Fri, 30 Jul 2010

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Production Engineering The first step in engineering the production system is clearly identifying the problem which is to be solved. Problem definition data will influence how all of the other production engineering function are carried out. This activity is primarily one of gathering and organizing data from a number of different sources. Ultimately data gathered as a part of this activity would be recorded in template forms, imported from other applications, and maintained in a shared database. Critical data which must be identified to initiate the engineering process include : • Product data and key product attributes : product name, part number, model number, description, functionality, product structure (bill of materials), material composition, dimensions, weight, reference drawings, part geometry models, part family or group technology classification codes, technical specifications, reference documents. • Production system and engineering project type : new production system (e.g., plant, line, cell), modification to exiting system (i.e., product or process changes), relocation of system to new site, phaseout of a production system. JIG Design 3D Design Blue Print Copy Plotter Printer • Manufacturing constraints and issues : market forecast and production rates required (minimum, normal and peak production rates in units/hour, units/shift, units/day, units/year), production capacity, level of automation versus manual operation expected, information and control system requirements, target production site, floor space limitations, quality and yield requirements, safety stock requirements, storage availability, known environmental or safety hazards, production plant calendar • Critical milestone dates and schedules : Production ramp up plan, target dates for system requirements specified, system design completed, requests-for-proposals issued, systems installed, testing completed, training completed, system operational, post production support, system phaseout. • Expected or estimated costs : product price, manufacturing cost, system implementation, operating costs.With the exception of critical milestone dates, most of the information outlined above may at some point be used by the next function, i.e., the specification of production and support processes. all data may be used directly by other downstream functions, if appropriate. During the course of the production system engineering process, downstream function may provide feedback suggesting changes to the problem definition data.