A method comprises: providing a spiral metallic workpiece having a cast structure associated with such spiral; and at least partially flattening the workpiece.

A method comprises: providing a spiral metallic workpiece having a cast structure associated with such spiral; and at least partially flattening the workpiece.

A battery manufacturing method includes: winding positive and negative electrode plates and a separator to form a wound electrode assembly; cutting unwound portions of the positive and negative electrode plates and the separator such that the separator constitutes an outermost layer of the wound electrode assembly when the winding is completed; further winding around the wound electrode assembly the cut unwound portions; fixing a part of a terminal end of the separator in a lateral direction to the wound electrode assembly; and performing heat welding on parts of both lateral ends of an outermost portion of the separator in the wound electrode assembly, which are located above an electrode active material-uncoated portion of the positive or negative electrode plate to fix the lateral ends to the wound electrode assembly.

The present invention relates to a 3D-printed iron based alloy product comprising carbon, tungsten, vanadium, cobalt, chromium and molybdenum with very high hardness and very good high temperature properties thermal properties as well as a method of preparing the 3D-printed product and a powder alloy.

Disclosed is a micro-region semi-solid additive manufacturing method, where rod-shaped materials are used as consumables, and heating modes such as a high-energy beam, an electric arc, a resistance heat, or the like are applied to the front end of the consumables to enable the front end to be in a semi-solid state in which the solid-liquid two phases coexist; at the same time, the rotational torsion and the axial thrust applied on the consumables have powerful effects such as shearing, agitation and extrusion, that is, the mold-free semi-solid rheoforming is performed. The consumable is transmitted to the bottom layer metal continuously in this manner to form metallurgical bonding, the stacking process is repeated according to a planned route obtained after discretization slicing treatment, and then an object or a stack layer in a special shape can be formed.

The present invention relates to a metallic nano structure including a plurality of metallic nano materials; and a junction locally disposed in a region where the metallic nano materials adjacent to each other among the plurality of metallic nano materials are in contact with each other in order to bond the adjacent metallic nano materials.

A method of manufacturing a mask frame assembly includes: welding fixing ends of a long-side support bar on a frame; and fixing a mask having a pattern area to be divided by the long-side support bar, on the frame, wherein the welding of the fixing ends of the long-side support bar on the frame includes forming welds asymmetrically with respect to a longitudinal central axis of the fixing ends.

A method of manufacturing a mask frame assembly includes: welding fixing ends of a long-side support bar on a frame; and fixing a mask having a pattern area to be divided by the long-side support bar, on the frame, wherein the welding of the fixing ends of the long-side support bar on the frame includes forming welds asymmetrically with respect to a longitudinal central axis of the fixing ends.

According to an embodiment, a welding method comprises pretreatment of melting a part of the first member formed by die casting and solidifying the part of the first member. The method may comprise welding the first member and the second member by melting the solidified part of the first member and the second member in contact with each other.

The invention relates to a machine for labeling blank-labeled cryogenically-frozen vials or ampoules, which contain heat-labile biological materials, and to which a laser-light sensitive material had been applied prior to freezing. Accordingly, the machine has been designed to maintain the integrity of the biological materials throughout all phases of the labeling process. The machine generally comprises a master control system; a programmable user interface; a frame; cryogenic freezer assemblies, for keeping the vials at the required low temperatures; an infeed assembly, configured to receive and position blank-labeled cryogenic vials; a cryostatic labeling/quality control tunnel, wherein the vials are maintained at the required temperature, labeled by laser ablation, and checked for quality; and, an outfeed assembly. The machine further comprises a means for transporting the vials from the infeed assembly to the tunnel, and from the tunnel to the outfeed assembly. Vials labeled according to the instant disclosure are ultimately manually or automatically loaded into cryogenic shipping containers.