Sensitivity Analysis and Tolerance Allocation for Microplanar Drill Point Grinders

Ehmann, Kornel F.; Kang, Seung-Gu; Lin, Cheng Li

doi:10.1016/s0007-8506(07)61223-2

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…It is clear from the above analysis, in grinding a helical drill, the grinding wheel is required to rotate around its own axis, while the drill has a helix movement around the Z* axis. For this reason, the grinding kinematics is simple [7], and so is the structure of the grinding machine for making the helical drills.…”

Section: Mathematical Modelingmentioning

confidence: 99%

Mathematical Model and Simulation of Regrind Chisel Edge for Helical Micro-Drill

Xiang

Zhou

et al. 2006

KEM

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Micro-drills are becoming more and more important in precision and micro fabrications. They have been widely used in applications, e.g., precision and micro drilling. In this paper, a novel method is advanced and used for regrinding of chisel edges of helical micro-drills. In this method, a geometric model is established for the chisel edge regrinding. Based on the kinematic relationship of regrinding, the model simplifies machine movement so as to facilitate an easy operation. Computer simulation is applied to the regrinding process of the micro-drills. The results demonstrate that the proposed method is effective in regrinding chisel edges, which allows for a more reasonable distribution of the angles along the chisel edge of a drill, and enhances the drilling performance.

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Section: Mathematical Modelingmentioning

confidence: 99%

Mathematical Model and Simulation of Regrind Chisel Edge for Helical Micro-Drill

Xiang

Zhou

et al. 2006

KEM

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Development of curved helical micro-drill point technology for micro-hole drilling

Chyan

Ehmann

1998

Mechatronics

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Helical Micro-Drill Point Design and Grinding

Lin¹,

Kang²,

Ehmann

1995

Journal of Engineering for Industry

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A new drill point geometry, termed the helical drill point, specifically intended for micro-drills, is developed in order to alleviate the disadvantages of existing planar micro-drill points. A mathematical model for this new drill point has been established. It is shown that this model is more general than existing drill point models. The commonly used conical, cylindrical and planar drill point models are only special cases of the helical model. For uniquely determining the grinding parameters of the new drill point as well as guiding the grinder design, the characteristics, the controllability and the sensitivity of the grinding parameters have been analyzed. Finally the geometric characteristics of this new drill point are investigated.

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Sensitivity Analysis and Tolerance Allocation for Microplanar Drill Point Grinders

Cited by 3 publications

References 5 publications

Mathematical Model and Simulation of Regrind Chisel Edge for Helical Micro-Drill

Mathematical Model and Simulation of Regrind Chisel Edge for Helical Micro-Drill

Development of curved helical micro-drill point technology for micro-hole drilling

Helical Micro-Drill Point Design and Grinding

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