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JPH09253843A |
To simplify the welding work, and improve the durability of a weld zone. A weld bead structure is provided with a fillet bead part 3 on each side in which an end face 2a of a tilting plate 2 is abutted on one surface 1a of a base plate 1...
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JP2650601B2 |
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JPH09225503A |
To prevent equipment stop caused by break in a connected part by joining and rolling metallic strips taking the crosssectional areas in the rear end part of a preceding metallic strip and in the tip part of the succeeding metallic strip ...
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JPH09225664A |
To enable laser beam welding without causing drooping weld bead causing the lowering of joining strength, when the laser-beam-welding a lap joint constituted of aluminum planar members is welded, with penetration reaching from the surfac...
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JP2544741Y2 |
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JPH09206935A |
To provide a horizontal position welding method by which welding quantity is reduced and welding efficiency is improved. In case of the horizontal position welding of an upper member to a lower member, the upper member 51 whose abutting ...
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JPH09206951A |
To prevent working environment from deteriorating and to suppress sticking of oxide by forming a notched part in a rim stock, welding the notched part using a filler rod and thereby preventing flash from generating. A notched part 2 is f...
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JPH09206969A |
To enhance productivity by forming a weld zone in which plural superposed parts formed on the end face of a weld joint are connected and alternately crossed and thereby laser-welding the superposed part in one welding operation. While a ...
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JPH09201675A |
To enable a perfectly penetration welding of a thick steel plate having a specified thickness and obtain a weld metal having good bead shape and excellent appearance by regulating welding condition, particularly the ranges of inclining a...
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JP2634868B2 |
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JP2634678B2 |
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JP2629915B2 |
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JPH09182979A |
To join two tubes firmly by thinning the thickness of tubes to be joined and preventing burrs from generating at the weld zone. A tapered part 11 is formed at the end of a copper tube 10. A part of this tapered part 11 is inserted into t...
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JP2540985Y2 |
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JPH09164496A |
To reduce the generation of stress at a welding part and to improve the fatigue strength without executing finish-treating of a groove from the back side by composing the groove of a bent part so as to be formed with bending from the fro...
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JPH09141486A |
To realize the firm welding with relatively small beads by providing at least a metallic pipe frame on one side which is opposite to other metallic frame. An axial part of a pipe frame 12 opposite to other metallic frame 10 is recessed i...
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JPH09141427A |
To form a joint having excellent tensile strength and fatigue strength without requiring any expensive wire with excellent strength in performing the lap fillet welding of a steel sheet for chassis parts of an automobile. A stepped part ...
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JP2611398B2 |
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JP2612427B2 |
PURPOSE: To improve welding strength by forming a through hole with a small diameter part, a large diameter part and a taper face and welding the tip end part of a pipe stock engaged and inserted to the taper face. CONSTITUTION: The pipe...
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JPH09122923A |
To realize an automatic production system capable of dealing with changes in an inclined angle such as stairs by using projection welding, in the production method of a beam structure like a metallic handrail. The manufacture is such tha...
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JPH09109601A |
To hold sufficient strength and to reduce cost by drawing a flat plate- like steel plate provided with a center projecting part and a tread part, cutting the drawn steel plate into the length of the outer periphery of a rim, forming it i...
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JPH09108832A |
To improve the strength of a weld zone by flitting end faces of a pair of cylindrical members to each other, and forming a second weld zone extending to an outer circumferential surface of the cylindrical members across a fully fillet we...
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JP2600908B2 |
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JPH0999388A |
To improve the dimensional accuracy of a bracket by welding and joining a lower flange unit and an upper flange unit formed by laser cutting the web part of a wide flange shape in compliance with the inclined shape of the upper flange un...
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JPH0994659A |
To prevent crack at high temperature and to improve the welding efficiency. The shape of a groove 3 is formed in a V type or Y type, the root gap is made in zero in the standard state, a backing metal 4 is abutted on the back face of the...
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JPH0985438A |
To join double tubes each other without having larger diameter part. A butting part of inner tubes 28 is welded and a cylindrical added leg member 34 having the same diameter as the outer tube 29 is mounted for a discontinuous part 23 of...
