ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 7

Establishing Criteria for a Computerized Vision Inspection of Holes Drilled in Carbon Fiber Composites

Hough, CL
Associate Professor, Texas A&M University, College Station, TX

Lednicky, TE
Materials & Process Engineer, General Dynamics Corporation, Fort Worth, TX

Griswold, N
Associate Professor, Texas A&M University, College Station, TX

(Received 9 February 1987; accepted 10 July 1987)

Abstract

Two basically different carbide bit designs, a dagger bit and a standard twist drill, were tested extensively in graphite/epoxy composite material. A commercially available computer vision system was utilized to evaluate hole quality as the bits wore for fraying, delamination, and hole tolerance. Methods and procedures for establishing acceptance criteria using the vision system are given. Based on manual acceptance criteria, vision system criteria were established for fraying and suggested for entrance delamination.

Keywords:
vision system, composites, inspection, drilling, carbide tools, tool life, material removal

Paper ID: JTE11156J
DOI: 10.1520/JTE11156J
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