Abstract: A metallic resin cover constitutes a portion of an outer wall of a human detection device in which a detection electrode of a capacitance sensor is provided, and which detects whether a human touches or approaches the human detection device. The metallic resin cover includes a covered body; and a metal layer that has a metal-object discretely arranged structure in which a plurality of metal objects are discretely arranged. The metal layer covers an outer surface of the covered body.

Abstract: A panel member for an automobile includes a hem portion roll-fastened in a state of overlapping an outer panel and an inner panel. At the hem portion of the panel member, the outer panel and the inner panel are roll-fastened in a state that a front end face of the outer panel and a front end face of the inner panel are respectively rolled-in by the inner panel and the outer panel.

Abstract: The present invention provides a metallic separator for fuel cells capable of suppressing dropping out of conductive inclusions due to gaps formed at the interface of a base material and the conductive inclusions due to press-forming, thereby decreasing the contact resistance and enhancing the power generation performance, and also provides a method for producing the same.

Abstract: An areal metal element is described having a surface which extends from a first outside edge to a second outside edge lying opposite the first out-side edge. The region of the metal element adjoining the first outside edge forms a first edge region and the region of the metal element adjoining the second outside edge forms a second side region. Both side regions are connected to one another by a central region lying therebetween, with at least one completely bordered aperture being formed at least in one of the side regions, with its border being formed in one part by this side region and in another part by the central region. The central region includes at least two sections which each consist of two outwardly disposed part sections and a central part section lying therebetween. The outwardly disposed part sections are folded over with respect to the central section to produce the aperture.

Abstract: A metal plate for producing a flat tube including a metal body having a joint portion, first and second flat wall forming portions connected by the joint portion, reinforcing wall forming portions projecting from the first and second flat wall forming portions and extending in a longitudinal direction of the first and second flat wall forming portions, and side wall forming portions projecting from opposite side edges of the metal body, respectively. The joint portion has a ridge which makes the joint portion thicker than the first and second flat wall forming portions. The ridge, the reinforcing wall forming portions and the side wall forming portions are projecting in a same direction. The metal body bends into a hairpin shape at boundaries formed between the ridge of the joint portion and the first and second flat wall forming portions.

Abstract: A sheet of material (111) having a plurality of bend-inducing structures (113) configured and positioned to produce bending along a bend line (115). The bend-inducing structures (113) have arcuate return portions (122) extending from opposite ends (121) back along the bend-inducing structures (113) toward the other return portion (122) and each return portion (122) has a length dimension and a radius of curvature reducing stress concentrations. Preferably, the length dimension of the arcuate return portion (122) is in excess of twice the thickness. The lateral distance, LD, to which the bend-inducing structures (113) is formed in the sheet away from the bend line (115) is preferably minimized by small radius arcs (125) which connect the return portions (122) to the remainder of the bend-inducing structures (113).

Abstract: A method for producing a metal profile includes producing a metal component from a semi-finished product or a blank by a hot forming and hardening process and bending the metal component along at least one bending edge. Bending is simplified according to the invention in that, before forming, the metal component is heated along the bending edge in such a way that the strength is reduced in a heated region after heating. The metal profile, produced with this method, has at least one bending edge at which the strength of the metal profile is reduced. In addition the metal profile can be used in a motor vehicle body, in particular as A- and/or B-pillar.

Abstract: An insulator for use with a steam discharge tube of the type having two parallel rows of oppositely facing steam discharge apertures is disclosed. Two elongate channel sections having elongate channel edges are positioned transversely between the two rows and extend longitudinally along the tube on opposite sides of the tube. Sealing and spacing means serves to seal in spaced apart relationship the channel sections from the tube on respective opposite sides of the tube and provision is also made for securing said sections to the tube when in their desired location. The resultant insulator in assembled form reduces unwanted condensation production from the steam discharge orifices and also due to no use or the reduced use of polymers, the generation of unwanted off-gases.

Abstract: An optical device with a CAN package is disclosed, where the cap is resistance-welded to the stem without causing failures due to fragments by the welding flying within the package. The cap of the invention has a flange portion to be welded to the stem. The flange portion provides a ringed groove in addition to the ringed projection for the welding. The fragment due to the welding may be captured in the ringed groove and is prevented from flying within the package. The ringed groove and the ringed projection are simultaneously formed in the stamping to form the body portion of the cap.

