A method and casting core for forming a landing for welding a baffle inserted into an airfoil are disclosed, wherein the baffle landing of the blade or vane is formed in investment casting by the casting core rather than by wax, reducing tolerances and variability in the location of the baffle inserted into the cooling cavity of airfoil when the baffle is welded to the baffle landing.

A casting mold includes: an upper mold; a lower mold; a horizontal mold; and a core. The core includes a main body part, and a baseboard part that continues to the main body part. The lower mold includes an accommodation part that accommodates the baseboard part. The casting mold further includes an urging member that urges the baseboard part toward an inner face of the accommodation part.

A hybrid core driving device of an embodiment includes: a cylinder tube; a first cover member at one end of the cylinder tube; a second cover member at the other end thereof; a rod in the cylinder tube, having a connecting portion at one end to be connectable to a core and an annular flange on the side of the second cover member, and penetrating the first cover member; a nut fixed to the rod; a screw shaft penetrating the second cover member and the nut and provided to be insertable into the rod; a motor rotating the screw shaft; a piston in the cylinder tube, allowing the rod to penetrate therethrough, and slidable with respect to the cylinder tube and the rod; and a connection portion connectable to a pipe supplying a hydraulic liquid to a region surrounded by the cylinder tube, the first cover member, and the piston.

A method of forming a casting with a flow passage may include filling a tubular pipe with a filler to form a smart core; inserting the smart core into a mold having a cavity corresponding to a shape of the casting to be formed; injecting a molten metal into the cavity through a casting process; and removing the filler from the smart core, wherein a hardness of the tubular pipe is 70 Hv or more.

A core shooting machine (1) for producing cores by a process of shooting a core sand mixture (21) into at least one cavity (19) in a core box (18), the core shooting machine (1) having a source of compressed air (10) at an adjustable initial machine pressure (P.sub.0), a shooting head (13) fluidically coupled to the source of compressed air (10) by at least one conduit (12) that includes an electronically controlled shot valve (11), the shooting head (13) being configured for containing an amount of the core sand mixture (21), resulting in a filling degree of the shooting head (13), and a computing device (50,60) associated with the core shooting machine (1) and being configured to perform a simulation of the process.

A casting core assembly is disclosed herein. The casting core assembly comprises a casting core and a bumper assembly. The bumper assembly is disposed on an outer surface of the casting core. The bumper assembly comprises a receptacle and a metal apparatus. The metal apparatus may be a pin, a sphere, or the like.

A differential carrier case with an inserted pipe for high pressure casting may include a mold core into which a first end of a pipe is inserted, a mold core pin fixed to the mold core to fix the mold core and the first end of the pipe, a drive core pin inserted into a second end of the pipe, and a thick portion surrounding an outer portion of the pipe.

This piston includes a low thermal conductivity part comprising: a porous member made of a borosilicate glass that has a lower thermal conductivity than the piston base material made of an aluminum alloy material that is the base material impregnated into the porous member. A molded object obtained from a first powder (glass powder) and a second powder (sodium chloride powder) is put in hot water to dissolve away the second powder and form pores in the porous member. The aluminum alloy material is impregnated into these pores to unite the porous member to the piston base material. Furthermore, varnish containing polyimide, etc. is applied to the upper surface of the porous member and impregnated into the pores with a varnish impregnation device assisted by vacuum drawing and atmospheric pressure, thereby preventing the pores from remaining vacant. Due to this, deterioration in exhaust emission performance can be prevented.

A method of providing datum features on a ceramic article including the steps of providing a ceramic member having a plurality of substantially parallel holes extending into the ceramic member. Providing a plurality of tubular mounts, the cross-sectional area of each tubular mount being less than the cross-sectional area of the corresponding hole. Applying adhesive to the exterior surface of each one of the tubular mounts and inserting an adhesive covered tubular mount into each one of the holes. Providing a fixture member having a plurality of substantially parallel projections extending from predetermined positions. Positioning the ceramic member on the fixture member such that each projection locates in one of the tubular mounts and fixes the tubular mounts at the predetermined positions. The ceramic article may be removed from the fixture member or located in a machine tool using the fixture member and machining the ceramic article.

A method for fabricating a cast component with a cooling channel is provided. The method includes forming a shell mold over a pattern-ceramic matrix composite (CMC) elongated core arrangement to define a cavity in the shell mold. The pattern-CMC elongated core arrangement includes a pattern-forming material with a CMC elongated core disposed therein. The pattern-forming material in the cavity is replaced with metal via a casting process to form the cast component with the CMC elongated core disposed therein defining the cooling channel. The CMC elongated core is removed from the cast component to open the cooling channel for fluid communication.