ENG. RAMI KHALIL
  • Main Page
  • Vision
  • About Eng. Rami Khalil
  • Services
  • Projects
  • Art of Engineering
  • Publications
  • Courses
  • Library
  • Programs
  • Documents
  • Articles
  • Topics Archive
  • Lectures
  • Contributions
  • Contact Us

Additive Manufacturing - Process Cycle:

7/4/2015

0 Comments

 
Several different additive fabrication processes are commercially available or are currently being developed. Each process may use different materials and different techniques for building the layers of a part. However, each process employs the same basic steps, listed below.

1- Create CAD model: for all additive processes, the designer must first use Computer-Aided Design (CAD) software to create a 3D model of the part.

2- Convert CAD model into STL model: each form of CAD software saves the geometric data representing the 3D model in different ways. However, the STL format (initially developed for Stereolithography) has become the standard file format for additive processes. Therefore, CAD files must be converted to this file format. The STL format represents the surfaces of the 3D model as a set of triangles, storing the coordinates for the vertices and normal directions for each triangle.

3- Slice STL model into layers: using specialized software, the user prepares the STL file to be built, first designating the location and orientation of the part in the machine. Part orientation impacts several parameters, including build time, part strength, and accuracy. The software then slices the STL model into very thin layers along the (X,Y) plane. Each layer will be built upon the previous layer, moving upward in the Z direction.

4- Build part one layer at a time: the machine builds the part from the STL model by sequentially forming layers of material on top of previously formed layers. The technique used to build each layer differs greatly amongst the additive process, as does the material being used. Additive processes can use paper, polymers, powdered metals, or metal composites, depending upon the process.

5-Post-processing of part: after being built, the part and any supports are removed from the machine. If the part was fabricated from a photosensitive material, it must be cured to attain full strength. Minor cleaning and surface finishing, such as sanding, coating, or painting, can be performed to improve the part's appearance and durability.

Facebook:

تقنيات التصنيع بالإضافة -|2|- التصنيع بالإضافة - دورة العملية: ---------------------------------------- إن العديد من ع...

Posted by Eng. Rami Khalil on Tuesday, April 7, 2015
0 Comments



Leave a Reply.

    Picture

    Eng. Rami Khalil

    Mechanical Design and Production Engineer.

    Archives

    September 2019
    November 2018
    October 2018
    August 2018
    December 2017
    February 2016
    January 2016
    December 2015
    November 2015
    October 2015
    September 2015
    August 2015
    June 2015
    May 2015
    April 2015

    Categories

    All
    Additive Manufacturing Standardization
    Additive Manufacturing Technologies
    Automation Technologies
    Machine Design
    Manufacturing Technologies
    Mechanics Of Materials
    Metrology

    Facebook:

    Youtube:

    RSS Feed

Services

  • CNC Machine Design
  • Robotic System Design
  • Mechanical Design Services

Eng. Rami Khalil

  • About
  • Vision

Menu

  • Projects
  • Publications
  • Courses
  • Library
  • Programs
  • Documents
  • Articles
  • Topics Archive
  • Lectures
  • ​Contributions

Support

  • Contact Us
  • ​Terms of Use

SOCIAL Media

Facebook
Youtube
COPYRIGHT ©  2023 ENG. RAMI KHLIL.  ALL RIGHTS RESERVED.