Abstract: A method for the production of swaged aluminum alloy parts, by production of a 0.5 mm-5 mm thick alloy strip made of 1-6 wt. % Mg, <1.2 wt. % Mn, <1 wt. % Cu, <1 wt. % Zn, <3 wt. % Si, <2 wt. % Fe, <0.4 wt. % Cr, Zr<0.3, other elements <0.1 each, total of <0.5, the remainder being Al, cutting a blank from the strip, locally or totally heating the blank at a temperature of 150-350° C. for <30 secs, and swaging the heated blank with the aid of heated tools, at least partially, at a temperature of 150-350° C. in the presence of a lubricant which is compatible with later operations. The swaged parts are automotive body work parts.

Abstract: Auto body roof comprising at least one steel part and a skin part made of aluminum alloy that is attached to the steel part before painting. The aluminum part comprises a sheet of the following composition: Si: 0.7-1.3, Fe<0.5, Cu: 0.5-1.1, Mn: 0.4-1.0, Mg: 0.6-1.2, Zn<0.7, Cr 0.25, Zr+Ti 0.20, other elements <0.05 each and <0.15 total, and the remainder aluminum. The aluminum part, after solution treatment, quenching and age-hardening for three weeks at room temperature, possesses a yield strength R0.2 of less than 170 MPa, and preferably 160 MPa.

Abstract: The subject of the invention is an extruded product, of the bar or rod or tube type, with very good precision-turning properties, made of a wrought precision-turning aluminium alloy of the following composition: 0.8?Si<1.5%, optionally 1.0<Si?1.5%, 1.0<Fe?1.8%, optionally 1.0<Fe?1.5%; Cu: <0.1%; Mn: <1%, optionally <0.6%; Mg: 0.6-1.2%, optionally 0.6-0.9%; Ni: <3.0%, optionally 1.0-20.%; Cr: <0.25%; Ti: <0.1%; other elements <0.05% each and 0.15% in total; and the balance aluminium. The subject of the invention is also a precision-turning part obtained from the extruded product as defined above.

Abstract: The invention relates to a method of determining routes between a point of departure (?) and a point of arrival (?) for a digital road mapping system comprising a set of segments that are representative of a road network. The inventive method comprises the following steps consisting in: receiving a route request containing the points of departure and arrival and the selected, preferred sinuosity level; identifying a plurality of potential routes; assigning a value to each of the potential routes as a function of the global sinuosity index thereof, which is established from the sinuosity index of each of the segments forming the potential routes; and selecting the potential route with the sinuosity index that best corresponds to the sinuosity level of the request.

Abstract: A method of establishing neighboring points for a digital road network system stored on a storage medium and comprising a plurality of segments and indications of the position of these segments, in which, in order to link a given neighboring point with a given intersection: (a) the class of said intersection (CC) is established; (b) it is verified whether the class (CC) of this intersection is greater than a given intersection recognition threshold (SPCC); (c) an identification is made of the selectable surrounding neighboring points (PV), which are located within a given radius of the intersection and which have a range or threshold of the minimum required value (SPV); (d) the PV closest to the intersection is selected and a link is created between the data corresponding to said intersection and those of said neighboring point (PV).

Abstract: A method for determining routes for a digital road network system on the basis of a main route connecting a starting point to a finishing point. The method makes it possible to reach a point of interest (POI) reachable by a plurality of secondary routes intersecting the main route. An optimal POI overall route is determined by performing the following steps. First, a POI overall route is evaluated for each of the potential secondary routes on the basis of at least the following route elements: (1) a useful portion of a main route and a corresponding score, the score being assigned a factor “k” lying between 0.1 and 0.7, and (2) the chosen secondary route and a corresponding score. Then, the POI overall route whose resulting score is optimal is chosen.

Abstract: A route calculation method allowing an optimized route to be drawn up by means of a calculator between a point ? and a point ?, consisting in using digitized data from at least a first and a second source, and consisting of (i) determining a plurality of alpha nodes (N?), referenced in both the first and the second sources, and determining a first optimization value for each of the nodes; (ii) determining a plurality of beta nodes (N?), referenced in both the third and the second sources, and determining a first optimization value for each of the nodes; (iii) determining, for all the pairs of nodes N? and N?, a second optimization value for each of the pairs of nodes (N?, N?); (iv) determining, for the set of alpha-beta route, the optimum nodes between the points alpha and beta. The invention also relates to a device allowing implementation of the present method.

