A method and a system of balancing a shaft for an axle assembly. The method may include using an electrical resistance welder to weld a balance weight to a shaft proximate an imbalance location using an insert or brazing material. The insert material may have a lower liquidus temperature than a liquidus temperatures of the shaft and balancing weight.

The invention relates to an anodic bonding method for bonding two elements with an intermediate layer. The invention especially, but not exclusively, relates to an anodic bonding method for between a metallic element and a heterogeneous element, for example a glass, artificial sapphire or ceramic element. The specificity and aim of the present invention is to produce an assembly that is gas-tight and fluid-tight, solderless, brazing- or welder-free and without organic compound (glue). The present method has multiple industrial applications, including making it possible to attach a watch-glass, typically made of mineral glass, sapphire or transparent or translucent ceramics, to a bezel or case middle of a watch case using the anodic bonding technique.

It is an objective of the invention to provide a conductive joint article exhibiting electrical joinability comparable to that of solder joining of easy-to-solder joinable metals even when a joined member of the conductive joint article is made of a hard-to-solder joinable metal. There is provided a conductive joint article with conductive joined members electrically joined via a joining layer, at least one of the joined members being made of a hard-to-solder joinable metal. The joining layer comprises an oxide glass phase and a conductive metal phase. The oxide glass phase includes vanadium as a major constituent and at least one of phosphorus, barium and tungsten as an accessory constituent, and has a glass transition point of 390 C. or less. And, connection resistance between the joined members exhibits less than 110.sup.5 /mm.sup.2.

A resistance soldering apparatus suited for soldering an electrical terminal to a glass surface and a method of using such an apparatus is described herein. The resistance soldering apparatus includes an electrode having a distal tip and an electrical terminal having a first major surface in which an indentation is defined and a second major surface opposite the first major surface on which a layer of a solder composition is disposed. The indentation is configured to receive the distal tip of the electrode. The distal tip of the electrode is placed within the indentation and an electrical current is passed through the electrode and the electrical terminal, The electrical current is sufficient to heat the electrode and melt the solder composition on the second major surface.

The present invention relates to inserts for hard facing substrates, and a method for hard facing substrates. An insert according to an embodiment of the present invention may comprise a body of ultra-hard material having a welding node located on a first surface thereof and at least one wire electrically connecting the first surface to a second, opposite, surface. In use, the inserts may be temporarily connected to a substrate by applying a resistance welding electrode to the welding node, thereby causing the wires on the second surface to melt and weld the insert to the substrate. A subsequent brazing step may firmly attach the inserts to the substrate.

A brazing system according to an embodiment of the present invention, which is for brazing an object to be bonded to a base material, comprises: a turntable provided with a reception part for receiving the base material and rotatable clockwise or counterclockwise; a base material supply device for supplying the base material to the reception part; a brazing filler metal supply device for supplying a brazing filler metal to an upper side of the base material; a first heating device for bonding the brazing filler metal to the base material; a bonding object supply device for supplying the object to be bonded to an upper side of the brazing filler metal bonded to the base material; a second heating device which is in contact with opposite sides of the base material to fix the base material and is provided with electrodes for supplying electric current to the base material so as to bond the object to be bonded to the base material; and a cooling device which comes into contact with the object to be bonded to cool the object to be bonded.

A method for braze repair of tight cracks in a superalloy component is provided. The method includes directing energy, e.g., from an acoustic energy source, towards surfaces of the tight crack to break up one or more contaminants, corrosion products, or oxides at the surface. The directed energy may cause opposed walls of the tight crack to vibrate to break up the oxides, and to generate a modest heat for allowing infiltration of the tight crack with a braze material. The braze material is then melted at a melt temperature of the braze material but below the melt temperature of the component. The braze material is then solidified to repair the tight crack.

A method of method of resistance soldering may include providing a controllable electrical power supply having a negative pole and a positive pole. The method may include providing an electrical terminal having a first surface and a second surface opposite the first surface on which a solder layer is disposed. The method may include providing a resistance soldering device with an electrode having a first electrical conductor connected to the positive pole of the electrical power supply, a second electrical conductor connected to the negative pole of the electrical power supply, an electrically resistive bridge interconnecting the first and second electrical conductors. The method may include turning the electrical power supply on to provide an electrical current between the positive and negative poles. The method may include contacting the electrode to the first surface of the electrical terminal.

An aluminum alloy brazing sheet for heat exchangers has a core, a sacrificial material formed on one side of the core, and a brazing filler metal formed on the other side of the core. The core is made of an aluminum alloy containing Si, Cu, Mn, and Al. The sacrificial material is made of an aluminum alloy containing Si, Zn, Mg, and Al. The brazing filler metal is made of an aluminum alloy. The aluminum alloy brazing sheet for heat exchangers has a work hardening exponent n of not less than 0.05. The core has an average crystal grain size of not more than 10 m in a cross-section. The aluminum alloy brazing sheet for heat exchangers has excellent strength and corrosion resistance even when it is formed into a thin material and also has excellent high frequency weldability and weld cracking resistance during electric resistance welding.

The present invention is intended to modify a composition of a typical brazing Ni-base amorphous alloy ribbon to reduce clogging of a casting nozzle and embrittlement in manufacturing of the ribbon, thereby improving workability and improving corrosion resistance and bonding strength of a stainless steel bonded body used for a heat exchanger etc.

Provided are a brazing Ni-base amorphous alloy ribbon having a composition represented by a composition formula: Ni.sub.100-d-x-y-z-f-gCr.sub.dP.sub.xSi.sub.yB.sub.zC.sub.fN.sub.g (in units of mass %, 22.00d29.00, 4.00x8.00, 1.00y7.00, 0<z0.20, 0.005f0.100, 0.001g0.050, and 7.00x+y13.00) and a stainless steel bonded body formed by braze-bonding using the brazing Ni-base amorphous alloy ribbon.