Inside Metal Additive Manufacturing
  • About
  • Blog
  • Contact

Friction stir additive manufacturing of aluminium plates

4/9/2015

0 Comments

 
Additive manufacturing (AM) makes objects from three-dimensional (3D) models. Parts are fabricated by adding material layer-by-layer as opposed to traditional subtractive manufacturing methodologies. This post presents a new solid-state technique of friction stir additive manufacturing (FSAM) based on friction stir welding (FSW) and used to build an Al-based component [1].
Picture
schematic of friction stir additive manufacturing [1]
Friction stir additive manufacturing is a new environmentally friendly, energy-effective solid-state process technology based on friction stir welding. Recent publications show a definite potential to fabricate lightweight materials with high structural performances [2,3]. FSAM has the potential to attain efficiently Mg-based components with high structural performances through controlling the microstructures [4].

Picture
Nugget zone [1]
During FSAM, a rotating tool, consisting of a pin and a shoulder, is slowly inserted into the surfaces of the plates to be joined. It subsequently moves forward along the joint line.

Frictional heat between the rotating shoulder and the workpiece provides the required heat to join aluminum substrates.

The rotational pin motion creates a circulatory flow of plasticised material at the pin interface and generates enough deformation heat to form a weld nugget. The weld macro-shape depends of the pin shape. The rotation combined to the traverse movement of the pin subject the plasticized materials situated directly below the shoulder to extrusion mechanisms.

As the metal substrates do not melt and recast as such, internal porosities and solidification defects can be efficiently avoided.
Picture
Cross section of 9 aluminium plates joined by FSAM [1].


Get Inside Metal Additive Manufacturing
* indicates required
References

[1] Mao Yuqing, Ke Liming, Huang Chunping, Liu Fencheng, Liu Qiang, Formation characteristic, microstructure, and mechanical performances of aluminum-based components by friction stir additive manufacturing, Int J Adv Manuf Technol, DOI 10.1007/s00170-015-7695-9

[2] Dilip JJS, Babu S, Varadha Rajan S, Rafi KH, Janaki Ram GD, Stucker BE (2013) Use of friction surfacing for additive manufacturing. Mater Manuf Process 28:1–6

[3] Dilip JJS, Janaki Ram GD, Stucker B (2012) Additive manufacturing with friction welding and friction deposition processes. Int J Rapid Manuf 3(1):56–69

[4] Palanivel S, Nelaturu P, Glass B, Mishra RS (2015) Friction stir additive manufacturing for high structural performance through microstructural control in an Mg basedWE43 alloy. Mater Des 65:934–952

0 Comments

Your comment will be posted after it is approved.


Leave a Reply.

    We provide practical and actionable info dedicated to additive manufacturing of high-value metal components

    I want to know more about metal AM

    * indicates required

    Categories

    All
    Applications
    Background
    Certification
    Design
    Heat Treatment
    Laser Direct Deposition
    Materials
    Modelling
    NDE
    Parameters
    Post Processing
    Powder
    Production
    R&D
    Review
    SLM
    Surface Roughness
    Surface Treatment
    Technology

© Copyright 2014-2018 InsideMetalAdditiveManufacturing.com - All rights reserved | Privacy Policy | Terms of Service | Powered by TMS