Abstract: A method for the production of swaged aluminum alloy parts, by production of a 0.5 mm-5 mm thick alloy strip made of 1-6 wt. % Mg, <1.2 wt. % Mn, <1 wt. % Cu, <1 wt. % Zn, <3 wt. % Si, <2 wt. % Fe, <0.4 wt. % Cr, Zr<0.3, other elements <0.1 each, total of <0.5, the remainder being Al, cutting a blank from the strip, locally or totally heating the blank at a temperature of 150-350° C. for <30 secs, and swaging the heated blank with the aid of heated tools, at least partially, at a temperature of 150-350° C. in the presence of a lubricant which is compatible with later operations. The swaged parts are automotive body work parts.

Abstract: Rolled or extruded products for welded constructions made of AlMgMn type aluminum alloy. These products contain, in % by weight, 3.0<Mg<5.0, 0.75<Mn<1.0, Fe<0.25, Si<0.25, 0.02<Zn<0.40, optionally one or more of the elements Cr, Cu, Ti, Zr such that Cr<0.25, Cu<0.20, Ti<0.20, Zr<0.20, other elements <0.05 each and <0.15 in total, wherein Mn+2Zn>0.75. In the welded state, these products have improved mechanical strength and resistance to fatigue without unfavorable consequences with regard to toughness and corrosion resistance, and are particularly suitable for naval construction, for industrial vehicles and for bicycle frames made of welded tubes.

Abstract: Rolled or extruded products for welded constructions made of AlMgMn type aluminum alloy. These products contain, in % by weight, 3.0<Mg<5.0, 0.75<Mn<1.0, Fe<0.25, Si<0.25, 0.02<Zn<0.40, optionally one or more of the elements Cr, Cu, Ti, Zr such that Cr<0.25, Cu<0.20, Ti<0.20, Zr<0.20, other elements <0.05 each and <0.15 in total, wherein Mn+2Zn>0.75. In the welded state, these products have improved mechanical strength and resistance to fatigue without unfavorable consequences with regard to toughness and corrosion resistance, and are particularly suitable for naval construction, for industrial vehicles and for bicycle frames made of welded tubes.

Abstract: A route calculation method allowing an optimised route to be drawn up by means of a calculator between a point ? and a point ?, consisting in using digitised data from at least a first and a second source, and consisting of (i) determining a plurality of alpha nodes (N?), referenced in both the first and the second sources, and determining a first optimisation value for each of the nodes; (ii) determining a plurality of beta nodes (N?), referenced in both the third and the second sources, and determining a first optimisation value for each of the nodes; (iii) determining, for all the pairs of nodes N?and N?, a second optimisation value for each of the pairs of nodes (N?, N?); (iv) determining, for the set of alpha-beta route, the optimum nodes between the points alpha and beta. The invention also relates to a device allowing implementation of the present method.

Abstract: This invention relates to a method of manufacturing highly worked pieces of AlCuMg alloy, comprising the steps of:

Abstract: Rolled or extruded products for welded constructions made of AlMgMn type aluminum alloy. These products contain, in % by weight, 3.0<Mg<5.0, 0.75<Mn<1.0, Fe<0.25, Si<0.25, 0.02<Zn<0.40, optionally one or more of the elements Cr, Cu, Ti, Zr such that Cr<0.25, Cu<0.20, Ti<0.20, Zr<0.20, other elements <0.05 each and <0.15 in total, wherein Mn+2Zn>0.75. In the welded state, these products have improved mechanical strength and resistance to fatigue without unfavorable consequences with regard to toughness and corrosion resistance, and are particularly suitable for naval construction, for industrial vehicles and for bicycle frames made of welded tubes.

