چکیده مقاله
Micro droplet formation for drop on demand DOD has many applications such as ink jet printing, rapid prototyping, and metal powder producing In this paper design and fabrication of micro droplet printing actuator using piezoelectric excitation is presented Piezoelectric vibration is used to push liquid out of nozzle and produce droplets Effect of voltage amplitude, suction and pressure time and nozzle diameter on droplet diameter is investigated Also, effect of voltage amplitude on droplet velocity and cut off length is described Presented results can be used to control droplet properties High speed camera is used to evaluate droplet diameter and velocity High speed camera pictures are processed with MATLABR2008a It is possible to control droplet diameter from 450 to 1000 micron with presented actuator Velocity of droplet can be also controlled in range of about 0 2 to 1 4 m/s At last, for testing repeatability, ink printing on paper attached to rotary table is done
کلیدواژهها
نویسندگان
H Sadeghian
Metrology lab, Mechanical Department, Tarbiat Modares University, Tehran, Iran
Y Hojjat
Metrology lab, Mechanical Department, Tarbiat Modares University, Tehran, Iran
M Ghodsi
Metrology lab, Mechanical Department, Tarbiat Modares University, Tehran, Iran
M Sheikhaleslami
Metrology lab, Mechanical Department, Tarbiat Modares University, Tehran, Iran
شیوه ارجاع
Sadeghian, H and Hojjat, Y and Ghodsi, M and Sheikhaleslami, M,1390,Design and Fabrication of Micro Droplet Generator,12th Iranian Conference on Manufacturing Engineering (ICME 2010),Tehran
ارائهشده در
مجموعه مقالات دوازدهمین کنفرانس ملی مهندسی ساخت و تولید ایران6 دی 1390 · تهران