A composite casting system for manufacturing a heterogeneous material casting product may include a fixed mold; a movable mold for opening or closing one side of the fixed mold; a slide core pin provided inside the fixed mold or the movable mold, and capable of being protruded to a cavity side, which is formed by a combination of the fixed mold and the movable mold, from the inside of the fixed mold or the movable mold; a high-pressure casting device for injecting high-pressure casting molten metal into the cavity; and a gravity casting device for injecting gravity casting molten metal through a gravity casting hole formed on the fixed mold or the movable mold.

A gas turbine engine according to an example of the present disclosure includes, among other things, a rotor and a vane spaced axially from the rotor, and a blade outer air seal spaced radially from the rotor. At least one of the rotor and the vane includes an airfoil section extending from a platform. At least one of the airfoil section, the platform and the blade outer air seal includes a first cavity extending in a first direction, the first cavity defining a reference plane along a parting line formed by a casting die, and a plurality of trip strips including a first set of trip strips distributed in the first direction along a surface of the first cavity and on a first side of the reference plane, each of the plurality of trip strips defining a respective groove axis extending longitudinally between a first end and an opposed, second end of a respective one the plurality of trip strips, and the groove axes being oriented with respect to a pull direction of the casting die. A casting core and method for fabricating a gas turbine engine component is also disclosed.

A gas turbine engine according to an example of the present disclosure includes, among other things, a rotor and a vane spaced axially from the rotor, and a blade outer air seal spaced radially from the rotor. At least one of the rotor and the vane includes an airfoil section extending from a platform. At least one of the airfoil section, the platform and the blade outer air seal includes a first cavity extending in a first direction, the first cavity defining a reference plane along a parting line formed by a casting die, and a plurality of trip strips including a first set of trip strips distributed in the first direction along a surface of the first cavity and on a first side of the reference plane, each of the plurality of trip strips defining a respective groove axis extending longitudinally between a first end and an opposed, second end of a respective one the plurality of trip strips, and the groove axes being oriented with respect to a pull direction of the casting die. A casting core and method for fabricating a gas turbine engine component is also disclosed.

A method for synthesizing parts using a die comprising: providing a three-dimensional model; converting the three-dimensional model into G-code; executing the G-code to deposit a metal die; determining whether one or more dimensions of the metal die are within predetermined tolerance levels; based on the determination, milling the die if the one or more dimensions are not within predetermined tolerance levels or depositing additional metal if the one or more dimensions are not within predetermined tolerance levels; and synthesizing a part using the metal die.

A method for synthesizing parts using a die comprising: providing a three-dimensional model; converting the three-dimensional model into G-code; executing the G-code to deposit a metal die; determining whether one or more dimensions of the metal die are within predetermined tolerance levels; based on the determination, milling the die if the one or more dimensions are not within predetermined tolerance levels or depositing additional metal if the one or more dimensions are not within predetermined tolerance levels; and synthesizing a part using the metal die.

The mold steel according to the present invention contains 0.35<C<0.55 mass %, 0.003≤Si<0.300 mass %, 0.30<Mn<1.50 mass %, 2.00≤Cr<3.50 mass %, 0.003≤Cu<1.200 mass %, 0.003≤Ni<1.380 mass %, 0.50<Mo<3.29 mass %, 0.55<V<1.13 mass %, and 0.0002≤N<0.1200 mass %, with a balance being Fe and unavoidable impurities, and satisfies 0.55<Cu+Ni+Mo<3.29 mass %, and the molding tool according to the present invention contains a mold and/or a mold component formed of the mold steel.

A method is for positioning a hollow workpiece obtained by casting and that enables the workpiece obtained in this way to be machined in accurate manner. The workpiece is obtained by a casting method involving a mold and a sacrificial core inserted inside the mold and serving to form at least one cavity in the workpiece. The workpiece includes surfaces of a first type defined during casting by the surfaces of the mold, and surfaces of a second type defined during casting by the surfaces of the core. A frame of reference for positioning the workpiece is constructed that includes at least three reference points (P1-P3) belonging to surfaces of the second type of the workpiece.

The present application provides a hot-work die steel and a preparation method thereof, wherein the chemical constituents of the hot-work die steel in mass percentage are as follows: C: 0.20-0.32 wt %, Si: ≤0.5 wt %, Mn: ≤0.5 wt %, Cr: 1.5-2.8 wt %, Mo: 1.5-2.5 wt %, W: 0.5-1.2 wt %, Ni: 0.5-1.6 wt %, V: 0.15-0.7 wt %, Nb: 0.01-0.1 wt %, and a balance of iron, wherein an alloying degree is 5-7%; a tensile strength of the hot-work die steel at 700° C. is 560-700 MPa; a value of hardness of the hot-work die steel at room temperature is 32-38 HRC after holding at 700° C. for 3-5 h; and the hot-work die steel has an elongation of 14% to 16% at room temperature, a percentage reduction of area of 48% to 65%, and an impact toughness of 52-63 J at room temperature. The hot-work die steel of the present application has an excellent thermal stability as well as a good plasticity and a toughness at room temperature.

The present invention relates to a casting mold for casting components. The casting mold comprises at least one casting mold frame made of metal and/or of an alloy, and also one or more ceramic casting mold inserts introduced into the at least one casting mold frame. The casting mold insert or the casting mold inserts has/have the negative contour or part of the negative contour of a component to be produced or of the combination of a component to be produced with one or more casting cores. The present invention also relates to a method for producing the casting mold according to the invention and to the use of the casting mold according to the invention.

A casting apparatus according to the present disclosure includes an upper frame, a lower frame, a main link member, a sub-link member and a lifting/lowering mechanism. The upper mold is attached to the upper frame. The lower frame is disposed in parallel with the upper frame. The lower mold is attached to the lower frame. A top end part of the main link member is rotatably connected to the upper frame and a bottom end part thereof is rotatably connected to the lower frame. The sub-link member is disposed in parallel with the main link member, the top end part thereof is rotatably connected to the upper frame and the bottom end part thereof is rotatably connected to the lower frame. The lifting/lowering mechanism causes the sub-link member to lift or lower with respect to the main link member.