A contact tip suitable for electric arc welding has a consumable electrode. The contact tip has a body which defines a bore through which the electrode is able to pass to enable electric current from a welding power supply to be transferred from the body to the electrode. The body, in part of the length of the bore between an inlet end and an outlet end, has at least one region (herein referred to as a primary contact region) at which the body is adapted to enable primary electrical contact with the electrode, and along a remainder part of the length of the bore, the body is adapted such that any secondary contact between the body and the electrode along the remainder part does not substantially short circuit the primary electrical contact in the primary contact region of the bore.

Consumable electrode arc welding

A holding assembly for retaining a deposition ring about a periphery of a substrate support in a substrate processing chamber, the deposition ring comprising a peripheral recessed pocket with a holding post. The holding assembly comprises a restraint beam capable of being attached to the substrate support, the restraint beam comprising two ends, and an anti-lift bracket. The anti-lift bracket comprises a block comprising a through-channel to receive an end of a restraint beam, and a retaining hoop attached to the block, the retaining hoop sized to slide over and encircle the holding post in the peripheral recessed pocket of the deposition ring.

Ring assembly for substrate processing chamber

A substrate processing chamber component (20) is capable of being exposed to an energized gas in a process chamber. The component has an underlying structure (24) and first (30a) and second coating (30b) layers. The first coating (30a) layer is formed over the underlying structure, and has a first surface (32) with an average surface roughness of less than about 25 micrometers. The second coating layer (30b) is formed over the first coating layer, and has a second surface (25) with an average surface roughness of at least about 50 micrometers. Process residues can adhere residues can adhere to the surface of the second coating layer (30b) to reduce the contamination of processed substrates.

Process chamber component with layered coating and method

A tool for forming a friction stir weld joint in a workpiece is provided. According to one embodiment, the tool includes a rotatable pin having first and second ends and defining a stirring portion therebetween structured to frictionally engage the workpiece so as to at least partially form the friction stir weld joint. In particular, the stirring portion of the pin defines at least one groove and ridge, each of which extend generally circumferentially around an axis of the pin. The tool can also include a second shoulder opposing the first shoulder such that the pin extends therebetween.

Apparatus and method for friction stir welding utilizing a grooved pin

The present invention provides a field weldable connection. In one embodiment, the field weldable connection is a downhole connector assembly for sealingly attaching a first and a second segment of a control line. The control line has an outer housing that encapsulates a polymeric secondary housing. A communication line runs therethrough the secondary housing. The connector further comprises a weld coupling welded to the outer housing of the first and second segments of the control line. To protect the communication line from the thermal radiation and heat generated during the welding process, at least one reflective sleeve replaces a portion of the secondary housing at a location intermediate the communication line and the welds of the coupling.

Field weldable connections

PROBLEM TO BE SOLVED: To provide a friction stir tool by which a bonding part and an agitating part in which burrs and internal defects or the like hardly occur are easily formed and a method for use such as a bonding method using the tool. SOLUTION: The friction stir tool 1 is provided with a columnar tool main body 2 and an agitating pin 10 which droops from the central part of the bottom surface 3 of the tool main body 2, a ring shaped projecting part 4 is formed near the peripheral edge of the bottom surface 3 of the tool main body 2, a pillar shaped body (projecting body) 8 which droops nearer to the bottom surface 3 than the ring shaped projecting part 4 is formed between the ring shaped projecting part 4 and the agitating pin 10 and also an outside metal pool part 6 is positioned between the ring shaped projecting part 4 and the pillar shaped body 8, and moreover an inside metal pool part 9 is positioned in the bottom surface 3 side of the pillar shaped body 8. COPYRIGHT: (C)2002,JPO

Friction stir tool and method for using it

PROBLEM TO BE SOLVED: To provide a friction/agitation joining tool capable of easily forming a joining part in which burrs and internal defects or the like hardly occur. SOLUTION: The friction/agitation tool 1 is provided with a columnar tool body 2, an agitating pin 10 hanging down from the vicinity of the center of the bottom surface 3 of the tool body 2, and a backing part 14 arranged at the tip end 12 of the agitating pin 10. Spiral type projected lines 8 and 16 are arranged between the peripheral edge and the agitating pin 10 in the bottom surface 3 of the tool body 2 and the upper surface 15 of the backing part 14 facing the bottom surface 3 of the tool body 2 in the backing part 14, also a ring-shaped projected part 4 is arranged in a position nearer to the tool body 2 than the spiral type projected line 8 closer to the peripheral edge of the bottom surface 3 of the tool body 2, and moreover a recessed groove 6 which is recessed toward the tool body 2 is formed between the ring shaped projected part 4 and the spiral type projected line 8.

Friction/agitation joining tool

PROBLEM TO BE SOLVED: To obtain a composite improved in joining strength to a resin member by carrying out laser joining using an aluminum alloy member having its surface form complicated SOLUTION: After the surface of an aluminum alloy plate to be joined is made uneven by etching, the resin member is laid on one side of the aluminum alloy plate to overlap with each other After that, the other side of the aluminum alloy plate is irradiated with laser beams to soften the resin member, and the unevenness is filled with the resin member The aluminum alloy plate can be blasted before being etched COPYRIGHT: (C)2011,JPO&INPIT

Method for laser-joining of aluminum alloy plate and resin member together

PROBLEM TO BE SOLVED: To enable welding simultaneously butted parts on the upper and lower sides of tip parts in the width direction or in the longitudinal direction of face plates on the upper and loner sides of a hollow material and a honeycomb panel SOLUTION: A rotary tool 1A for friction-stirring-welding is composed of an upper rotary body 2 equipping with a base 2bs having a recessed surface, an upper stirring pin part 3 extending downward from the base 2bs of the upper rotary body 2, a lower rotary body 4 to which a front surface bus having a recessed surface, a plane or a projecting surface is concentrically combined on the lower end of the upper stirring pin part 3 and which is equipped with a base 4bs having a recessed surface on its bottom, and a lower stirring pin part 5 projecting downward concentrically from the base 4bs of a lower rotary body 4

Rotary tool for friction-stirring-welding

PROBLEM TO BE SOLVED: To obtain through laser welding a sound weld zone with blowhole defects suppressed. SOLUTION: In the laser welding of an aluminum alloy in which molten metal is unexposed in the rear surface in a weld zone, a weld bead is formed which has a penetration depth ratio (aspect ratio) of 0.9 or less against the bead width. In welding a material having a large thickness, an upper plate is used which is provided with a groove that enlarges a penetration depth. Residual foams are reduced by minimizing the aspect ratio to 0.9 or less, enabling a weld zone to be obtained with a satisfactory mechanical characteristics.

元司堀田

Papers

Friction stir tool and method for using it

Friction/agitation joining tool

Method for laser-joining of aluminum alloy plate and resin member together

Rotary tool for friction-stirring-welding

Laser welding method for aluminum alloy without exposing molten metal on the rear surface

元司 堀田

Papers

Friction stir tool and method for using it

Friction/agitation joining tool

Method for laser-joining of aluminum alloy plate and resin member together

Rotary tool for friction-stirring-welding

Laser welding method for aluminum alloy without exposing molten metal on the rear surface

元司堀田