Abstract: A method of forming patterns, trademarks and balance weight in a golf club head includes fabricating a rough working piece of the club head which has a trough located at a lower portion and reverse recesses for selected patterns and trademarks located at an upper portion thereof. Then fill and stuff the trough and recesses with a metallic material different from the club head that has a lower melting point (such as copper powder). Thereafter the stuffed recesses and trough and rough working piece of the club head are heated until the stuffed metallic material melted to form a strong binding with the rough working piece. Then grinding the rear side of the stuffed patterns and trademarks to expose the patterns and trademarks. The stuffed material in the trough becomes a balance weight. Finally to engage a hitting plate with a front circumferential edge of the trough to form a finished club head.

Abstract: A method of manufacturing a camshaft used in an internal combustion engine. The method of manufacturing the camshaft produces a camshaft which has reduced weight and added wear resistance at a lobe of the camshaft. The camshaft is manufactured to provide increased efficiency of the internal combustion engine. The method of making the camshaft includes mixing wear resistant material with a base material and metering the mixture into a rotating die. The rotating die rotates at a predetermined speed and forces the wear resistant material to the outer surface of the lobes.

Abstract: A spherical crown shoe is fabricated from an aluminum alloy. A cast shoe member is first fabricated by casting in such a shape having a substantially flat surface and a convex curved surface, which is similar to the shape of the shoe as a product. The cast shoe member is then formed into a formed shoe member substantially in the shape of a spherical crown, by pressing. The cast shoe member is smaller in diameter and greater in height than the formed shoe member, for example.

Abstract: The invention relates to a method for producing a cooled cast part (1) for a thermal turbo machine by using a known casting process. Between a wax model (10) of the cast part (1) and a ceramic core (6), a wax seal (8) is applied by hand above a step (7), only on an additional shoulder (9). The material that is created during the casting process at this point by the shoulder (9) and the wax seal (8) can be ground off without causing rough areas on the step (7) to form. This simplifies the welding or soldering of a cooling plate to the step (7).

Abstract: The disclosed invention comprises a novel golf club head and method of manufacturing the golf club head. The golf club head comprises a multilayer construction having a soft nickel alloy core and a hard chrome coating. The process used to produce the golf club heads involves an investment casting process in which the soft nickel alloy core is cast and the hard chrome coating is plated to the core. This multilayer design produces a golf club iron that is durable and consistent from iron to iron with feel characteristics which are generally equal to or better than traditional clubs formed from forged mild carbon steel.

Abstract: A method of manufacturing a cylinder for an internal combustion engine, which is manufactured by a process wherein a raw cylinder body having an insert core left remained therein is obtained using an insert core comprising a cylindrical body having almost the same outer diameter as the diameter of bore of the cylinder, and a scavenging port-forming portion projecting radially outward from the cylindrical body and having almost the same cross-sectional configuration as that of the scavenging port, the cylinder bore of the raw cylinder body thus obtained is then subjected to a boring to remove the cylindrical portion of the insert core, and the scavenging port-forming portion of the insert core which is left remained in the raw cylinder body is removed by making use of a press.

Abstract: An apparatus and a method for producing a one-part vehicle wheel are provided, in which a substantially disk-shaped, undercut-free pre-form is cast. Immediately after casting the pre-form is conveyed to a flow-forming machine, while maintaining a residual heat and is fixed therein. The circumferential area of the fixed pre-form is split and, by subsequent spinning and flow-forming, is constructed as an intermediate form with a rim, which already substantially has the wall thickness of the rim of the finished vehicle wheel. The intermediate form is cooled, sized, and undergoes a final end-working.

Abstract: A booster equipped carburetor in which the venturi bores in the carburetor have an enhanced drop leg booster therein. The drop leg booster has a venturi orifice and a “bent” channel member. The channel member communicates fuel to the venturi orifice and positions the venturi orifice below a second end of the channel member within a venturi bore of the carburetor. The channel member preferably has smooth sides to assure consistent flow without undue turbulence.

Abstract: A method for manufacturing a low-oxygen copper wire is provided, in which a dehydrogenating treatment can be performed without requiring a long moving distance of molten copper, and the generation of holes in solidification is suppressed, whereby high quality low-oxygen copper wire can be obtained having superior surface quality.

Abstract: A method of manufacturing a camshaft comprises the first step of casting a blank defining a central shaft, concentric journal bearings and eccentric cam lobes, the cam nose region between the journal bearing at the driven end of the camshaft and the adjacent cam lobe being cast in the same non-circular shape as the cam lobe but with smaller dimensions. The cam nose and the cam surface of the first cam lobe are then ground. Preferably, the cam lobe surface and the cam nose are ground at the same time as one another by means of a shaped grinding wheel having a cylindrical portion for grinding the cam surface and a narrower contoured portion of larger diameter at one end for grinding the cam nose.

