Investigation of the burr formation during the drilling of free-form surfaces in al 7075 alloy


Bahce E., Ozdemir B.

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, cilt.8, ss.4198-4208, 2019 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 8 Konu: 5
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1016/j.jmrt.2019.07.028
  • Dergi Adı: JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
  • Sayfa Sayıları: ss.4198-4208

Özet

The use of free-form shapes has become widespread to design complex products that have to fulfil engineering requirements as well as aesthetic criteria. Conventional drilling with twist drilling still remains one of the most economical and efficient machining processes for hole making as well as for riveting and fastening structural assemblies in the aerospace and automotive industries. In drilling, one of the major issues of the process pertains to burrs formation, which affects the quality of the final product and, thus, the capability to meet the part desired functionality. Though it is noted that drilling operations produce burrs on the machined parts, burrs removal on free form surface is more difficult, producing an increase of both the time and cost for deburring.