21 results about "Forge welding" patented technology

A reinforcement beam for an automotive component is continuously formed with a metal sheet that is roll formed to have at least one tubular portion that extends along a length of the reinforcement beam. A solid state forge weld is formed between an edge of the metal sheet and an intermediate portion of the metal sheet to close a seam that extends along the tubular portion of the reinforcement beam. Prior to forming the solid state forge weld, select portions of the metal sheet are heated to a desirable welding temperature with a high frequency current delivered by electrical contacts to opposing sides of the weld seam. The desired welding temperature may burn off a galvanized coating on the metal sheet at the select portions prior to forming the solid state forge weld that is generally void of zinc inclusions.

The invention discloses a manufacturing method of an impact type rotating wheel of a tailor-welded hub and square-head special-shaped water bucket composite welding structure. Compared with main manufacturing technologies such as integral forging numerical control machining manufacturing, traditional bucket and hub forge welding manufacturing and electric arc additive manufacturing of the impulse turbine runner in the current industry, the material utilization rate and the welding efficiency are improved, the difficulty of forging and automatic welding is reduced, the comprehensive performance of a high-stress area structure of the runner is improved, and the manufacturing cost is reduced. The method has outstanding advantages in the aspects of manufacturing cost and efficiency.

The application discloses a kind of automatic welding device of forging, belong to welding equipment field, a kind of automatic welding device of forging, including workbench, further include: material supporting mechanism, the material supporting mechanism is provided with two, two the material supporting mechanism is symmetrically distributed in the top surface both sides of workbench, the material supporting mechanism is used to support the lifting support of forging;Welding torch, the welding torch is set to one side above the material supporting mechanism;Welder, the welding machine is set to one side of the welding torch, the welding machine is used to realize the welding treatment of forging with welding torch;Transfer mechanism, the transfer mechanism is set to one side of the top surface of workbench, one side of the transfer mechanism is connected with the welding torch, and the welding machine is located one side of the top surface of the transfer mechanism.The whole welding process of the application does not need too much participation of personnel, can guarantee to reduce the labor intensity of worker, can guarantee the efficiency of forging welding.

The invention relates to a method for improving the surface quality of nickel-based alloy strip foil, and belongs to the technical field of high-temperature alloy processing and preparation. Remelting electroslag ingots with set chemical components are obtained; the remelting electroslag ingot is subjected to cogging forging at the heating temperature of 1150-1250 DEG C, the deformation is controlled to range from 30% to 70%, and a flat blank is obtained; the flat blank is subjected to hot rolling at the heating temperature of 1150-1250 DEG C, the deformation is controlled to be 50%-90%, and a strip blank is obtained; and the strip blank is sequentially subjected to rough cold rolling, first surface coping, finish cold rolling, second surface coping and withdrawal and straightening, and the nickel-based alloy strip foil is obtained. The nickel-based alloy foil with the high-quality surface is obtained by reducing defect sources layer by layer through high-temperature large-deformation forge welding shrinkage, hot rolling recrystallization refining, cold rolling layering hardening depth control, SiC micro cutting defect removal, finish rolling mirror surface copying and annealing refining, micro crack removal through ultra-finishing and residual crack closing through tension withdrawal and straightening.

A method of processing high-strength steel includes providing a first piece of high-strength steel. Friction stir processing the first piece of high strength steel is performed by pre-heating an area in advance of a friction stir welding tool and moving the friction stir welding tool between 500 mm and 300 mm per minute to attain a mixed zone having a mixed zone temperature at the mixed zone between a eutectoid temperature and a forge welding temperature from a combination of the friction from the friction welding tool and the step of pre-heating.

The invention discloses a drill rod hot forging welding production process, a drill rod production device and a drill rod, and relates to the technical field of drill rod production, the drill rod hot forging welding production process comprises a heating step, a forging step and a welding step, in the heating step, the end of a main rod pipe is heated; a forging step: forging the end part of the main rod pipe to construct a hot forging pipe section; and a welding step: welding and fixing the joint on the end face of the hot forging pipe section. According to the technical scheme, the welding strength between the main rod pipe and the connector can be improved, so that the risk that the drill rod is fractured in a welding seam area is reduced.

