The invention relates to a method for repairing a damaged blade tip of a turbine blade which is armor-plated and provided with a blade coating, of a thermal gas turbine. The method according to the invention comprises the steps of removing a blade tip armor plating of the turbine blade at least in the region of the damaged blade tip and producing a repair surface (12), removing only a part of the blade coating of the turbine blade in the region of the repair surface while preserving a part of the blade coating separated from the repair surface (14), restoring the blade tip reinforcement (20), and restoring the blade coating in the region of the repaired blade tip (22). The invention furthermore relates to a device for carrying out such a method.

A vehicle door beam and related methods of making door beams include a flat-rolled aluminum alloy sheet, where two edges of the sheet that are transverse to the roll direction of the sheet are brought together to form a tube. The two edges are friction stir welded together to form a butt joint along a length of the tube. The tube is arranged, along with other optional components, as a side-impact door beam in a vehicle door, such that the butt joint is facing away from an expected impact direction of the vehicle door.

The present invention relates to a weld bead inspection device that inspects welding quality by measuring the state of beads formed at a welding part of a metallic or non-metallic pipe, or the like, and more specifically, to a weld bead inspection device that more efficiently inspects a welding part joined by a method such as thermal fusion for connection between pipes or connection between a pipe and a fitting. The weld bead inspection device includes a housing unit that forms an appearance; an imaging unit that images shapes of the weld beads in an inner space that is open downward from a middle inner side of the housing unit; a control unit that is provided in the housing unit to store image data captured by the imaging unit or to calculate external shapes of the weld beads for determining welding quality on the basis of the image data.

Tube forming methods can be used for efficient transition in the production of tubes having varying thickness. Material used to form consecutive tubes may have the same thickness along a separation plane separating a first discrete section from a second discrete section of the material, and the first discrete section and the second discrete section may each have varying thickness in a feed direction of the material. With such a thickness profile, the first discrete section of the material may be formed into a first cylinder having varying thickness and separated from the second discrete portion as the second discrete section is formed into a second cylinder having varying thickness. In particular, the transition between the first cylinder and the second cylinder may be achieved without scrap and/or interruption, resulting in cost-savings and improvements in production throughput associated with forming tubes having varying thickness.

The present invention relates to steel used for a sash component and the like of a vehicle and, more specifically, to a hot-rolled steel sheet for a high-strength electric resistance welded steel pipe having excellent expandability and a method for manufacturing same, the hot-rolled steel sheet having a smaller decrease in the strength of a welding heat-affected zone (HAZ) formed during electric resistance welding, in comparison with a base material.

Methods are provided for joint performance validation and include preparing a coupon from a blank by bending the blank to have a pair of legs disposed at substantially ninety degrees relative to each other. Another coupon is prepared by forming an opening in a segment of another blank and bending the segment approximately ninety degrees. The segment is disposed adjacent an end of the second blank. A test sample is prepared by joining the coupons together at a joint with a leg attached to the segment approximately at a center of the leg. The test sample is subjected to a force test to generate data for the performance validation.

Methods are provided for joint performance validation and include preparing a coupon from a blank by bending the blank to have a pair of legs disposed at substantially ninety degrees relative to each other. Another coupon is prepared by forming an opening in a segment of another blank and bending the segment approximately ninety degrees. The segment is disposed adjacent an end of the second blank. A test sample is prepared by joining the coupons together at a joint with a leg attached to the segment approximately at a center of the leg. The test sample is subjected to a force test to generate data for the performance validation.

A laminate structure and method of forming is provided. The laminate structure includes a first metal sheet having a first thickness, a second metal sheet having a second thickness, and an adhesive core having an adhesive thickness. The adhesive core is disposed between and bonded to the first and second metal sheets. The first and second metal sheets are made of an aluminum based material and the adhesive core is made of an adhesive material also described as a viscoelastic adhesive material. The laminate structure is configured such that a ratio of the sum of the first and second thickness to the adhesive thickness is greater than either to one (8:1). The laminate structure including the viscoelastic adhesive core is characterized by a composite loss factor at 1,000 Hertz which is continuously greater than 0.1 within a temperature range of 25 degrees Celsius to 50 degrees Celsius.

A process is provided for welding an assembly of a first tubular component and a second tubular component, the first and second tubular components having first and second cylindrical portions, respectively. The process uses a pressing jig, a pressing tool, a welding jig and a welding head. The process includes: positioning the first tubular component with respect to the pressing jig; clamping the first tubular component against the pressing jig; freely fitting the second cylindrical portion into the first cylindrical portion, the two cylindrical portions being substantially coaxial; placing the second component with respect to the first cylindrical portion and the pressing jig; tightening the second tubular component against the pressing jig; aligning the two fitted cylindrical portions with the pressing tool; and pressing by plastic deformation the first and second cylindrical portions. The first and second pressed tubular components form a rigid assembly, with the two fitted and pressed cylindrical portions defining a fitting and a joint. Additional steps include: positioning the rigid assembly with respect to the welding jig; clamping the rigid assembly against the welding jig; and welding by positioning and orienting the welding head repeatably with respect to the fitting and the joint, where the rigid assembly is positioned with respect to the welding jig along one or more surfaces belonging exclusively to the first component in the pressed state.

Discussed is a battery module, including at least one battery cell, a pair of pressing plates respectively disposed at opposite side surfaces of the at least one battery cell, and a module cover coupled to the pair of pressing plates to cover an upper side or a lower side of the at least one battery cell, wherein opposite ends of the module cover overlap an upper end or a lower end of the pair of pressing plates, and have a plurality of welding portions and a plurality of auxiliary welding beads alternately arranged along a longitudinal direction of the module cover, and wherein the opposite ends of the module cover are welded to the pair of pressing plates at the plurality of welding portions.