Abstract: The present invention provides high strength steel plate with excellent low temperature toughness, high strength steel pipe using this as a base metal, and methods of production of the same. The steel plate of the present invention contains Mo: 0.05 to 1.00% and B: 0.0003 to 0.0100%, has a Ceq of 0.30 to 0.53, has a Pcm of 0.10 to 0.20, and has a metal structure which has an area percentage of polygonal ferrite of 20 to 90% and has a balance of a hard phase comprised of one or both of bainite and martensite. To obtain this steel plate, strain-introducing rolling is performed with a start temperature of not more than Ar3+60° C., an end temperature of Ar3 or more, and a reduction ratio of 1.5 or more, then the plate is air-cooled and then acceleratedly cooled from Ar3?100° C. to Ar3?10° C. in temperature by 10° C./s or more.

Abstract: The present invention provides high strength thick welded steel pipe for line pipe superior in low temperature toughness, and a method of production of the same. A base material steel plate containing C: 0.010 to 0.050%, Si: 0.01 to 0.50%, Mn: 0.50 to 2.00%, Al: 0.020% or less, Ti: 0.003 to 0.030%, and Mo: 0.10 to 1.50%, having a carbon equivalent Ceq of 0.30 to 0.53, having a crack susceptability parameter Pcm of 0.10 to 0.20, satisfying formula 3, comprised an area ratio of 20% or less of polygonal ferrite and an area ratio of 80% or more of bainite, and having an effective crystal grain size of 20 ?m or less is formed into a pipe shape, then seam welded to make the effective crystal grain size of the heat affected zone 150 ?m or less: 10C+100Al+5Mo+5Ni<3.3??formula 3.

Abstract: The present disclosure is generally related to providing thin hydrogen separation membranes coated on porous substrates that are useful in membrane steam reformers and methods for making same. These reformers can be integrated with protein exchange membrane (PEM) fuel cells to form power systems.

Abstract: Semi-finished products for the production of devices containing thermoelastic materials with improved reliability and reproducibility are described. The semi-finished products are based on an alloy of Ni—Ti plus elements X and/or Y. The nickel amount is comprised between 40 and 52 atom %, X is comprised between 0.1 and 1 atom %, Y is comprised between 1 and 10 atom % and the balance is titanium. The one or more additional elements X are chosen from Al, Ta, Hf, Si, Ca, Ce, La, Re, Nb, V, W, Y, Zr, Mo, and B. The one or more additional elements Y are chosen from Al, Ag, Au, Co, Cr, Fe, Mn, Mo, Nb, Pd, Pt, Ta and W.

Abstract: The present invention provides high strength welded steel pipe for line pipe inexpensive in cost and superior in low temperature toughness, and a method of production of the same, produced by forming a base material steel plate containing, by mass %, C: 0.010 to 0.050%, Si: 0.01 to 0.50%, Mn: 0.50 to 2.00%, S: 0.0001 to 0.0050%, and Ti: 0.003 to 0.030%, limiting Al to 0.020% or less and Mo to less than 0.10%, having a carbon equivalent Ceq of 0.30 to 0.53 and a crack susceptibility parameter Pcm of 0.10 to 0.20, comprised of polygonal ferrite and residual bainite of an area rate of 20% or less, and having an effective crystal grain size of 20 ?m or less, into a pipe shape, then seam welding it and making the effective crystal grain size of the heat affected zone 150 ?m or less.

Abstract: A flux for use in soldering comprises a primary solids constituent present in an amount greater than about 50 wt. % and one or more secondary constituents that is selected from solvents, thickeners, and/or metal oxide reducing agents. The flux has a temperature profile in which the flux is in a non-flowable inactive state at temperatures at and below a maximum storage temperature that is above about 27° C., a liquid active state at an activation temperature, and a flowable inactive state in a deposition temperature range above the maximum storage temperature and below the activation temperature. A solder material comprises solder particles dispersed in the flux.

