Process planning determines how a product is to be manufactured and is therefore a key element in the manufacturing process. It plays a major part in determining the cost of components and affects all factory activities, company competitiveness, production planning, production efficiency and product quality. It is a crucial link between design and manufacturing. There are several levels of process planning activities. Early in product engineering and development, process planning is responsible for determining the general method of production. The selected general method of production affects the design constraints. In the last stages of design, the designer has to consider ease of manufacturing in order for it to be economic. The part design data is transferred from engineering to manufacturing and process planners develop the detailed work package for manufacturing a part. Dimensions and tolerances are determined for each stage of processing of the workpiece. Process planning determines the sequence of operations and utilization of machine tools. Cutting tools, fixtures, gauges and other accessory tooling are also specified. Feeds, speeds and other parameters of the metal cutting and forming processes are determined.
Weill / Halevi
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Preface. Introduction. Logical design of a process plan. Geometric interpretation of technical drawings. Dimensioning and tolerancing for production. General selection of primary production processes. Selecting detailed methods of production. Elements of positioning and workholding. How to determine the type of operation. How to select cutting speed. How to select a machine for the job. How to select tools for a job. SPC - statistical process control. Hole-making procedures. Milling operations. Computer-aided process planning (CAPP). Example of a fully-developed process plan. Exercises. Index.