The invention relates to a lightweight main cable saddle and a mounting method thereof, and particularly discloses a lightweight main cable saddle which adopts a three-section design of a forge welding structure, and is connected by adopting high-strength bolts after being hoisted in sections on a construction site; and the junction surface of the front section and the middle section and the junction surface of the middle section and the rear section form an inverted trapezoidal wedge opening, so that each section is uniformly stressed when the main cable saddle bears the blocking acting force of a main cable. And in the hoisting process of the main cable saddle, the rear section, the middle section and the front section are sequentially lifted to the main tower, but after the middle section is lowered, the middle section is firstly supported at a higher height, after the front section is lifted and lowered, a proper wedge opening is formed in the combination surface of the rear section and the front section, the middle section is lowered in place, so that the rear section, the middle section and the front section are tightly attached, and then the rear section, the middle section and the front section are connected through high-strength bolts.

The invention provides a hot forging and forging welding machining method for an axle housing. The axle housing hot forging and forging welding machining method comprises the steps that according to the size requirement of an axle housing blank, finished steel is blanked, a metal blank is obtained, and the metal blank is subjected to heat treatment and heated to the set heating temperature; the heated metal blank is subjected to preliminary forging through a hot forging machine to reach a stamping die matched with punching machine equipment; stamping and forming through a stamping die to form an axle housing blank; the axle housing blank is subjected to thermal aging treatment and rough machining treatment again, and an axle housing rough machining part is formed; and the axle housing rough machining part subjected to rough machining treatment is subjected to heat treatment, pressing treatment and finish machining treatment again, and axle housing product machining is completed. According to the axle housing hot forging and forging welding machining method, the complexity of the machining process is reduced, the machining time is saved, the machining efficiency is improved, raw materials are saved, the overall weight of the axle housing is reduced, and meanwhile the production cost is reduced.

To provide a pressure welding method and pressure welding device capable of improving the joining strength of two overlapping workpieces to be joined. [Solution] One aspect of the present disclosure is a pressing method in which a first workpiece (11) and a second workpiece (12) are overlapped and pressed from the first workpiece (11) side with a punch (24) to press the first workpiece (11) and the second workpiece (12) together, wherein the punch (24) has a convex portion (30) and a step portion (40) formed on the base portion (31) of the convex portion (30) and protruding outward beyond the convex portion (30) in a direction intersecting the movement direction of the punch (24), and when the first workpiece (11) and the second workpiece (12) are pressed together, the first workpiece (11) is pressed by the convex portion (30) and at the same time by the step portion (40), so that the portion of the first workpiece (11) that is pressed by the convex portion (30) and attempts to flow in a direction different from the second workpiece (12) is pressed by the step portion (40) in the direction toward the second workpiece (12) and caused to flow.

The application relates to the application of forging and welding technology in the manufacturing and shaping of a cable saddle of a suspension bridge, and particularly discloses a forging and welding forming process of a cable saddle of a suspension bridge, which mainly comprises the following process flows: (1) adopting a forging process to form a bottom block and a bottom plate of a cable saddle groove, (2) plate material blanking, (3) welding the bottom plate and the side wall plate of the cable saddle groove to obtain the cable saddle groove, and (4) planning the welding sequence of the frame plate to obtain optimal welding space and welding quality. In the traditional process, the cable saddle groove is usually cast to form, so that the quality and strength are low, the bottom plate of the cable saddle groove is forged to form in the scheme, so that the light weight and the strength are improved.

The invention discloses a composite welded pipe inner layer stainless steel rolling welding device, and belongs to the technical field of pipeline welding, the composite welded pipe inner layer stainless steel rolling welding device comprises a composite steel pipe, a rolling welding device is arranged below inner burrs to be rolled and welded on the inner side wall of the composite steel pipe, the rolling welding device comprises a contraction sliding rail, and a rolling blade mechanism is slidably arranged in the contraction sliding rail; a telescopic mechanism is arranged on the right side of the telescopic sliding rail, the telescopic end of the telescopic mechanism is connected with a rolling blade mechanism, and a burr removing mechanism is arranged at the end, away from the rolling blade mechanism, of the telescopic mechanism. According to the rolling welding device for the inner-layer stainless steel of the composite welded pipe, forging and welding of the inner-layer stainless steel of the inner-layer stainless steel bimetallic composite welded pipe can be achieved, the whole welding process of the inner layer and the outer layer is completed on line, and the offline welding process is replaced.

