A method of manufacturing a joint flange using a thickness-increased, machined pipe is provided. The method includes a pipe cutting operation in which a pipe is cut to a predetermined length, a flange forming operation in which a flange having a mounting hole for installing the pipe is formed by die casting, a bump-forming operation in which a thickness-increased part, which is formed by increasing a thickness of one end of the pipe, is bumped to form a first bead locked to the flange, a machining operation in which a circumference of the thickness-increased part is machined to form a sealing groove having an O-ring installed, and a fixing operation in which the pipe is inserted in the mounting hole of the flange and the other end of the pipe is pressed to form a second bead so that the pipe is pressed to a lower end of the flange.

A method of making a bullet includes metal injection molding a bullet jacket or preform, and forming the jacket or preform into a bullet.

A molding apparatus for obtaining an annular molded article has a fixed die D1 and a movable die D2 capable of forming an annular cavity C. A first block B1 and a second block B2 are formed inside the cavity C in the fixed and movable dies D1 and D2. The blocks form a flow channel R communicating with the cavity C. Thus, gas generated in the cavity C and a molten metal can flow in the flow channel R. A discharge hole B2b is formed in the second block B2 to discharge the gas flowing in the flow channel R to the outside. A forming surface of the flow channel R, in the first and second blocks B1 and B2, is formed in an outer circumferential shape following an inner circumferential shape of the cavity C.

A method for producing a hollow article made of amorphous metal comprising the steps of: a) providing a metal composition, b) melting the composition according to step a) in order to obtain a melt, c) introducing the melt according to step b) into a cavity of a casting mold, the casting mold comprising an inner core, at least a portion of the lateral surface of the inner core being surrounded by a separation element, d) cooling the melt in the casting mold in order to obtain a molded part made of amorphous metal, e) removing the inner core and the separation element from the molded part according to step d) in order to obtain a hollow article made of amorphous metal. The present invention also relates to a hollow article made of amorphous metal, more particularly to a pipe made of amorphous metal.

A method of casting a casting product having tubular flow passages includes: attaching a cast-in pipe insert, having outer and inner fixing members to which both ends of pipes are coupled, respectively, to a fixed mold; assembling a movable mold with the fixed mold; injecting a molten metal into a cavity defined inside the fixed and movable molds; ejecting a casting product from the assembled molds after injecting the molten metal; and removing the outer and inner fixing members from the casting product.

A slide for the high pressure die casting of at least one closed deck engine block having at least one cylinder is disclosed. The slide includes a tool steel portion with reliefs for forming a water jacket surrounding each cylinder. At least one expendable core is located in each relief, the expendable core having an inner surface and an outer surface with an aperture extending therethrough. The outer surface and inner surface of the expendable core is coextensive with an inner surface and outer surface of the tool steel portion. A method for high pressure die casting a closed deck engine block using the disclosed slide and expendable cores is also disclosed. The expendable cores are separable from the reliefs in the slide, and form bridges or supports across a water jacket to add stiffness and rigidity to the cast engine cylinders.

A casting device includes a bore formation core and a water jacket formation core. When a cavity is formed, gas existing in a space between both cores is suctioned through a flow path formed in the bore formation core under operation of a suctioning device. When the bore formation core is viewed from a side, this flow path exists above a virtual axial line that passes a center of the bore formation core and extends along a longitudinal direction of the bore formation core.

The present disclosure relates to a casting apparatus including a support block, a die provided on one surface of the support block and configured to form a cavity in cooperation with the support block, and an insert member provided to be movable relative to the support block and configured to selectively move between a first position at which the insert member is received in the cavity and a second position at which the insert member is extracted out of the cavity, thereby obtaining an advantageous effect of simplifying a structure and a manufacturing process.

The present disclosure relates to a casting apparatus including a support block, a die provided on one surface of the support block and configured to form a cavity in cooperation with the support block, and an insert member provided to be movable relative to the support block and configured to selectively move between a first position at which the insert member is received in the cavity and a second position at which the insert member is extracted out of the cavity, thereby obtaining an advantageous effect of simplifying a structure and a manufacturing process.

The present disclosure relates to a casting apparatus including a support block, a die provided on one surface of the support block and configured to form a cavity in cooperation with the support block, and an insert member provided to be movable relative to the support block and configured to selectively move between a first position at which the insert member is received in the cavity and a second position at which the insert member is extracted out of the cavity, thereby obtaining an advantageous effect of simplifying a structure and a manufacturing process.