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Feature-Based Design

The consept of feature-based design was advanced as an attempt to simplify mechanical process design as an extension of CAD. In this approach, a mechanical design consists of a collection of standard geometric features, accompanied by standard processes to create these features. The list of such features includes prismatic shapes, cylinders, cones, slots, holes, rounds, fillets, etc. The potential of this approach was found to be limited since in many situations it is difficult, if not impossible, to describe a mechanical design in terms of a limited set of standard geometric features.
(Dorf, R.C., Kusiak, A., Handbook of Design, Manufacturing and Automation, 1994, John Wiley & Sons, Inc.,pg. 124-125)

Generative Process Planning (GPP)

GENPLAN is an acronym for GENerative process PLANning system, developed ar Lockheed, Georgia (Tulkoff, 1981). It is one of the most sophisticated generative systems. It uses a Group Technology-based coding scheme that covers both part geometry and process variables to generate comprehensive operations. GENPLAN is oriented towards a spesific environment. The initial GENPLAN was developed in 1976 based on CAM-I's CAPP system. At present, it has been split into two parts, Fabrication GENPLAN and Assembly GENPLAN. GENPLAN is being integrated with other companies's systems to increase the efficiency of the enterprise, such as interfacing it with a management decision support system, an automatic shop loading and scheduling system, and a tool order processing and accountability system.
(Zhang, H-C, Alting, L., Computerized manufacturing process planning systems, 1994,Chapman & Hall,1st Edition, pg. 210-211)

Inspection Planning

A popular manufacturing development is error free six-sigma manufacturing which seeks to ensure that bad parts are almost never produces. Part inspection is vital for this goal not only to discard bad parts but also to provide closed loop control on the quality of the products beibg produced. Consequently, inspection planning is treated as an integral part of manufacturing planning. Several research problems remain unresolved in inspection planning. To decide which problem to concentrate on, it should focus on the product characteristics with the greatest influence on a product's performance. At the same time, it should avoid the cost of inspecting characteristics with little significance. Inspection planning is deeply involved with such product modelling issues as representations of dimensions and tolerances, assembly relationships, and finally, with functions and behaviours of physical configurations.
(Nasr, E.A., Kamrani, A.K., Computer-based design and manufacturing: an information-based approach, 2007, Springer, pg.77)

Annealing

Glass products usually have undesirable şnternal stresses after forming, which reduce their strength. Annealing is done to retrieve these stresses; the treatment therefore has the same function in glassworking as it does in metalworking. Annealing involves heating the glass to an elevated temperature and holding it for a certain period to eliminate stresses and temperature gradients; then slowly cooling the glass to supress stress formation, followed by more rapid cooling to room temperatyre. Common annealing temperatures are around 500°C (900°F). The lenght of time product is held at the temperature, as well as the heating and cooling rates during the cycle, depend on thickness of the glass, the usual rule being that the required annealing time varies with the square of thickness.

Annealing in modern glass factories is performed in tunnel-like furnaces, called lehrs, in which the produxtss flow slowly through the hot chamber on conveyors. Burners are located only at the front end of the chamber, so that the glass experiences the required heating and cooling cycle.

(Groover, M.P., Fundamentals of modern manufacturing : materials, processes, and systems, Wiley Internatiol, 2002, 2nd Edition, pg. 253)