The present invention provides a fluid-related function device capable of suppressing deformation of a connection member and a case part which may adversely be generated by expansion of fluid stored in a space in which spatters at the time of resistance-welding are trapped. A pressure switch includes a space in which spatters generated at the time of projection-welding are trapped. The space is provided between a joint and a cap member. A communication passage brings inside and outside of the space into communication with each other. The communication passages is formed such that it permits fluid to pass through the communication passages and restrains spatters from passing through the communication passages.

The present invention provides a fluid-related function device capable of suppressing deformation of a connection member and a case part which may adversely be generated by expansion of fluid stored in a space in which spatters at the time of resistance-welding are trapped. A pressure switch includes a space in which spatters generated at the time of projection-welding are trapped. The space is provided between a joint and a cap member. A communication passage brings inside and outside of the space into communication with each other. The communication passages is formed such that it permits fluid to pass through the communication passages and restrains spatters from passing through the communication passages.

The present invention relates to a shaping and welding device and process of connector pipes or dowels (1) primarily intended for use in compressors. More specifically the process presented here concerns the shaping and welding of copper pipes (1) used as connectors for suction, discharge and process, the metal housing (2) of hermetic compressors, with the goal of making this equipment much more practical, efficient and economical.

The present invention relates to a shaping and welding device and process of connector pipes or dowels (1) primarily intended for use in compressors. More specifically the process presented here concerns the shaping and welding of copper pipes (1) used as connectors for suction, discharge and process, the metal housing (2) of hermetic compressors, with the goal of making this equipment much more practical, efficient and economical.

An apparatus for improving weld uniformity, controlling weld spatter and reducing weld joint bending stresses. The apparatus includes a first component having a welding contact point and a second component having a weld zone for engaging with the welding contact point of the first component. At least one weld upset distance stop is formed on the first or second component operative to control weld spatter and to reduce weld joint bending stresses.

A resistance welding device is provided with a moving distance measuring section for measuring distances between conductors to be joined before and after joining and evaluating joining quality based on the distances, and a projection including a base and a projecting surface is provided to the conductor to be connected in order to easily secure a distance between the conductors after the joining.

A resistance welding device is provided with a moving distance measuring section for measuring distances between conductors to be joined before and after joining and evaluating joining quality based on the distances, and a projection including a base and a projecting surface is provided to the conductor to be connected in order to easily secure a distance between the conductors after the joining.

The present disclosure is related to a method of welding a component, such as a fastener, with a base metal. The method includes the step of stud welding a component with a base metal to create at least one weld joint using at least one electrode. The method continues with the steps of emitting ultrasonic waves from an ultrasonic sensor on an electrode and receiving reflections of those ultrasonic waves with the ultrasonic sensor. The method proceeds with the step of generating an acoustic map based on the reflections of the ultrasonic waves. The method continues with the step of analyzing the acoustic map to determine a quality of the at least one weld joint.

To bond bonding target members stacked on top of each other without generating dust or spatter into an electrically bonded article with improved mechanical strength against strong vibration etc. A first bonding target member or second bonding target member includes a relative displacement amount setting portion for setting the distance by which the bonding target portion of the first member and the bonding target portion of the second member are relatively displaced during bonding, and a current conduction suppressing layer is formed on the relative displacement amount setting portion. The second or first member includes a setting face that is placed opposed to the current conduction suppressing layer of the first or second member. In a state where the first and second members have been positioned, the distance between the current conduction suppressing layer and the setting face is equal to the width H of the bonded portion.

A conductor assembly includes a first conductor made of metal and a second conductor bonded to the first conductor. The second conductor is made of a metal plate having first and second surfaces opposite to each other. The second conductor has a projection locally projecting from the first surface. A recess is provided in the second surface of the second conductor opposite to the projection. The projection of the second conductor has a portion contacting and entering into the first conductor. The projection of the second conductor is resistance-welded to the first conductor. The portion of the projection of the second conductor has two tips locally projecting from the portion of the projection of the second conductor and entering the first conductor.