Abstract: A molding method for bicycle metal frame, including the steps of: pouring a fixed amount of molten metal into a reservoir with the relatively light oxide membrane floating on the upper surface of the clean and pure molten metal, the male and female molds being mated to define a bicycle frame mold cavity which is vacuumized through a vacuum path, then by way of high pressure filling, the clean and pure molten metal being filled into the mold cavity through a mold flow way, then the molten metal quickly passing through the mold flow way to flow and distribute over the vacuumized bicycle frame mold cavity and spilling back flow tank defined by the mated male and female molds by way of drawing out the mold core, then, immediately the molten metal being abruptly cooled through several cooling pipelines defined by the mated male and female molds to pattern the molten metal into a bicycle frame with polished surface without pore; demolding the male and female molds to take out the bicycle frame which is blown by win

Abstract: A method of manufacturing a wheel rim for a two-piece vehicle wheel assembly. The method includes the step of casting a one-piece alloy wheel form. The wheel form defines an integrally-formed annular rim blank and supporting center. The rim blank includes opposing first and second annular edge portions. The first annular edge portion of the rim blank is machined, and then the second annular edge portion of the rim blank is machined. After the machining steps, the one-piece wheel form is cut to separate the machined wheel rim from the supporting center.

Abstract: A method of manufacturing a metal and polymeric composite article by the following steps. Droplets of spray deposited metal and spray deposited polymeric material are combined to form an article having the polymeric material interspersed within the metal. A carrier or form that shaped to receive the metal and polymeric layers is provided. The carrier may be made either stationary or movable. Layers of spray deposited metal and spray deposited polymeric material are applied atop the carrier. The spray deposited metal is between 90 and 95 percent by volume of the article. The polymeric layers do not completely cover the metal layers. Succeeding spray deposited metal layers contact bond to previous metal layers. The polymeric material between imbedded between the interconnected metal layers.

Abstract: An improved cast insert for a railway frog has two extensions extending in substantially the same direction away from the body portion of the casting and the end of each of the extensions has a cross sectional profile corresponding to the profile of the head and web of a rail but including only one side of what would normally be the base of a rail. A frog assembly is made by providing such an insert, machining each of two rails to also remove one side of the base near the end of the rail and attaching the machined end of each of the two rails to the end of one of said extensions such that the sides of the rails from which the base has been machined away face one another.

Abstract: A surface processing method by blowing submicron particles is disclosed, in which submicron particles are blown against a surface of a work to deposit a layer of the material of the particles on a surface of the work, or etching the surface of the work.

Abstract: A method of repairing a diametral surface of a mold of the type used in manufacturing glass containers by an I.S. machine, after a repair procedure that causes or can cause an out-of-roundness condition in the diametral surface. The method, which is applicable to the frusto-conical baffle match surface of a parison mold and to a compound cylindrical and frusto-conical bottom plate engaging surface of a blow mold, involves positioning a mold set with its separable semi-circular molds in end to end contact and contacting the diametral surface to be repaired, while the mold set is stationary, with a rotating reaming tool the tips of the removable blades of which define a surface that is complemental to the surface to be repaired.

Abstract: A method of making an oil scraper piston ring includes the following steps of providing a base ring body including a circumferential web having flanks and an outer circumferential surface; galvanically depositing on the web a wear resistant hard chromium layer having solid particles embedded therein; applying a break-off resistant cover layer to the hard chromium layer; and grinding the cover layer to provide the outer circumferential surface of the web with sharp bounding edges

Abstract: A crank arm for a bicycle includes a crank arm body having a pedal attachment hole on a first end thereof and a spindle attachment hole on a second end thereof. The crank arm body defines an elongated interior cavity surrounded by a shell, wherein the interior cavity is open to an exterior of the crank arm body. The opening can be used to access the cavity during and after manufacturing. The shape of the cavity may be varied to produce a lightweight yet strong structure. In the method used to form the crank arm body, a mold core formed by a shell containing a sand-like filler material is positioned into a casting mold so that a melt space is formed around the mold core, molten metal is poured into the casting mold, and the molten metal is solidified to form a crank billet. The filler material may be removed through an opening in the crank billet.

Abstract: A method for producing a seamless metallic belt without a welded line and capable of being easily produced in high accuracy. A seamless belt material 21 having a defined length as a whole is placed on a core 11 and is held in a stretching state on the core 11 thermally expanded by heating, and further, in the above state, an outer circumference of the belt material 21 is cut to a predetermined thickness. The seamless metallic belt 20 is obtained by removing after the core 11 is cooled.

Abstract: A cost-effective process for providing a copper-based alloy casting, which has superior wear characteristics, to a cylinder block is described. The process includes heating the copper-based alloy to a molten state for immersing the cylinder block within such, while promoting the entrained gas within the copper-based alloy to migrate in a given direction and terminate in a specified portion of the copper-based alloy to effectively control porosity. In one form, the process further includes cooling the immersed cylinder block in the given direction to effectively reduce microshrinkage of the copper-based alloy.