The present invention relates to the technical field of butt weld detection of forged welded container heads, and specifically to a detection device suitable for butt welds of forged welded container heads, comprising a crossbar, two first scanning assemblies being arranged on one side wall of the crossbar with the weld as the center, a second scanning assembly being arranged on the same side wall of the crossbar with the weld as the center, a third scanning assembly being arranged on the other side wall of the crossbar with the weld as the center, and a fourth scanning assembly being arranged on the other side wall of the crossbar with the weld as the center. The present invention completes TOFD detection of welds of unequal thickness on butt welds of forged welded container heads without requiring the forged welded container to be placed in a flaw detection room, thereby reducing detection costs, thereby improving the universality of the device, and in a single detection process, by changing the probe spacing, the number of scanning assemblies on the same crossbar can be increased, thereby increasing the number of simultaneous detections in a single time as required, thereby improving the efficiency of a single detection compared to radiographic detection.

A method of processing high-strength steel includes providing a first piece of high-strength steel. Friction stir processing the first piece of high strength steel is performed by pre-heating an area in advance of a friction stir welding tool and moving the friction stir welding tool between 500 mm and 300 mm per minute to attain a mixed zone having a mixed zone temperature at the mixed zone between a eutectoid temperature and a forge welding temperature from a combination of the friction from the friction welding tool and the step of pre-heating.

The invention relates to application of forging and welding technologies in manufacturing and forming of a cable saddle of a suspension bridge, and particularly discloses a forging and welding forming process of a splay cable saddle of the suspension bridge, which mainly comprises the following steps: (1) forming a bottom block and a bottom plate of a cable saddle groove by adopting a forging process, (2) blanking a plate, and (3) welding the bottom plate of the cable saddle groove and a side wall plate to obtain the cable saddle groove. And (4) the welding sequence of the frame plates is planned to obtain the optimal welding space and welding quality. In the traditional process, the cable saddle groove is usually formed by casting, so that the cable saddle groove is moderate in quality and low in strength, and the cable saddle groove bottom plate in the scheme is formed by forging so as to achieve the purposes of light weight and improved strength.

The invention relates to a thick-wall forge-welded structure hydrogenation reactor creep-resistant main body forge piece and a manufacturing method, belongs to the technical field of metal materials, and solves the problems of insufficient high-temperature durability and hardenability of hydrogenation reactor main body forge pieces in the prior art. The invention relates to a thick-wall forge welding structure hydrogenation reactor creep-resistant main body forge piece. The forge piece material comprises the following chemical components in percentage by mass: 0.14-0.16% of C, less than or equal to 0.1% of Si, 0.3-0.6% of Mn, less than or equal to 0.005% of P, less than or equal to 0.002% of S, 1.90-2.20% of Cr, 0.9-1.1% of Mo, less than or equal to 0.2% of Ni, less than or equal to 0.2% of Cu, less than or equal to 0.05% of Nb, 0.25-0.35% of V, less than or equal to 0.03% of Ti, less than or equal to 0.04% of Al, 0.0010-0.0025% of B, less than or equal to 0.004% of Sb, less than or equal to 0.01% of Sn, less than or equal to 0.01% of As And the high-temperature creep durability and hardenability of the thick-wall forge piece are improved.

A defect perimeter sealing system for a storage tank that provides a seal, including a perimeter gasket, a cover plate, a plurality of studs that penetrates through the perimeter gasket and the cover plate and applies compression to the perimeter gasket, and wherein the defect perimeter sealing system is placed over a defect in the storage tank, wherein the plurality of studs are friction forge welded to the storage tank.

