ACCURACY OF MACHINE TOOLS

  • 1VSB - Technical University of Ostrava, Faculty of Mechanical Engineering, Department of machining, assembly and engineering metrology, Ostrava, SK

Abstract

The accuracy of milling centre geometry is a basic condition for successful application in practice. Users of modern centres have to deal with the issue of measuring accuracy using in the production program. The desired results are achieved by careful preparation both before and during adjustment operations. These rules apply to all applications for new machines, but also to machines after collision or after handling older machines. The geometrical accuracy of the machine begins at the design stage, when the emphasis must be placed on the precision of production of parts and groups with the precise assembly of new machines. Even the best adjustment or alignment of the machine is not valid if the company orders a poor quality machine that does not meet the required characteristics both in design and quality. Such a poorly selected machine guarantees frequent interventions by technicians to ensure at least the minimum required tolerance.

Recommended articles

5-AXIS DRY MILLING OF BOTTOM OF POCKET BY BALL AND CIRCLE-SEGMENT END MILLS

Ales Polzer, Vit Sebesta, Tomas Trcka
Keywords: hyperMILL | CNC programming | machined surface | force measurement | circle-segment end mill

APPLICATION OF LASER SURFACE POLISHING ON ADDITIVE MANUFACTURED PARTS OF INCONEL 718 NICKEL-BASED SUPERALLOY

Martin Bures, Miroslav Zetek
Keywords: Laser polishing | additive manufacturing | Pulsed régime | Continuous wave régime | Inconel 718 | surface roughness

STOCHASTIC STRENGTH ANALYSIS OF COMPRESSION HEADLESS SCREW

Vojtech Bajtek, Karel Frydrysek, Leopold Pleva
Keywords: Headless (Herbert) Screw | Stochastic Analysis | Osteosynthesis | strength | Histogram | Biomechanics