Patent classifications
B22D21/007
METHOD FOR MAKING A BRAKING BAND OF A BRAKE DISC, METHOD FOR MAKING THE BRAKE DISC, BRAKE DISC, AND BRAKING BAND FOR BRAKE DISC
A method for making a braking band (2) for a brake disc (1) for a disc brake, comprising the following steps: a) preparing a mold (10) having an inner cavity (11), which comprises a first portion (11a) of a shape corresponding to the braking band (2) to be made; b) preparing a band preform (20) comprising a central layer (200) made of porous ceramic material comprising silicon carbide (SiC), an upper outer layer (201) and a lower outer layer (202), said upper outer layer (201) and said lower outer layer (202) being made of porous ceramic material comprising silicon carbide (SiC) and infiltrated with silicon (SiC+Si), said upper outer layer (201) and said bottom outer layer (202) being arranged in an opposing way and on opposite sides of the central layer (200); c) placing said band preform (20) inside the mold at the first portion (11a) of said inner cavity (11); and d) injecting a liquid or semi-solid aluminum alloy inside the entire inner cavity (11) of the mold (11) so as to infiltrate only the central layer (200) of said band preform (20) made of porous ceramic material with said aluminum alloy, obtaining at the first portion (11a) an aluminum metal matrix composite reinforced by said central preform (200) which defines the braking band (2) to be made. A braking band and a brake disc are made at least with the aforesaid method.
Metallic roll-on container
An aluminum roll-on container, and a method of manufacturing the same, retains a roller sphere for applying a product onto an external surface. The roller sphere can both rotate and move within the container, and a chamber is formed between the container and the roller sphere. In a first position of the roller sphere, the chamber forms a continuous volume with the interior volume of the container such that the chamber receives a product stored in the container volume. Then, in a second position, the chamber forms a continuous volume with the external environment such that rotation of the roller sphere transfers the product from the chamber to an external surface. A relationship between the roller sphere and an upper opening of the container allows the roller sphere to be pressed into the container and then retained in the container.
ALUMINUM ALLOY PLASTIC WORKED ARTICLE, METHOD FOR MANUFACTURING THE SAME, AND AUTOMOBILE COMPONENT
An aluminum alloy plastic worked article including a plastic worked portion formed of a thinned portion 22 formed by plastic working and rib portions 21 formed at two ends of this thinned portion 22 having an approximately H-shaped or U-shaped cross-section. The plastic worked portion is a plastic worked portion 2 having strain portions 23 in each of which an equivalent strain of up to 4.0 mm/mm generated by plastic working is present, and the strain portions 23 are each located in the vicinity of the surface of the plastic worked portion 2 at a boundary between the thinned portion 22 and each of the rib portions 21 and are each formed of a non-recrystalline texture N of aluminum which is not recrystallized or formed of the non-recrystalline texture N and a fine crystalline texture M which is recrystallized but has a crystal grain of 500 m or less.
Free-machining wrought aluminium alloy product and manufacturing process thereof
A wrought aluminium alloy product having the following chemical composition, expressed in wt %: 1.3%Si12%, 1.35%Fe1.8%
wherein the total Fe+Si content is higher than 3.4%, preferably 3.6%; 0.15%Cu6%; 0.6%Mg3%; optionally, one or more of the following elements: Mn1%; Cr0.25%; Ni3%; Zn1%; Ti0.1%; Bi0.7%; In0.7%; Sn0.7%; other elements <0.05% each and 0.15% in total; and the balance aluminium.
LOWER WING SKIN METAL WITH IMPROVED DAMAGE TOLERANCE PROPERTIES
The invention relates to a rolled product with state T351, having thickness of between 15 and 50 mm, made from aluminium alloy having the following composition, in % by weight, Cu: 3.85-4.15; Mg: 0.95-1.25; Mn: 0.45-0.57; Zr: 0.09-0.16; Ti: 0.005-0.1; Fe: <0.070; Si: <0.060; with Cu+Mg5.15; other lesser elements 0.05 each and less than 0.15 in total, the remainder being aluminium.
Method of casting articles from aluminium alloys
The invention relates to the field of aluminum metallurgy and can be used to produce ingots from high quality aluminum alloys when manufacturing aerospace and automotive products. The use of this invention relates to the technology of secondary modification. The method of casting products from aluminum alloys includes the following stages: a) aluminum melt preparation in the alloying furnace; b) addition alloy introduction into melt; c) degassing of the aluminum melt containing the addition alloy; d) addition alloy re-introduction; e) filtration of the aluminum melt obtained at stage d) and f) feeding the filtered melt into the crystallizer. It ensures the improved effectiveness of the aluminum melt modification with addition alloys without additional constructional changes in existing lines for aluminum ingot casting. It allows reducing the alloy modification costs, decreasing the grain in resulting alloys and improving plastic and mechanical properties of the obtained cast ingots and their products.
ALUMINUM ALLOY FOR DIE CASTING AND METHOD FOR MANUFACTURING ALUMINUM ALLOY CASTING USING THE SAME
Disclosed are an aluminum alloy for a die casting and a method of producing an aluminum alloy casting product. The aluminum alloy may include silicon (Si) in an amount of about 7.5 to 9.5 wt %; magnesium (Mg) in an amount of about 2.5 to 3.5 wt %; iron (Fe) in an amount of about 0.5 to 1.0 wt %; manganese (Mn) in an amount of about 0.1 to 0.6 wt %; and aluminum (Al) constituting the remaining balance of the aluminum alloy, all the wt % are based on the total weight of the aluminum alloy.
Methods and apparatus to produce high performance axisymmetric components
A material and method for manufacturing components. The method includes squeeze casting the material into a component of a desired shape and flow-forming the component that has been squeeze cast to refine the shape of the component. The method also includes heat treating the component to enhance the microstructure of the component and machining the component to further refine the shape.
Ultrasonic grain refining
A molten metal processing device including a molten metal containment structure for reception and transport of molten metal along a longitudinal length thereof. The device further includes a cooling unit for the containment structure including a cooling channel for passage of a liquid medium therein, and an ultrasonic probe disposed in relation to the cooling channel such that ultrasonic waves are coupled through the liquid medium in the cooling channel and through the molten metal containment structure into the molten metal.
DIRECT AGING OF A LIGHT METAL CASTING ALLOY COMPONENT
A method for heat treatment of a light metal casting alloy component includes, after demoulding at a demoulding temperature T.sub.E, bringing the light metal casting alloy component directly to an aging temperature T.sub.A above room temperature T.sub.R. Cooling of the light metal casting alloy component to the aging temperature T.sub.A proceeds with checking and regulation, and directly after cooling, the light metal casting alloy component is held at the aging temperature t.sub.A for a defined aging time T.sub.A.