Abstract: A seamless, embossed or cast substrate is formed using a seamless sleeve having a seamless surface relief formed thereon and configured to slide over an cylindrical base in an embossing or casting assembly. The substrate is a flat web, foil, or film of, for example, paper, polyester, polypropylene, metal or other elongated flat material. The surface relief can be applied through interfering ablation, non-interfering ablation, ink jet printing, or other techniques wherein a seamless surface relief is formed onto the seamless sleeve. A method of making a seamless, embossed or cast substrate includes expanding a diameter of a seamless sleeve having a seamless surface relief formed thereon, sliding the expanded seamless sleeve onto a cylindrical base, allowing the diameter of the seamless sleeve to contract around the cylindrical base, and conveying a substrate through the embossing or casting assembly and embossing or casting the seamless surface relief into the substrate.

Abstract: If a refractory metal core (RMC) is punched, the punching asymmetry may be reflected in an asymmetry of the cast article features cast by the punched features. The punched features may have a shear zone and a fracture zone. The shear zone of the RMC will cast a relatively narrow portion of the post near one end; whereas the fracture zone will cast a relatively broader portion near the other end. The broader portion will also have a relatively shallow transition to the adjacent face of the slot-like passageway cast by the RMC. Where there is a stress asymmetry in the cast article in-use, the punching direction may be chosen so that the relatively broad portions of the post fall along the relatively higher stress face of the passageway.

Abstract: Techniques generally describe articles of enclosing manufacture and methods related to containers including a magnesium sacrificial anode for corrosion protection. Example articles of enclosing manufacture may include a liner or a rod that is configured as a sacrificial anode to protect a metallic side or end wall of the enclosing manufacture from corrosion. Other embodiments may be disclosed and claimed.

Abstract: A welded assembly includes a weld joint formed via a spin welding process. A disc receives a cylinder prior to spin welding, with the disc having a circumferential groove undercutting or defining an annular shelf. An interlocking feature retaining the cylinder and disc is formed between a flow pattern of the cylinder and the annular shelf upon cooling of molten flash in the groove underneath the annular shelf. Teeth can be formed integrally with the disc to provide a torsional interlocking feature between the disc and cylinder. A method for forming a weld joint between a plastic cylinder and disc includes providing the disc with a circumferential groove forming an annular shelf, and rotating the cylinder with respect to the disc under an axial force to thereby form an outflow of molten flash. The flash forms an interlocking feature when cooled after flowing into the groove underneath the shelf.

Abstract: A high-strength UOE steel pipe which has excellent deformability and excellent low-temperature toughness in its heat affected zone and which is suitable for use in a pipeline installed on permafrost in extremely cold regions or in earthquake-prone regions, for example, is provided. The UOE steel pipe has a steel composition consisting essentially of C: 0.03-0.07%, Si: 0.05-0.50%, Mn: 1.6-2.2%, P: at most 0.020%, S: at most 0.003%, Cu: 0.20-0.60%, Cr: at most 0.10%, Ni: 0.20-0.80%, Nb: 0.005-0.030%, Ti: 0.005-0.030%, N: at most 0.0070%, Al: 0.005-0.060%, and a remainder of Fe and impurities, the hardenability index Pcm is at most 0.22%, Cu+Cr+Ni is 0.4-1.5%, Nb+Mo+V is at most 0.05%. The pipe has a yield strength in the longitudinal direction of at least 480 MPa with a yield-tensile ratio of at most 85% and a Charpy absorbed energy of the heat affected zone at ?40° C. of at least 40 J.

Abstract: The invention relates to a method for producing a corner of a frame-type spacer for insulating glass panels by (a) making a metal hollow profile rod available, which rod has an outer wall, two parallel flanks, and an inner wall, (b) indenting the inner wall and the two flanks in the position of the hollow profile rod where the corner is supposed to be formed, and (c) bending the hollow profile rod by a defined angle.

Abstract: A method of forming metal castings, including positioning a first end of a structural member in a first mold cavity and a second end of the structural member in a second mold cavity. The first and second mold cavities being fluidly coupled to a reservoir of molten metal. Applying a main pressure to the molten metal in the reservoir to force the molten metal into the first mold cavity and the second mold cavity. Then, applying a first auxiliary pressure to the first mold cavity and a second auxiliary pressure to the second mold cavity to densify the casting formed in the first mold cavity and the second mold cavity. Also, a method for casting including maintaining a main pressure at or less than an initial, mold-filling pressure after first and second mold cavities have been filled. Additionally, a method for detecting whether a first mold cavity is sufficiently filled with molten metal by monitoring a moveable element.