Abstract: A stiffened plate obtained by welding one or a plurality of stiffening materials (20) onto the surface of a steel plate (10), the stiffened plate in which a single-bevel or single-J groove (24) is formed in an end (22) of the stiffening material, which contacts the steel plate; and a root portion (26) of the single-bevel or single-J groove is subjected to laser beam welding, and a splay portion (28) to arc welding.

Abstract: There are provided electrode components (1) comprising an open ended tube and a plug and electrodes and electrical apparatus comprising the same. Also provided are methods of forming electrode components.

Abstract: Friction-stir weldments and systems and methods for producing the same are disclosed. In one embodiment, a metal product includes a first metal plate having a first center-neutral axis, a second metal plate comprising a second center-neutral axis, and a friction-stir corner weld that connects the first metal plate to the second metal plate, where the first center-neutral axis of the first metal plate is transverse to the second center-neutral axis of the second metal plate. In another embodiment, a system for producing friction-stir weldments includes a backup anvil having a first supporting face and a second supporting face, where the first supporting face is adapted to receive and support the first metal plate, and where the second supporting face is adapted to receive and support a second metal plate, wherein the center-neutral axis of the first metal plate is transverse to the center-neutral axis of the second metal plate.

Abstract: The present invention relates to a sheet metal component (1), in particular of an exhaust system, having a body (2) comprising at least two shells (3, 4), having at least one pipe (5), wherein at least two shells (3, 4) are joined together along butt edges (8, 9) that are in contact, wherein at least two shells (3, 4) form a tubular connecting area (10) in contact with the pipe (5) on the outside, into which the butt edges (8, 9) of the shells (3, 4) that have been joined together extend, wherein the pipe (5) is joined to these shells (3, 4) by a welded seam (11) which extends along an edge (12) of the shells (3, 4) in the connecting area (10), running around the pipe (5) on the end with regard to the longitudinal direction (13) of the pipe.

Abstract: An aluminum alloy fin material for brazing, characterized by comprising an aluminum alloy comprising more than 1.4% by mass but not more than 1.8% by mass of Fe, 0.8% by mass or more but 1.0% by mass or less of Si, and more than 0.6% by mass but not more than 0.9% by mass of Mn, with the balance being Al and inevitable impurities, wherein 80% or more of the surface area, as viewed from the surface layer of the fin plane, is occupied by recrystallized grains with a length of 10 mm or more, in a direction rolled.

Abstract: At least one plane blank (20) is cut out from a sheet of metal material, the blank comprising a main part having the developed shape of the wall of the structural element and at least one additional overlap and fixing tab (26, 27, 28), the cutout blank (20) is folded along a plurality of lines (23) so as to form the wall of the structural element comprising a plurality of annular segments that are not in axial alignment out of folded portions (22, 24, 24?, 25) of the main part of the cutout blank (20), and welding is used to fix at least one additional overlap and fixing tab (26, 27, 28) on at least one of a folded portion (22, 24, 24?, 25) and a second overlap tab.

Abstract: A novel coating composition is provided for imparting corrosion and wear resistance to metal substrates. The novel coating composition is thermally applied and comprises an aluminum alloy mixed with a hard, inert matrix. The coating composition has found particular use in providing corrosion and wear resistance to metal seat rails used to secure aircrafts seats to the aircraft frame.

Abstract: One aspect of this disclosure relates to a method for forming a transistor. According to various method embodiments, a gate dielectric is formed on a substrate, a substitutable structure is formed on the gate dielectric, and source/drain regions for the transistor are formed. A desired gate material is substituted for the substitutable structure to provide the desired gate material on the gate dielectric. Some embodiments use carbon for the substitutable material, and some embodiments use silicon, germanium or silicon-germanium for the substitutable material. Some embodiments form a high-k gate dielectric, such as may be formed by an atomic layer deposition process, an evaporated deposition process, and a metal oxidation process. Other aspects and embodiments are provided herein.

Abstract: A one-piece safety cleat with a flat base having an upstanding rim surrounding it to form an open shallow cup-structure. The rim has at least one drainage opening. Multiple one-piece safety cleats can be attached to flooring to increase traction on the floor surface.

Abstract: A hollow profile (1) formed of a flat material (31) having a width (d) has at least one groove (6.1, 6.2, 7.1, 7.2) provided on an outer side of at least one of the plurality of walls (2.1, 2.2, 5.1, 5.2) of the profile (1) and having a bottom (8.1, 8.2, 9.1, 9.2) spaced form the outer side by depth (t) and two opposite, substantially flat side walls (13.1, 13.2, 40.1, 40.2) extending substantially perpendicular to the bottom (8.1, 8.2, 9.1, 9.2), with the groove depth (t) of the at least one groove (6.1, 6.2, 7.1, 7.2, 32) amounting to from 0.5 to 2 times of the material thickness (d) of the flat material (31).

