It is indeed quite interesting to note that, it is just of recent that manufacturers resolved an aspect of quality control that highlights the fact that, the outcome of a manufactured machine part is dependent mainly on the technological process conditions and the type of the manufacturing surface-finish methods.
Researchers have shown that many of the surface quality parameters of machine parts are formed not only during the surface finish operations of a manufacturing process but also during its initial and throughout the development operations, thereby creating a sustainable opportunity for maximum achievable reliability of component. The desired surface quality parameters that are formed early in the process needs to be sustained till the final surface finish, as the development operations help to transfer the quality parameters from one process to another in such a way that, the undesired negative traits are eliminated, while the positive desired quality characteristics are sustained to achieve maximum reliability. The transference and sustenance of the positive desired qualities of components and the elimination of the undesired qualities (defects) is possible with the use of technological inheritance technique.
Technological Inheritance is defined as the transference of component properties (e.g quality, defect and failure characteristics) from its initial operation to the final operation in a technological process, which in turns influences the service operation (plants, processes, parts, equipments and instruments) and the lifetime of components/systems.
At this point, it is worthy to note that inheritance is the process by which one object can acquire the properties of another object. This is important because it supports the concept of hierarchical classification. If you think about it, most knowledge is made manageable by hierarchical (that is, top-down) classifications. Without the use of hierarchies, each object would have to explicitly define all of its characteristics. Using technological inheritance technique, an object needs only to define those properties that make it unique within its class (e.g the machine part reliability, quality, defect, failure mode, and others). It can inherit its general attributes from its parent part and base material. Thus, it is the inheritance mechanism (e.g reliability inheritance mechanism or distribution) that makes it possible for one object to be a specific instance of a more general case and structure. Technological Inheritance Technique will therefore be considered in this blog to measure component/system reliability growth, degradation, life cycle cost and life-time
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