Abstract: The present invention provides high strength welded steel pipe for line pipe inexpensive in cost and superior in low temperature toughness, and a method of production of the same, produced by forming a base material steel plate containing, by mass %, C: 0.010 to 0.050%, Si: 0.01 to 0.50%, Mn: 0.50 to 2.00%, S: 0.0001 to 0.0050%, and Ti: 0.003 to 0.030%, limiting Al to 0.020% or less and Mo to less than 0.10%, having a carbon equivalent Ceq of 0.30 to 0.53 and a crack susceptibility parameter Pcm of 0.10 to 0.20, comprised of polygonal ferrite and residual bainite of an area rate of 20% or less, and having an effective crystal grain size of 20 ?m or less, into a pipe shape, then seam welding it and making the effective crystal grain size of the heat affected zone 150 ?m or less.

Abstract: A method for producing a tubular bar, more particularly a stabilizer bar, is provided. The method comprises providing a tubular bar of desired size having an outer and inner surface, heating the bar to an elevated temperature, quenching the bar by application of a cooling fluid to the surfaces of the bar, and forming the tube to a desired shape without annealing. The method further provides for the composition of a high-strength, high formability carbon steel alloy to be used in conjunction with the method. Advantageously, the bar is formable without thermal processing subsequent to quenching. In this fashion, metal tubular bars, such as stabilizer bars, may be formed at reduced cost.

Abstract: A method of roughening metal surfaces of a workpiece such as a cylinder bore of an internal combustion engine to improve the adhesion of layers thermally sprayed thereon. Uniform grooves are formed in the surface and ridges are arranged between the grooves. The grooves may be formed by a process such as turning, drilling, milling or rolling. The ridges are plastically deformed in order to form undercuts in the grooves, with the degree of plastic deformation of the ridges varying regularly in the longitudinal direction of the grooves. Local deformations are produced in the ridge, and these bring about regular undercuts in the groove. This makes it possible to produce the undercuts in identical dimensions with little effort. Furthermore, since the groove is now not completely constricted by undercuts, it can be filled more effectively with spraying material.

Abstract: A high-strength steel sheet having high strength and ability to absorb impact energy to a high degree is formed into a strengthening member for an vehicle, having both superior energy absorption efficiency and bonding properties. The high-strength member has a high-strength steel sheet having not less than 5000 MPa of gradient du/de of a stress-strain diagram in a range of 3 to 7% of true strain obtained in a tension test, and a steel sheet having 0.3 to 0.85 of tension strength ratio against tension strength of the high-strength steel sheet, the steel sheets bonded at their ends with space extending in a prescribed direction between the steel sheets, and a load is to be applied on the member from the prescribed direction when the member is acted upon.

Abstract: A melt-solidified substance includes melt-solidified portions formed by welding, build-up spray welding, metallizing or fusing. The melt-solidified portions have the alloy composition containing Zr: 0.0005 to 0.05 mass %, P: 0.01 to 0.34 mass %, Cu: the remainder and satisfying the relationship between the contents of P and Zr, [P]/[Zr]=0.3 to 20, and the mean grain size in the macrostructure after melt-solidification is 300 ?m or less. If Fe and/or Ni are contained in the melt-solidified portion as inevitable impurities, the content of Fe or Ni is restricted to be 0.3 mass % or less when either Fe or Ni is contained, and the total content of Fe and Ni is restricted to be 0.4 mass % or less when both Fe and Ni are contained.

Abstract: According to one aspect of the present disclosure, a part for an article of equipment includes a fluid conducting first region including a corrosion resistant first material, and a fluid conducting second region including a second material. The first region and the second region are either directly or indirectly joined by solid state welding to form a unitary fluid conducting part. According to another aspect of the present disclosure, a method for replacing at least one fluid conducting part of an article of equipment is disclosed wherein a replacement part is provided that includes a fluid conducting first region including a corrosion resistant first material, and a fluid conducting second region including a second material. The second material is substantially identical to the material of a region of the equipment on which the replacement part is mounted. The first and second regions are either directly or indirectly joined by solid state welding to form a unitary fluid conducting replacement part.

