词条 | Digital manufacturing |
释义 |
Digital Manufacturing is an integrated approach to manufacturing that is centered around a computer system. The transition to digital manufacturing has become more popular with the rise in the quantity and quality of computer systems in manufacturing plants. As more automated tools have become used in manufacturing plants it has become necessary to model, simulate, and analyze all of the machines, tooling, and input materials in order to optimize the manufacturing process.[1] Overall, digital manufacturing can be seen sharing the same goals as computer-integrated manufacturing (CIM), flexible manufacturing, lean manufacturing, and design for manufacturability (DFM). The main difference is that digital manufacturing was evolved for use in the computerized world. Three dimensional modelingManufacturing engineers use 3D modeling software to design the tools and machinery necessary for their intended applications. The software allows them to design the factory floor layout and the production flow. This technique lets engineers analyze the current manufacturing processes and allows them to search for ways to increase efficiency in production before production even begins. SimulationSimulation can be used to model and test a system's behavior. Simulation also provides engineers with a tool for inexpensive, fast, and secure analysis to test how changes in a system can affect the performance of that system.[2]These models can be classified into the following:[2]
Applications of simulation can be assigned to:[2]
AnalysisDigital manufacturing systems often incorporate optimization capabilities to reduce time, cost, and improve the efficiency of most processes. These systems improve optimization of floor schedules, production planning, and decision making. The system analyzes feedback from production, such as deviations or problems in the manufacturing system, and generates solutions for handling them.[3] In addition, many technologies analyze data from simulations in order to calculate a design that is optimal before it is even built.[4] Tooling and processesThere are many different tooling processes that digital manufacturing utilizes. However, every digital manufacturing process involves the use of computerized numerical controlled machines (CNC). This technology is crucial in digital manufacturing as it not only enables mass production and flexibility, but it also provides a link between a CAD model and production.[5] The two primary categories of CNC tooling are additive and subtractive. Major strides in additive manufacturing have come about recently and are at the forefront of digital manufacturing. These processes allow machines to address every element of a part no matter the complexity of its shape.[3] Examples of additive tooling and processes
Examples of subtractive tooling and processes
Benefits
TypesOn demand
Cloud-based design and manufacturingCloud-Based Design (CBD) refers to a model that incorporates social network sites, cloud computing, and other web technologies to aid in cloud design services. This type of system must be cloud computing-based, be accessible from mobile devices, and must be able to manage complex information. Autodesk Fusion 360 is an example CBD.[11] Cloud-Based Manufacturing (CBM) refers to a model that utilizes the access to open information from various resources to develop reconfigurable production lines to improve efficiency, reduce costs, and improve response to customer needs.[11] References1. ^1 2 3 {{Cite web | url=http://www.plm.automation.siemens.com/en_us/plm/digital-manufacturing.shtml | title=PLM−Product Lifecycle Management}} 2. ^1 2 {{Cite journal|url = |title = The role of simulation in digital manufacturing: applications and outlook|last = Mourtzis|first = Dimitris|date = 2015|journal = International Journal of Computer Integrated Manufacturing|doi = |pmid = |access-date = }} 3. ^1 {{Cite journal|last=Bredt|first=James|date=November 17, 2000|title=Digital manufacturing|url=|journal=Critical Technologies for the Future of Computing |volume=150|doi=|pmid=|access-date=}} 4. ^https://www.parc.com/services/focus-area/manufacturing/ 5. ^{{Cite journal|last=Chryssolouris|first=G|date=June 20, 2008|title=Digital manufacturing: History, perspectives, and outlook|url=|journal=Journal of Engineering Manufacture|doi=|pmid=|access-date=}} 6. ^1 2 {{cite book|last=Lee |first=Kunwoo |title=Principles of CAD/CAM/CAE Systems |location= Reading, MA |publisher= Addison-Wesley |year=1999}} 7. ^{{Cite journal|url = |title = Additive manufacturing and its societal impact: a literature review|first = Samuel|date = July 2013|journal = International Journal of Advanced Manufacturing Technology|doi = |pmid = |access-date = |last = Huang}} 8. ^{{Cite journal|url = |title = Digital additive manufacturing: From rapid prototyping to rapid manufacturing|last = Hon|first = K.K.B|date = July 1, 2007|journal = Proceedings of the 35th International MATADOR 2007 Conference|doi = |pmid = |access-date = }} 9. ^{{Cite web | url=http://www.brookings.edu/research/articles/2011/10/10-digital-manufacturing-singer |title = Direct Digital Manufacturing: The Industrial Game-Changer You've Never Heard of|date = 2001-11-30}} 10. ^{{Cite journal|url = |title = Rapid Prototyping and Manufacturing Technology: Principle, Representative Technics, Applications, and Development Trends|last = Yan|first = Yongnian|date = June 2009|journal = Tsinghua Science and Technology |volume=14|doi = |pmid = |access-date = }} 11. ^1 {{Cite journal |doi = 10.1016/j.cad.2014.07.006|title = Cloud-based design and manufacturing: A new paradigm in digital manufacturing and design innovation|journal = Computer-Aided Design|volume = 59|pages = 1–14|year = 2015|last1 = Wu|first1 = Dazhong|last2 = Rosen|first2 = David W.|last3 = Wang|first3 = Lihui|last4 = Schaefer|first4 = Dirk}} 1 : Digital manufacturing |
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