Abstract: The article is produced by prepositioning nonwoven reinforcement, coated h a bond enhancing compound inside of a centrifugal casting mold that is surface coated for protective shielding of the reinforcement. Molten matrix metal is then introduced into the mold while being rotated about its longitudinal axis until the molten metal completely encapsulates the reinforcement.

Abstract: A wear resistant, high-impact iron alloy member (20,22) suitable for use in an impact rock crusher and a method of making the same. The invention provides a white iron alloy member (20,22) having at least one wear surface (24) with carbide granules encapsulated in a matrix (28) of white iron and contained in a selected region adjacent the wear surface (24) of the member (20,22). The iron alloy member is made by a method of casting comprising the steps of: placing a molding insert (35,40) in a mold (60) at a selected location adjacent the wear surface (24); positioning a quantity of carbide granules (29), most preferably tungsten carbide granules 29, in the molding insert (35,40) before pouring; and pouring molten white iron alloy into the mold (60) to form the casting.

Abstract: A method of die casting a cylinder block of aluminum wherein cylinder liners of another material are cast in. A cylinder insert component (14) is placed in the liner, leaving a gap (a) between the outer surface of the insert component and the inner surface of the liner. Pressurized aluminum melt flows against the outside of the liner and is allowed to flow into the gap via a passage (22) between the lower edge of the liner and a lower insert component (15), so that there will be the same pressure on the outside and inside of the liner. The aluminum inside the liner is then machined away.

Abstract: A method is provided for manufacturing an encapsulated magnet carrier by forming a wax pattern of the magnet carrier with an annular conducting ring annular chamber section, placing the conducting ring over the wax pattern in the annular chamber section, and forming an investment casting shell mold around the wax pattern and conducting ring. The magnet carrier is then cast with the conductor ring in place by pouring molten casting material into the mold, solidifying the casting material, and then separating the cast magnet carrier with the cast in place conductor ring from the surrounding mold.

Abstract: In a method of integrally attaching a hollow member to a cast product by casting so that the hollow member communicates with a hollow interior of the cast product, a closure member is fitted into an open end of the hollow member so that the open end of the hollow member is closed by the closure member. The closure member projects from a core for forming the hollow interior of the cast product in a direction different from a direction in which the core is drawn out of the cast product. A molten metal is poured into a casting mold after the casting mold has been clamped. The closure member is moved inside the core after solidification of the molten metal so that the closure member is released from the fitting in the hollow member. The core is drawn out of the solidified metal subsequently to the moving step of the closure member.

Abstract: The invention relates to an apparatus for casting a conductor of a cage rotor of an induction motor. A rotor core (13) comprising a laminated steel sheets is housed in a recess portion of a casting mold, an upper end portion thereof is held by a holding portion (70) and molten metal is supplied into a plurality of slots formed in the rotor core, thereby forming a plurality of conductor rods and a pair of end rings connecting the ends of the conductor rods with one another. The holding portion (70) comprises a cup (72) and a cylinder (73), and an axial dimension of the cup (72) is selected in correspondence to an axial dimension of the rotor core (13) housed in the recess portion of the casting mold. Further, by using a double cylinder (77, 79) in the holding portion (70), a rotor having higher quality can be obtained. For this reason, the same conductor casting apparatus can be used for casting the conductor of the rotor having different axial lengths and qualities depending on specifications.

Abstract: A ring carrier, for use in a piston casting die, is an annular-shaped member having a channel on an outer surface area. The piston casting die includes projections for engaging the channel and supporting the ring carrier within the piston casting die. At least one of the projections is fixed and at least one other of the projections is movable into and out of the piston casting die. The movable projection includes a driving member for urging the movable projection into engagement with the channel for supporting the ring carrier at a predetermined position within the piston casting die.

