SUMITOMO LIGHT METAL INDUSTRIES, LTD. Patent applications |
Patent application number | Title | Published |
20140096878 | HIGH-STRENGTH ALUMINUM ALLOY EXTRUDED MATERIAL AND METHOD FOR MANUFACTURING THE SAME - A high-strength aluminum alloy extruded material contains Si: 0.70 to 1.3 mass %; Mg: 0.45 to 1.2 mass %; Cu: 0.15 to less than 0.40 mass %; Mn: 0.10 to 0.40 mass %; Cr: more than 0 to 0.06 mass %; Zr: 0.05 to 0.20 mass %; Ti: 0.005 to 0.15 mass %, Fe: 0.30 mass % or less; V: 0.01 mass % or less; the balance being Al and unavoidable impurities Crystallized products in the alloy have a particle diameter of a is 5 μm or less. Furthermore, an area ratio of a fibrous structure in a cross section parallel to an extruding direction during hot extrusion is 95% or more. | 04-10-2014 |
20140023874 | METHOD FOR WELDING ALUMINUM ALLOY MATERIALS AND ALUMINUM ALLOY PANEL PRODUCED THEREBY - First and second aluminum alloy materials ( | 01-23-2014 |
20130295406 | SHEET MATERIAL HAVING A CONCAVE-CONVEX PART, AND VEHICLE PANEL AND LAMINATED STRUCTURE USING THE SAME - A sheet material ( | 11-07-2013 |
20130295405 | SHEET MATERIAL HAVING A CONCAVE-CONVEX PART, AND VEHICLE PANEL AND LAMINATED STRUCTURE USING THE SAME - A sheet material ( | 11-07-2013 |
20130288015 | SHEET MATERIAL HAVING A CONCAVE-CONVEX PART, AND A VEHICLE PANEL AND LAMINATED STRUCTURE USING THE SAME - A sheet material ( | 10-31-2013 |
20130192804 | DOUBLE PIPE FOR HEAT EXCHANGER - A double pipe for a heat exchanger includes an inner pipe having a plurality of spiral projections extending radially outward from an outer peripheral surface of the inner pipe. An outer pipe is disposed around the inner pipe. At least an inner peripheral surface of the outer pipe is at least substantially smooth and has an at least substantially circular cross section. The inner peripheral surface of the outer pipe contacts all of the projections of the inner pipe so as to define a plurality of peripherally-separated, outer flow paths between the inner pipe and the outer pipe. Fluid flowing within an inner flow path defined by the inner pipe exchanges heat with fluid flowing through the outer flow paths. Furthermore, an inscribed circle of the inner pipe has a first diameter (d | 08-01-2013 |
20130183498 | SHEET MATERIAL HAVING A CONCAVE-CONVEX PART, AND VEHICLE PANEL AND LAMINATED STRUCTURE USING THE SAME - A sheet material ( | 07-18-2013 |
20130175071 | PLATE-LIKE CONDUCTOR FOR A BUSBAR AND THE BUSBAR CONSISTING OF THE PLATE-LIKE CONDUCTOR - A plate-like conductor for a busbar, which is a clad member consisting of two copper layers derived from respective two copper plates clad on respective opposite major surfaces of an aluminum plate, an aluminum layer derived from the aluminum plate and formed integrally with the copper layers, and two alloy layers consisting of aluminum and copper and formed between the aluminum layer and the two copper layers. | 07-11-2013 |
20130108885 | SHEET MATERIAL HAVING A CONCAVE-CONVEX PART, AND A VEHICLE PANEL AND LAMINATED STRUCTURE USING THE SAME | 05-02-2013 |
20130029114 | ALUMINUM ALLOY WELDED MEMBER - An aluminum alloy material is welded by performing friction stir welding to form a welded section in an aluminum alloy welded component. The aluminum alloy material contains Mg: 0.3-6.0% (mass %, hereinafter the same), Cu: 0.2% or less, Si: 0.1% or less, Fe: 0.1% or less, the balance being Al and inevitable impurities. Second phase particles dispersed in the aluminum alloy material have a grain size of 5 μm or less as observed with an optical microscopic. Because the second phase particles are homogeneously dispersed in a welded section equivalent portion of the aluminum alloy welded component as compared to other portions, variations in pit formation caused by etching during anodizing are reduced, thereby eliminating color tone variations in the anodized coating formed on the aluminum alloy welded component. | 01-31-2013 |
20120312427 | HIGH-STRENGTH ALUMINUM ALLOY PRODUCT AND METHOD OF PRODUCING THE SAME - A high-strength Al—Cu—Mg—Si aluminum alloy product obtained by extrusion is characterized in that the microstructure of the entire surface of the cross-section of the aluminum alloy product is formed of recrystallized grains, the grains have an average aspect ratio (L/t) of 5.0 or less and the orientation density of the grains in the microstructure, for which the normal direction to the {001} plane is parallel to the extrusion direction in comparison with the grains orientated to random orientations, is 50 or less. The high-strength Al—Cu—Mg—Si aluminum alloy product is characterized in that rod-shaped precipitates are arranged in the grains of the matrix in the <100> direction, the precipitates have an average length of 10 to 70 nm and a maximum length of 120 nm or less, and the number density of the precipitates in the [001] direction measured from the (001) plane is 500 or more per square micrometer. | 12-13-2012 |
