Hard turning of interrupted surfaces using CBN tools

Hard turning of interrupted surfaces using CBN tools Some of the advantages of using turning instead of grinding for the finish machining of hardened steel surfaces are: high flexibility, the ability to cut complex surfaces with a single machine set up, cost of the process, and the possibility of turning without cutting fluid. On the other hand, turning is not very suitable for cutting hardened interrupted surfaces, since most of the tools used in this operation are not very tough. This work aimed to broaden the use of hardened steel turning tools, comparing the use of two CBN tool grades (low CBN content, called 7020, and high CBN content, called 7050) and two cutting edge micro geometries (chamfered and rounded edge) in radial turning of three kinds of surfaces: continuous, semi interrupted and interrupted. The comparison was in terms of tool wear and tool life. The workpiece material was AISI 4340 steel with 56 HR C of hardness. Results showed that the longest tool life was obtained when the 7020 grade was used, regardless of surface type. However, in continuous cutting, tools with chamfered edges proved to have the longest life, while for interrupted cutting the best results were produced by tools with edge rounding. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Processing Technology Elsevier

Hard turning of interrupted surfaces using CBN tools

Loading next page...
 
/lp/elsevier/hard-turning-of-interrupted-surfaces-using-cbn-tools-pgdnxxRZrf
Publisher
Elsevier
Copyright
Copyright © 2007 Elsevier B.V.
ISSN
0924-0136
eISSN
1873-4774
DOI
10.1016/j.jmatprotec.2007.05.022
Publisher site
See Article on Publisher Site

Abstract

Some of the advantages of using turning instead of grinding for the finish machining of hardened steel surfaces are: high flexibility, the ability to cut complex surfaces with a single machine set up, cost of the process, and the possibility of turning without cutting fluid. On the other hand, turning is not very suitable for cutting hardened interrupted surfaces, since most of the tools used in this operation are not very tough. This work aimed to broaden the use of hardened steel turning tools, comparing the use of two CBN tool grades (low CBN content, called 7020, and high CBN content, called 7050) and two cutting edge micro geometries (chamfered and rounded edge) in radial turning of three kinds of surfaces: continuous, semi interrupted and interrupted. The comparison was in terms of tool wear and tool life. The workpiece material was AISI 4340 steel with 56 HR C of hardness. Results showed that the longest tool life was obtained when the 7020 grade was used, regardless of surface type. However, in continuous cutting, tools with chamfered edges proved to have the longest life, while for interrupted cutting the best results were produced by tools with edge rounding.

Journal

Journal of Materials Processing TechnologyElsevier

Published: Jan 1, 2008

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 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