Methods of making an implantable pulse generator are disclosed herein. The implantable pulse generator can include a body defining an internal volume and a plurality of wires extending from out of the internal volume of the body. Some of these wires can be connected, either directly or indirectly to a lead via a welded joint. The welded joint can be created by first resistance welding and then laser welding some of the wires to a connector.

A pressure sensor (1) is specified, comprising a housing (2), a membrane (3), which forms with the housing (2) a chamber (4) closed off toward the outside, and a filling opening (6) for filling the chamber (4) with a fluid medium (5). The filling opening (6) is closed by means of a soldering or welding closure (7, 8). Furthermore, a method for producing a pressure sensor (1) is specified, wherein a housing (2), which together with a membrane (3) forms a chamber (4), is provided, the chamber (4) is filled with a fluid medium (5) through a filling opening (6), and the filling opening (6) is subsequently closed by means of soldering or welding.

A secondary battery has an electrode laminated body and a collector member. The laminated body is formed of a laminated electrode sheet. The collector member is bonded to a collector foil laminated portion of the electrode sheet not formed with an active material layer. The collector foil laminated portion and the collector member are bonded at overlapped portions by resistance welding using electrodes. When a pressure welding direction is a projection direction, an area ratio (Yd)/(Xd) is 1.2-4, in which Xd is a projection area of a surface of the electrode made contact with the collector foil laminated portion and Yd is a projection area of a surface of the electrode made contact with the collector member.

A welding apparatus for a controlled welding of steel cord ends. The welding apparatus allows for a controlled welding path from welding period over post-weld period to complete cool-down. In the welding apparatus a direct current source is controlled over time using a programmable controller. By sensing the voltage over the clamps of the welding apparatus and using this as a further input to the programmable controller, a constant power dissipation between the clamps can be achieved in the post-weld period. An associated method for making the weld where during the post-welding period the electric power dissipated between the clamps is held constant. The welds obtained by this procedure have a favourable metallographic structure in that the heat affected zone has more than 50% of pearlite and/or bainite over the total area of that zone.

Various embodiments relate to a band flash butt welding machine by which it is possible to weld band faces of band ends of at least one band, in particular a saw band, to each other. The band flash butt welding machine comprises clamping elements for clamping the band ends. Furthermore, the band flash butt welding machine comprises aligning elements for aligning the band ends. The second clamping elements can be moved by a drive relative to the first clamping elements in the direction of a longitudinal axis. Two aligning elements are fixedly connected to one another by a coupling device, in particular a bridge part. The coupling device defines the relative alignment of the aligning elements. The second clamping element can be moved relative to the two aligning elements. This design is advantageous for a changeover of the band flash butt welding machine for band ends having a different geometry.

An airfoil component for attaching to a cropped airfoil is provided. The cropped airfoil comprises a cropped airfoil attachment section and a cropped first side opposite a cropped second side, which each extend axially between a cropped first edge and a cropped second edge to define a cropped chord length. The airfoil component comprises a body having a component first side opposite a component second side. The body defines an attachment section for attaching the airfoil component to the cropped airfoil at the cropped airfoil attachment section. The attachment section extends axially between a component first edge and a component second edge to define a component chord length, and the attachment section is oversized with respect to the cropped airfoil attachment section such that the component chord length is longer than the cropped chord length. Systems and methods also are provided.

Provided is a resistance spot welding method by which a desired nugget diameter can be stably obtained without expulsion even when the effect of a disturbance is significant. An electrode force F.sub.A of a main current passage after an intermediate welding time T.sub.a is set based on an average value or time integration value R.sub.A of a resistance between electrodes from the start of main current passage to the intermediate welding time T.sub.a.

An airfoil component for attaching to a cropped airfoil is provided. The cropped airfoil comprises a cropped airfoil attachment section and a cropped first side opposite a cropped second side, which each extend axially between a cropped first edge and a cropped second edge to define a cropped chord length. The airfoil component comprises a body having a component first side opposite a component second side. The body defines an attachment section for attaching the airfoil component to the cropped airfoil at the cropped airfoil attachment section. The attachment section extends axially between a component first edge and a component second edge to define a component chord length, and the attachment section is oversized with respect to the cropped airfoil attachment section such that the component chord length is longer than the cropped chord length. Systems and methods also are provided.

Provided is a spot welding method capable of reliably welding a metal sheet laminate while suppressing occurrence of expulsion. In the spot welding method, a pulse current is applied in a first current application step and a second current application step by a DC chopping control method. In the DC chopping control method, a pulse waveform of the pulse current is generated by switching between current application and current application stop to a pair of electrodes 12 and 22 by a current switch 28, a peak current value of the pulse current in the first current application step is set to a value A1 equal to that of the pulse current in the second current application step, and a power of the pulse current in the first current application step is set to a value larger than that of the pulse current in the second current application step.

Provided is a spot welding method capable of performing current control that makes a rising slope of waveform constant even in a case where pulse-shaped waveforms overlap with each other. The spot welding method includes, for a welding current L10: setting a target rise current value P for each predetermined PWM pulse when the welding current L10 increases toward a peak current range R1; and setting, as a first target current value A, a target rise current value P that is larger than and the closest to a rise start current value S in a case where an effective value L14 of the welding current reaches a set welding current L23 while the welding current is decreasing toward a bottom current PB.