Abstract: An article of manufacture for reducing susceptibility of a metal pipe to metal dusting degradation. The article includes a multi-layer tubing having an alloy layer and a copper layer. The alloy layer can include a Ni based, an Al based and an Fe based alloy layer. In addition, layers of chrome oxide, spinel and aluminum oxide can be used.

Abstract: A steel pipe has a multi-layer coating including: a plating film formed on the surface of the steel pipe; a chemical conversion coating covering the plating film; a primer coating covering the chemical conversion coating and formed from a curable epoxy resin composition composed mainly of an epoxy compound and having an amide or imide bond introduced; and a polyamide resin coating covering the primer coating. The multi-layer coating can significantly enhance the adhesion force of the polyamide coating compared to the conventional pipe.

Abstract: Methods and associated apparatus for semi-continuous casting of hollow ingots are described. In one embodiment a method for the semi-continuous casting of a metallic hollow ingot is provided. The method includes providing a mold comprising a mold center having an inner pipe and an outer pipe arranged to form an annular space for a cooling media and an outer mold, circulating a cooling media in the annular space, feeding a source material to the mold, heating the source material to produce a molten material, moving the mold center progressively downward relative to the outer mold, and solidifying the molten material to form a hollow ingot. Embodiments relating to an apparatus for semi-continuous casting of hollow ingots, and products resulting from the semi-continuous casting of hollow ingots are also described.

Abstract: Devices and methods of welding dissimilar materials are contemplated in which an adaptor is used in an intermediate position between the dissimilar materials. Most preferred adaptors are manufactured by friction stir welding from two dissimilar materials that are identical or similar to the dissimilar materials to be welded together. Therefore, coupling of dissimilar materials in the field via the adaptors is greatly simplified as conventional welding methods can now be employed.

Abstract: The invention relates to an end wall of a metal container having a score therein. The end wall is made of a composite metal sheet made of two or more metal layers, one of the layers being made of an aluminum alloy of high strength (e.g. a high magnesium alloy such as AA5182, AA5042 or AA5082, optionally with increased Mg), and another of the layers being made of an aluminum alloy having a good resistance to stress corrosion cracking (e.g. aluminum alloys AA3004, AA3104, AA5006 or AA5005), wherein at least the bottom of the score is formed by a surface of the alloy of good resistance to stress corrosion cracking.

Abstract: The invention relates to a method for the uniform application of a coating of reactive coating materials, preferably polyurethane components, to tubular walls (20), and also relates to a coating device and a composite tube produced by means thereof. In order to apply a uniform coating thickness, it is proposed according to the invention that the tubular wall (20) is supplied continuously into a coating device (1) in which coating materials are supplied to at least one distributing duct which opens towards the tubular wall (20) and merges in the direction of transport into a coating duct (14), wherein the coating materials flow into the distributing duct (12) without a dead volume and pass from there to the surface of the tubular wall (20) and are held in a tightly restricted space until solidification.

Abstract: An extruded product, in particular a tube, made of alloy composed as follows (% by weight): Si<0.30, Fe:<0.30, Cu<0.05, Mn: 0.5?1.2, Mg 0.5?1.0, Zn<0.20, Cr: 0.10?0.30, Ti<0.05, Zr<0.05, Ni<0.05, others<0.05 each and<0.15 total, the remainder aluminum. The invention is further directed to a manufacturing process for tubes extruded from this composition including the steps of casting a billet, optionally homogenizing this billet, extruding a tube, drawing this tube in one or more passes, and continuously annealing at a temperature ranging between 350 and 500° C. with a rise in temperature of less than 10 seconds. The tubes according to the invention are advantageously used for air-conditioning systems for the passenger compartment of motor vehicles using CO2 as a refrigerating gas.

Abstract: Corrugated tubing (2) having a smooth or semi-smooth bore, and methods for fabricating such tubing are provided. A length of corrugation tubing (2) can be formed with a filler (4) or liner material inside the tubing. The filler material (4) or liner material may yield one or more improved properties such as reducing head (pressure) loss, reducing friction, sound damping, fire resistance, and corrosion resistance. The corrugated tubing with a smooth or semi-smooth bore can be included in a piping system in which a fitting is connected to the tubing.

