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Date of Publication:2022-10-06

Journal:大连理工大学学报

Affiliation of Author(s):机械工程学院

Volume:51

Issue:5

Page Number:675-680

ISSN No.:1000-8608

Abstract:During the process of drilling carbon fiber reinforced plastics (CFRP),
   it tends to effectively reduce or eliminate manufacturing deficiency,
   such as burr and delamination using electroplated diamond step-core
   drill whose service life mainly depends on the service life of
   electroplated diamond abrasive. Therefore, systematic statistical
   observation was carried out on the abrasive wear patterns of
   electroplated diamond. Investigations show that using the electroplated
   diamond step-core drill, three unique stages of diamond abrasive wear
   can be observed during the process of drilling T300 CFRP, which involves
   initial instable wear stage, mixed-wear stage and normal wear stage. The
   wear patterns of diamond abrasive and drilling thrust force have a
   significant linear relationship. With the growing of hole numbers, the
   thrust force gradually increases, but diameter tolerances of the holes
   are still stabilized in a range of 0. 024 mm after the initial instable
   wear stage.

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