New Method for Reducing the Hole Straightness Deviation in BTA Deep Hole Drilling

Biermann, D.^{1, a}; Weinert, K.^{1, b}; Kessler, N.^{1, c}

1)

Institut für Spanende Fertigung, Technische Universität Dortmund, Baroper Str. 301, 44227 Dortmund

a) biermann@isf.de; b) weinert@isf.de; c) kessler@isf.de

Kurzfassung

If boreholes with a high length to diameter ratio and with a high accuracy regarding to the compliance of the tolerance of the bore diameter, the roundness or the surface roughness deep hole drilling methods are applied. If workpieces have to be machined which feature a prism-shaped contour or which shall have eccentrically placed boreholes, the mode of operation for this processing is an exclusive rotating tool with a non rotating workpiece. This kind of mode of operation favors the hole straightness deviation. A new method developed at the Institute of Machining Technology bases thermally influencing by using an external inductive converter.

Schlüsselwörter

Deep Hole Drilling, Hole Straighntess Deviation, Induction Heating

Veröffentlichung

In: 3rd International Conference Engineering Technology, 21.1.-22.1. 2009, Pilsen, ISBN 978-80-7043-750-6, S. 1-7, digital veröffentlicht