Patent application number | Description | Published |
20090000756 | Reducing residual stresses during sand casting - Residual stress is reduced in light metal alloy articles, e.g. aluminum alloy articles, formed as castings against a sand casting mold body by incorporating a wax composition of suitable softening or melting temperature with the sand particles of the mold or core body. The hot cast metal heats adjoining surfaces of the mold body. As the cooling metal forms a solid shell, the surrounding sand particle and wax mixture are heated sufficiently to melt or soften the wax incorporated on or between sand particles. This softens portions of the rigid mold body that could otherwise restrain shrinking surfaces of the casting and produce unwanted stressed regions that are retained in the casting and must be removed by subsequent processing. | 01-01-2009 |
20090078520 | INSERT WITH TABS AND DAMPED PRODUCTS AND METHODS OF MAKING THE SAME - One embodiment includes an insert including a body portion; a plurality of tabs extending from the body portion, wherein the tabs are tapered; and wherein the insert is constructed and arranged to provide damping. | 03-26-2009 |
20090096245 | Spray Cast Mixed-Material Vehicle Closure Panels - Unitary closure panels for automotive vehicles may be formed to have regions of different materials by a spray casting process. Separate sprays of different materials, for example two different metal alloys, are applied to touching regions of a spray application surface. The separate sprays may be applied sequentially or simultaneously to the forming surface to coat the respective regions so that the regions are contiguous or overlapping and a unitary body is formed. The spray formed body may be compressed and trimmed between facing surfaces to form a vehicle closure panel of specified outline, curvature, thickness, and porosity. | 04-16-2009 |
20100239880 | METAL MATRIX COMPOSITES AND METALLIC COMPOSITE FOAMS WITH IN-SITU GENERATED CARBONACEOUS FIBROUS REINFORCEMENTS - An exemplary embodiment discloses a thermoformed composite powder metallurgy based material including a matrix of sintered metal particles including at least one of a metal and metal alloy; and carbon fibers within said matrix having an orientation and shape derived from a precursor fibrous matte. | 09-23-2010 |
20110030855 | CORROSION RESISTANCE OF THE CAST Mg ALLOYS BY NOVEL MICROSTRUCTURAL PHASE MODIFICATIONS - A method of improving the corrosion resistance of magnesium alloy castings containing more than about 2 per cent by weight of aluminum is described. The method comprises: first selecting a casting process suitable for developing at least on the surface of the casting a microstructure comprising aluminum-depleted magnesium grains surrounded by an aluminum-rich layer and preferably incorporating at least some of an intermetallic compound based on the composition Mg | 02-10-2011 |
20110035150 | SIMPLE TECHNIQUE FOR DYNAMIC PATH PLANNING AND COLLISION AVOIDANCE - A system and method for dynamically mapping the position and speed of objects around a vehicle for collision avoidance purposes. The method determines the velocity of the vehicle in at least two orthogonal directions along with the position of the vehicle. From this information, a distance function map of the vehicle is created in a predefined area that includes a distance value at concentric locations from the vehicle. The distance function map is combined with distance function maps from all of the objects in the predefined area to determine whether a potential collision exists between the particular vehicle and any of the other objects. | 02-10-2011 |
20110036675 | INSERT WITH TABS AND DAMPED PRODUCTS AND METHODS OF MAKING THE SAME - One embodiment includes an insert including a body portion; a plurality of tabs extending from the body portion, wherein the tabs are tapered; and wherein the insert is constructed and arranged to provide damping. | 02-17-2011 |
20110094701 | METHOD AND APPARATUS FOR FORMING A CASTING - A casting chamber configured to form a casting from molten material includes an outer mold, a plurality of inner core elements, and a surface portion of a thermal chill device. The thermal chill device includes first and second interchangeable elements with the surface portion of the thermal chill device including one of a first surface portion of the first interchangeable element and a second surface portion of the second interchangeable element. The first surface portion of the first interchangeable element includes an insulating material and the second surface portion of the second interchangeable element comprising a metallic material. | 04-28-2011 |