First of all, your company determines what, in your company and its processes, are "Special Processes". For example, two companies may both have welding as one of its processes. Note that I say YOUR COMPANY DECIDES what its special processes are. A very good example is Special Process Suppliers - It is about special process suppliers, but it shows what processes Cessna (in this case) have defined as special processes related to their product parts. Once the parts have been installed on an airplane it typically takes destructive testing to validate that the process was effective - Which isn't realistic.
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I also highly recommend reading Don Brecken's article from around 2009: http://asq1001.org/papers/Identifying Special Processes.pdf
Also consider: Definition of Special Process - IADC Lexicon
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- In Company 1 they weld a small widget which holds a shelf up in a small, short book stand. They would probably not consider welding a "special process". Failure woud not cause serious injury. Risk factor is low.
- Company 2 welds motor bike frames. The risk factor for serious injury or death if any of their welds fail. They would definitely consider welding, in their scenario, a "special process". Extremely high risk factor.
I also highly recommend reading Don Brecken's article from around 2009: http://asq1001.org/papers/Identifying Special Processes.pdf
Also consider: Definition of Special Process - IADC Lexicon
I think a key point in this is, the customer requirement.
If needs long lasting, weather resistant , ok I,ll apply the clause.
If the need is just label within certain dimensions and color, ok for that, don't need destructive testings, and as such , I indeed really can verify product and clause is not applicable., is it ok my idea?
On the other hand, in a work shop where is manufactured steel sheet equipment, like bins, pressure vessels, steel supports, and in all of them , the welding is used to joint parts.
Such processes have to be declared applicable?
Thanks
But what do customer have to ask us regarding equipment as for us to decide if is special process?