Degrease Inputs

The Degrease process provides the following PSOs:

• Number of parts that can fit across conveyor entrance

Speed of conveyor

By default, conveyor speed is the fraction of Conveyor Speed Limit specified by the cost model variable conveyorSpeedRateRatio (0.1 I aPriori starting point VPEs). You can override the default and specify the speed explicitly. Select one of the following options:

• Default: calculated by aPriori

• User Override: enter a value in mm/sec.

Number of parts that can fit across conveyor entrance

By default, the number of parts at a time that are assumed to pass through the entrance is the maximum number that satisfies both size and weight constraints. The size constraints are determined by the following factors:

• Smaller two of the three part dimensions (the longest dimension is assumed to be aligned with the length of the conveyor belt)

• Machine property Conveyor Window Height

• Machine property Conveyor Window Width

• Machine property Conveyor Spacing Factor: the fraction of tightly packed parts that can fit when parts are spaced appropriately. Consider, in other words, the number of parts that can fit when the parts are tightly packed, with no space between them; this factor times that number of parts is the number of parts that can fit when the parts are spaced appropriately.

The weight constraints are determined by the following factors:

• Number of parts per window (product of the number of parts per row—part length divided by Conveyor Window Length—and the number of parts in entrance)

• Part mass (part volume times material density)

• Machine property Conveyor Weight Limit

You can override the default and specify the number explicitly. Select one of the following:

• Default: calculated by aPriori.

• User Override: enter a value greater than or equal to1.

Brand of degreaser

Degreaser brand affects solvent costs (see Degrease Additional Direct Costs. The default brand is the one with the lowest cost per gallon, as specified in the lookup table degreaseSolvent. You can override the default and specify a brand. Select one of the following options:

• Default: lowest price brand

• User Override: select a brand.

Price of solvent

Degreaser price affects solvent costs (see Degrease Additional Direct Costs. The default price per gallon for a given brand is specified in the lookup table degreaseSolvent. You can override the default and specify a price. Select one of the following options:

• Default: price specified in lookup table degreaseSolvent.

• Price of Solvent: enter the price per gallon.

Solvent Dilution Ratio

Solvent dilution ratio, the fraction of water volume consisting of solvent, affects solvent costs (see Degrease Additional Direct Costs. The default dilution ratio is specified by the cost model variable degreaseSolventRatio (0.15 in aPriori starting point VPEs). You can override the default and specify a dilution ratio explicitly. Select one of the following options:

• Default: value of the cost model variable degreaseSolventRatio (0.15 in aPriori starting point VPEs).

• User Override: enter a value between 0 and 1.