Abstract: A male mold having a first cavity and a female mold with a second cavity are provided, the first cavity and the second cavity having a contour complimentary to that of a golf club head, a bottom wall defining one of the first cavity and the second cavity having a recess defined therein. An insert piece is inserted into the recess. Molten metal is poured into the first cavity and the second cavity to form the golf club head in which the insert piece is integrally formed with the golf club head.

Abstract: A method for casting wear resistant parts which is capable of forming a hardened portion at a desired position with ease, whereby a wear resistant part can be obtained which has both wear resistance and toughness. To this end, the method includes the steps of filling the cacity of a holding member (16), which can be melted into molten steel, with a hardened portion forming material (19) comprising superhard particles (17), placing the holding member (16) which has been so filled with the hardened portion forming material (19) in a casting mold (10), pouring molten steel into the casting mold (10), thereby causing not only the holding member (16) to be melted into molten steel but also the superhard particles (17) to be dispersed, and solidifying the molten steel. In addition, the hardened portion forming material (19) can be constituted by superhard particles (17) and graphite powder (18) and/or metallic powder.

Abstract: A manufacturing process of a golf club head includes the following steps: (a) Construct a hollow golf club head frame which at least two opposite supporting pins protruding outwardly from an outer perimeter thereof. (b) Position the hollow golf club head frame within a precision mold which has an internal molding cavity, wherein the internal molding cavity of the mold has at least two opposite pin slots to fittingly receive the two respective supporting pins of the hollow golf club head frame for defining an uniform intermediate gap between the outer perimeter of the hollow golf club head frame and an inner wall of the mold. (c) Fill out the intermediate gap between the mold and the hollow golf club head frame with a melted metal or alloy in order to form a rigid outer shell to uniformly conceal the hollow golf club head frame.

Abstract: An inner bearing is disposed in a cast mold formed by a punch and a die. A molten metal is poured into the die. Pressure is then applied to the molten metal. The socket plate is then knocked out by means of a pin member which passes into the mold to dislodge the socket plate.

Abstract: A preformed fiber reinforced metal matrix composite reinforcement insert is clad or covered with a material that is effective to avoid the adverse reactions between the insert/melt and any exposed insert fibers/matrix. The clad insert is suspended in the mold cavity and a melt is introduced into the mold cavity about the clad insert. The melt is solidified about the clad insert to provide a casting of the solidified melt having the clad insert disposed therein to reinforce the casting.

Abstract: A cast abrasion resistant hollow ball is formed with a hollow ceramic core that generates no gas during the casting operation. Solid ceramic bars or supports hold the hollow ceramic core in a fixed location at the center of the cast ball during the casting process. There are no open holes or openings in the ceramic supports due to the fact that the hollow ceramic sphere is composed of an inert refractory material which eliminates any gases being generated during the pouring and solidification of the liquid metal in the casting process.

Abstract: A cast piston which includes a metal insert and a combustion bowl, with the metal insert defining a sharp undercut structure at an upper portion of the combustion bowl. The sharp undercut structure of the insert contains combustible gases and helps improve emissions. The metal insert also strengthens the head of the piston. The cast piston is fabricated by positioning the metal insert in a casting mold and casting a piston in the mold. The final shape of the combustion bowl is produced by a machining process which forms the sharp undercut structure on the insert.

Abstract: A generally annular rotor insert is formed by casting a metal matrix composite. The rotor insert includes a pair of brake friction plates which are disposed in mutually spaced apart relationship. The brake friction plates include inner surfaces and generally parallel outer surfaces. At least one of the inner surfaces of the brake friction plates is provided with a plurality of spacing elements for engagement with the inner surface of the other one of the brake friction plates for maintaining the plates in predetermined spaced apart relationship. The rotor insert is placed in a rotor mold. A hat-shaped rotor body is cast in the rotor mold whereby the spacing elements are effective to maintain the plates in a predetermined spaced apart relationship.

