D.2.2 Combined Process

On the most abstract level, everything, except the atomic process, is just grouping operations together in different ways in many different layers when assembling a product. This requires a flexible model for different customer needs with respect to process control.

A combined process can be any of the following:

A “Job” is a collection of sub-processes which could also include a sub-job.

A “Batch Process” is a “Job” where all the operations are atomic and use the same joining program, and the operations are executed sequentially.

Example: The process of sequential assembly of two or more joints using the same program.

A “Synchronized Process (Sync)” is a “Job” where all the operations are executed in parallel by separate tools (spindles).

Example: In a fixtured system which consists of multiple spindles, the PLC sends a synchronized process to the Joining Process Controller to manage which spindles should run. When the execution is completed, then a combined result is sent back to the PLC.

A “Stitching Process” is a “Job” where several “Synchronized Processes” are done in a sequence.