Akademik Veri Yönetim Sistemi
IV. International Science and Innovation Congress, İstanbul, Türkiye, 27 - 30 Temmuz 2023, ss.9
Manufacturing parts in 3D printers with the Fuse deposition modelling (FDM) is one of today's innovative manufacturing methods.
The advantages of the method can be listed as the possibility to produce very complex designs, easy customization, low fixed cost,
speed and ease of prototyping, faster and less risky product development, and finally less waste. The quality of the printed parts is
affected by many process parameters. We can list some of these parameters as follows; post-treatment heat treatment, nozzle
temperature, layer thickness, part printing direction, printing speed, fill pattern and density. In this study, the effects of different
levels of nozzle temperature, printing speed and heat treatment time on tensile strength are investigated. Taguchi L9 orthogonal array
method was used in the experimental design and the test samples were printed according to ASTM D638 -14 type 1 (Tensile)
standard. These experiments were produced in two sets in a way to make a total of 18 test samples. According to the results obtained,
the nozzle temperature has a critical effect on the tensile strength. The increase in printing speed affects tensile strength negatively. It
caused a decrease in tensile strength especially after 55 mm/s. The heat treatment process has a positive effect on the tensile strength.
However, keeping the processing time over 20 minutes has no significant benefit in terms of tensile strength. In this state, filaments
such as Carbon FiberBased Polyamide can be used as material for complex parts in the machinery field, medium load parts in the
automotive field and aerospace field.
Keywords: Carbon fiber reinforced PA (CF-PA), Fuse Deposition Modeling(FDM), Additive Manufacturing(AM), Taguchi Method,
Tensile strengt