In various embodiments, metallic wires are fabricated by combining one or more powders of substantially spherical metal particles with one or more powders of non-spherical particles within one or more optional metallic tubes. The metal elements within the powders (and the one or more tubes, if present) collectively define a high entropy alloy of five or more metallic elements or a multi-principal element alloy of four or more metallic elements.

In one embodiment, sheathed thermite rods are provided. For instance, a sheathed thermite rod may comprise a mixture of thermite within an outer casing, such as an aluminum tube, that adds rigidity and allows for better continuity of a burn across breaks in the thermite rod. The sheathing also allows for manufacture of the thermite rods to have reduced drying period, increasing speed of production. In another embodiment, tablet-based thermite rods are provided. A thermite tablet rod herein may comprise a series of inline thermite tablets contained within an outer casing. The tablets may be consecutively adjacent to one another along the length of the outer casing, and substantially conforming to the interior cross section of the outer casing, where the tablets are adjoined by pressure, an adhesive, and/or a burn continuance material.

An apparatus for an electrical discharge machine for milling a shaped cavity in a workpiece includes a hollow electrode having a metallic inner shell with at least one passage for receiving dielectric fluid. A layer including at least one brass alloy is provided over the inner sheel and exhibits a zinc content greater than a zinc content of the inner shell.

The present disclosure provides a copper-phosphorus-tin brazing wire and a preparation method thereof, relates to the technical field of brazing materials. The copper-phosphorus-tin brazing wire is of a three-layer structure, the inner layer is Cu, the middle layer is Cu-14P alloy, and the outer layer is Sn, wherein the mass percentage of Sn is over 7%. The present disclosure solves the technical problems in the prior art that the copper-phosphorus-silver brazing filler metal is prone to produce defects such as pores and inclusions when brazing copper alloys, which leads to the decline of the mechanical properties of the joint, and simultaneously provides the preparation method of the copper-phosphorus-tin brazing wire, such that the technical problem that it is difficult to obtain copper-phosphorus-tin brazing wire with a wire diameter below 0.5 mm under the condition of high Sn content is solved.

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 suppressor having a body and a first connector half coupled to the body, wherein the first connector half includes a first component that includes at least one channel and a first surface; and wherein the body provides a second surface, wherein a gap between the first surface and the second surface defines at least one track; wherein the gun includes a second connector half comprising at least one protrusion, wherein the protrusion and channel have corresponding shapes that allow the protrusion to be inserted through the channel and into alignment with the track, wherein the first component may be rotated with respect to the protrusion and the body to bring the protrusion out of alignment with the channel so that the first and second surfaces clamp the protrusion to thereby secure the first connector half and second connector half with respect to each other.

The invention relates to a coated electrode comprising a central metal core being surrounded at least in part by an outer coating containing rutile and at least one lithium-based compound and being free of sodium feldspar and potassium feldspar. According to the invention, the electrode comprises at least one inner coating arranged between the outer coating and the central metal core, said inner coating containing at least one sodium-based compound and/or at least one potassium based compound. Associated process for welding stainless steel.

The present disclosure relates to a method for producing a tubular welding electrode comprising the steps of providing a strip of copper-coated steel material having a length and first and second surfaces, wherein at least the first surface of the strip is at least substantially coated with 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 copper-coated steel material that substantially encases the granular powder flux, thus forming a tubular welding electrode.

A housing for a control unit of a motor vehicle has a housing element and a further element attached to the housing element by way of a joining technique that does not include a joining layer or by way of a joining layer. The housing element has a main body composed of a light metal and a protective layer applied to the main body. The protective layer is arranged between the main body and the attached further element. The invention further relates to a method for producing a housing and to a control unit.

A heat transfer tube includes: a tube body made of an extruded material of an aluminum alloy having a composition including: 0.3 mass % or more and less than 0.8 mass % of Mn; more than 0.1 mass % and less than 0.32 mass % of Si; 0.3 mass % or less of Fe; 0.06 mass % or more and 0.3 mass % or less of Ti; and Al balance including inevitable impurities, a ratio of a Mn content to a Si content, Mn %/Si %, exceeding 2.5; and a Zn-containing layer provided to an outer surface of the tube body.