Publication detail

On the effective milling of large workpieces

PÍŠKA, M. POLZER, A. FIALA, Z.

Original Title

On the effective milling of large workpieces

Type

conference paper

Language

English

Original Abstract

Cutting tool geometry and cutting conditions have significant influence on cutting forces and loading of the machine, workpiece, tool and other clamping and supporting fixtures. Very high removal rates with productive milling heads can be reached. However, the problems arise when a structural workpiece is released and a stress relaxation follows. Some unexpected deformations out of tolerances can be found due to mechanical and thermal impacts of the machining operation. This paper deals with complex analyses of the active and passive forces acting on the workpiece, analyses of the specific cutting pressures for three different cutting heads, thermal fields measured with a thermo-camera, deflection of the workpiece material and analyses of the system vibrations during machining of two grades of steel (1.0553 and 1.1191) of large parts. The results have showed that it is very difficult to find a simple optimal solution, but an acceptable effective compromise with advanced CNC machining can be found.

Keywords

Milling, stability, forces, thermal fields

Authors

PÍŠKA, M.; POLZER, A.; FIALA, Z.

RIV year

2013

Released

27. 10. 2013

Publisher

Universitetsservice US AB

Location

Stockholm, Sweeden

ISBN

978-91-7501-892-8

Book

Procedings of the International Conference on Advanced Manufacturing Engineering and Technologies, NEWTECH 2013

Edition

1

Edition number

1

Pages from

149

Pages to

158

Pages count

10

URL

http://newtech2013.com/

BibTex

@inproceedings{BUT103245,
  author="Miroslav {Píška} and Aleš {Polzer} and Zdeněk {Fiala}",
  title="On the effective milling of large workpieces",
  booktitle="Procedings of the International Conference on Advanced Manufacturing Engineering and Technologies, NEWTECH 2013",
  year="2013",
  series="1",
  number="1",
  pages="149--158",
  publisher="Universitetsservice US AB",
  address="Stockholm,
Sweeden",
  isbn="978-91-7501-892-8",
  url="http://newtech2013.com/"
}