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Actual Problems in Machine Building. 2016. N 3
Innovative Technologies
in Mechanical Engineering
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THE TECHNOLOGICAL CAPABILITIES OF HIGH PRECISION PLASMA CUTTING
SCHEME HiFocus
Plus
IN PROCESSING OF STRUCTURAL STEELS
Rakhimyanov Kh.M.,
D.Sc. (Engineering), Professor, e-mail:
kharis51@mail.ruGaar N.P.,
Ph. D. (Engineering), Associate Professor, e-mail:
lianelas@mail.ruLoktionov A.A.,
Senior Lecturer, e-mail:
pushkin-lok@mail.ruNovosibirsk State Technical University, 20 Prospekt K. Marksa, Novosibirsk, 630073, Russian
Federation
Abstract
The research dedicated for evaluating the accuracy of the metal sheet materials cutting using the
technology of high-precision plasma cutting scheme HiFocusplus. The results of experimental
studies of cutting edges squareness width the cutting thickness range from 4 to 20 mm for structural
steel St. 3 are presented. A significant cut squareness of deviation the left edge compared to the
declared value of the equipment manufacturer. It is proposed to choose the direction of plasmatron
moving along contour being processed so that the shaping of parts to realize by the right edge of the
cut. It is experimentally shown that when cutting of low carbon structural steel with the thickness
range of less than 14 mm and more than 20 mm precision cutting parameters and its cutting width
are not achieved, according to the manufacturer. A possible set of activities to improve the accuracy
of cutting in these ranges of thickness of the processed material proposed.
Keywords
High-precision plasma cutting, plasmatron active elements, kerf, cutting speed.