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JPH0985467A |
To inexpensively and efficiently obtain a joined part having good sealing tightness and mechanical strength by forming eutectic phase while expanding with externally fitting an aluminum tube to a heated copper tube. A high frequency heat...
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JPH0985447A |
To provide a submerged arc welding method of a box column angle joint not requiring edge preparation and capable of improving welding efficiency in producing a box column. In a submerged arc welding to weld a box column angle joint with ...
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JPH0985466A |
To surely center and join double pipes in a short time. In a case of joining mutual double pipes 31, 32, because the communicating state of the clearance 30 at the joining part 34 has to be kept surely, so the high precision is required ...
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JP2593758B2 |
PURPOSE: To prevent embrittlement of a weld zone and deterioration of corrosion resistance by inserting the titanium clad steel plates into a gap part formed by notching after welding as spacer materials and plasma-welding the different ...
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JPH0966387A |
To obtain a field welding method of girder steel frames and column steel frames capable of assuring the weld strength of the flanks of the column steel frames by making it possible to weld zones without discontinuing the weld zones in th...
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JP2527977Y2 |
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JPH0957440A |
To improve the reliability of a welded part by fitting the resin such as silicone rubber to an end part of a non-formed pipe to be inserted into an expanded sheath to prevent generation of metallic powder during the assembly. In a weld j...
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JPH0952183A |
To realize a method to execute butt welding of base metal having a thickness exceeding the piercing capability of electron beam welding machine. In an electron beam welding method to executing butt welding of a base metal 1 having a thic...
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JPH0947887A |
To prevent generation of welding burrs by arranging a V-opening produced at the cut face through shearing so that the opening may be on the inside of a tubular body and then laser-welding the contact face abutted from the side of the out...
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JPH0929489A |
To realize the correct and rapid alignment of each end part of a tube to be welded, to unify the inner weld bead shape, and to reduce generation of weld defect. When a part of a clamping device 23 is inserted in a tube end part of one tu...
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JPH0919767A |
To provide a method for joining fixed tubes by means of easily workable edge preparation in place of a single U groove that is difficult to machine and likely to cause weld defects. The method is to join a circumferential joint between u...
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JPH0919778A |
To obtain through laser welding a sound weld zone with blowhole defects suppressed. In the laser welding of an aluminum alloy in which molten metal is unexposed in the rear surface in a weld zone, a weld bead is formed which has a penetr...
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JP2571976B2 |
The invention relates to a lap or web weld for galvanized plates (1, 1'), with a laser weld (3) orientated transversely to the overlapped plates (1, 1') and passing through the plate layers. The plate layers are held at a distance apart ...
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JPH0910955A |
PURPOSE: To surely realize prescribed projection welding even when curvatures between both members do not always coincide at the time of the projection welding of a member with a curved recessed surface and a member with a curved project...
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JP2570380B2 |
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JP2568818B2 |
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JPH08332567A |
PURPOSE: To obtain one side welding method without using a backing in which burn through of melted bead is not generated, welding of high welding current is made possible and welding efficiency is improved even in the case of a welding j...
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JP2563684B2 |
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JPH08309580A |
PURPOSE: To reduce the deformation of a plate part by positioning a pipe so that the amount of the deformation state of the plate part after welding becomes 'prescribed value and welding and inner end face of a cylinder part and an inner...
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JPH08309524A |
PURPOSE: To provide a welding technique capable of executing welding with an optimum welding method and procedures in the case multilayer build-up welding in a three o'clock position by an automatic welding machine is executed at the tim...
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JP2548613B2 |
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JPH08281436A |
PURPOSE: To provide a two-electrode horizontal fillet welding submerged arc welding method of a T-joint to manufacture a welded wide flange shape with excellent efficiency by achieving the fillet welding under the prescribed welding cond...
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JPH08281440A |
PURPOSE: To prevent corrosion and crack of a connecting part of piping with a large quantity of water flowing in atomic reactor, etc. CONSTITUTION: At the time of connecting the metallic tubes of the same composition, a metal having high...
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JPH08276273A |
PURPOSE: To enable even a double V groove to be welded by means of two layers of one run continuous welding on the high alloy side, in the butt welding of a clad steel, and to remarkably improve the efficiency of welding execution. CONST...
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