Manufacturing Process Model

Tool cycles are created within operations using part geometry and machine tool model information. Tool paths are checked by 

CHAPTER 6 Finite Eiement and Manufacturing Process Modeis 

fixture, manufacturing process, and tool path models can be associative in advanced systems. Part and blank geometry changes make associated tool paths ineffective or tool paths are updated in response to part geometry changes. The effects of changes in part and blank design on fixtures and other accessories are handled similarly. 

Rapid prototyping through stereolithography (STL) or other processes needs special shape information in the form of layers. The boundary of the shape of the part is processed by special methods, such as approximation by triangles. Control equipment for rapid prototyping receives geometry in standard STL format. The part model is translated into STL. All geometric 

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CHAPTER 6 Rnite Element and Manufacturing Process Models... 

Setup and operation part manufacturing process model entities are created and captured in the process model mainly manually, with minor but important computer assistance. Some process planning activities, such as selection of machine tools, configuration of setups, selection of cutting tools, and sequencing of operations are assisted by automatic computer procedures in advanced systems. Some of the automatic functions for machining are ... 

Modification of a part model is associative with assembly modeling, analysis, and the manufacturing process model. 

Toyota Production System (TPS) A manufacturing process model developed by Toyota that contributed to reputation for quality in the auto industry. The Toyota Production System was built on three key factors that differentiated it from practices being employed by their competitors in the auto industry (1) reduced lot sizes, leading to production flexibility (2) controlling parts required in production to enable them to be provided when and where they are needed for specific tasks (3) arranging production equipment in the order that people work and value is added instead of grouping by equipment function. All these elements involved suppliers and customers to some extent. 

Mantell, S. C. and Springer, G. S., Manufacturing process models for thermoplastic composites , /oMTTia/ of Composite Materials, 1992, 26(16), 2348. 

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