A folding metal back plate includes a first plate portion, a second plate portion, and a folding plate portion connected to the first plate portion and the second plate portion. The folding plate portion has two first folding areas respectively disposed close to the first plate portion and the second plate portion, and a second folding area formed between the two first folding areas. The first folding area has multiple rows of spaced first openings. The second folding area has multiple rows of spaced second openings. Each first folding area constitutes a first unfolding length. The second folding area constitutes a second unfolding length. The first unfolding length of the first folding area is 0.2 to 0.5 times the second unfolding length of the second folding area.

A peening method which can sufficiently improve fatigue properties of a lap fillet welded joint having a thin steel sheet as a base sheet, in which a knocking pin having a predetermined shape is continuously knocked as a series of knocking toward a direction inclined relative to the welding direction, the series of knocking is repeatedly performed in the welding direction, at that time, a knocking mark group made of a plurality of knocking marks formed by the series of knocking is superimposed on at least a part of an adjacent knocking mark group while an end part in the direction orthogonal to the welding direction of the knocking mark group is separated from an end part in the direction orthogonal to the welding direction of the adjacent knocking mark group.

Described is a micro-lattice damping material and a method for repeatable energy absorption. The micro-lattice damping material is a cellular material formed of a three-dimensional interconnected network of hollow tubes. This material is operable to provide high damping, specifically acoustic, vibration or shock damping, by utilizing the energy absorption mechanism of hollow tube buckling, which is rendered repeatable by the micro-lattice architecture.

A B-pillar is shaped from a sheet blank (20,21) into a hat profile with a central flange (12), two sides (13,14) and two side flanges (15,16), and it has, over a portion of its length, a reinforcing sheet (21) that make the B-pillar have double sheets. The reinforcing sheet (21) extends out over the side flanges (15,16) over at least ¼ of its length and narrows down at both its ends so that it does not extend out over the side flanges over part of its length.

A process of fabricating a shield, a process of preparing a component, and an erosion shield are disclosed. The process of fabricating the shield includes forming a near-net shape shield. The near-net shape shield includes a nickel-based layer and an erosion-resistant alloy layer. The nickel-based layer is configured to facilitate secure attachment of the near-net shaped to a component. The process of preparing the component includes securing a near-net shape shield to a substrate of a component.

A wiring board and a method for manufacturing the wiring board in which an initial Cu plated layer is formed by plating so as to cover the surface of a metallized layer and then the initial Cu plated layer is heated to be softened or melted. Copper in the softened or melted initial Cu plated layer enters into open pore portions of the metallized layer. In addition, during the heating, components of the metallized layer and components of the initial Cu plated layer are mutually thermally diffused. Consequently, when solidified later (that is, when the initial Cu plated layer becomes a lower Cu plated layer), the adhesiveness between the metallized layer and the lower Cu plated layer is improved due to, for example, an anchoring effect and a mutual thermal diffusion effect.

A highly-ordered nano-structure array, formed on a substrate, mainly comprises a plurality of highly-ordered nano-structure units. Each of the highly-ordered nano-structure units forms a receiving compartment. One end of the receiving compartment opposite to the substrate has an opening. Each of the highly-ordered nano-structure units comprises at least one thin film layer. A periphery and a bottom of the receiving compartment are defined by an inner surface of a surrounding portion of the at least one thin film layer and a top surface of a bottom portion of the at least one thin film layer, respectively. The at least one thin film layer is made of at least one material selected from the group consisting of: metal, alloy, oxide, nitride, and sulfide.

A part assembly (100), comprising: an aluminium part (101); a magnesium part (102), the magnesium part (102) coated in a first coating (104); a bond (103), the bond (103) securing the aluminium part (101) to the coated magnesium part (114); wherein the aluminium part (101), the coated magnesium part (114) and the bond (103) are subjected to an electrophoresis coating process to coat the aluminium part (101) in a second coating (105). By subjecting the aluminium part (101), the coated magnesium part (114) and the bond (103) to an electrophoresis coating process to coat the aluminium part (101) in a second coating (105) this may provide a simpler manufacturing process.

A folding metal back plate includes a first plate portion, a second plate portion, and a folding plate portion connected to the first plate portion and the second plate portion. The folding plate portion has two first folding areas respectively disposed close to the first plate portion and the second plate portion, and a second folding area formed between the two first folding areas. The first folding area has multiple rows of spaced first openings. The second folding area has multiple rows of spaced second openings. Each first folding area constitutes a first unfolding length. The second folding area constitutes a second unfolding length. The first unfolding length of the first folding area is 0.2 to 0.5 times the second unfolding length of the second folding area.

A joint structure includes: a first same-type metal member; a second same-type metal member that can be mutually welded with the first same-type metal member; and a different-type member that has a penetrating portion, is interposed between the first same-type metal member and the second same-type metal member. In the plate thickness direction of an emission region in which a laser beam is emitted toward the penetrating portion, the plate thickness at the emission region of the first same-type metal member positioned on the side on which the laser beam is emitted is a predetermined thickness corresponding to a first gap. The first same-type metal member and the second same-type metal member are fused and bonded together via the penetrating portion, and the different-type member is compressed and fixed, such that the different-type member is fixed to the first same-type metal member and the second same-type metal member.