Tool Breakdown Component-level Operation

This operation models moving the part and tooling into the work cell, removing the vacuum bag, removing the part from the tool, and moving the empty tooling out of the work cell. This is an operation of the Bench Operation Process.

Cycle time is given by the formula below.

Cycle Time =

(Labor Dependent Process Time / Number of Operators) +

Labor Independent Process Time

Cycle time depends on the following:

• Labor-dependent process time: see formula.

• Number of operators: by default this is specified by the machine property Number of Operators. Users can override the default with the setup option Number of Operators.

• Labor-independent process time: this is the time to move the part to the work cell. See the formula for Part Handling Time, below.

Labor Dependent Process Time = Part External Perimeter / Vacuum Bag Removal Rate

This is the time to remove the vacuum bag. It depends on the following:

• Part external perimeter: this is the length of the part’s contours, excluding internal contours. It is specified by the geometric property External Perimeter.

• Vacuum bag removal rate: this is the rate in distance per unit time at which the edge of the vacuum bag is removed. It is specified by the cost model variable vacuumBagRemovalRate (300mm/sec in starting point VPEs).

Part Handling Time =

Tool Load Time + Part Removal Time + Tool Unload Time

Labor-independent process time is the sum of the following:

• Tool load time: looked up by tool length and tool width in the Tool Handling Time column of the lookup table tblHandlingTimes. Tool length and width is estimated based on part length--see Tool Length, Width, and Area.

• Part removal time: by default, this is looked up by part Length and Width in the Part Handling Time column of the lookup table tblHandlingTimes. Users can override the default on a per-part basis with the setup option Part Removal Time.

• Tool unload time: this is the same as tool load time.