The invention relates to a method for determining the position of the cores in an injection mould, comprising the steps essentially consisting of: selecting a core R.sub.rep in a population of cores with the least difference from the mean of the measured differences between k cores and the theoretical three-dimensional spatial model, positioning this core R.sub.rep in space relative to at least one of the functional faces of a theoretical three-dimensional spatial model of the core, and repositioning core support points so that they can support the core R.sub.rep in the position corresponding to its repositioning in space performed in the previous step.

The invention relates to a method for determining the position of the cores in an injection mould, comprising the steps essentially consisting of: selecting a core R.sub.rep in a population of cores with the least difference from the mean of the measured differences between k cores and the theoretical three-dimensional spatial model, positioning this core R.sub.rep in space relative to at least one of the functional faces of a theoretical three-dimensional spatial model of the core, and repositioning core support points so that they can support the core R.sub.rep in the position corresponding to its repositioning in space performed in the previous step.

The invention provides a method of assembling together a first core (12) and a second core (14) in order to make a non-permanent model configured for use in lost wax molding to form a part having a first cavity and a second cavity corresponding respectively to the first core and to the second core.

The invention is characterized by the fact that the first and second cores (12, 14) are assembled together with a first spacer (20), the first spacer (20) being arranged between the first and second cores.

The invention provides a method of assembling together a first core (12) and a second core (14) in order to make a non-permanent model configured for use in lost wax molding to form a part having a first cavity and a second cavity corresponding respectively to the first core and to the second core.

The invention is characterized by the fact that the first and second cores (12, 14) are assembled together with a first spacer (20), the first spacer (20) being arranged between the first and second cores.

A core assembly for a casting system according to an exemplary aspect of the present disclosure includes, among other things, a core that includes a body and at least one hole formed through the body and a spacer that extends through the at least one hole. The spacer includes a stud portion and a chaplet portion configured to abut a surface of the body that circumscribes the at least one hole.

A core assembly for a casting system according to an exemplary aspect of the present disclosure includes, among other things, a core that includes a body and at least one hole formed through the body and a spacer that extends through the at least one hole. The spacer includes a stud portion and a chaplet portion configured to abut a surface of the body that circumscribes the at least one hole.

A core assembly for a casting system according to an exemplary aspect of the present disclosure includes, among other things, a core that includes a body and at least one hole formed through the body and a spacer that extends through the at least one hole. The spacer includes a stud portion and a chaplet portion configured to abut a surface of the body that circumscribes the at least one hole.

A core assembly for a casting system according to an exemplary aspect of the present disclosure includes, among other things, a core that includes a body and at least one hole formed through the body and a spacer that extends through the at least one hole. The spacer includes a stud portion and a chaplet portion configured to abut a surface of the body that circumscribes the at least one hole.

A side frame may include a bolster opening configured to receive an outbound portion of a bolster. A center core may be used during the manufacture of the side frame to form the bolster opening. The center core may include first and second side walls configured to form the first and second side frame columns of the bolster opening. Additionally, each of the first side wall and second side wall may include one or more pin core holes each of which is configured to receive a pin core used in forming the fastening holes of the first and second side frame columns.

A side frame may include a bolster opening configured to receive an outbound portion of a bolster. A center core may be used during the manufacture of the side frame to form the bolster opening. The center core may include first and second side walls configured to form the first and second side frame columns of the bolster opening. Additionally, each of the first side wall and second side wall may include one or more pin core holes each of which is configured to receive a pin core used in forming the fastening holes of the first and second side frame columns.