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WO/2023/228674A1 |
Provided is a method for estimating the nugget diameter of a welded material bonded by resistance spot welding, the method comprising: a reference welding step for measuring the amount of expansion of a test material and bonding the test...
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WO/2023/228434A1 |
[Problem] To provide a tip dresser that is capable of, when performing resistance welding, applying appropriate electric current and voltage to a welding spot. [Solution] The present invention comprises: a rod-like member 10 which has ...
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WO/2023/228423A1 |
This welding management device manages the welding conditions of spot welding. The welding management device comprises a control device and a calculation processing device. The calculation processing device comprises a storage unit for s...
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WO/2023/222584A1 |
The invention relates to a band flash butt welding machine (1) with which end faces of band ends (3, 11) of at least one band, in particular a saw band, can be welded. The band flash butt welding machine (1) has clamping elements (5, 12)...
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WO/2023/223604A1 |
Provided are a method, etc., for determining a gap between steel plates in resistance spot welding, whereby the presence of a gap between steel plates can be determined by directly measuring the shapes of primary surfaces of superimposed...
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WO/2023/223485A1 |
The purpose of the present invention is to provide a welding device and a welding method with which it is possible to properly comprehend welding defects including abnormal shapes, which are linked to fold defects, and the generation of ...
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WO/2023/222442A1 |
The invention relates to a method for connecting a hot formed steel article to a steel object. According to the invention, the method comprising the following steps: - Providing a zinc or zinc alloy coated medium manganese steel blank; -...
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WO/2023/210406A1 |
Provided is a current control method for resistance spot welding in which a plurality of stacked metal plates are clamped with a pair of electrodes, and electricity is passed therethrough while pressure is applied, to weld the metal plat...
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WO/2023/211188A1 |
The present invention relates to a system and a method for laser scanning-based resistance spot welding quality assessment and, more particularly, to a system for laser scanning-based resistance spot welding quality assessment, the syste...
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WO/2023/203753A1 |
The objective of the present invention is to alleviate the burden of work performed by an operator to confirm a number of weld spots on a workpiece. A weld spot number management device 10 according to an embodiment of the present disc...
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WO/2023/196718A1 |
A welding electrode for use in resistance spot welding an assembly of metal workpieces with curved surfaces and closed or open sections is disclosed. The welding electrode includes a body, a weld face at one end of the body, and contoure...
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WO/2023/189536A1 |
Provided is a manufacturing method for a sliding member that includes a sliding component (10) and a non-sliding component (20), wherein the method comprises: a step for forming a film on the sliding component (10) by carrying out salt-b...
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WO/2023/192338A1 |
Insulated electrode fixture has an electrically conductive body with a receiving channel configured to receive a workpiece and an insert that is electrically isolated from the electrically conductive body is located on the first side and...
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WO/2023/182266A1 |
A projection weld joint manufacturing method according to the present disclosure comprises: pressing a projection portion of a steel member, which includes the projection portion on a flat surface thereof, against a surface of a hot-stam...
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WO/2023/181680A1 |
The purpose of the present invention is to provide a resistance spot-welded joint and a method for producing the same. In a resistance spot-welded joint according to the present invention, at least one of two or more steel plates has a t...
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WO/2023/181809A1 |
Provided is a method for manufacturing an electrolytic cell unit that can improve welding quality. This method for manufacturing an electrolytic cell unit comprises: a step for arranging first and second ribs 14, 30, first and second par...
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WO/2023/181564A1 |
A method for manufacturing a projection welded joint according to one aspect of the present invention includes a first energization step for causing electricity to be conducted to a steel plate, which is a non-plated steel plate or a zin...
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WO/2023/176890A1 |
A spot-welded joint according to one aspect of the present invention comprises: a plurality of steel plate portions including a high-strength steel plate portion having a Vickers hardness of 530 HV or more; a nugget where the high-streng...
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WO/2023/167264A1 |
In this dissimilar-material joined body, a steel material and a stud-equipped aluminum member, in which a steel stud member is attached to an aluminum material, are joined together by fusion joining. The stud member comprises a head part...
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WO/2023/157424A1 |
This lap welded joint comprises a plurality of steel plates that are partially or entirely overlapped, a spot welded portion joining the overlapped parts of two or more of the steel plates, and an arc welded portion disposed so as to tem...
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WO/2023/155954A1 |
The invention relates to a method for producing a welding cap from copper or a copper alloy, wherein the welding cap is at least partially produced additively by a 3D printing method.
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WO/2023/151263A1 |
A mould-repairing cutter for trimming a double-helix protruding welding electrode. The mould-repairing cutter comprises a cutter assembly (1), a reciprocating stepping electric motor (3), a propelling screw (4), a screw supporting seat (...
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WO/2023/153247A1 |
Provided are a resistance spot-welded joint and a resistance spot welding method. The present invention is a resistance spot-welded joint in which two or more steel sheets, including at least one high-strength steel sheet, are welded tog...
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WO/2023/152098A1 |
The invention relates to a method for non-destructively testing a connection point (10) in a component assembly, comprising a base layer (14), at least one cover layer (16), and a connection element (12a, 12b) with a head (18a, 18b) and ...
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WO/2023/153389A1 |
This spot welding device uses a pair of electrodes to sandwich a plurality of stacked steel sheets and apply electricity while applying a pressure, so as to be able to perform spot welding of the plurality of steel sheets, the spot weldi...
