Investigating of the Effects of Hot Isostatic Pressure Heat Treatment on Mechanical Properties of PLA Based BCC Lattices

Kuleyin H., Uşun A., Gümrük R.

5th International Conference on Engineering Technologies in Konya/TURKEY (ICENTE 2021), Konya, Türkiye, 18 - 21 Kasım 2021, ss.154

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Konya
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.154
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

Lattice structures that have body-centered cubic (BCC) unit cells were manufactured in this study using fused deposition modeling with polylactic acid (PLA) as printing material. Obtained cellular structures were heat-treated utilizing the hot isostatic pressure (HIP) method. Isostatic pressure was applied with nitrogen gas in an autoclave under different temperatures. Effects of the heat treatment were investigated using compression tests. Heat treatment applied below the glass transition temperature was deformed under a higher load and higher energy absorption capability. Heat treatment above the glass transition temperature showed reduced energy absorption capacity and collapse load values, especially at the temperature of 75°C.