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Group discussions will also provide direction for new capabilities and improvements, best practice methods, and tips and tricks from the experts. The AFGROW team will also provide information on our latest development efforts for the upcoming year.
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Section 10.4.1. Review of manufacturing process and inspections
Three major
items comprise the function of the manufacturing process quality control. They are:
(1)
Definition of inspection requirements
(2)
Demonstration of inspection methods
(3)
Review of manufacturing process and inspections
The basic document for the manufacture of each fracture
critical part is the process specification.
It lists all of the processes that must be performed on the part. This forms the basis for selection of the
inspection methods. Limits for
acceptance are also a part of the process specification. The scheduling of inspections during the
process must be considered. A trade-off
between inspection cost, rework cost, and loss due to scrap must be made. This process may be more critical in a
fracture critical part than in another part since there may not be as many
rework options open. Thus, it may be
more efficient to have more inspections than to risk losing a large amount of
process time. Parts that do not pass an
early inspection may be reclaimed through rework options still available at
this time.
The demonstration of the efficiency of nondestructive process
inspections can be made through destructive testing or through a more rigorous
nondestructive inspection. This
demonstration is made early in the program and may be subject to periodic
checking over the life of the project. As experience is gained with the process, the
inspection frequency may be decreased.
It should be noted that
whenever either new process equipment is installed or inspection equipment
is changed, the inspection procedure should be tightened until confidence is
again attained. This also should
include periodic review of the inspection process to insure that the quality of
the inspection is being maintained.