (friction stir welding - TS1890). 2. Application of this design: This design is used for friction stir welding. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Since the bottom surface is not commonly seen during use, the bottom view is omitted.

A backshell housing includes a pair of housing parts including a first housing part and a second housing part friction welded to one another. A cable passage of the first housing part is continuous with a cable passage of the second housing part. At least one of the housing parts has a welding protrusion received in a welding notch of the other of the housing parts. The housing parts are friction welded at an interface of the welding protrusion and the welding notch.

This application relates to a split-type vibratory slide table for linear friction welding equipment, comprising an upper slide table and a lower slide table; the upper slide table and the lower slide table are connected by a long blade clamp; the end face distance between the upper slide table and the lower slide table is greater than the height of the long blade; wherein, when the long blade clamp is installed, the long blade is located between the upper slide table and the lower slide table, and the length of the long blade is greater than the length of the long blade clamp. This application can reduce the overturning torque, improve the load force on the guide rail and guide rail slider, and make the slide table movement more reliable, thereby enabling linear friction welding of long blades.

A linear friction welding joint current auxiliary local shape correction method of blisk, steps are as follows: preparing shape correction equipment; measuring blisk to determine size out-of-tolerance blade; machining necking transition section at weld; sending blisk into vacuum environment device; sequentially installing single shape correction tooling and electrode at weld, electrode is connected to direct current pulse power supply; connecting cooling device; sequentially starting vacuum environment device, cooling device, direct current pulse power supply and single shape correction tooling; correcting and preserving; after shape correction stress is reduced to set value, direct current pulse power supply is turned off; cooling to normal temperature; recovering normal pressure environment, cooling device is turned off, electrode and single shape correction tooling are sequentially removed. The present application utilizes Joule heat effect and electroplastic effect generated by current through metal to realize local heating of welding joint, has directional correction ability to any specific out-of-tolerance blade, and improves shape correction efficiency; necking transition section is used to improve current density, shape correction temperature field is more concentrated, and high-precision shape correction is realized by spot cooling.

The application relates to a heavy-load friction stir welding pin withdrawing device, which is installed at the rear end of a heavy-load friction stir welding spindle (2), the front end of the heavy-load friction stir welding spindle (2) is provided with a heavy-load friction stir welding tool (3), the heavy-load friction stir welding tool (3) comprises a split structure of a pin (6) and a shoulder (5), the heavy-load friction stir welding pin withdrawing device comprises a rotary separation mechanism, a planetary screw servo driving mechanism and a pin withdrawing shaft (9), the planetary screw servo driving mechanism drives the pin withdrawing shaft (9) to continuously and stably withdraw the pin (6) into the shoulder (5) under the cooperation of the rotary separation mechanism. The heavy-load friction stir welding pin withdrawing device can eliminate the welding ring gap keyhole in the heavy-load friction stir welding forming process of a large-thickness high-strength aluminum alloy.

The application discloses a friction welding milling cutter preparation process, which comprises the following steps: raw material processing, welding, pretreatment, first treatment, second treatment, head preparation and film plating. The raw materials are divided into batches according to shank diameters, the raw materials with similar shank diameters in the same batch are selected as shank materials and head materials, the friction welding mode is adopted to coaxially weld the head materials and the shank materials, the welding firmness and stability are improved, and the shank material side is polished to the requirements of products through automatic step difference, semi-finished product detection and multiple centerless polishing. Then, the head is prepared, and finally, film plating is carried out to improve the product performance. The milling cutter has good preparation effect, high strength, avoids welding separation in a vacuum film plating environment and has good stability.

The application provides a double-sided synchronous combined friction stir welding device and method, which comprises a first stirring shaft and a second stirring shaft, the first stirring shaft is provided with a first stirring needle, the first stirring needle is provided with a butt joint boss, the butt joint boss is provided with a first ball positioning part; the second stirring shaft is arranged on one side of the first stirring needle; the second stirring shaft is switchable to a welding position relative to the first stirring shaft, synchronous movement and rotation of the second stirring shaft with the first stirring shaft are realized to achieve friction stir welding; the second stirring shaft is provided with a second stirring needle, the second stirring needle is provided with a butt joint convex ring and a second ball positioning part, the butt joint convex ring is arranged outside the second ball positioning part in a ring shape, the second ball positioning part and the first ball positioning part are in concave-convex cooperation; the second ball positioning part and the first ball positioning part abut when being located in the welding position, the butt joint boss is arranged in the butt joint convex ring, the butt joint boss and the second stirring needle are arranged in a spaced manner, the butt joint convex ring and the butt joint boss are arranged in a spaced manner, and the butt joint convex ring and the first stirring needle are arranged in a spaced manner. The application effectively improves the welding quality and prolongs the service life of the tool.

