A head piece and a welding tool, in particular an FSW tool, equipped therewith, and a welding method. The head piece has a through-opening for a plasticizing welding means, in particular a rotating welding pin. The head piece also has a profiled end face which faces the workpiece during welding and has end face regions of different heights and a sloping shoulder, which conducts the plasticized material of the workpiece and connects the end face regions.

A friction stir welding tool, which includes a pin and a shoulder rigidly connected to the pin, for welding components composed of a parent material having a melting point of more than 900° C., in particular steel. To achieve a particularly long service life of the tool even with thick-walled components, it is provided that the shoulder is at least partially composed of a first material and the pin is at least partially composed of a second material. Furthermore, the shoulder is at least partially composed of a first: material and the pin is at least partially composed of a second material. In addition, a method for joining components of one or more parent materials having a melting temperature of more than 900° C. is provided.

A tank, in particular for a liquid hydrogen reservoir, provided with at least one dome fixed by way of an outer welded joint and having a central portion provided with at least one free end including a first connecting element and at least one dome provided with an open end including a second connecting element, the dome and the central portion being able to be joined together, the first connecting element and the second connecting element being configured to form, when the central portion and the dome are joined together, a protruding tab extending toward the outside of the tank and able to be welded to a protruding end, such a protruding tab making it possible in particular to join together the tank, this being done entirely from the outside of said tank, and to easily mount and dismount the dome, in particular without accessibility issues.

This disclosure relates to a polycrystalline cubic boron nitride, PCBN, composite material comprising cubic boron nitride, cBN, particles and a binder matrix material in which the cBN particles are dispersed. The binder matrix material comprises one or more superalloys.

A variable gage blank is formed from a set of components joined by a joining process. The set of components include a web, a first flange, and a second flange. The components have respective thicknesses. The first flange and the second flange may be modified to include a transition region with a variable thickness that terminates on an edge having a thickness substantially similar to a thickness of the web.

A novel bicycle frameset created from a novel frame assembly and a novel fork assembly, where the components of the frame are joined together via the friction stir welding of the tubular components to partial bracket members and where the joining of the partial bracket members via friction stir welding rigidly connects the tubular components to create the frame, and where the components of the fork are joined together via friction stir welding of tubular components to a fork crown, and where the fork and frame combine form the frameset.

A video coder is configured to form, in a symmetric motion vector difference mode, a List 0 (L0) base vector using a L0 Advanced Motion Vector Prediction (AMVP) candidate list and a List 1 (L1) base vector using a L1 AMVP candidate list; determine a refined L0 motion vector and a refined L1 motion vector by performing a decoder-side motion vector refinement process that refines the L0 base vector and the L1 base vector; and use the refined L0 motion vector and the refined L1 motion vector to determine a prediction block for a current block of a current picture of the video data.

A welding and deburring system is provided for joining first and second work pieces to one another. The system includes a friction stir welding tool for joining the first and second work pieces to one another at a weld. The system further includes a deburring tool attached to the friction stir welding tool and removing a material flash generated at the weld. The system further includes one or more nozzles disposed in a fixed position relative to the friction stir welding tool, with the nozzles directing a cryogenic fluid to at least one of the friction stir welding tool, the deburring tool, the first work piece, the second work piece, and the weld.

Provided is a joining method that can prevent a plastic flowing material from flowing out from a butt section and that can reduce the thickness and weight of metal members. The joining method is for joining a first metal member and a second metal member by using a rotary tool comprising a stirring pin, and is characterized in that: the stirring pin comprises a flat surface perpendicular to the rotation axis of the rotary tool and comprises a protruding section protruding from the flat face; and in a friction stirring step, the flat surface is brought into contact with the first metal member and the second metal member, and a front end face of the protruding section is inserted deeper than an upper overlapping section to join an upper front butt section and the upper overlapping section.

The presently disclosed subject matter relates to multi-material electrical contacts, and methods of making multi-material electrical contacts.