3 d printingprocessin fdmprocess trc.pptx

3d printing

1. 3D Printing

2. 3. 3D Printing OBJECTIVE: To produce a part using 3D printing technique.

3. Contents History What is 3D Printing Working process Types of 3D Printing methods Advantages Limitations Applications Conclusions

4. History The first documented iterations of 3D printing can be traced back to  the early 1980s  in Japan. In 1981, Hideo Kodama was trying to find a way to develop a rapid prototyping system. He came up with a layer-by-layer approach for manufacturing, using a photosensitive resin that was polymerized by UV light . Charles Hull is the inventor(1984) of stereo lithography, the first commercial rapid prototyping technology commonly known as 3D printing. The earliest applications were in research and development labs and tool rooms, but today 3D printing applications are seemingly endless . Commercialize 3d printing was started from 1990 In 2005 Z corp launched first high definition color 3D printing machine.

5. What is 3D Printing 3D Printing is a form of additive manufacturing technology where a three dimensional object is created in layer by layer form of material. It is also known as rapid prototyping (RP). Figure shows the construction of a three-dimensional object from a CAD model or a digital 3D model

6. Step 1: Produce a 3D model using computer aided design (CAD) software. EX: Solid works, Creo , Catia and many more. Step 2: Convert CAD file in to . stl ( StereoLithography ) format. Step 3: Slicing of the CAD model into horizontal layers (Cura,Slic3r…) Step 4 :The slicer software convert . stl file into G code which is understand by 3Dprinter. Step 5 :G –Code file uploaded in to 3D printing machine Step 6:According to G-code instructions 3D printer start printing layer by layer form a material which after become diffused together to form final object Working steps of 3D Printig

7. [2] Types of 3D Printing method Fused deposition method Laminated Object Manufacturing Stereolithographic Selective Laser Sintering (SLS). Selective Laser Melting (SLM). Types 3D Printing techniques

8. What is FDM? Fused Deposition Modeling (FDM), a layer-wise 3D printing technology, has been developed by Stratasys© for fabricating complex geometrical parts . The materials used are thermoplastic polymers and come in a filament form. Examples of thermoplastic used for FDM are PVA ,PLA ABS ,NYLON/POLYAMIDE ,PP ,PE ,PEEK… FDM Process Fused deposition modeling (FDM) was developed by s.scott Crump in the late 1980’s and was commercialized in 1990’s by stratasys

9. 1 Filament spools 2 Main filament 3 Support filament 4 Extrusion head 5 Printed part 6 Support structure 7 Build platform Typical FDM Machine

10. Z X Y Outline of FDM Process

11. Polymer Filament Polymer extrudate Outline of FDM Process

12. Process parameters Liquefier temperature Chamber temperature Stand-off distance Filament feed rate Nozzle diameter Deposition speed Material type

13. Factors effecting the final properties of the printed parts Processing Parameters Layer thickness Raster angle and width Infill Percentage and pattern Number of contours Machine Properties Nozzle Diameter and temperature Print bed and chamber temperature Printing speed Material properties Type of polymer Melting point Viscosity at printing temperature F inal properties of the printed parts p rinted parts Mechanical Thermal Electrical properties

14. A B Type Of Extrusion system used Direct extrusion system Direct extruders, as the name implies, are directly attached to the hot end and are a part of the print head. B. Indirect Extruder or Bowden extrusion system The difference between Direct and Bowden extruders is the location of the extruder in relation to the hot end. The opposite of Direct extruders, Bowden extruders are not attached to the hot end or print head. Instead, the extruder is removed from the print head and is most often attached to the printer body. The filament is then fed to the hot end using a Bowden tube

15. Benefits, Limitations & Application of 3D printing Benefits Limitations Geometric complexity at no extra cost Lower strength & anisotropic material properties Very low start-up costs Limited accuracy & tolerances Customization of each and every part Post-processing & support removal Low-cost prototyping with very quick turnaround Size and scale limitation Large range of (specialty) materials Slow Porcess Application Biomedical Aerospace, Automobile Tooling Electrical and Electronic Energy Storage

16. Applications

17. 3D printing(FDM) offers great geometric flexibility and can produce custom parts and prototypes quickly and at a low cost, but when large volumes, tight tolerances or demanding material properties are required traditional manufacturing technologies are often a better option. To Summarize

18. Printers Flashforge Inventor 2 Raise 3D N2Plus

19. Printer Specifications Manufacturer RAISE3D Layer Thickness (microns) 10 – 300 Printing Technology Fused Filament Fabrication Volume Build Volume W x D x H (mm) 305 x 305 x 610 Resurrection System Resume Printing Function after power interruption Advertised Manufacturer Speed (mm/s) 10-150 mm/s Advertised Manufacturer Material PLA / PLA+ / ABS / PC / PETG / R-flex / TPU / HIPS / Bronze-filled / Wood-filled Nozzle Temperature up to 300°C / 572°F Heated Bed up to 110°C / 230°F Connectivity WIFI, SD Card, USB, Ethernet Enclose Machine Yes Dual Extrusion Yes Nozzle Diameter (mm) 0.4 Propriatery filament No Filament Diameter (mm) 1.75 Printer Software IdeaMaker Workstation Compatibility Windows, Mac OS File Input Format STL / OBJ Printer Volume W x D x H (mm) 616 x 590 x 960 Weight Volume (kg) 50

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