TU Darmstadt ULB TUbiblio

# Deburring of Complex-Shaped Drilling Intersections: A Numerical Method for Modelling the Tool Path

## Abstract

When drilling holes, burrs are created in particular on the exit surface. Existing deburring tools and methods enable the deburring of plane exit surfaces or slightly curved cross-drilled holes. However, these tools do not meet practical requirements for deburring in the machining industry where component geometries are often complex. This paper presents a numerical method, which enables deburring of complex-shaped drilling intersections with ball-end cutters. First, the particular intersection is analysed as it defines the maximum tool diameter of the ball-end cutter. Subsequently, a three-axis tool path for ball-end cutters is generated to correlate with the intersection geometry thus enabling constant chamfering and avoiding tool collisions. The model is verified by an experiment using the material AlSi7Mg and measuring secondary burr heights and chamfer widths. Subsequently, the functionality of the model for further geometry variants is investigated.

Item Type: Article 2018 Schützer, Klaus ; Abele, Eberhard ; Meinhard, Adrian ; Donnelly, Julia Bibliographie Deburring of Complex-Shaped Drilling Intersections: A Numerical Method for Modelling the Tool Path English 2018 The International Journal of Advanced Manufacturing Technology, Springer London 100 https://doi.org/10.1007/s00170-018-3205-1 When drilling holes, burrs are created in particular on the exit surface. Existing deburring tools and methods enable the deburring of plane exit surfaces or slightly curved cross-drilled holes. However, these tools do not meet practical requirements for deburring in the machining industry where component geometries are often complex. This paper presents a numerical method, which enables deburring of complex-shaped drilling intersections with ball-end cutters. First, the particular intersection is analysed as it defines the maximum tool diameter of the ball-end cutter. Subsequently, a three-axis tool path for ball-end cutters is generated to correlate with the intersection geometry thus enabling constant chamfering and avoiding tool collisions. The model is verified by an experiment using the material AlSi7Mg and measuring secondary burr heights and chamfer widths. Subsequently, the functionality of the model for further geometry variants is investigated. Deburring, Ball-end cutter, Tool path generation, Freeform surface and complex intersection, Modelling and algorithm, Quality 16 Department of Mechanical Engineering16 Department of Mechanical Engineering > Institute of Production Technology and Machine Tools (PTW)16 Department of Mechanical Engineering > Institute of Production Technology and Machine Tools (PTW) > Machining Technology (2021 merged in TEC Fertigungstechnologie) 14 Jan 2019 10:33 23 Jan 2019 10:28 Multiline CSVSimple MetadataHTML CitationDublin CoreIBW_RDAEP3 XMLBibTeXASCII CitationJSONEndNoteRDF+XMLT2T_XMLAtomMODS TUfind oder in Google
 Send an inquiry

Options (only for editors)
 Show editorial Details