Monday, April 11, 2011

Graphic Communication Presentation


Graphics Communication Introduction:


  • Engineering drawing is a language used to relate and communicate ideas between professionals and non-professionals if need be.

  • Learning the language of technical graphics allows you to visualize problems more clearly and use graphic images to find solutions with more ease.

  • Importance of Engineering drawing: Visualization, Communication, & Documentation

  • 92% of the design process is graphically based.

  • Design: process of conceiving or inventing ideas & communicating those ideas to others.

  • It requires input from such areas as customer needs, materials, capital, energy, time requirements, & human knowledge/skills

  • Engineers must fulfill two important aspects of design: Aesthetics and Function

Engineering Design ProcessTraditional Engineering Design:




  • It is a linear approach divided into a number of steps. It moves through each step in a sequential manner; if problem comes up, the process may return to previous step (called iteration or looping)

  • Engineering Design ProcessConcurrent Engineering Design:

  • It is a nonlinear team approach to design that brings together the input, processes, & output elements necessary to produce a product.

  • The people & processes are brought together at the beginning (not typical in linear)

  • Team made up of: design & production engineers, technicians, marketing & finance personnel, planners, & managers.

  • Three activities that make up the concurrent design process are: Ideation, Refinement, & Implementation.


Graphics CommunicationWhat you Will Learn:


Visualization: the ability to mentally control visual information Graphics Theory: geometry and projection techniques Standards: sets of rules that govern how parts are made and technical drawings are represented Conventions: commonly accepted practices and methods used for technical drawings Tools: devices used to create engineering drawings and models, including both hand-held and computer tools Applications: the various uses for technical graphics in engineering design, such as mechanical, electrical, and architectural


Graphics CommunicationTerminology: CAD: Computer Aided Design CADD: Computer Aided Design & Drafting CAM: Computer Aided Manufacturing CIM: Computer Integrated ManufacturingCAE: Computer Assisted Engineering CAPP: Computer-Aided Process Planning MRP: Material Requirement Planning EDM: Enterprise Document/Data Management CAE: Computer Assisted Engineering Blue Print Reading: Interpreting drawings made by others


Engineering DrawingsConventions:



  • Conventions are commonly accepted practices, rules, or methods (i.e.. hidden lines, dimension lines…

  • Most important convention is Alphabet of Lines established by ASME called linestyles

  • Line patterns communicate what the line represents in the drawing

  • Line patterns tell you information such as whether the line is hidden, visible, or a centerline

  • Views should be selected to minimized the use of hidden lines Precedence of lines: Visible à Hidden à Center

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