Abstract: A method for casting metals around an article having a bore extending along a central axis and defined at least in part by an interior cylindrical wall portion utilizes a mandrel having a cylindrical exterior surface portion sized to be slidingly positioned in said bore in close relationship with said interior cylindrical wall portion. The mandrel has an annular groove in which is positioned a canted coil spring with a series of outer contact points extending radially outwardly beyond said cylindrical exterior surface portion. The article is moved onto the mandrel to compress the spring and deflect the outer contact points such that the spring imparts an outwardly directed force to the article interior cylindrical wall portion to provide frictional resistance between the spring, outer contact points and the interior cylindrical wall portion to retain the article on the mandrel while casting molten metal around the mandrel supported article to form a cast part.

Abstract: The golf club head comprises a head body which defines the front striking face of the club head. Disposed within the head body is a ceramic insert which defines the rear face of the club head. The head body is cast about the insert in a manner wherein the insert is partially encapsulated by the head body and rigidly captured therewithin.

Abstract: There is disclosed a mold for molding a box-shaped product having metal inserts each having a body and leg portions projecting from the product. The mold includes a pair of mold halves, and a core for placing the inserts thereon in such a manner that the body of the insert slightly spaced from the core, and that the body of the insert is disposed generally flush with or slightly spaced from a surface of one of the mold halves in which a cavity is formed. Slide cores, received respectively in grooves in the one mold half, for movement therealong in directions perpendicular to a direction of opening of the two mold halves, and each of the slide cores has a cavity portion which is to be aligned with the cavity in the one mold half.

Abstract: A method of forming a unitary heat sink metal body by supporting one end of each plurality of flat metal plates or fins in a row so that the plates are spaced and parallel and casting a base about the freely extending ends of the plates. More specifically, the base is formed by die casting. Apparatus for carrying out the above method is also provided which includes a fixed base and a support for supporting a plurality of flat metal plates or fins in spaced parallel relationship so that one end of each plate engages the fixed base and the opposite end of each plate extends freely from the support. The freely extending ends of the plates are positioned within the cavity of a mold such as a die cast mold. The cavity of the mold is filled with molten metal for filling the spaces between the freely extending ends of the plates and forming the base of the heat sink when the molten metal solidifies.

Abstract: A holding member (22) which can hold a predetermined axial-length laminated core member by pressing down both axial end faces thereof is used to hold a short laminated core member (24) and a spacing element (48) having a thickness generally equal to the difference between the axial lengths of those laminated core members. The spacing element is disposed at a position between one axial end face of the laminated core member (24) and a lid element (32) of the holding member (22). The laminated core member (24) and the spacing element (48) are both held by the holding member (22) and are introduced into the mold (20) to form a conductor portion integrally with a predetermined axial-length laminated core member held by the holding member (22). In this state, molten metal is poured into slots (38) of the laminated core member (24) and annular cavities (44, 46), and thus a conductor portion is formed integrally with the laminated core member (24) when the molten metal is set.

Abstract: A process for forming pressure cast alumina tile reinforced aluminum alloy rmor in which a silver coated aluminum disc is first inserted into a mold assembly, the mold assembly includes a base plate, a hollow steel die with a removable steel liner located on the base plate, a plug disposed on the base plate within the die cavity, and a punch movably disposed within the die cavity, the aluminum disc being inserted within the die cavity over the plug. Next, an alumina tile preform is prepared by cutting a plurality of alumina tiles and weaving the tiles together with a stiff steel wire. The alumina tile preform is inserted over the silver coated aluminum disc in the cavity of mold assembly. The steel die, the plug and the disc are heated. The punch is also heated separately. A melt of molten aluminum is prepared and poured into the die cavity, completely covering the alumina tile preform. The heated punch is immediately driven into the cavity to apply pressure to the molten aluminum.