The application provides a linear friction welding device and control method for cuboid workpieces, comprising an electro-hydraulic excitation system, an electro-hydraulic upsetting system and a clamping force control center; the electro-hydraulic excitation system and the electro-hydraulic upsetting system are respectively provided with clamping devices; the clamping device comprises first and second wedges, a clamping block, a support base and a linear drive device; the bottom of the clamping block is matched with a moving pair at the bottom of the support base, and the clamping block is moved along the moving pair through the linear drive device; the first wedge is moved along a direction perpendicular to the moving direction of the clamping block during the movement of the clamping block along the moving pair; the two second wedges are moved towards each other along a direction perpendicular to the moving direction of the clamping block during the movement of the clamping block along the moving pair; the workpiece to be processed is placed between the first and second wedges, and the workpiece to be processed is clamped during the movement of the clamping block along the moving pair. The application can effectively avoid the welding defect problem caused by the workpiece clamping device in the linear friction welding process.

1. The name of the design product: friction welding machine. 2. The use of the design product: equipment for friction welding. 3. The design features of the design product: in shape. 4. The picture or photo that best shows the design features: perspective view 1.

The present application relates to the technical field of force amplification fixture, and discloses a force amplification fixture of inertia friction welding machine, which comprises a supporting mechanism, the supporting mechanism comprises a power mechanism rack, a clamping mechanism rack and a reinforcing rack, the power mechanism comprises a clamping power mechanism and a rotating power mechanism, the clamping power mechanism and the rotating power mechanism are fixedly installed on the power mechanism rack, and the clamping power mechanism is coaxially arranged with the clamping mechanism rack, the clamping mechanism is located in the clamping mechanism rack, one end of the clamping mechanism is matched with the clamping power mechanism and the rotating power mechanism respectively, and the other end of the clamping mechanism is provided with a jaw shoe, and the reinforcing mechanism is located in the reinforcing rack and is located on the side of the clamping mechanism, the self-adaptation, high efficiency and low maintenance of the fixture are realized, the comprehensive performance and production economy of the inertia friction welding equipment are significantly improved, and the force amplification fixture is suitable for high-precision welding scenes of key parts of high-end equipment such as an aero-engine.

The utility model discloses a double main drive electric drive controller heat dissipation structure relates to the technical field of automotive components. Including the box, the inside of box is provided with the mounting panel, the top and bottom of mounting panel all are provided with the liquid cooling tank of intercommunication, the top and bottom of liquid cooling tank all are provided with IGBT module, and the heat dissipation tooth of a few one end extension is provided to the inside of liquid cooling tank on IGBT module, and the top and bottom of liquid cooling tank all are provided with the sealed groove. The heat on IGBT module is taken away by the cooling liquid through the heat dissipation tooth heat, eliminates the contact thermal resistance of traditional form heat dissipation, improves the cooling effect, and cooling efficiency is high, and the traditional box waterway needs friction welding process, and this scheme removes this complex process, and the required protection level is realized by adopting silica gel sealing ring, and the box processing is simple, and the capacity is high, and the cost is low, and the overall layout is compact, and the integration is high, and the space is small, can satisfy the layout requirement of most electric cars, has wide application prospect.

The application discloses a kind of based on harmonica profile battery shell flow channel partition welding process, comprising the following steps: the harmonica profile to be welded is fixed on workbench, according to design machine adds the rib position of profile, and ensure that the rib position is without residue after machining;According to design, partition structure is placed in the position to be welded and carries out accurate positioning, ensure that the upper and lower sides of partition structure and flow channel are closely matched;Using the stirring friction welding head with a penetration depth of not less than 2mm to weld the partition structure, so that the process hole formed after welding is retained in the middle of the partition structure;After welding the partition structure, the profile is subjected to a repair welding process hole, and the two end plugs are welded to obtain an initial product of the shell;The initial product of the shell is subjected to airtightness test, and if the test is passed, the finished product of the shell is obtained, otherwise, the leaking position is repaired.The significant effect is that the first-time pass rate of airtightness test of the product is greatly improved, and the thermal deformation is not obvious.

This invention discloses a friction coefficient calculation model, its construction method, and its application in rotational friction welding simulation. The model calculates the real-time friction coefficient between two test pieces during rotational friction welding, where ε is the pressure at the contact surface of the two test pieces, ε is the relative linear velocity, and ε is the interface temperature. e is a natural constant, and a, b, c, d, and f are all constants. The friction coefficient calculation model uses machine learning to decouple the friction coefficient calculation, constructing a friction coefficient prediction model adaptable to the entire temperature range. Based on this friction coefficient calculation model, inertial friction welding simulation can provide technical support for inertial friction welding process optimization and industrial applications.