Abstract: A process for producing a metallic layer includes forming structures at least in subregions of the metallic layer. The structures have corrugation troughs and corrugation peaks, an upper bearing surface formed at least in part from the peaks, and a lower bearing surface formed at least in part from the troughs. The metallic layer is formed with at least a first region having a first thickness and a second region having a second thickness, different than the first thickness. The structures are formed, in longitudinal direction, independently of the thickness, with at least one of the upper and lower bearing surfaces in the regions being substantially aligned in longitudinal direction in vicinity of at least one of the peaks and the troughs. A metallic layer with regions of varying material thickness and a honeycomb body produced at least partly from such metallic layers, are also provided.

Abstract: In a Y bar for forming coupling elements, an opening angle of a pair of right and left leg parts is narrower than that of the ordinary ones. Plural bent portions, which are bent inward, are formed successively in an extending direction of the leg parts in a range from a crotch part toward pawl parts at front ends of the leg parts. The gap between the pawl parts are narrowed gradually from proximal ends to front ends thereof. Bulging portions are provided on outer side surfaces of the crotch part. Thus, the stabilization of the posture of a metallic coupling element, which is obtained by cutting the Y bar, at the time of mounting, strength of the coupling element and stabilization of the mounting posture of the coupling element to the fastener tape can be improved.

Abstract: A process for forming an initial section or like component featuring a hollow interior to a final shape by high internal pressure in the sealed hollow interior using a medium that can flow. In order to shape-form the initial section featuring at least one corner region—preferably at least two corner regions—the wall sections adjacent to the corner region are preshaped in a curved manner—as viewed in cross-section—counter to the direction of applied pressure, and subsequently re-shaped by applying the high internal pressure of the medium that can flow, displacing the corner region in the direction in which the pressure is applied. To that end a section with hollow space delimited by section walls is employed in which two section walls define each corner region of the section cross-section, whereby at least one of the section walls at the corner region features a region that is curved in cross-section.

Abstract: A trim insert 10 made of metal sheet in which a plurality of core pieces 11 arranged parallel to each other at regular intervals are connected together via bonded portions 12, wherein a deformed linear section 20 is formed in the lengthwise direction a of the core piece. The deformed section is a bent portion 21, a projected portion 22, 23 or a groove portion 24, and is formed all over the surface of the core pieces.

Abstract: There is provided a method for connecting an insulator coated wire with a conductive member while keeping the electrical resistance low and enough joint strength at the joint section therebetween without removing the coating film of the insulator coated wire beforehand. The conductive member has upper and lower pieces which pinch the insulator coated wire, and a gap between the upper and lower pieces varies at different locations. The wire and the conductive member have a good electrical connection at a region of the joint section where the gap between the upper and lower pieces is narrow. In addition, the connection strength of the wire and the conductive member can be enhanced at a region of the joint section where the gap between the upper and lower pieces is wide.

Abstract: A device having an improved thermal barrier coating (46) and a process for manufacturing the same. A support structure (28) for retaining a ceramic insulating material (46) on a substrate (16) is formed by the deposition of a support structure material through a patterned masking material (14). The support structure can define cells into which the ceramic insulating material is deposited following removal of the masking material. The masking material may be patterned by known photolithographic techniques (22,24) or by laser etching (48). The support structure (28) may be a composite metal-ceramic material having either discreet layers (30,34) or a graded composition and may be deposited by an electro-desposition process followed by a heat treatment to form a solid state diffusion bond with the substrate.

Abstract: A stainless steel separator having gas channels including grooves and projections for fuel cells. The separator has a composition including about 0.03 mass percent or less of carbon; about 0.03 mass percent or less of nitrogen, the total content of carbon and nitrogen being about 0.03 mass percent or less; about 16 mass percent to about 45 mass percent chromium; about 0.5 mass percent to about 3.0 mass percent molybdenum; and the balance being iron and incidental impurities. The separator has a contact resistance of about 100 m&OHgr;·cm2 or less. Preferably, the projections have an arithmetic average surface roughness Ra in the range of about 0.01 to about 1.0 &mgr;m and a maximum height Ry in the range of about 0.01 to about 20 &mgr;m. The stainless steel separator preferably further includes about 0.001 to about 0.1 mass percent silver. A fuel cell including this separator exhibits a stable output voltage for a long period of time.

