The use of plasticine as an analog to explore material flow in friction stir welding

The use of plasticine as an analog to explore material flow in friction stir welding This study investigates plasticine for use as an analog for modeling material flow in friction stir welding of metals. Different colors of plasticine are combined in a weld to aid in flow visualization. Several welds are performed in the plasticine under various rotational speeds and with both a threaded and smooth pin tool. The transient temperature response of the plasticine shows the same qualitative behavior as welds conducted in metals. Although temperature increases inside the weld region are small during welding of the plasticine, compression tests show that a relatively small increase in temperature of the clay results in a significant reduction in flow stress. The plasticine welds are compared to previous visualization data from welds conducted in metals. Transverse sections cut from plasticine welds show that at a low tool rotational speed, large-scale mixing is absent and the original interface between advancing and retreating side workpieces is clearly discernable. This interface line matches well with a map of the post-welding interface line from an aluminum weld using a marker insert technique. Motion of material in the welding direction is also observed by inserting contrasting color plasticine markers into the workpiece. The motion of the markers is verified by a similar marker insert technique using aluminum. At high rotational speeds, material rotates several times around the pin, traveling forward with it. Significant vertical motion during welding is also observed in the plasticine. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Processing Technology Elsevier

The use of plasticine as an analog to explore material flow in friction stir welding

Loading next page...
 
/lp/elsevier/the-use-of-plasticine-as-an-analog-to-explore-material-flow-in-SRzjqqovIm
Publisher
Elsevier
Copyright
Copyright © 2006 Elsevier B.V.
ISSN
0924-0136
eISSN
1873-4774
DOI
10.1016/j.jmatprotec.2006.10.049
Publisher site
See Article on Publisher Site

Abstract

This study investigates plasticine for use as an analog for modeling material flow in friction stir welding of metals. Different colors of plasticine are combined in a weld to aid in flow visualization. Several welds are performed in the plasticine under various rotational speeds and with both a threaded and smooth pin tool. The transient temperature response of the plasticine shows the same qualitative behavior as welds conducted in metals. Although temperature increases inside the weld region are small during welding of the plasticine, compression tests show that a relatively small increase in temperature of the clay results in a significant reduction in flow stress. The plasticine welds are compared to previous visualization data from welds conducted in metals. Transverse sections cut from plasticine welds show that at a low tool rotational speed, large-scale mixing is absent and the original interface between advancing and retreating side workpieces is clearly discernable. This interface line matches well with a map of the post-welding interface line from an aluminum weld using a marker insert technique. Motion of material in the welding direction is also observed by inserting contrasting color plasticine markers into the workpiece. The motion of the markers is verified by a similar marker insert technique using aluminum. At high rotational speeds, material rotates several times around the pin, traveling forward with it. Significant vertical motion during welding is also observed in the plasticine.

Journal

Journal of Materials Processing TechnologyElsevier

Published: Apr 12, 2007

References

  • Analysis of a new model material for the physical simulation of metal forming
    Pertence, A.E.M.; Cetlin, P.R.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off