On the effective reaming of austenitic steels with cermet reamers and flood cooling
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F11%3APU92393" target="_blank" >RIV/00216305:26210/11:PU92393 - isvavai.cz</a>
Result on the web
<a href="http://www.sps11.se/" target="_blank" >http://www.sps11.se/</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
On the effective reaming of austenitic steels with cermet reamers and flood cooling
Original language description
Reaming operation is a common technological process which enlarges a pre-existing hole. For austenitic steels, IT 5-6 and roughness bellow Ra 0.8 um are achieved today by cermet and diamond cutting tools operating with cutting speeds about 100 m/min. However, a high productive reaming relies upon good cutting material and coating, its design, cutting performance, correct alignment of a pre-drilled hole and powerful process cooling. In this operation, specific cutting forces can be found with effect on cutting performance and quality of the machined surfaces. Since little material is removed, reaming operation can be split into several time-phases of cutting with different cutting and tribological phenomena. This paper deals with a effective use of a solid carbide drill, a semi-finishing carbide boring head and powerful cermet reamers for CNC machining of stainless steel DIN 1.4404, X2CrNiMo1732 (equivalent standard AISI 316L). Kistler dynamometer 9272, charge amplifiers 9011 and the Dynoware program for total force loading of the samples were used. A new 5-axis machining centre MCV 1210 (ZPS-TAJMAC, share company, Zlin) controlled with Sinumerik 840D, thermogrips Bilz, HAM-FINAL cermet reamers and holders, and a special precise fixture for workpiece preventing its deflection was used. The Fuchs Oil emulsion (10% concentration, 60 bars in pressure, flood intensity 50 l/min) and outer system of cooling for the monolithic cermet reamers were used. The Taylor Hobson Form Talysurf PGI 400 profiler and measuring probe Renishaw OMP400 with SW Productivity+ were used for surface quality evaluation. Some works dealing with high dimensional accuracy, roundness and cylindricity measurements are still in progress. Selected variables like specific energy of reaming, coefficient of flank friction of the guide pads and other physical and technological variables are statistically assessed.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JQ - Machinery and tools
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the SPS 11
ISBN
978-91-86401-05-4
ISSN
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e-ISSN
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Number of pages
7
Pages from-to
228-234
Publisher name
The Swedish Production Academy
Place of publication
Lund
Event location
Lund
Event date
May 3, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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