Role of insert material on process loads during FSW

Role of insert material on process loads during FSW In FSW, insert materials are often used to both control the loading conditions as well as to trace the nature of materials flow. This current study aims at understanding the role played by inserts materials by using two different materials, copper and tin as inserts. The copper and tin have higher and lower melting points respectively as compared to aluminum. The metal strips are sandwiched between aluminum plates and friction stir welded at two different rotational speeds. The process loads and torque were recorded during the welding and compared with that obtained for normal butt-welding of aluminum sheets. In the case of copper insert, copper gets distributed in the matrix and it is possible to trace the flow of copper inside the aluminum. In the case of tin, it melts during the welding. The molten tin is squeezed out of faying surface and coats tool shoulder. This lowers the friction and which in turn lowers the torque (55%) and the consequent heat generation. The resultant reduction of temperature in the weld leads to higher tangential and normal loads. Compared to the case without insert, the normal loads for FSW processing with tin insert were higher by 2.2 times and tangential loads were higher by 5.5 times. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The International Journal of Advanced Manufacturing Technology Springer Journals
Loading next page...
 
/lp/springer_journal/role-of-insert-material-on-process-loads-during-fsw-R2YALQwr00
Publisher
Springer London
Copyright
Copyright © 2017 by Springer-Verlag London
Subject
Engineering; Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design
ISSN
0268-3768
eISSN
1433-3015
D.O.I.
10.1007/s00170-016-9974-5
Publisher site
See Article on Publisher Site

Abstract

In FSW, insert materials are often used to both control the loading conditions as well as to trace the nature of materials flow. This current study aims at understanding the role played by inserts materials by using two different materials, copper and tin as inserts. The copper and tin have higher and lower melting points respectively as compared to aluminum. The metal strips are sandwiched between aluminum plates and friction stir welded at two different rotational speeds. The process loads and torque were recorded during the welding and compared with that obtained for normal butt-welding of aluminum sheets. In the case of copper insert, copper gets distributed in the matrix and it is possible to trace the flow of copper inside the aluminum. In the case of tin, it melts during the welding. The molten tin is squeezed out of faying surface and coats tool shoulder. This lowers the friction and which in turn lowers the torque (55%) and the consequent heat generation. The resultant reduction of temperature in the weld leads to higher tangential and normal loads. Compared to the case without insert, the normal loads for FSW processing with tin insert were higher by 2.2 times and tangential loads were higher by 5.5 times.

Journal

The International Journal of Advanced Manufacturing TechnologySpringer Journals

Published: Jan 23, 2017

References

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 lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off