Abstract: A metal foil composite structure used for the construction of clad laminate and printed circuit wiring boards comprises first and second conductive metal foil layers having substantially the same width. Each of the layers has opposite lateral edges. A carrier layer is disposed between the first and second conductive metal layers. The carrier layer has a width less than the width of the first and second conductive metal layers, and forms a margin at each of the lateral edges. The first and second conductive layers are joined to each other only within the margins. Strength provided by the carrier enables thin conducting metal foils to be incorporated in clad laminates. Such foils, which may be as thin as 8-10 &mgr;m, are often too weak to be reliably self-supporting. The provision of a supporting carrier layer enables the thin foils to be handled and bonded to a dielectric substrate in an efficient and economical manner.

Abstract: A method for producing a bent extruded profile that includes extruding a first profile bar having a first lateral formation, extruding a second profile bar having a second lateral formation corresponding in a form-fitting manner to the first lateral formation, and inserting the first lateral formation into the second lateral formation so as to connect the first and second profile bars and to create a form-fitting connection restricting relative movement between the first and second profile bars in all directions except a longitudinal direction of the profile bars. The method also includes bending the connected first and second profile bars using a bending process, wherein after bending, the form-fitting connection restricts relative movement between the first and second profile bars in all directions. In addition, an extruded profile including a first profile bar having a first formation on a first longitudinal side and a second profile bar having a second formation on a second longitudinal side.

Abstract: An improved heat shield offers thermal insulation and reduced noise transmission for vehicular engine components, including exhaust manifolds. The structure has three layers: an outer structural metal layer, a center insulation layer to isolate heat and dampen noise, and an inner metal layer directly adjacent the shielded component for reflecting heat back to the shielded component. As disclosed, the shield has at least one edge portion defined by outwardly flared undulations or waves. The waved edge minimizes impact of plastic deformation of the metal edges during manufacture of the shield, which tends to produce wrinkling at the edges, and creates undesirable stiffness. Finally, the edge boundary of the outer metal heat shield layer is folded over the edges of the insulation and inner metal layers to avoid any sharp edges, thus preventing injury to installers and reinforcing the heat shield structure to enhance useful life under vibration and heat conditions.

Abstract: A sheet metal profile support (10) for automotive construction, such as a cross member, rocker panel, or frame support is disclosed, with a U-shaped, parabolic, or horseshoe-shaped profile cross section (12), in which, in at least one section (14) of the two legs (16, 18) of the profile, a first and second sheet metal layer (20, 22) rest flush against each other as a sheet doubling and in the region of the free ends of the legs (16, 18), the sheet metal layers (20, 22) are connected to each other in one piece by means of a beaded edge (32) that has a hollow chamber (34).

Abstract: A part has a body unit; and one or more leg formed on the body unit. One or more slit is formed on the body unit adjacent to the leg. The legs are inserted to insert holes of a printed wiring board or the like and soldered thereto. Since the slit is formed adjacent to the leg, the heat applied to the leg for the soldering is not radiated by the body unit by virtue of the slit. Therefore, the part can be reliably attached to the printed wiring board or the like.

Abstract: The invention relates to a structural material, in particular suitable for vehicles, such as cars, comprising a laminate of at least a first and a second material layer. According to the invention it is advantageous that the laminate comprises a base layer of a relatively flexible material, such as, for instance, steel or aluminum, which base layer is coated with a supporting layer of relatively brittle material.

Abstract: A method utilized in rolling up materials. In particular, the invention relates to method of rolling corrugated sheets of material. More particularly, the invention relates to a method of rolling pre-formed corrugated sheets of thermoplastic based material. The present invention relates to a method of rolling sheets of thermoplastic material that comprises providing a pre-formed sheet of thermoplastic material, forming a plurality of corrugations on said pre-formed sheet of thermoplastic material; wherein the corrugated shape is made up of inwardly and outwardly extending undulations, rolling the corrugated sheet of thermoplastic material from a first end to a second end; wherein the undulations of a first layer are nestable with the undulations of each subsequent layer of the pre-formed corrugated sheet thermoplastic material.

Abstract: A method of manufacturing a workpiece is provided. The method includes forming a sheet of material having a predetermined shape. A physical marker is then formed on the sheet of material. The physical marker is formed to indicate a position on the sheet of material, where the sheet of material is to be bent.

