Compensation Working Group

 

Working group K1: Process control and in-situ process parameter determination

Responsible: Marcelo de Oliveira Lopes


When were meetings held?

3rd meetings so far: 11.02.2019 / 12.03.2019 / 28.03.2019 / 26.02.2020


Which questions are currently being worked on?

  • Derivation of control options via external process control elements
  • Development and implementation of concepts for signal acquisition, control and regulation of melt processes


When should a publication be made in this regard?

In 2020, publications will be produced indirectly as a result of the solutions developed in this working group


 

Working group K2: Material influence / microstructure composition

Responsible: Marie-Noemi Bold


When were meetings held?

19.02.2020


Which questions are currently being worked on?

Simulative and experimental investigation of the influence of volume energy density during the LMD process on the microstructure

  • Dendrite arm spacing, phases occurring, grain size
  • Cooperation with TP A6 and B7

Simulative and experimental investigation of the influence of volume energy density during the LMD process on the microstructure

  • Dendrite arm spacing, phases occurring, grain size
  • Cooperation with TP A6 and B7


When should a publication be made in this regard?

What is the current research question?

  • Microstructure influence of IN718 by the process parameters in Laser Metal Deposition
  • Experimental: Variation of the volume energy density and analysis of the microstructure
  • Simulative: Thermal simulation of the process and solidification simulation based on temperature gradients, cooling rates and solidification rate Dendrite arm spacing
  • Further TPs are not (yet) at the point that materials are adjusted, will probably follow in the second half of the year

 

Working group K3: Thermal influence in process control

Responsible: Marc Hummel

When were meetings held?

04.12.2019 / 31.07.2019 / 17.04.2019 / 15.03.2019 / 16.01.2019 / 12.12.2018


Which questions are currently being worked on?

  • Discussion of the coating tests of the heating conductor layers (A12)
  • Further experiments for calibration of the coating system
  • Measurement methods that are carried out


When should a publication be made in this regard?

  • ITSC 2020 in Vienna: A12 and A1
  • 2 further subsequent publications planned for early 2021 and mid 2021


Thematic contents: Geometrically flexible temperature measurement

  • Production of a temperature sensor array
  • General feasibility confirmed
  • Miniaturization to increase the area resolution of the measurement function tested

  • Fully functional prototypes with several measuring islands
  • Comparison of the sensor layer with thermocouples and thermography

Based on given temperature fields (furnace, laser)

Application in the real process of the SFB (casting, welding, etc.)

  • Joint publications

ITSC 2020 in Vienna: A12 and A1

Further publication for the prototypes in prospect

 

Working group K4: Compensation for complex geometries


When were meetings held?

04.12.2018 / 11.03.2019 / 14.06.2019


Which questions are currently being worked on?

  • Development and testing of target functionalities for quality assessment and automated optimization in injection molding processes
  • Optimized path planning for additive manufacturing