Abstract: A composite disc brake rotor including a generally hat-shaped rotor body cast from an alloy, and a generally annular rotor insert cast from a metal matrix composite. The rotor body includes a generally centrally located mounting surface, and a radially outwardly extending annular portion. The rotor insert includes a pair of brake friction plates which are disposed in mutually spaced apart relationship. The brake friction plates include inner surfaces and generally parallel outer surfaces. The outer surfaces of the brake friction plates define a pair of brake friction surfaces adapted to be frictionally engaged by a pair of brake pads of a disc brake assembly. In accordance with the present invention, at least one of the inner surfaces of the brake friction plates is provided with spacing elements for engagement with the inner surface of the other one of the brake friction plates for maintaining the plates in a predetermined spaced apart relationship when the rotor body is cast in situ therewith.

Abstract: A hermetic compressor assembly is disclosed including a motor compressor disposed within a hermetically sealed housing, wherein the housing has an oil sump in the bottom thereof from which oil is drawn to lubricate the compressor mechanism. An electric drive motor includes a vertical rotor having a lower axial end ring with rotor counterweight die cast therein, whereby turbulence and resulting agitation of the oil in the oil sump is prevented during rotation of the rotor. By die casting the counterweight within the end ring additional attachment parts and manufacturing steps are eliminated.

Abstract: A piston assembly (10) for use in an engine. The piston assembly (10) includes a piston body (12) with a liner (24) covering the interior surface (22) thereof. The liner (24) imbues added strength and dimensional stability during casting, machining, engine assembly, and in service. At the same time, piston weight for a given volume is reduced without sacrificing strength. The invention also includes a method for manufacturing the piston assembly (10).

Abstract: The invention discloses an improved method for forming metal matrix composite castings. The method achieves the casting having increased mechanical properties by using a selectively permeable mold in conjunction with pressurized gas. This allows a greater degree of metal infiltration within the interstices of a suspended preform. The method teaches the use of whiskered, fibered and particulated ceramic constituents for use in the preform, as well as various embodiments of casting methods.

Abstract: A two-step two-piece high-pressure casting process for the fabrication of a scroll member containing a generally circular end plate, a scroll hub on one side of the end plate and an involute wrap on the other side thereof. The involute wrap is pre-fabricated from a wear-resistant alloy or aluminum alloy based composite having low liquidus temperature which is placed inside the involute groove of a scroll mold. The scroll mold contains a mobile scroll mold and a stationary scroll mold. The mobile scroll mold contains a first cavity having the shape of the scroll hub; whereas the stationary scroll mold contains a second cavity having the shape of the circular end plate and an involute groove disposed below the second cavity.

Abstract: A method for impregnating a metal product with a hard wear-resistant surface area comprises providing a wear-resistant layer in the form of a sintered sheet having a pattern which facilitates metallurgical bonding with a metal melt and optionally, at least one "pin" integrally attached onto a surface of the sheet. This wear-resistant layer is attached onto the sand core and a metal melt is cast so as to produce the final product. This method can be used to produce a variety of metal products although cast iron is preferred. Moreover, this process can effectively employ any of the hard phases which can be sintered, e.g., tungsten carbide, chromium carbide, and the like.

Abstract: A method for casting a cast part onto the end of a hollow section places the end of the hollow section in a defined position in a die which is then closed. The end opening in the hollow section is closed in a sealed manner against the penetration of cast material, at least during casting, the molten cast material is introduced into the remaining free space in the die and the hollow section is thereby cast around in a positive-locking manner, at least at the end. To improve the fixing of the hollow sections within the cast part, the hollow section is cooled during the casting of the cast part.

Abstract: This invention relates generally to a novel method of preparing self-supporting bodies, and novel products made thereby. In its more specific aspects, this invention relates to a method for producing self-supporting bodies comprising one or more boron-containing compounds (e.g., a boride or a boride and a carbide, etc.) by reactive infiltration of molten parent metal into a preform comprising boron carbide or a boron donor material combined with a carbon donor material and, optionally, one or more inert fillers, to form the body. Specifically, a boron carbide material or combination of a boron donor material and a carbon donor material, and in either case, optionally, one or more inert fillers, are sedimentation cast, spray coated, tapped, slip cast, pressed, etc., onto or into a body and into a particular desired shape.

