Wear mechanisms of micro-drills during dry high speed drilling of PCB

2012 ◽  
Vol 212 (10) ◽  
pp. 1989-1997 ◽  
Author(s):  
L.J. Zheng ◽  
C.Y. Wang ◽  
L.Y. Fu ◽  
L.P. Yang ◽  
Y.P. Qu ◽  
...  
Keyword(s):  
Wear Mechanisms ◽  
High Speed ◽  
High Speed Drilling

Droplet and bone dust contamination from high‐speed drilling during mastoidectomy

2021 ◽  
Vol 46 (3) ◽  
pp. 614-618
Author(s):  
Anne L. Markey ◽  
Samuel C. Leong ◽  
Casey Vaughan
Keyword(s):  
High Speed ◽  
High Speed Drilling

Dynamic characteristics of a drill in the drilling process

2003 ◽  
Vol 217 (2) ◽  
pp. 161-167 ◽  
Author(s):  
B W Huang
Keyword(s):  
Dynamic Characteristics ◽  
High Speed ◽  
Thrust Force ◽  
Time Dependent ◽  
Drilling Process ◽  
Improve Quality ◽  
Vibration Model ◽  
High Speed Drilling ◽  
Spinning Speed ◽  
Twisted Beam

The dynamic characteristics of high-speed drilling were investigated in this study. To improve quality and produce a higher production rate, the dynamic characteristics of the drilling process need to be studied. A pre-twisted beam is used to simulate the drill. The moving Winkler-type elastic foundation is used to approximate the drilling process. A time-dependent vibration model for drilling is presented. The spinning speed, pre-twisted angle and thrust force effects of the drill are considered. The numerical analysis indicates that the natural frequency is suddenly reduced as the drill moves into a workpiece.

High-speed-drilling in AZ91 D without Lubricoolants

2006 ◽  
pp. 371-379
Author(s):  
Franz Tikal ◽  
Marcus Schmier ◽  
Christian Vollmer
Keyword(s):  
High Speed ◽  
High Speed Drilling
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