440 likes | 454 Views
Explore the history, goals, benefits, and drawbacks of production technology in manufacturing systems, including stages of evolution, major components, inputs, support systems, processes, and outputs. Learn about manufacturing engineering principles, tools, and materials handling.
E N D
Characterization of manufacturing (Wright, Ch1-2) • Technology • Production Technology
Production Technology • Manufacturing • Construction • "Processing” • Service? • Other?
Manufacturing = • “systems that transform materials into products in a central location (factory)” (Wright, p.25) <sic.>
Manufacturing = • “A series of interrelated activities and operations that involve product design, and the planning, producing, materials control, quality assurance, management, and marketing of that product” (Biekert, p.348)
Manufacturing = • “Building and servicing products that are not attached to a site”
Manufacturing systems • Systems approaches • List the subsystems of manufacturing
Modeling manufacturing systems • IPO; Universal Systems Model • DPUA • PTUD • Production Technology Cycle (Ritz)
IPO • Input --> Process --> Output • Goals • Feedback
DPUA • Design • Produce • Use • Assess
PTUD • Procurement • Transformation • Utilization • Disposition
Procurement (getting) • Harvesting • Extracting
Transformation (changing) • Separating • Combining • Conditioning • Forming • Casting and Molding • Finishing • Other
Utilization • by industry • by end consumer • reuse
Disposition (getting rid of) • Reusing • Recycling • Storage • Air • Land • Water • Space
"Production Technology Cycle” • Materials Formation • Extraction • Materials Processing (primary) • Transformation (secondary) • Marketing • Servicing • Recovery • (back to Materials Formation)
Benefits of Production Technology • Economic Growth • Employment • Meeting consumer wants • Creating a diversity of products • Product improvement • Other
Drawbacks of Production Technology • Material resource depletion • Energy Depletion • Pollution • Short-Life Products • Materialism (Throw-away attitudes) • Technophobia • Other
The goals of manufacturing • Classic, capitalistic: “To increase the profits of the company” • “To improve the well-being of humans” (Ritz, p.39) • What would be a better goal?
Major Stages in the Evolution of Production Systems • Household (within the home; no surplus) • Handicraft (home or shop; surplus) • Factory (centralized; mass production) • Automated (automated machinery) • Cybernetic (totally controlled by computer) • [What might the next stage be?]
Classification • Lot size • Individual • Batch • Continuous • Specifications • Stock • Custom
Manufacturing contexts • Cultural • Industrial/non-industrial • Economic • Environmental • Other
Manufacturing inputs: People • Legal considerations • Ethical considerations • Labor capabilities
Manufacturing inputs: Information • Product design • Product specifications • Regulatory information • Other
Other manufacturing inputs • Materials • Environment • Tools and equipment • Energy • Environmental considerations • Supply • Finance
Manufacturing support systems • Potential demand • Storage • Transportation • Distribution • Utilities and services
Manufacturing support systems • Information network • Management • Timing • Legal framework • Other
Manufacturing processes • Materials processing review • Energy processing review • Information processing review • Synthesis of processes
Manufacturing outputs • Products • Services • Energy • Information • Waste • Other
Impacts of manufacturing • Effect on the consumer • Culture and society • Effect on the worker • Environmental impacts • Other
Manufacturing Engineering (ME) • Purpose • Responsibilities • Coordination • A variety of approaches • Personnel • Training
ME: Principles 1 • Precision • Accuracy (stop watch exercise) • Tolerance • Contamination • Standardization and Interchangeability
ME: Principles 2 • Continuity • Redundancy • Synchronization • Efficiency • Flexibility • Experimentation and Testing
ME: Facility • Siting • Transportation • Storage • Legal • Proximity • Technical requirements • Utilities and Access • Design • Implementation
ME: Quality Assurance • Purpose • Total quality management • Inspection and sampling • Statistical process control
ME: Equipment • Tools and Machinery • Tooling • Materials Handling • Safety • Testing and Measuring • Other
ME: Common Types of Tooling • Jigs & fixtures • Patterns & templates • Gages • Other
ME: Concepts in Tooling • Registration • Accumulation of tolerances • Effects of wear and fatigue • Vectors • Chip removal • Other
ME: Tooling • Purpose • Design • Installation • Evaluation • Maintenance • Alternatives
ME: Materials Handling Engineering • Storage • Transport • Inventory • Safety
ME: Transport Equipment • Gravity Fed • Hoppers • Tubes and Rails • Pressurized • Pipelines • Motorized • Conveyors • Lifts • AGVs
ME: Inventory • Parameters • Tracking systems
ME: Impacts of Manufacturing on Design • Design for Manufacture • Design for Assembly • Rapid Prototyping • Near Net Shape Processing • Other
ME: Workstation Design • Human Requirements • Physical Needs • Anthropometrics and Limitations • Ergonomics • Worker Safety • Special needs • Social and Psychological Needs
ME: Maintenance Engineering • Scheduled maintenance • Unscheduled maintenance • Scheduled upgrades • Service contracts