Numerical Template

Paper #:
  • 2015-01-2489

Published:
  • 2015-09-15
DOI:
  • 10.4271/2015-01-2489
Citation:
Le Vacon, P., Buisson, T., and Albert, F., "Numerical Template," SAE Technical Paper 2015-01-2489, 2015, doi:10.4271/2015-01-2489.
Pages:
5
Abstract:
This paper presents an innovative solution of portable drilling machine, lightweight and low cost, dedicated to drilling operations on single and double curved aircraft structure.Aircraft Standard drilling process mainly uses drilling templates combined with Automated Drilling Units (ADU) which is a very efficient solution. However, the management of templates and ADUs is a time consuming and costly task in regards to the large quantity of existing references spread over every aircraft production sites.Therefore, to help reducing those costs and also workload, the concept of the Numerical Template (NCT) has been designed, using classic and robust mechanical devices, hand-held, lightweight and universal. NCT architecture concept could led to a family of NCT with different dimensions of frame parts(X,Y,Z), fitted to the targeted area geometry. The system is able to guaranty an accuracy of ± 0.5 mm and a normality of ±0.5°.
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