Abstract: A rigid structural foil and a method for forming a rigid structural foil is provided. The structural foil includes at least two layers of metal sheets, valley areas and spacers. The metal sheet layers include metal foil having a thickness of 0.006 in. The valley areas are disposed between compressed and uncompressed portions of the structural foil formed during compression of portions of the structural foil. In addition to the valley areas, the structural foil includes spacers. The spacers within the metal sheet layers provide spacing between portions of the metal layers such that the structural foil functions as both a heat shield and an acoustic shield.

Abstract: A method for producing a bent extruded profile that includes extruding a first profile bar having a first lateral formation, extruding a second profile bar having a second lateral formation corresponding in a form-fitting manner to the first lateral formation, and inserting the first lateral formation into the second lateral formation so as to connect the first and second profile bars and to create a form-fitting connection restricting relative movement between the first and second profile bars in all directions except a longitudinal direction of the profile bars. The method also includes bending the connected first and second profile bars using a bending process, wherein after bending, the form-fitting connection restricts relative movement between the first and second profile bars in all directions. In addition, an extruded profile including a first profile bar having a first formation on a first longitudinal side and a second profile bar having a second formation on a second longitudinal side.

Abstract: A multilayer engine bearing (10) includes a steel backing (12) having a liner (14) of bearing metal of either copper-lead or aluminum alloys formed on the backing (12). A multilayer overplate (24, 124) is formed on the base lining member (16) and includes at least a first layer (28, 128) electrodeposited from a bath at a first current density to a desired thickness, and at least one additional layer (26, 126) electrodeposited from the same bath but at a different current density and to a desired thickness to yield a composite lamellar overplate structure having layers with differing deposit characteristics, such as hard and soft layers, generated from the same bath at different current densities.

Abstract: This invention relates to a method of forming a substrate with preparing a surface capable of making a cocontinuous bond comprising the steps of 1) obtaining a copper or copper alloy substrate and 2) applying an etching composition which comprises (a) an acid, (b) an oxidizing agent, (c) a copper complexing agent, and (d) a copper complex, wherein the copper complex is present in an amount which precipitates when applied to the copper or copper alloy substrate. The method also includes the step of 3) treating the substrate with a coating composition and/or 4) applying a stripping composition to the substrate. The invention also relates to copper articles, having surface porosity, including multilayer articles such as printed circuit boards and compositions used in the method. The present invention provides microporous copper or copper alloy substrates which have improved adhesion properties to organic material.

Abstract: A sheet metal profile support (10) for automotive construction, such as a cross member, rocker panel, or frame support is disclosed, with a U-shaped, parabolic, or horseshoe-shaped profile cross section (12), in which, in at least one section (14) of the two legs (16, 18) of the profile, a first and second sheet metal layer (20, 22) rest flush against each other as a sheet doubling and in the region of the free ends of the legs (16, 18), the sheet metal layers (20, 22) are connected to each other in one piece by means of a beaded edge (32) that has a hollow chamber (34).

Abstract: A porous structural material having a solid shape with a curved surface of which the dimensional accuracy is high and the uses are wide is produced. The porous structural material is made form metallic chips containing at least one kind of ingredients, and comprises a solid-shaped body having a smooth and curved surface, the solid-shaped body being reformed by compacting a plate-shaped intermediate product in the hot state, the product being a molding with heating under a pressure while being highly electrified.

Abstract: A composite construction panel having a thin panel of concrete material and a reinforcing grid of sheet metal studs with embedment portions which are actually embedded into the concrete panel, each of the studs having a web, right angular flange formed on a free edge of the web, an angled edge strip formed along the free edge of the right angular flange, an embedment angled flange portion formed along the opposite edge of the web, an edge strip formed on the angled flange at an angle thereto; and, spaced apart angled flange openings formed in the angled flange for flow of concrete therethrough. An alternate form of stud has a triangular tube structure along one edge of the web. Another form of stud has a discontinuous webs defining spaces between them. In one embodiment two concrete panels may be secured to the studs in spaced relation to create a hollow structure.

Abstract: A fuel cell corrugated current collector having successive spaced rows of corrugations, with the corrugations in a given row establishing successive peak and valley regions along the given row and the spaced rows of corrugations being adapted so that corresponding peak regions from row-to-row establish through passages for receiving and supporting solid catalyst elements. The spaced rows of corrugations are such that there is a given pitch between successive peak regions. The corrugations in the rows are also such that corresponding peak regions from row-to-row have a finite off-set which is less than 50 percent of the pitch. This establishes a plurality of through passages in the current collector each extending from row-to-row for receiving and supporting the solid catalyst elements. Also, the off-set is based on the catalyst dimensions and is set such that the corrugations engage the catalyst elements.