A method for forming a forged and welded split gear rim involves forging a full circular ring using a large ring rolling mill and cutting it into two semi-circular rings. Radial extrusion using hydraulic jacks and a square box prevents radius expansion after the full circle is cut, reducing the radius of the semi-circular rings to their pre-welding radius. A tie rod fixture then fixes the reduced-diameter, straightened semi-circular rings, allowing for heat treatment while maintaining the radius dimensions. Finally, removing the tie rod fixture and machining the components allows the two semi-circular rings to be welded into a full circular rim. This method eliminates the need for large plate rolling machines to bend steel plates into arc shapes and for extending the ends of the steel plate as clamps. Therefore, it reduces costs in terms of both equipment and materials used. This simplifies the production process, enabling manufacturers without large plate rolling machines or access to large quantities of high-strength steel plates to produce forged and welded split gear rims.

The invention relates to the technical field of application of forging and welding technologies in manufacturing and forming of suspension bridge cable saddles, and particularly discloses a forming process of a forge welding type cable saddle groove. The main technological process comprises the steps that firstly, an alloy material is forged into a rectangular blank through a forging technology, secondly, the forged rectangular blank is machined into a radian structure of a segmented groove bottom plate, thirdly, the segmented groove bottom plate is welded into a whole, and thirdly, the groove bottom plate and a side wall plate are welded to obtain the cable saddle groove. In the prior art, a cast cable saddle groove is heavier and heavier and is inconvenient to process, transport and hoist; and the strength of the cable saddle groove is not matched with that of a main cable steel wire.

The utility model belongs to the technical field of forge piece welding limiting equipment, in particular to a limiting structure for forge piece welding, which comprises a mounting plate and an upper fixing plate, the upper fixing plate is arranged right above the mounting plate, a threaded cylinder is fixedly mounted at the upper end of the upper fixing plate, and the upper fixing plate is in threaded connection with a threaded rod through the threaded cylinder. The lower end of the threaded rod is rotationally connected with the upper end surface of the mounting plate through a bearing; a storage groove is formed in the surface of the lower end of the upper fixing plate, a pressing plate is arranged in the storage groove, insertion holes are formed in the surfaces of the two sides of the pressing plate, and insertion columns are fixedly connected to the inner side wall of the storage groove. Therefore, the device can be used in the later period. And during the period, an upper magnetic attraction strip is matched, so that the pressing plate cannot be automatically turned downwards after being turned out, and the use stability is further improved.

The utility model relates to the technical field of electro-hydraulic hammer equipment, and discloses an electro-hydraulic hammer transformed from an air hammer, which comprises a machine body, a support frame is fixedly assembled at the bottom of the machine body, an air hammer operation part is arranged on the side surface of the machine body, and an electro-hydraulic hammer power head is fixedly assembled at the top of the machine body. And a main electro-hydraulic cylinder is fixedly assembled at the top of the electro-hydraulic hammer power head. An air hammer operation part and an electro-hydraulic hammer power head are used in cooperation, the electro-hydraulic hammer power head is installed on an original air hammer anvil block part and an original air hammer machine body part, equipment is operated through the air hammer operation part, the electro-hydraulic hammer power head drives an air hammer head hitting part to conduct forging, and the equipment runs normally; forging of free forging processes such as original extending, upsetting, punching, shearing, forge welding, twisting and bending is achieved, working noise of air hammer forging equipment is eliminated, and smoke and dust generated when the equipment works are also eliminated.

The invention relates to application of forging and welding technologies in manufacturing and forming of a cable saddle of a suspension bridge, and particularly discloses a forging and welding forming process of a main cable saddle of the suspension bridge, which mainly comprises the following steps of: (1) forming a base plate and a bottom plate of a cable saddle groove by adopting a forging process, and (2) blanking to form each component of a saddle body structure and a side wall plate of the cable saddle groove; (3) the cable saddle groove bottom plate and the side wall plate are welded to obtain the cable saddle groove; and (4) the plate welding sequence of the saddle body structure is planned to obtain the optimal welding space and welding quality. In the traditional process, the cable saddle groove is generally formed by casting, so that the quality strength of the cable saddle groove is low, and the cable saddle groove bottom plate in the scheme is formed by forging, so that the purposes of light weight and strength improvement are achieved.