Abstract: A method of manufacturing one-piece composite drill bits or coreheads suitable for drilling or coring petroleum wells or in mining. A shell (32) of hard wear-resistant and erosion-resistant material is formed by investment casting in a finished form requiring nominal or no finish shaping. A shank (44) of machinable material is then cast inside the shell, in conditions which cause fusion bonding of the two materials to form a one-piece composite drill bit (42) or corehead by the two-stage casting procedure. The shank (44) is finish machined to form a connection for attachment to a drill string. Pockets (20) for cutter inserts and gauge protectors can be pre-formed to final dimensions in the hard shell (32). The investment mold for the shell (24) allows the hard material to be cast in the required shape with little or no final shaping. The method enables drill bits and coreheads to be manufactured at relatively low cast by eliminating most or all skilled manual finishing operations.

Abstract: The article is produced by prepositioning nonwoven reinforcement made of a etallic mesh to which ceramic tiles are wired inside of a centrifugal casting mold. Molten matrix metal is then introduced into the mold while being rotated about an axis parallel to the inflow path of the molten metal until it completely encapsulates the reinforcement.

Abstract: A metal composite material provides improved strength at all temperatures, in particular at those temperatures greater half the melting point of its matrix. The metal composite material is at least 50 volume percent hard particulate material in a matrix which is significantly more ductile than the hard particulate material. At or above 50 volume percent hard particulate material, each particle is surrounded by a thin film of the matrix material. This thin film resists deformation by converting sliding motion between particles into the rotational motion of the particles about each other. The matrix may be made by infiltrating a powder of the particulate material with a charge of the matrix material, for example, by hot isostatically pressing the matrix material into the powder or by melting a block of matrix material on top of the powder and thus infiltrating the powder by gravitational flow of the melted matrix material into the powder.

Abstract: A method of making a composite casting wherein a casting mold is provided having a melt-receiving mold cavity and a preformed metallic or intermetallic insert located in a predetermined position in the mold cavity. A melt is introduced into the mold cavity about the insert and is solidified to provide a composite casting having one or more interfaces between the insert, or an insert positioning member, and cast/solidified metal about the insert. The interface is exposed on or communicates with an exterior surface of the composite casting. After separation from the mold, the composite casting is subjected to a sealing operation to gas-tight seal the interface(s) at the exterior casting surface. For example, the interface can be sealed by providing fused material at the interface.

Abstract: A die cast, two pole, insulated magnet assembly and method of manufacture. A magnetic body of preferably ceramic ferrite material is sandwiched between two pole pieces such that each pole has a free end which projects beyond the magnetic body. The sandwiched pieces are then inserted into a female mold having a main mold cavity and a pair of opposed pole cavities formed therein to receive the projecting ends of the poles, thereby correctly aligning them. A metal sleeve is then inserted into the main mold cavity such that an annular space is created between the sandwiched magnet assembly and the sleeve. Molten zinc is then poured into the mold and sleeve to encapsulate the magnet except for the projecting ends of the poles. After the zinc has solidified, the assembly is removed from the mold.

Abstract: The disclosure relates to a process for producing molded parts, made of aluminum or an aluminum alloy and having integrated channels intended for the distribution of a lubricant or for the circulation of a liquid coolant. In the process one or more tubes, made of aluminum or an aluminum alloy and previously formed, are placed in a mold, the ends of the tube or tubes being on the outside of the mold or of the cores inserted therein. The aluminum or alloy is poured into the cavity of the mold, and after demolding, the surplus portions of the tube or tubes are eliminated. This process is used for the mass production of molded parts having a system of internal channels, such as cylinder heads, compressor cylinders, lubrication systems, convectors, etc.