Abstract: A stainless steel separator having gas channels including grooves and projections for fuel cells. The separator has a composition including about 0.03 mass percent or less of carbon; about 0.03 mass percent or less of nitrogen, the total content of carbon and nitrogen being about 0.03 mass percent or less; about 16 mass percent to about 45 mass percent chromium; about 0.5 mass percent to about 3.0 mass percent molybdenum; and the balance being iron and incidental impurities. The separator has a contact resistance of about 100 m&OHgr;·cm2 or less. Preferably, the projections have an arithmetic average surface roughness Ra in the range of about 0.01 to about 1.0 &mgr;m and a maximum height Ry in the range of about 0.01 to about 20 &mgr;m. The stainless steel separator preferably further includes about 0.001 to about 0.1 mass percent silver. A fuel cell including this separator exhibits a stable output voltage for a long period of time.

Abstract: In a metal foam jointing method for joining preformed bodies, a first preformed body (1) and a second preformed body (1, 2) are located in fixed positions relative to each other. By means of a jointing clamp (10), an encasement of a space (9) is formed in a jointing zone of the preformed bodies (1, 2) in which foamable metal foam material (17) is disposed. The metal foam material is foamed in the encasement, as a result of which the preformed bodies (1, 2) are compacted into a composite body.

Abstract: A V-shaped metal strip has a U-shaped bottom having U-shaped inside and outside surfaces. Only the U-shaped inside surface is formed with a plurality of fold lines extending in a longitudinal direction of the strip and reducing the influence of springback. The fold lines may be arranged in a manner of bilateral symmetry with respect to an imaginary median plane bisecting the V-shaped cross section of the metal strip.

Abstract: A V-shaped metal strip has a U-shaped bottom having U-shaped inside and outside surfaces. Only the U-shaped inside surface is formed with a plurality of fold lines extending in a longitudinal direction of the strip and reducing the influence of springback. The fold lines may be arranged in a manner of bilateral symmetry with respect to an imaginary median plane bisecting the V-shaped cross section of the metal strip.

Abstract: A part has a body unit; and one or more leg formed on the body unit. One or more slit is formed on the body unit adjacent to the leg. The legs are inserted to insert holes of a printed wiring board or the like and soldered thereto. Since the slit is formed adjacent to the leg, the heat applied to the leg for the soldering is not radiated by the body unit by virtue of the slit. Therefore, the part can be reliably attached to the printed wiring board or the like.

Abstract: A V-shaped metal strip has a U-shaped bottom having U-shaped inside and outside surfaces. Only the U-shaped inside surface is formed with a plurality of fold lines extending in a longitudinal direction of the strip and reducing the influence of springback. The fold lines may be arranged in a manner of bilateral symmetry with respect to an imaginary median plane bisecting the V-shaped cross section of the metal strip.

Abstract: A lamella strip intended for further processing into a framework band with a U-shaped or V-shaped cross-section comprises lamellae (2) defined by separating cuts (1) which stand opposite one another in pairs, which lamellae are connected with one another via bridges (4). Each lamella (2) is divided by a center cut (6). Each lamella has two oblong bead-like stamp marks (7), which are arranged on both sides of the center cut (6), and end at a distance (A) from the edges (3) of the lamella strip, forming a smooth end region (8). To produce such a lamella strip, first the separating cuts (1) and center cuts (6) are made in a strip of sheet metal, before the bead-like stamp marks (7) are formed.

Abstract: An aluminum extruded door beam includes an outer flange, an inner flange, and at least one web for connecting the outer flange and the inner flange. The outer corners at the extended ends of the outer flange have a radius R of 2.5 mm or less. The outward corners at the connections between the web and the inner flange and between the web and the outer flange have a radius R of 2 mm to 4 mm. The radius of the outward corners at the connections between the web and the inner flange and between the web and the outer flange is 1.5 to 2 times the width of the web. The length of the extended ends of the outer flange is 1 to 2 times the radius R of the outward corner at the connections between the web and the outer and inner flanges. The aluminum alloy extruded door beam material contains 0.8 to 1.5% by weight (hereinafter the same) of Mg and 4 to 7% of Zn, and the recrystallization surface layer has a thickness of 50 &mgr;m or less.