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WO/2023/137967A1 |
An open-close-type welding apparatus, comprising a fixed bottom plate (7), the fixed bottom plate (7) being provided with a left welding nozzle (1) and a right welding nozzle (2), and further comprising a power shaft (9), a bidirectional...
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WO/2023/140016A1 |
Provided are a resistance welding element and a resistance welding method whereby an element is easier to maintain in a stable erect orientation on a material to be welded during welding even when increasing the outside diameter of a hea...
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WO/2023/139704A1 |
The purpose herein is to be able to apply the present disclosure to existing spot welding guns without the use of a dedicated external sensor, and to assist a user in determining the presence or absence of welding defects. This welding q...
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WO/2023/139923A1 |
Provided are a projection-welded joint and a projection welding method. The present invention is a welded joint formed by subjecting a high-strength plated steel sheet and a nut to projection welding, wherein the amount of solid solution...
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WO/2023/139670A1 |
[Problem] To make it possible, when pressing the tip end of an electrode tip to shape the tip end into a normal shape, to perform shaping while avoiding the formation of a scarf piece, and to increase the efficiency of shaping work. Also...
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WO/2023/132244A1 |
Provided is a welded joint comprising stacked multiple steel plates, a spot-welded section having a nugget for joining the multiple steel plates together as well as a press-contact portion and a heat-affected zone which are formed around...
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WO/2023/132241A1 |
Provided is a welded joint characterized by comprising a plurality of stacked steel sheets, nuggets joining the plurality of steel sheets, and a spot welded section having pressure welded sections and heat affected sections formed around...
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WO/2023/130792A1 |
A method of joining metal substrates includes applying a compressive force to at least two overlapping metal substrates, applying an electric current at a first level, and ramping the electric current from the first level to a second lev...
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WO/2023/130732A1 |
A welding material piece (100), used for dissimilar metal welding of a first metal plate (200) having a melting point not exceeding 800°C and a second metal plate (300) having a melting point higher than 800°C. A prismatic structure (1...
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WO/2023/126746A1 |
The process comprises the following phases: providing one first bar (2) and one second bar (3) made of one metallic material and extending along relevant longitudinal directions, each provided with a first ending surface (4) and with a s...
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WO/2023/127405A1 |
Provided is a method for evaluating susceptibility to liquid metal embrittlement cracking in a resistance spot welded portion of a steel plate, with which a highly-accurate quantitative evaluation is possible. A pair of plates, in which ...
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WO/2023/121242A1 |
An aspect of the present invention may provide a method for manufacturing a welded steel pipe which has superior wear resistance and thus is suitable to deliver a slurry.
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WO/2023/121277A1 |
An aspect of the present invention may provide a welded steel pipe which is suitable to deliver a slurry, and a method for manufacturing same.
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WO/2023/121243A1 |
According to aspects of the present invention, provided are a welded steel tube and a manufacturing method for same which can provide excellent wear resistance and also minimize hot cracking of the welded portion.
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WO/2023/117663A1 |
The invention relates to a spot-welding electrode cap which extends along a longitudinal axis and has an end side with a central cap contact surface and with a transition section connecting directly radially and tangentially to the cap c...
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WO/2023/121222A1 |
An aspect of the present invention provides: an austenitic high-manganese steel having excellent extreme low temperature toughness in a heat-affected zone; and a method for manufacturing same.
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WO/2023/118516A1 |
A low carbon steel welded tube for low internal pressure applications, wherein the pressure in the tube is, in use, less than 10 kPa, wherein the low carbon steel constituting the welded tube is a hot-rolled steel strip having a thicknes...
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WO/2023/113054A1 |
According to one embodiment of the present invention, provided is a ball stud which can be mounted on and used for a stabilizer link and the like. The ball stud according to one embodiment of the present invention comprises: a ball membe...
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WO/2023/107907A1 |
Methods for resistance spot welding, systems and apparatus for resistance spot welding, and parts formed by processes including resistance spot welding are provided. The methods comprise contacting an assembly comprising at least two met...
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WO/2023/105837A1 |
A supply rod 7 is configured from a hollow main rod 20 and a guide rod 21 inserted into the main rod 20. An advance/retract output-type electric motor 33, which provides output in the same direction as the supply rod 7, and with which an...
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WO/2023/099394A1 |
The invention relates to an electrode arrangement (S) for a welding tong arrangement, comprising - a first electrode (1) which has an electrode shaft (41), extending along an electrode axis (E), and an electrode tip (42); and - a power s...
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WO/2023/080135A1 |
A welded rail according to an embodiment of the present invention, which has excellent fatigue damage resistance and breakage resistance at a weld joint part, comprises multiple rail parts and a weld joint part where the rail parts are j...
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WO/2023/080076A1 |
The objective of the present invention is to provide a resistance spot welded member and a resistance spot welding method for the same. In a resistance spot welded member according to the present invention, at least one of a plurality of...
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WO/2023/081284A1 |
A light module projects multiple light beams onto an installation surface to form multiple light indicia spaced apart in a pattern on the installation surface, with the light indicia identifying installation locations on the installation...
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WO/2023/075580A1 |
The present invention relates to filter winding apparatuses. The filter winding apparatus comprises a frame (1); a winding roller (2) and a pressure generating unit (3). The pressure generating unit (3) comprises a first lever (4) and a ...
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