A generalized helical needle tip geometry model, which can describe many typical needle tip geometries, including conical, bevel, blunt and helical shapes with proper geometric parameters, is presented based on analogy to the helical point drill geometry. The generality of this model offers a general way for manufacturing various needle tip geometries. A mathematical model of the helical needle tip geometry is provided along with the formulation of the kinematic model of the tip grinding process. The control strategy on a 5-axis grinding machine system is also developed to implement the designed kinematic model. The needle tip’s motions in the grinding process are simulated to characterize the effects of grinding parameters on needle tip properties and to predict the trajectory of the needle tip point during the grinding process. Finally, several types of needle geometries have been manufactured by the developed grinding process to verify the newly formulated models.
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ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing
June 4–8, 2012
Notre Dame, Indiana, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-5499-0
PROCEEDINGS PAPER
Design and Analysis of Helical Needle Tip Grinding Process Available to Purchase
Demeng Che,
Demeng Che
Northwestern University, Evanston, IL
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Kornel F. Ehmann
Kornel F. Ehmann
Northwestern University, Evanston, IL
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Demeng Che
Northwestern University, Evanston, IL
Ping Guo
Northwestern University, Evanston, IL
Kornel F. Ehmann
Northwestern University, Evanston, IL
Paper No:
MSEC2012-7274, pp. 33-42; 10 pages
Published Online:
July 19, 2013
Citation
Che, D, Guo, P, & Ehmann, KF. "Design and Analysis of Helical Needle Tip Grinding Process." Proceedings of the ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. ASME 2012 International Manufacturing Science and Engineering Conference. Notre Dame, Indiana, USA. June 4–8, 2012. pp. 33-42. ASME. https://doi.org/10.1115/MSEC2012-7274
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