A baffle plate assembly including a baffle plate, a ring and support members. The baffle plate has an outer diameter and configured to distribute gases through a showerhead of a showerhead assembly of a substrate processing system. The gases are received from a stem of the showerhead assembly. The ring has an inner diameter and configured to be disposed in a ring channel of the showerhead assembly. The inner diameter is greater than the outer diameter of the baffle plate. The support members extend from the baffle plate to the ring. The ring and the support members hold the baffle plate in a position between a top plate and a bottom plate of the showerhead.

The invention relates to a method for producing tailored sheet-metal strips, in which at least one sheet-metal strip having a substantially planar surface is integrally connected along its longitudinal edge to at least one further web-shaped semifinished product made of metal, wherein the at least one further web-shaped semifinished product differs from the at least one sheet-metal strip in terms of at least one of its properties, and wherein the at least one sheet-metal strip and the at least one further web-shaped semifinished product are fed continuously to at least one joining station, characterized in that a web-shaped semifinished product having a three-dimensional structure, a hollow profile and/or a multiplicity of recesses and/or holes in succession along its longitudinal edge is used as the at least one further web-shaped semifinished product which is fed to the joining station. An apparatus for carrying out the method is furthermore claimed.

Provided is an apparatus of manufacturing a seamless pipe. The apparatus includes a container receiving a work therein, a stem pressing one end of the work within the container, a die installed in a direction opposite to the stem, and having an extrusion hole comprised of a plurality of ports, a rotation member installed on a front end of the die, having a stirring tip inserted into a joint surface formed by abutting a plurality of metal pieces to each other on one surface, and rotating to perform a friction stir bonding in a state in which the one surface contacts the joint surface, and a correction mold including a metal pipe discharging path receiving a metal pipe manufactured by the friction stir bonding and discharging the metal pipe to an outside.

In a bobbin tool including a first shoulder surface which comes into contact with a front surface of a subject work piece, a second shoulder surface which is disposed so as to face the first shoulder surface and comes into contact with a rear surface of the work piece, and a shaft portion which connects the first shoulder surface and the second shoulder surface to each other with a gap therebetween fixed, the first shoulder surface and the second shoulder surface are provided with a first vortex groove and a second vortex groove which extend toward the front side of a tool rotation direction so as to be opened to the outer peripheral edge as it moves to the outer peripheral side.

An edge of each of a first metal member and a second metal member is formed to have a U-shaped cross section with a first horizontal plate projecting from a base edge of a vertical plate, and with a second horizontal plate projecting from a top edge of the vertical plate. The second metal member includes a projecting part. The joining method includes: an abutting step of forming an abutted part by abutting a front surface of the first horizontal plate the first metal member against a second side surface of the second metal member; and a joining step of performing friction stir welding of the first metal member and the second metal member by inserting a stirring pin from the projecting part and moving a joining rotating tool along an inner corner at the top edge of the vertical plate of the second metal member while making only the stirring pin in contact with the first metal member and the second metal member.

An annular power transmission element with a longitudinal axis that has a first annular part, a second annular part with torque transmission means and a third annular part. The first, second and third annular parts are integral with each other. The first annular part and the third annular part are made of a first metallic material and the second annular part is made of a second metallic material having a density greater than the density of the first metallic material. The second annular part is locked longitudinally between the first annular part and the third annular part and radially on the first annular part, the first annular part is in contact with the third annular part and welded thereto.

An example engine-driven power system includes: an engine; a generator configured to convert mechanical engine power to electrical power; first and second power subsystems configured to convert the mechanical or electrical power to first and second power outputs, wherein the first and second power subsystems are configurable to output the first and second power outputs simultaneously; an input device configured to control a load management priority, wherein the load management priority comprises at least one of an adjustable ranking, an adjustable balance, or bus voltage thresholds; and control circuitry configured to: control the first and second power subsystems to output the first and second power outputs based on first and second demands; and, in response to determining that a total demand exceeds a capacity, control the first or second power subsystems to reduce the power outputs or the demands based on the load management priority.

A method for producing the metal cylinder material according to the present disclosure includes: a process A of forming a slitted cylinder-shaped body including at least one slit extending from one end face to the other end face of a cylinder barrel portion consisting of at least one metal plate material; a process B of forming a filler-equipped cylinder-shaped body including a filling portion obtained by filling the slit with a filler for the filler to be filled throughout the slit in a length direction of the slit; and a process C of, by inserting at least a probe of a friction stir rotation tool including the probe at least into the filling portion and executing FSP, reforming at least the filling portion of the filler-equipped cylinder-shaped body to obtain the metal cylinder material including an FSP portion.

Methods and process flows for diffusion bonding and forming metallic sheets are disclosed herein. The methods include stacking a first metallic sheet and a second metallic sheet to define a sheet stack. The methods further include creating a pneumatic seal between the first metallic sheet and the second metallic sheet to define a sealed sheet stack that defines a pneumatically isolated region. The methods also include increasing a surface area of the sealed sheet stack to define an expanded sheet stack. The methods further include compressing at least a portion of the expanded sheet stack to form a diffusion bond between a corresponding portion of the first metallic sheet and an opposed portion of the second metallic sheet thereby defining a diffusion bonded sheet stack.

Method and device for quick and reliable tool changing in the process of friction stir welding, comprising the following features: a) a robot (1) with a robot pivoting head (2) and a friction welding head (3) with a welding shoe (13), wherein the robot (1) can select a friction welding head (2) from a tool magazine (4), b) a device for sensing the mechanical forces at the welding pin tip (14) of each welding shoe (13) of a friction welding head (2), wherein a sensor (16) is attached to the frustoconical part of the tool (11), wherein a sensor (21) is provided, and wherein furthermore a sensor (25) is provided in the flared pin receptacle (26) and a piezoelectric force-measuring sensor (24) is provided in the longitudinal axis of the pin shaft (27) for measuring the axial force acting on the welding pin tip, c) an RFDI code provided on the pin shaft (27) of each welding shoe (13) for identification, d) a changing skid (28) provided on each welding shoe (13).