Abstract: The present invention provides a titanium material having high-temperature oxidation resistance at high temperatures above 800° C. and an exhaust pipe made of this titanium material for an engine. A titanium alloy contains 0.15 to 2% by mass Si, has an Al content below 0.30% by mass, and has equiaxial structure having a mean grain size of 15 ?m or above. The high-temperature oxidation resistance of the titanium alloy at high temperatures above 800° C., such as 850° C., is improved by means including adding Nb, Mo and Cr in combination with Si to the titanium alloy, forming equiaxial structure of coarse grains, creating acicular structure, Si-enrichment of a surface layer of the titanium alloy, and reducing impurities including copper, oxygen and carbon contained in the titanium alloy.

Abstract: The invention relates to can body stock having opposed surfaces. The can body stock has a core layer, a cladding layer at a first surface (intended to form an exterior surface of an eventual container body), and optionally a cladding layer at a second surface (intended to form an interior surface of an eventual container body). The cladding layer at the first surface is made of alloy AA3104 or AA3004 (or a modified version of AA3004 or AA3104 containing more iron and optionally more silicon), and the core layer is an aluminum alloy having yield strength less than that of the aluminum alloy of the cladding layer at the first surface. The can body stock may be used to produce a container body by a method involving drawing and ironing, as well as die necking to reduce the diameter of the open end of the container body.

Abstract: Provided are butt welds and methods of making such butt welds using a combination of fusion root welding and friction stir welding to yield welds with decreased propensity for dropout during friction stir welding without the need for a back-up support plate. In one form of the present disclosure, the butt weld includes: two or more abutting structural steel components beveled on faying surfaces on one side of the components to form a suitably shaped fusion root weld groove and unbeveled on faying surfaces on the opposite side of the components and interconnected with a first fusion root weld on the beveled side of the components and a second friction stir weld on the unbeveled side of the components, wherein the first fusion root weld has a width ranging from 7 mm to 30 mm, a penetration depth ranging from 2 mm to 20 mm, and an overfill ranging from 2 mm to 5 mm, and wherein the stir zone of the second friction stir weld penetrates the first fusion root weld.

Abstract: The invention provides a clad member excellent in strength and brazability and a production method thereof. A clad member comprises a core material, an outer skin layer provided on one surface of the core material, and an inner skin layer provide on the other surface thereof via an intermediate layer. The core material is made of an aluminum alloy comprising Mn: 0.8 to 2 mass %, Mg: 0.2 to 1.5 mass %, and the balance being Al and impurities. The outer skin layer is made of an aluminum alloy comprising Zn: 0.01 to 4 mass %, and the balance being Al and impurities. The intermediate layer is made of an aluminum alloy comprising Mn: 0.8 to 2 mass %, Zn: 0.35 to 3 mass %, and the balance being Al and impurities. The inner skin layer is made of an Al—Si series brazing material.

Abstract: It is a technical common knowledge that a chaplet used in casting of a hollow casting is fusion-bonded with the melt and is incorporated into the casting. However, the adhesion between the chaplet and the casting body is not necessarily satisfactory, thereby incurring the strength reduction of a thin-wall hollow casting. A core for a thin-wall hollow casting according to the present invention is provided with a chaplet mounted thereon. The chaplet has arcuate portion 2 with a gap 5 and a plurality of projections 4 from an outer peripheral of the arcuate portion and is in contact with an inner wall 7 of a mold. The entire arcuate portion of the chaplet is included in a groove 6 formed around an outer peripheral portion of the core body. Only the projections 4 of the chaplet protrude from the core body, when the chaplet is inserted in the groove.

Abstract: A method for casting medium carbon, B/Ti steel product using compact strip processing or thin slab casting. The method can include providing a steel composition including boron and titanium and casting the steel composition into a slab having a thickness between about 25 and 150 mm. The slab can have a cast composition including about 0.23 to 0.30 wt. % carbon, about 0.0010 to 0.0050 wt. % boron, about 0.010 to 0.050 wt. % titanium, about 1.15 to 1.50 wt. % manganese, less than 0.35 wt. % silicon and a Ti/N ratio greater than 2.9. The amount of each element is provided based upon the total weight of the steel composition. The steel slab can be free from cracks and significant defects. Furthermore, the steel slab can be used for electric resistance welded (ERW) products.

