Abstract

A method and apparatus are disclosed for securing a first metallic target object to a further metallic target object. The apparatus includes a heating element for heating a bonding interface region between juxtaposed portions of a first and further metallic target object, at least one chamber body portion securable around the interface region to form a chamber region surrounding the interface region, a pump member for at least partially removing oxygen from the chamber region and a target object locating unit arranged to locate portions of the first and further target objects in a juxtaposed position.

IPC Classes  ?

• E01B 29/42 - Undetachably joining or fastening track components in or on the track, e.g. by welding, by gluing; Pre-assembling track components by gluing; Sealing joints with filling components
• B23K 20/14 - Preventing or minimising gas access, or using protective gases or vacuum during welding
• B23K 20/16 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating with interposition of special material to facilitate connection of the parts, e.g. material for absorbing or producing gas
• B23K 101/26 - Railway- or like rails