20120269998 | SHEET MATERIAL HAVING CONCAVE-CONVEX SECTION, AND LAMINATED STRUCTURE AND VEHICLE PANEL USING THE SAME - Within an area of substantially regular hexagons arranged at regular intervals on an imaginary reference plane, a sheet material includes a concave-convex section ( | 10-25-2012 |
20110236718 | FRAME MEMBER FOR USE IN TWO-WHEELED VEHICLE AND ALL-TERRAIN VEHICLE, AND METHOD FOR PRODUCING THE SAME - A frame member for use in a two-wheeled vehicle and an all-terrain vehicle that includes a plurality of Al members each made of a 7000 series Al alloy having a high strength is provided in which weld crack sensitivity is reduced and a weld joint having an excellent strength is provided. The alloy composition of the 7000 series Al alloy, which provides the Al member, contains Cu: 0.01 to 0.50%, Mg: 0.5 to 2.1%, and Zn: 4.0 to 8.5%, the balance consisting of Al and inevitable impurities. Further, in the production of the frame member, the plurality of Al members is integrated by welding using a filler metal containing Mg: 5.5 to 8.0%, Cr: 0.05 to 0.25%, Ti: 0.25% or less, Si: 0.4% or less, Fe: 0.4% or less, Cu: 0.1% or less, Zr: 0.05% or less and Zn: 0.25% or less, and the balance consisting of Al and inevitable impurities. | 09-29-2011 |
20100183899 | ALUMINUM ALLOY SHEET FOR PRESS FORMING - The present invention provides an aluminum alloy sheet for press forming, having the crystallo-graphic texture in which the orientation density of CR orientation ({001}<520>) is higher than that of any orientation other than the CR orientation. The orientation density of the CR orientation is preferably 10 or more (random ratio). The orientation densities of all orientations other than the CR orientation are preferably less than 10. The aluminum alloy sheet is preferably made of an Al—Mg—Si alloy. | 07-22-2010 |
20100051147 | High-strength aluminum alloy extruded product exhibiting excellent corrosion resistance and method of manufacturing same - The present invention provides a high-strength aluminum alloy extruded product exhibiting excellent corrosion resistance and secondary workability and suitably used as a structural material for transportation equipment such as automobiles, railroad vehicles, and aircrafts, and a method of manufacturing the same. The aluminum alloy extruded product has a composition containing 0.6 to 1.2% of Si, 0.8 to 1.3% of Mg, and 1.3 to 2.1% of Cu while satisfying the following conditional expressions (1), (2), (3) and (4), | 03-04-2010 |
20090250144 | METHOD OF JOINING HEAT-TREATABLE ALUMINUM ALLOY MEMBERS BY FRICTION STIR WELDING - A method of joining heat-treatable aluminum alloy members by friction stir welding, including the steps of: a T4-treatment-performing step of performing a T4 treatment on heat-treatable aluminum alloy members so as to impart T4 temper to the heat-treatable aluminum alloy members; a joining step of joining the heat-treatable aluminum alloy members with T4 temper by friction stir welding to provide a joined product; and a reversion-treatment-performing step of performing a reversion treatment, the reversion-treatment-performing step being carried out prior to or after the joining step. | 10-08-2009 |
20080206594 | MIG WELDED JOINT BETWEEN ALUMINUM AND STEEL MEMBERS AND MIG WELDING PROCESS - A MIG welded joint between aluminum and steel members is obtained by overlapping the aluminum member and the steel member each other and performing MIG welding using a filler wire made of a 4000 or 5000 series aluminum alloy on an end face of the overlapped aluminum member, wherein the aluminum member has a thickness P ranging from 0.5 to 2.0 mm, and the steel member has a thickness Q satisfying the following formula: 0.6≦Q/P≦0.8. | 08-28-2008 |
20080206593 | MIG WELDED JOINT BETWEEN ALUMINUM AND STEEL MEMBERS AND MIG WELDING PROCESS - A MIG welded joint between aluminum and steel members is obtained by overlapping the aluminum member and the steel member each other and performing MIG welding using a filler wire made of a 4000 or 5000 series aluminum alloy on an end face of the overlapped aluminum member, wherein the aluminum member has a thickness P ranging from 0.5 to 2.0 mm, and the steel member has a thickness Q satisfying the following formula: 0.6≦Q/P≦0.8, whereby a penetration depth of the steel member is equal to or less than 5% of the thickness Q thereof. | 08-28-2008 |