Abstract: UOE steel pipe which has a tensile strength of at least 900 MPa, which does not develop delayed hydrogen cracking of a weld or fracture of the weld during pipe expansion, and which has a weld and a heat affected zone having excellent toughness is provided. The tensile strength of a weld formed on a base metal having a tensile strength of at least 900 MPa is adjusted to be in the range of 95-110% of the tensile strength of the base metal, the oxygen content of the weld metal in the weld is made at most 0.035 mass %, and the weld is preheated to the range of 75-250° C. before carrying out welding from the outer side.

Abstract: The invention relates to a method for forming a steel container having a curled open end, comprising the steps of i) providing a steel cup; ii) deep drawing the steel cup into a drawn container preform; iii) thin drawing the body of the drawn container preform; and iv) curling an open end of the drawn container preform by forming a precurl and by curling the precurl into an elongated curl, to an apparatus for forming a steel container, and to such steel container and its preform.

Abstract: A high-strength steel pipe having a tensile strength of 800 MPa or more that includes a weld metal having high cold-cracking resistance and high low-temperature toughness is provided. The high-strength steel pipe is a high-strength welded steel pipe in which the welded steel pipe is manufactured by double one layer submerged arc welding performed on an internal surface and an external surface of a base metal, both the base metal of the welded steel pipe and a weld metal have a tensile strength of 800 MPa or more, the weld metal contains C: 0.04% to 0.09% by mass, Si: 0.32% to 0.50% by mass, Mn: 1.4% to 2.0% by mass, Cu: less than 0.5% by mass, Ni: more than 0.9% by mass but not more than 4.2% by mass, Mo: 0.4% to 1.5% by mass, Cr: less than 0.5% by mass, V: less than 0.2% by mass, and the remainder of Fe and incidental impurities, and CS values calculated from the weld metal components using the equation CS=5.1+1.4[Mo]?[Ni]?0.6[Mn]?36.

Abstract: A reinforced pipe weld seam is provided wherein raised members are located a distance from each side of the weld seam. The weld seam and raised members are covered by a generally longitudinally aligned layer of fibers. In a preferred embodiment, the longitudinally aligned layer of fibers is covered by a layer of circumferentially aligned layers of fibers.

Abstract: The invention provides a steel pipe excellent in deformation characteristics, most notably a steel pipe for expandable-pipe oil well and a low-yield-ratio line pipe, and a method of producing the same without conducting water cooling requiring large-scale heat treatment equipment, namely a method of producing a steel pipe excellent in deformation characteristics whose microstructure is a two-phase structure including a martensite-austenite constituent at an area fraction of 2 to 10% and a soft phase, which method comprises: heating at Ac1+10° C. to Ac1+60° C. and thereafter cooling a precursor steel pipe which contains, in mass %, C: 0.04 to 0.10% and Mn: 1.00 to 2.50%, is limited to Si: 0.80% or less, P: 0.03% or less, S: 0.01% or less, Al: 0.10% or less and N: 0.01% or less, further contains one or more of Ni: 1.00% or less, Mo: 0.60% or less, Cr: 1.00% or less and Cu: 1.00% or less, where content of Mn and content of one or more of Cr, Ni, Mo and Cu satisfy Mn+Cr+Ni+2Mo+Cu?2.

Abstract: The present invention provides a method of production of electric resistance welded steel pipe able to stably reduce weld defects due to oxides by firing plasma and furthermore able to reduce plasma jet noise and comprises shaping steel plate 1 into a tube and electric resistance welding the abutting end faces 4 during which blowing on at least the abutting end faces 4a in the region 6 at the welding upstream side from the weld point 9 where the temperature becomes 650° C. or more a reducing high temperature (pseudo) laminar plasma obtained by applying voltage to a reducing gas containing H2 gas: 2 to 50 vol % to which is added a balance of Ar gas alone or a mixed gas of Ar gas to which N2 gas, He gas, or both are added. At that time, it is preferable to make the applied voltage over 120V and the make the plasma blowing conditions satisfy the following formula (1).

Abstract: A reinforced member which is made from a steel product having a strain aging characteristic and has a closed section at a cross section perpendicular to an axis of the reinforced member. The reinforced member includes a reinforced area which is produced by press-forming the steel product so as to generate a compression strain in the press-formed steel product due to the application of a compression stress to the steel product along the direction from a surface of the steel product to an inside of the steel product, and by giving a strain aging treatment to the press-formed member.

