Core Splicing Operation for Hand Layup

Core splicing is a labor-dependent task (see Labor-dependent and Labor-independent Tasks).

Labor Dependent Process Time =

Core Splice Length / Core Splice Rate / Number of Part’s Cores

This is the time required for any core splicing. Core splicing is required when a core must be formed by splicing together two or more other cores (which may not be individually modeled in CAD). Splicing uses foaming adhesive to form butt joints. The total length of these joints for the whole part is specified by the setup option Total Length of Honeycomb Core Splicing, which is set to 0 by default in starting point VPEs. The time to perform splicing on the current core is estimated as the time required for splicing for the whole part, amortized over the part’s total number of cores.

Core splicing time depends on the following:

• Core splice length: this is the total length of the butt joints formed by core splicing for the whole part. By default in starting point VPEs, this is assumed to be 0. Administrators can customize the default with the cost model variable defaultCoreSpliceLength. Users can override the default on a per-part basis with the setup option Total Length of Honeycomb Core Splicing.

• Core splice rate: the rate at which foaming adhesive is applied during splicing, specified by the cost model variable coreSpliceRate (0.1 meters per second in starting point VPEs)

• Number of part’s cores: this is the total number of Core GCDs in the part.

Splicing Material Cost =

(Splicing Material Unit Cost * Total Splicing Material Required) /

Number of Part’s Cores

This is the cost per core for splicing material (foaming adhesive), which is estimated as the cost of the splicing material required for the whole part, amortized over the part’s total number of cores.

Splicing material cost per core depends on the following:

• Splicing material unit cost: this is the cost per unit length of the splicing material, specified by the tool shop variable Cost Per Length Foaming Adhesive Tape.

• Total splicing material required: this is the length of splicing material required for the whole part. It is the same as the total length of the butt joints formed by core splicing for the whole part. By default in starting point VPEs, this is assumed to be 0. Administrators can customize the default with the cost model variable defaultCoreSpliceLength. Users can override the default on a per-part basis with the setup option Total Length of Honeycomb Core Splicing.

• Number of part’s cores: this is the total number of Core GCDs in the part.