Abstract: A method for impregnating a metal product with a hard wear-resistant surface layer comprises providing a wear-resistant layer in the form of a partially sintered sheet having at least one peg formed therein; attaching the wear-resistant layer to a mold surface; and casting a metal melt so as to produce a metal product having a wear-resistant material surface layer. Preferably the mold surface is a sand core and the sheet has a hexagonal pattern molded therein so as to form a plurality of pegs.

Abstract: A reinforcement made of a composite material is positioned inside of a ceifugal casting mold. Molten matrix metal is then introduced into the mold while being rotated about its longitudinal axis until the molten metal completely encapsulates the reinforcement.

Abstract: A composite brake drum particularly adapted for motor vehicle applications. The brake drum includes a reinforcement assembly embedded within the cylindrical portion of the drum. The reinforcement assembly is preferably made from steel wire stock and includes a plurality of circular rings or loops spaced axially within the brake drum cylindrical portion. Axially extending locator wires are mechanically fastened to the reinforcing loops and serve to locate the loops. End portions on the locator wires contact only one of the mold halves forming the mold cavity and enable the device to be essentially self-locating without crossing the parting line of the mold. The end portion of the locator wires contacting the radially outer side of the mold cavity is formed with a spring bar to enable the locator wires to move outward as the reinforcing loops are thermally expanded during the casting process.

Abstract: A piston is formed with a rib which is formed on a base portion and is formed with through holes which is formed in such manner that the core is in contact with a projection portions of a holding die.

Abstract: A method for impregnating a metal product with a hard wear-resistant surface area comprises providing a wear-resistant layer in the form of a sintered sheet having at least one "pin" integrally attached onto a surface of the sheet. This wear-resistant layer is attached onto the sand core and a metal melt is cast so as to produce the final product. This method can be used to produce a variety of metal products although cast iron, and in particular, ductile iron are preferred. Moreover, this process can effectively employ any of the hard phases which can be sintered, e.g., tungsten carbide, chromium carbide, and the like. Preferably, both the sheet and the "pins" are made from the same mixture of a wear-resistant material, an organic binder, and at least one plasticizer.

Abstract: A method is disclosed for making an article, such as a cylinder head, having one or more hollow ceramic tubes, such as ceramic exhaust port liners, cast in-situ therein with reduced cracking or breakage of the ceramic tube from tensile and compressive stresses exerted on the ceramic tube during the casting process. The method involves forming a removable core in the ceramic tube of a core material having a thermal expansion coefficient not exceeding about 10 times that of the ceramic tube to minimize crack-causing differential thermal expansion-induced tensile stresses on the ceramic tube when molten metal is cast therearound, casting the molten metal about the cored ceramic tube in a mold cavity, stress relieving the cast article at an elevated temperature before the cast article cools to a lower temperature at which crack-causing differential thermal contraction-induced compressive stresses are exerted on the cast in-situ ceramic tube, and removing the core from the cast article.

Abstract: A casting mold includes a melt-receiving mold cavity having a preformed metallic or intermetallic insert suspended therein by one or more first elongated, slender suspension members fixed at one end to the insert and at another end to the mold to locate the insert in a first direction in the mold and by one or more second elongated, slender suspension members fixed at one end to the insert and abutting the mold at another end to locate the insert in a second direction in the mold. A melt of metallic or intermetallic material is introduced into the mold cavity about the suspended insert and the suspension members and is solidified to form a composite casting.

Abstract: A casting mold includes a melt-receiving mold cavity having a preformed metallic or intermetallic insert suspended therein by at least one elongated, slender suspension member fixed at one end to the insert and at another end to the mold. A melt of metallic or intermetallic material is introduced into the mold cavity about the suspended insert and the suspension member and is solidified to form a composite casting The casting is subjected to elevated temperature/elevated isostatic gas pressure conditions wherein the interface between the suspension member and the cast melt is effective to inhibit gas penetration between the insert and cast melt, thereby allowing a sound, void-free, contamination-free metallurgical bond to be produced between the insert and the cast melt.

