An electrode and a device for resistance spot welding are capable of preventing an occurrence of a surface spatter by using magnetism. The electrode may include a shank and a welding tip mounted to an end of the shank. A magnetic unit is installed on an outer peripheral surface of the shank to form a magnetic field and to form a Lorentz force in a direction of rotation along a circumferential direction of the shank by the magnetic field and a current flowing through the shank.

The present disclosure provides a system and method for measuring energy conversion efficiency of an inertia friction welding (IFW) process in a non-contact manner. The system includes an IFW machine, a Hall sensor, a data acquisition module, a processing module and a stabilized direct current (DC) power supply. The stabilized DC power supply provides electrical energy for the Hall sensor. The Hall sensor is provided beside a flywheel of the IFW machine, so that the flywheel is within a detection range of the Hall sensor. A magnet is provided on the flywheel. The data acquisition module acquires a Hall electric potential change caused by a relative movement between the magnet and the Hall sensor during the IFW process, and transmits the Hall electric potential change to the processing module to calculate the energy conversion efficiency of the IFW machine.

The present disclosure provides a system and method for measuring energy conversion efficiency of an inertia friction welding (IFW) process in a non-contact manner. The system includes an IFW machine, a Hall sensor, a data acquisition module, a processing module and a stabilized direct current (DC) power supply. The stabilized DC power supply provides electrical energy for the Hall sensor. The Hall sensor is provided beside a flywheel of the IFW machine, so that the flywheel is within a detection range of the Hall sensor. A magnet is provided on the flywheel. The data acquisition module acquires a Hall electric potential change caused by a relative movement between the magnet and the Hall sensor during the IFW process, and transmits the Hall electric potential change to the processing module to calculate the energy conversion efficiency of the IFW machine.

A method comprises deforming one or more metal foils of a battery between a punch and a die to form bent metal foils. The one or more bent metal foils are disposed in a foil holding fixture with a battery lead disposed next to the one or more bent metal foils such that a bent portion of the one or more bent metal foils are separated from the battery lead by a distance of 0.1 to 2 millimeters. The one or more bent metal foils are impact welded by causing the foils to impact one another or to impact a battery lead at a velocity of speeds of 300 to 900 meters per second.

An assembly to deform metal parts by magnetic pulse includes an induction coil having branches connected to a power supply. The branches extend adjacent to one another to define a slot. An active portion of the coil connected to the first and second branches, an active surface of the active portion being arranged opposite a part to be deformed. The assembly includes an integral mask cooperating in a detachable manner with all or a portion of the coil when the mask is in an operating position on the coil. The mask having a shape that is at least partially complementary to the shape of the coil such that when it is in the operating position, a first portion of the mask is inserted into the slot and a second portion of the mask covers the active surface of the coil. The mask being made of an electrically insulating material.

An assembly to deform metal parts by magnetic pulse includes an induction coil having branches connected to a power supply. The branches extend adjacent to one another to define a slot. An active portion of the coil connected to the first and second branches, an active surface of the active portion being arranged opposite a part to be deformed. The assembly includes an integral mask cooperating in a detachable manner with all or a portion of the coil when the mask is in an operating position on the coil. The mask having a shape that is at least partially complementary to the shape of the coil such that when it is in the operating position, a first portion of the mask is inserted into the slot and a second portion of the mask covers the active surface of the coil. The mask being made of an electrically insulating material.

Method for forming a shield connection of a shielded cable with the steps of pushing a sleeve onto a shield of a cable, inserting the cable with the sleeve into a magnetic pulse welding coil, and energizing the magnetic pulse welding coil with a current pulse in such a way that the sleeve is joined to the shield with a material bond.

Method for forming a shield connection of a shielded cable with the steps of pushing a sleeve onto a shield of a cable, inserting the cable with the sleeve into a magnetic pulse welding coil, and energizing the magnetic pulse welding coil with a current pulse in such a way that the sleeve is joined to the shield with a material bond.

An electrode and a device for resistance spot welding are capable of preventing an occurrence of a surface spatter by using magnetism. The electrode may include a shank and a welding tip mounted to an end of the shank. A magnetic unit is installed on an outer peripheral surface of the shank to form a magnetic field and to form a Lorentz force in a direction of rotation along a circumferential direction of the shank by the magnetic field and a current flowing through the shank.

An electrode and a device for resistance spot welding are capable of preventing an occurrence of a surface spatter by using magnetism. The electrode may include a shank and a welding tip mounted to an end of the shank. A magnetic unit is installed on an outer peripheral surface of the shank to form a magnetic field and to form a Lorentz force in a direction of rotation along a circumferential direction of the shank by the magnetic field and a current flowing through the shank.