Cutting Force in Drilling with Flat Bottom Drill

Shoichi Tamura; Takashi Matsumura

doi:10.4028/p-0dz21w

Paper Titles

Drillability of Magnesium-Based Fiber Metal Laminates Obtained via Hot Metal Pressing with Different Metal Surface Treatments
p.1601

Numerical and Experimental Investigations in Orthogonal Milling of 15-5PH Stainless Steel
p.1609

Influence of Coulomb’s Friction Coefficient in Finite Element Modeling of Orthogonal Cutting of Ti6Al4V
p.1619

Tribocorrosion Behavior of Ti6Al4V Machined and Burnished Components for Biomedical Application
p.1629

Cutting Force in Drilling with Flat Bottom Drill
p.1636

Fabrication of Anti-Icing Surface Structures on Aluminum Alloy for Aerospace Applications
p.1643

Experimental Analysis of Circular Milling for Material Identification in Aerospace Industry
p.1650

Comparative Study of the Drilling Operation in Duplex Stainless Steels with Drills of Two and Three Cutting Edges
p.1660

Optimization of Machining Process for Improved Sustainability
p.1671

HomeKey Engineering MaterialsKey Engineering Materials Vol. 926Cutting Force in Drilling with Flat Bottom Drill

Cutting Force in Drilling with Flat Bottom Drill

Abstract:

Flat bottom drills at a point angle of 180 deg. have recently been applied to not only drilling on inclined surfaces but also flat bottom holes in terms of the dimensional accuracy and the process efficiency. Controlling the cutting force, the tool damage, and the surface finish, the corner shape is a critical parameter in the design of the flat bottom drill. The paper discusses the effect of the corner radius on the cutting forces and the surface finish in drilling with flat bottom drills. The typical differences in the cutting force are confirmed during the edge engagement. Then, the cutting force is simulated with a chip flow model, in which the chip flow angle is determined to minimize the cutting energy. The cylinder surface finishes and the burr formations are associated with the chip flow direction and the uncut chip thickness at the end of the lip.

By email View Pdf

You have full access to the following eBook

Achievements and Trends in Material Forming

Read eBook

Info:

Periodical:

Key Engineering Materials (Volume 926)

Pages:

1636-1642

DOI:

https://doi.org/10.4028/p-0dz21w

Citation:

Cite this paper

Online since:

July 2022

Authors:

Shoichi Tamura*, Takashi Matsumura

Keywords:

Chip Flow Direction, Corner Radius, Cutting Force, Flat Bottom Drill, Surface Finish

Export:

RIS, BibTeX

Permissions:

Creative Commons CC BY 4.0

Citation:

* - Corresponding Author

References

[1] R. Corne, C. Nath, M. El Mansori, T. Kurfess, Study of spindle power data with neural network for predicting real-time tool wear/breakage during Inconel drilling, J. Manuf. Syst. 43 (2017) 287–295.

DOI: 10.1016/j.jmsy.2017.01.004

Google Scholar

[2] S. Tamura, T. Matsumura, Cutting process simulation of flat drill, AIP Conf. Proc. 1960 (2018).

Google Scholar

[3] U. Heisel, T. Pfeifroth, Influence of point angle on drill hole quality and machining forces when drilling CFRP, Procedia CIRP 1 (2012) 471–476.

DOI: 10.1016/j.procir.2012.04.084

Google Scholar

[4] E. Usui, A. Hirota, M. Masuko, Analytical prediction of three dimensional cutting process: Part 1 basic cutting model and energy approach, J. Manuf. Sci. Eng. Trans. ASME 100 (1978) 222–228.

DOI: 10.1115/1.3439413

Google Scholar

[5] T. Matsumura, I. Hori, T. Shirakashi, E. Usui, Simulation of Drilling Process Based on Energy Approach, Proc. 8th Int. ESAFORM Conf. Mater. Form. 2 (2005) 757–760.

Google Scholar