Abstract:
A system for welding a tub of a railroad tank car includes a manipulator boom adapted to move with respect to the interior surface of the tank shell. A hybrid laser arc welding head mounted to the manipulator. A supplemental gas metal arc welding head includes dual wires of welding material and is mounted to the manipulator adjacent to the hybrid laser arc welding head. An inductive heating coil is mounted adjacent to the supplemental gas metal arc welding head. The hybrid laser arc welding head welds a seam of the railroad tank car shell with the supplemental gas metal arc welding head following to generally complete filling of a resulting weld joint with welding metal. The supplemental gas metal arc welding head is followed with the inductive heating coil to provide heat to normalize the resulting weld joint.
Abstract:
Le procédé comprend les étapes opératoires suivantes : on amène la pièce (2) sur un plateau (11) de façon coaxiale et on maintien ainsi la pièce; on entraîne en rotation le plateau (11) et la pièce (2) autour de leur axe commun (4, 1, 1a); on émet une onde ultrasons incidente vers la pièce (2), dans une direction tangentielle à sa paroi périphérique cylindrique (3); on capte une onde ultrasons réfléchie par le cordon de soudure (5) de la pièce (2), lorsqu'il est intercepté par l'onde ultrasons incidente; on détecte alors l'orientation angulaire du plateau (11) (orientation détectée du plateau (ODP)); on détermine l'orientation angulaire du plateau (11) correspondant à l'orientation angulaire finale préfixée de la pièce (OFp) (orientation de référence du plateau (ORP) ); on calcule la course angulaire entre l'orientation détectée du plateau (ODP) et l'orientation de référence du plateau (ORP).
Abstract:
A method for resistance welding/brazing a tube (10) to a container (12). A tube (10) is obtained having an axially-extending first portion (16) and a tube form (18) which extends transversely from the first portion. A container (12) is obtained having an orifice (26). A support tool (30)is obtained with an expandable head (32). The tube form is positioned proximate the outer surface (22) of the container and surrounding the orifice. The unexpanded head of the support tool is passed through the orifice of the container. The head of the support tool is expanded inside the container. The inner surface (24) of the container is supported with the expanded head of the support tool. A resistance current path is created through the tube form and the container creating a weld braze zone which includes at least some of the tube form and at least some of the container.
Abstract:
A tubular metal body 1 comprises a tube 2 extruded through a porthole die and composed of a plurality of components 2b joined to one another with a plurality of joint portions 2a extending over the entire length of the tube. The base material metal of the extruded tube 2 in each of the joint portions 2a is subjected to a modifying treatment to produce finely divided crystal grains. The modifying treatment for the extruded tube 2 is conducted preferably by frictionally agitating each joint portion using a probe 8 of a friction agitation joining tool 6. The tubular metal body 1 is available with an increased length in a larger size and has high pressure resistance.
Abstract:
The container (5) comprises a drop-dispensing insert (3). During drop dispensing liquid passes through throttling passages (1) and enters laterally into a delivery passage (2). The throttling passages (1) are arranged angular to the delivery passage (2) such that there are turbulences where the liquid enters the delivery passage (2). Due to these turbulences the liquid does not form a jet or spout, which would interfere with a controlled drop formation and dispensing. The throttling passages (2) are drilled using a laser which is fast and precise. Using the drop dispenser is easy even if a high dosing precision is required.
Abstract:
La présente invention a pour objet :- un procédé d'élaboration d'un conteneur fermé, dont la fermeture est étanche et résistance mécaniquement, par solidarisation de deux éléments métalliques du type corps (1) et couvercle (2);- ledit conteneur fermé, dont la structure comprend, solidarisés l'un à l'autre, les deux éléments métalliques identifiés ci-dessus;- les éléments constitutifs dudit conteneur, considérés indépendamment et conjointement, avant leur solidarisation : a) ledit corps (1) et b) ledit couvercle (2); la structure interne de l'un desdits deux éléments (1 ou 2) comportant un guide d'accostage (3 ; 30 ; 300), ainsi que c) ledit guide d'accostage (3; 30 ; 300), per se, lorsqu'il intervient à titre de pièce rapportée.
Abstract:
A method of manufacturing an outer shell unit (10) comprising a tubular outer shell (3) incorporating a damping force generating mechanism and a knuckle bracket (7) fitted to the outer shell (3) and allowing a knuckle to be connected thereto, comprising the steps of fixing the knuckle bracket (7) to the outer shell (3) by welding after closing the bottom part (31) of the outer shell (3) by a closing working, whereby, since the bottom part is formed by the closing working, a man-hour for cutting a faucet part and a man-hour for assembling a lower cap can be reduced to increase a productivity and, since the sealability of the outer shell at the bottom part is assured by the closing working, the bottom part must not be sealed by welding to increase a productivity.
Abstract:
An impact bonding process is used to produce an encapsulated layer cooking vessel (11) including a container structure (40) having a bottom wall (42), an intermediate layer (30), and a cap structure (20). The process includes centering the intermediate layer (30) on the bottom (42) of the container and welding the intermediate layer (30) into place. Welding the cap structure (20) to the intermediate layer (30) forms a resulting workpiece (70). The resulting wokpiece (70) is moved to a heating mechanism (80). The resulting workpiece (70) is heated to a temperature suitable for alloy or alloys used. The resulting workpiece (70) is moved from the heating device (80) and the resulting workpiece (70) is loaded into a bonding die (103) of a properly prepared impact press (100). The impact press compresses the intermediate layer (30) so that the intermediate layer (30) is flattened and substantially fills a space between the bottom (42) of the container structure (40) and the cap structure (20), the intermediate filling layer (30) being substantially encapsulated between the cap structure (20) and the bottom (42) of the container. The maximum amount of compression of the intermediate layer (30) during the process is 8-16 %.