A method for producing a metal bladed element of a turbine engine, in particular of an aircraft, includes steps of producing the bladed element, depositing a coating made of wear-proof material on at least one portion of the bladed element and verifying, preferably visually, the conformity of the bladed element. Verifying the conformity of the bladed element includes implementing a verification element on the bladed element. The bladed element is configured according to a conformity threshold value to conceal a non-conformity of the coating, if the non-conformity has at least one dimension less than the threshold value, and to show at least one portion of this non-conformity if the at least one dimension is greater than the threshold value.

A method for producing a metal bladed element of a turbine engine, in particular of an aircraft, includes steps of producing the bladed element, depositing a coating made of wear-proof material on at least one portion of the bladed element and verifying, preferably visually, the conformity of the bladed element. Verifying the conformity of the bladed element includes implementing a verification element on the bladed element. The bladed element is configured according to a conformity threshold value to conceal a non-conformity of the coating, if the non-conformity has at least one dimension less than the threshold value, and to show at least one portion of this non-conformity if the at least one dimension is greater than the threshold value.

A welding method using coated abrasive particles, coated abrasive particles, coating system and sealing system which uses particles, in which a hard material layer is applied around abrasive particles such as cubic boron nitride (cBN) and protects against oxidation during welding. The hard material compound in the coating may include a carbide, in particular titanium carbide. A sealing system is composed of stator and rotor blade having the layer system.

Provided are a flux composition that is applicable without any film formation step, and solder paste, a solder joint and a solder joining method using the flux composition. The flux composition contains 20 wt % or more and 50 wt % or less of an epoxy resin, 15 wt % or more and 45 wt % or less of diallyl bisphenol A, and 1 wt % or more and 30 wt % or less of organic acid.

The present disclosure relates to a method for producing a tubular welding electrode comprising the steps of providing a strip of metal material having a length and first and second surfaces, wherein at least the first surface of the strip is at least substantially coated with nickel or a nickel alloy and then copper or a copper alloy, forming the strip into a “U” shape along the length, filling the “U” shape of the strip with a granular powder flux, and mechanically closing the “U” shape to form a sheath of nickel- and copper-coated metal material that substantially encases the granular powder flux, thus forming a tubular welding electrode. In certain embodiments, the metal material may be steel. In certain other embodiments, the metal material may be nickel or a nickel alloy, which may be at least substantially coated with copper or a copper alloy.

A soldering tool may include a tool body comprising circuitry configured to interface with a controller, and a tip portion including a tip that is heated to melt solder and a handpiece that is graspable by an operator. The tip portion includes a heater and a sensor disposed in the tip. The tip portion includes a tip memory device disposed at the handpiece. The tip memory device is configured to store parametric data. The tip memory device is configured to exchange data with the controller.

Properties and performance of weld material between metals in a weldment is controlled by modifying one or more of the nitrogen content and the carbon content to produce carbide (e.g. MC-type), nitride and/or complex carbide/nitride (e.g. MX-type) type precipitates. Fusion welding includes (i) adjusting shield gas composition to increase nitrogen/carbon gas and nitride/carbide species, (ii) adjusting composition of nitrogen/carbon in materials that participate in molten welding processes, (iii) direct addition of nitrides/carbides (e.g. powder form), controlled addition of nitride/carbide forming elements (e.g. Ti, Al), or addition of elements that increase/impede solubility of nitrogen/carbon or nitride/carbide promoting elements (e.g. Mn), and (iv) other processes, such as use of fluxes and additive materials. Weld materials have improved resistance to different cracking mechanisms (e.g., hot cracking mechanisms and solid state cracking mechanisms) and improved tensile related mechanical properties.

Exothermic welding molds, weld-metal containing cartridges for such molds, and methods of use are provided. The mold, cartridges, and methods can provide interaction between the cartridge's disk member with the mold, which allows the housing member to be withdrawn from the mold while leaving the disk member and weld-metal in place. The interaction can be a rotational restraint alone, a vertical restraint alone, or combinations thereof. Alternately, the interaction can be an outward pressure on the housing member and/or disk member, a shear force on the housing member and/or disk member, or combinations thereof. The outward pressure on the housing member and/or disk member can alternately be provided without interaction between the disk member and the mold, but rather by the simple application of an internal pressure to the cartridge. The internal pressure can be applied by squeezing the walls of the cartridge and/or by depressing a pusher member.

The invention relates to a soldering material comprising an alloy that in addition to Sn (tin) as the major constituent, comprises 10 wt. % or less Ag (silver), 10 wt. % or less Bi (bismuth), 10 wt. % or less Sb (antimony) and 3 wt. % or less Cu (copper). Furthermore, the invention relates to a soldering material comprising a plurality of soldering components with such alloy compositions and contents in the soldering material that on fusing the soldering components an alloy is formed that comprises Sn, Ag, Bi, Sb and Cu in the abovementioned alloy contents.

A bonding material (10) of the present invention includes an amorphous silver film (12).