Abstract: A strength member for an automobile body such as a side member or a pillar which has a bent portion which is bent two-dimensionally or three-dimensionally and which has an ultrahigh strength with a tensile strength exceeding 1100 MPa is provided. The strength member for an automobile body has a tubular body which has a closed cross section which does not have an outwardly-extending flange and which has a bent portion which is bent two-dimensionally or three-dimensionally, a portion to be cut or punched, and a portion to be welded.

Abstract: An overlay for repairing spline and seal teeth of a mated component is disclosed. The overlay is a tube constructed of a weld repair material, the tube having an outer surface and an inner surface. The inner surface is dimensioned to define an aperture sized to receive a plurality of radially spaced splines of the component, the splines of the component arranged to matingly engage a complementary component.

Abstract: In order to produce industrially advantageously an electroformed copper/niobium composite piping material wherein an electroformed copper layer and a niobium thin piping material are strongly bonded to each other, the electroformed copper/niobium composite piping material can be produced by coating any one or each of the outer peripheral surface and the inner peripheral surface of a niobium thin piping material with a nickel thin film, coating the surface of the nickel thin film with copper by electroforming, and subsequently annealing the resultant.

Abstract: Process for manufacturing seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders comprising the following steps; —(i) providing a steel having a composition comprising 0.06-0.15% by weight of carbon, 0.30-2.5% by weight of Mn, and 0.10-0.

Abstract: A hollow structure, and a method of forming the hollow structure, where the hollow structure includes first and second metal parts, the second metal part having an interior surface and a tapered support member extending from the interior surface. The hollow structure also includes a friction stir welded joint that extends through the first metal part and into the tapered support member.

Abstract: A frictionally press-bonded member includes a steel pipe, and a stab. The steel pipe has opposite ends. The stab is frictionally press-bonded to at least one of the opposite ends of the steel pipe. The steel pipe is subjected to a normalizing treatment before being frictionally press-bonded to the stab.

Abstract: We describe a lattice part made of metal and a method for producing a lattice part made of metal or a metal alloy. The lattice has a thickness of less than 1 mm at a size of the gaps of less than 50 mm2. The lattice comprises a connection made of knots, and perpendicular to the lattice surface has lattice bars and lattice knots of the same thickness. A method for the production of a lattice part made of metal, particularly made of light alloy, is characterized by a primary shaping process according to DIN 8580, wherein a mold is formed in the first step, a primary material is introduced in the mold cavity in the second step, the part is removed from the mold in the third step, and the finishing of the metallic lattice part is carried out in the fourth step.

Abstract: The invention relates to a friction welding method for the production of a metal bonded joint, wherein two connection parts having contact surfaces are brought into contact with friction pressure. One of the connection parts is moved with respect to the other connection part and, after a time period of friction, the movement is stopped. During a time period of compression, the connection parts are pressed against each other with a compression pressure which is greater than the friction pressure. At least one of the connection parts is constructed of cast iron with nodular graphite (=GJS).

Abstract: A honeycomb body for an exhaust treatment unit has at least one honeycomb structure and a least one housing, which at least partially surrounds the at least one honeycomb structure. At least one region between the honeycomb structure and the housing is formed with a brazed joint and at least two separate measures delimit the brazed joint. Furthermore, a method for producing a corresponding honeycomb is also proposed.

Abstract: The invention provides a friction-welded part featuring easy design as well as a method of producing said part. The friction-welded part 1 is produced by friction-welding a first member 10 and a second member 20 together. The first member 10 is made of an aluminum alloy material, having a uniform cross-section portion 11 whose cross-sectional shape and size are not changed. The second member 20 is made of an aluminum alloy material, having a uniform cross-section portion 21 whose cross-sectional shape and size are not changed. According to the invention, the uniform cross-section portions 11 and 21 are friction-welded together to form the part 1. A heat affected zone “H” caused by friction welding is formed only in the uniform cross-section portions 11 and 21. The uniform cross-section portion 11 of the first member 10, and the uniform cross-section portion 21 of the second member 20, respectively, have a cylindrical shape, preferably having the same sectional dimension.