micromachines Article Designing a Tool System for Lowering Friction during the Ejection of In-Die Sintered Micro Gears Emanuele Cannella 1,2,* , Emil Krabbe Nielsen 3 and Alessandro Stolfi 2 1 IPU Product Development, Kgs. Lyngby, 2800 DK, Denmark 2 DTU Department of Mechanical Engineering, Kgs...