Abstract: Molten metal is die cast directly to and around a surface of a fiber reinforced plastic part in such a way as to actually take advantage of the thermal decomposition of the part resin caused by the hot metal. The molten metal is introduced to the surface and cooled just rapidly enough to allow a controlled, limited resin decomposition to occur at the top surface. Molten metal then flows in and around the exposed fibers, creating a secure interlock.

Abstract: A method for impregnating an aluminum product with a hard wear resistant surface area comprises providing a desired pattern of particles thereon, providing a sand core which has an high temperature adhesive layer on at least a portion thereof and transferring the pattern of particles onto the adhesive layer, in such a manner so as to minimize contact with the adhesive. After the adhesive is cured, an aluminum melt is cast around the carbides so as to produce an aluminum product having a wear resistant material surface layer. Preferably, the aluminum alloy contains about 4% by weight of copper and the wear resistant material comprises tungsten carbide containing 12 wt. % Co. In one embodiment, the particles are transferred onto the adhesive layer through the use of an adhesive tape which is used to pick up the pattern of particle and then placed upon the adhesive layer on the core surface.

Abstract: A method for impregnating an iron product with a hard wear-resistant material surface layer comprises providing a pattern of particles onto a high temperature adhesive layer on a sand core and casting of the iron melt around the particles so as to produce an iron product. Preferably, the pattern of particles is produced by providing a mesh plate having a desired pattern of holes and spreading the particles onto the sheet. The pattern of particles is then transferred on to the adhesive layer so as to minimize contact with the adhesive. This can be accomplished, for example, through the use of adhesive tape. Preferably, the iron product of the present invention comprises ductile iron while the wear-resistant material comprises tungsten carbide which can include about 12 wt % Co.

Abstract: A ventilated disk used in automobiles and industrial vehicles includes a pair of mutually opposing disk portions, a plurality of radially extending ribs integrally formed with the disk portions and interposed therebetween, and at least one annular damping member. Formed in each rib is at least one radially extending oblong hole which passes through the rib in the circumferential direction. The oblong holes in the respective ribs form at least one circular array along a circular whose center is the center of the disk. The annular damping member(s) extends/extend through the oblong holes forming the annular array(s) and is in contacting engagement with the outer end portion and side portion of each oblong hole.

Abstract: In a method and apparatus for casting an engine block, a core holding portion located below an open upper mold located above a lower mold fixed on a stationary platen is caused to hold a water jacket formation destructive core surrounding a cylinder bore formation portion. Slide molds divided in a circumferential direction, located between the upper mold and the lower mold, and supported by the upper mold to be opened/closed in a horizontal direction is closed. Mold clamping is performed upon downward movement of the upper mold. A molten metal is injected at a high casting pressure of not less than 300 kg/cm.sup.2 from a molten metal injection sleeve open to a portion at which the lower mold is brought into direct contact with the upper mold.

Abstract: The invention is a method of forming a passage haing a predetermined linear or non-linear shape in a ferrous casting, comprising four steps. First, a tube of a material compatible with the ferrous casting is secured to a generally cylindrical supporting ring to form a tube-containing ring. Second, this tube-containing ring is placed in a recess within a mold for the ferrous casting. Third, molten metal is poured into the mold to form the casting. Finally, the completed ferrous casting is removed from the mold when the molten metal has solidified.

Abstract: A composite brake drum particularly adapted for motor vehicle applications. The brake drum includes a reiforcement assembly enclosed within the cylindrical portion of the drum. The reinforcement assembly is preferably made from steel wire stock and includes a plurality of circular loops spaced axially within the brake drum cylindrical portion. Axially extending locator wires are mechanically fastened to the reinforcing loops and serve to locate the loops. End portions on the locator wire contact only one of the mold halves forming the mold cavity and enable the device to be essentially self-locating without crossing the parting line of the mold. By not crossing the parting line, the position of the loops is maintained within acceptable tolerance limits from the finished friction surface of the drum.