Abstract: Rolled or extruded products for welded constructions are made of an aluminum-magnesium-manganese type aluminum alloy, consisting essentially of, by weight: 3.0<Mg<5.0 0.5<Mn<1.0 Fe<0.25 Si<0.25 Zn<0.40 Cr<0.25 Cu<0.20 Ti<0.20 Zr<0.20 The product has a volumetric fraction of Mn containing dispersoids grater than 1.2%.

Abstract: The invention relates to rolled or extruded products for welded constructions made of AlMgMn type aluminium alloy.

Abstract: A mold for plastics made of a rolled, extruded or forged AlZnMgCu aluminum alloy product >60 mm thick, and having a composition including, in weight %: 5.7 < Zn < 8.7 1.7 < Mg < 2.5 1.2 < Cu < 2.2 Fe < 0.14 Si < 0.11 0.05 < Zr < 0.15 Mn < 0.02 Cr < 0.02 with Cu+Mg<4.1 and Mg>Cu, other elements<0.05 each and<0.10 in total, the product being treated by solution heat treating, quenching and aging to a T6 temper.

Abstract: A metal sheet with a total thickness >0.5 mm comprising an AlCuMg aluminum alloy consisting essentially of Al and, in percent by weight:______________________________________ 3.5 < Cu < 5.0 1.0 < Mg < 2.0 Si < 0.25 Fe < 0.25 Mn < 0.55 ______________________________________all other elements: <0.25with 0<Mn-2Fe<0.2,optionally plated with another aluminum alloy with the thickness of the plating being no more than 12% of the total thickness of the sheet, the sheet having a recrystallization rate >50% at all points and a deviation in recrystallization rate between surface and mid-thickness <35%, the sheet having in the quenched and stretched state or in the quenched, stretched and annealed state, a deflection after machining to mid-thickness of a bar resting on two distant supports with a length l such that:fe<0.14l.sup.2,where f is the deflection expressed in micrometers, e being the thickness of the sheet in mm and l is the length of the bar in mm.

Abstract: Sheet for welded constructions having an ultimate tensile strength R.sub.m >275 MPa, elongation A>22% and a product A.times.R.sub.m >7000, having the composition, in % by weight:______________________________________ Mg: 4.2-4.7; Mn: 0.20-0.40; Zn: <0.20; Fe: 0.20-0.45; Si <0.25; Cr <0.15; Cu <0.25; Ti <0.10; Zr <0.10; ______________________________________other elements <0.05 each and <0.20 in total,balance Al.

Abstract: A rolled, forged or extruded AlZnMgCu alloy product, used to manufacture structural elements for aircraft, particularly wing spars. The product is greater than 60 mm thick, and has a composition (% by weight):5.7<Zn<8.71.7<Mg<2.51.2<Cu<2.20.07<Fe<0.14Si<0.110.05<Zr<0.15Mn<0.02Cr<0.02with Cu+Mg<4.1, and Mg>Cu,other elements <0.05 each and <0.10 in total. The product is treated by solution heat treating, quenching and possibly aging, and has in the treated T7451 or T7452 temper the following properties:a) a yield strength measured at quarter-thickness>400 MPa in the L and TL directions,b) toughness under plane strain in the S-L direction>26 MPa.sqroot.m and in the L-T direction >74-0.08e-0.07R.sub.0.2L MPa.sqroot.m (e=thickness in mm), andc) a stress corrosion threshold>240 MPa.

Abstract: A metal sheet with a total thickness>0.5 mm comprising an AlCuMg aluminum alloy consisting essentially of Al and, in percent by weight:3.5<Cu<5.01.0<Mg<2.0Si<0.25Fe<0.25Mn<0.55all other elements: <0.25with0<Mn-2Fe<0.2,optionally plated with another aluminum alloy with the thickness of the plating being no more than 12% of the total thickness of the sheet, the sheet having a recrystallization rate>50% at all points and a deviation in recrystallization rate between surface and mid-thickness<35%, the sheet having in the quenched and stretched state or in the quenched, stretched and annealed state, a deflection after machining to mid-thickness of a bar resting on two distant supports with a length l such that:fe<0.14 1.sup.2,where f is the deflection expressed in micrometers, e being the thickness of the sheet in mm and l is the length of the bar in mm.