Study of the capsule-filling dosator process via calibrated DEM simulations.

Capsule filling is frequently accomplished via the dosator process. Controlling the main quality attributes, i.e.

Microstructure Evolution in a 6082 Aluminium Alloy during Thermomechanical Treatment.

Thermomechanical treatments of age-hardenable wrought aluminium alloys provoke microstructural changes that involve the movement, arrangement, and annihilation of dislocations, the movement of boundaries, and the formation or dissolution of phases. Cold and hot compression tests are carried out using a Gleeble 3800 machine to produce flow data as well as deformed samples for metallography. Electron backscattered diffraction and light optical microscopy were used to characterise the microstructure after plastic deformation and heat treatments.

Mechanistic modeling of a capsule filling process.

Filling a dosator nozzle moving into a powder bed was investigated using the Discrete Element Method (DEM). Various particle diameters and contact properties were modeled. The simulations qualitatively showed the influence of powder properties on the amount of dosed powder.