Utilization of Curve Offsets in Additive Manufacturing


21st International ESAFORM Conference on Material Forming (ESAFORM), Palermo, Italy, 23 - 25 April 2018, vol.1960 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 1960
  • Doi Number: 10.1063/1.5035003
  • City: Palermo
  • Country: Italy
  • Middle East Technical University Affiliated: Yes


Curve offsets arc utilized in different fields of engineering and science. Additive manufacturing, which lately becomes an explicit requirement in manufacturing industry, utilizes curve offsets widely. One of the necessities of offsetting is for scaling which is required if there is shrinkage after the fabrication or if the surface quality of the resulting part is unacceptable. Therefore, some post-processing is indispensable. But the major application of curve offsets in additive manufacturing processes is for generating head trajectories. In a point-wise AM process, a correct tool-path in each layer can reduce lots of costs and increase the surface quality of the fabricated parts. In this study, different curve offset generation algorithms are analyzed to show their capabilities and disadvantages through some test cases and improvements on their drawbacks are suggested.