The application discloses a liquid-cooled box forming method combining friction stir welding and vacuum electron beam welding. The method is as follows: firstly, milling the upper water channel side plate and the lower water channel side plate respectively, cleaning and loading the square plug, loading the cover plate into the water channel plate, adopting friction stir welding, then carrying out nondestructive testing and air tightness testing; then, carrying out numerical control finishing on the upper water channel side plate and the lower water channel side plate, taking out the square plug, sealing the connecting mortise and the cover plate hole with paper adhesive tape; then, cleaning all parts, assembling the parts of the box together by using the positioning combination detachable tooling, adopting vacuum electron beam welding to weld the liquid-cooled box body, then adopting handheld laser welding to assist welding, and then carrying out nondestructive testing and air tightness testing; finally, carrying out numerical control finishing on the liquid-cooled box, and carrying out electroplating surface treatment, air tightness testing and paint protection treatment. The application has the advantages of simple process, low production cost, strong implementability, high structural strength and high reliability.

The utility model relates to a kind of heavy truck radiator water chamber by vibration friction welding in the heavy truck radiator technical field, including expansion kettle and water chamber, the expansion kettle is divided into two parts, one part is shaped as upper expansion kettle alone, another part lower expansion kettle is directly formed integrally with water chamber, two parts are welded together by vibration friction welding technology;The device realizes upper and lower part fusion by vibration friction welding, not only reduces production cost, improves production efficiency, but also improves the sealing and strength of expansion kettle, improves the safety and reliability of radiator water chamber as a whole;And the radiator water chamber air chamber and expansion kettle are connected together using injection molding process, that is, water chamber and expansion kettle integrated design;Advantages are that firstly space optimization and compact structure;Secondly, reduce parts, reduce material, reduce weight and realize lightweight design;Finally, integrated design can reduce leakage point, improve the sealing of system.

The application discloses a large-scale plate full-automatic friction stir welding production system and relates to the technical field of plate welding. The system comprises an oxide film removing and scribing unit and an FSW plate splicing unit. The oxide film removing and scribing unit comprises a first power roller way, a positioning block arranged at the tail end of the first power roller way, and a polishing assembly arranged beside the tail end of the first power roller way and capable of reciprocating along the Y direction. A driving assembly is arranged on the first power roller way, and the driving assembly is used for driving the positioning block to switch positions, so that the positioning block has a high positioning state of extending above the roller surface of the first power roller way and a low avoidance state of retracting to the obliquely lower side of the roller surface of the first power roller way. The positioning block is arranged in multiple groups along the Y direction, and the movement path of the polishing assembly coincides with the arrangement line of the multiple groups of positioning blocks. The workpiece XY direction positioning component is optimized and designed, so that the component can adaptively avoid the polishing component while having the positioning stop function, and the time sequence cooperative work of the two components is realized.

The utility model relates to welding auxiliary technical field, proposes a kind of high-frequency heating auxiliary friction stir welding device, the present design includes welding mechanism, high-frequency heater being arranged in the side surface of welding mechanism, and stirring needle is rotatably connected to the bottom of welding mechanism, and lifting adjustment assembly is arranged in the side surface of welding mechanism, and lifting adjustment assembly includes the sliding seat that can drive high-frequency heater and move vertically in the side surface of welding mechanism, horizontal adjustment assembly is arranged in the inside of sliding seat, and horizontal adjustment assembly includes two groups of the sliding sleeve that can drive high-frequency heater and slide horizontally and slide lock;The present design is through high-frequency preheating and two big innovations of multi-degree-of-freedom adjustment, solves the pain point that stirring head is easy to wear and tear, not flexible in traditional friction stir welding adjustment, significantly improves welding efficiency, quality and equipment life, and all mechanical design is applicable to industrial high-strength application scene.

This utility model relates to the field of friction stir welding technology, and more particularly to a protective device for friction stir welding. The device comprises a plurality of protective components arranged in an array on the workpiece to be welded. Each protective component includes a connecting mechanism and a liftable baffle mechanism. The connecting mechanism is detachably mounted on the workpiece to be welded. The liftable baffle mechanism is fixedly mounted on the connecting mechanism and is used to block debris generated during the friction stir welding process. This utility model provides a protective device for friction stir welding, solving the technical problem of poor versatility of existing protective devices.

The application provides a structure and method for integrating a friction stir welding packaged atypical heat pipe with a plate body, which comprises: a device mounting side plate body and a bearing structure plate body; the device mounting side plate body and the bearing structure plate body are arranged in parallel, and after the device mounting side plate body and the bearing structure plate body are butted, an atypical heat pipe structure is formed between the device mounting side plate body and the bearing structure plate body; the atypical heat pipe structure comprises a macroscopic flow channel and a microscopic reflux channel; the macroscopic flow channel is used for connecting the evaporation section and the condensation section of the heat pipe and realizing the evaporation and condensation flow of the working medium; the microscopic reflux channel is used for realizing the capillary reflux of the condensed liquid; the device mounting side plate body and the bearing structure plate body are packaged by friction stir welding along the outer edge to realize the overall sealing of the atypical heat pipe structure. The application eliminates the multiple interface thermal resistances of the traditional skin layer and the glue layer, improves the heat transfer efficiency, the heat management uniform heating capacity, the mechanical properties of the structure and the sealing reliability.