New-Design Control:
New-design control involves the establishment and spesification of the necessary cost-quality, performance-quality, safety-quality, and reliability-quality for the product required for the intended customer satisfaction, including the elimination or location of possible sources of quality troubles before the start of formal production.
Techniques used in new-design control include analysis of product function, quality research, enviromental and end-use tests, classification of quality characteristics, establishment of quality levels and quality standarts, process-capability studies, tolerance analysis, quality-ability analysis, failure mode and effect analysis, design review, log of prototype inputs, prototype tests, establishment of process parameters, product evaluation, safety studies, manufacturing-process review, establishment of reliability standarts, development of maintainability and service-ability standarts, and pilot runs.
(Total Quality Control, Armand V. Feigenbaum Page 65,67)
Incoming-Material Control:
Incoming-material control involves the receiving and stocking, at the most economical levels of quality, of only those parts whose quality conforms to the spesification requirements, with emphasis upon the fullest practical vendor responsibility.
There are three phases in incoming-material control:
1. Establishment of vendor-oriented survey, responsibility, and surveillance
2. Control on materials and and parts received from outside sources
3. Control on materials and parts processed by other plants of the same company or other division of the plant
Techniques used in incoming-material control include vendor capability evaluations; vendor rating plans; vendor certification of material, parts, and component quality; clear delineation of quality requirements; inspection and test procedures, including use of gages, standarts, and specialized quality information equipment; selection of economical sampling plans for use at specified levels of quality; and measurement of inspection performance.
(Total Quality Control, Armand V. Feigenbaum Page 67)
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