The Control Plan
With the control plan, the user creates the basis for a trouble-free product development process. It is therefore important that both the DFMEA and the PFMEA are error-free. To ensure this, the FMEAs are analyzed for errors before being summarized in the control plan.
For the FMEA analysis, it is necessary that the elements of the product creation process are examined with regard to their function. For example, what should the injection molding machine do, what/how is my assumption? How should the plastic granulate be used? In this step, the user determines in the e1ns.methods module which temperature should be used for melting the plastic granulate. Furthermore, more than one specification can be assigned to the individual functions here.
The work steps (functions) that ensure a smooth production process are also specified to the worker during the analysis. He must fill in the granulate and set the corresponding program for the machine. Here too, several specifications can be added to each function in e1ns.methods.
If you now take a step back into the e1ns.architect module, you can see clearly that the housing and the injection molding process have been linked. If the user of the FMEA software now checks in which work step errors can occur, he must not ignore the function of the injection molding machine. This could be, for example, that an incorrect temperature has been entered for the melting of the granulate. The worker may also assume an incorrect value when setting the cooling time. All these possible errors can be linked here accordingly.
A major advantage offered by e1ns is the creation of template copies. This means that the process steps that have already been considered for one component can be copied for the process of another component, provided that the failure modes and causes are similar.
You can now go to the FMEA and see the following in the overview:
- Higher and lower-level functions
- Design specifications
- Process specifications
- Failure consequences and causes incl. B values from design FMEA
Once the errors have been identified, the prevention measures for eliminating errors can now be developed and stored in the overview together with individual detection measures.
In doing so, he can benefit from the advantages of the FMEA software solution e1ns. To create the control plan (CP), the user uses the process configurator, which compiles all process characteristics, process elements, machines and product elements in the correct order. At this point, it is possible to decide which elements should be included in the CP and PFC (per step).