A drill bit integrated with a retractable deburring cutter can be used for drilling and deburring exit burrs in a single process. In preliminary works, the authors learned that the retractable cutter may cause hole widening during its passage through the holes. A new design for the deburring cutter is proposed to avoid hole widening. With the new design, mild exit burrs (types I and II) are successfully removed. For large exit burrs (type III), however, the deburring is likely to be incomplete.
MinS. K.DornfeldD. A.Development of a drilling burr control chart for low alloy steel AISI 4118. J. Mater. Processing Technol., 2001, 113(1–3), 4–9; also in Proceedings of the 5th Asia Pacific Conference on Materials Processing, Seoul, Korea, 25 June 2001.
2.
KimJ. S.DornfeldD. A.Development of a drilling burr control chart for stainless steel. Trans. N. Am. Mfg Res. Inst., SME, 2000, 28, 317–322.
3.
KimJ. S.DornfeldD. A.Optimization and control of drilling burr formation of AISI 304L and AISI 4118 based on drilling burr control charts. Int. J. Mach. Tools Mf., 2001, 41, 923–936.
4.
DornfeldD. A.Drilling burr formation in titanium alloy Ti-6Al-4V. Ann. CIRP, Mfg Technol., 1999, 48(1), 73–76.
5.
SteinJ. M.DornfeldD. A.Analysis of the burrs in drilling precision miniature holes. In Manufacturing Science and Engineering, Vol. MED v2–1, 1995, pp. 127–148 (American Society of Mechanical Engineers, New York); also in Proceedings of the 1995 ASME International Mechanical Engineering Congress and Exposition, San Francisco, California, 12–17 November 1995.
6.
SteinJ. M.DornfeldD. A.Burr formation in drilling miniature holes. Ann. CIRP, 1997, 46, 63–66.
7.
SteinJ. M.DornfeldD. A.Influence of workpiece exit angle on burr formation in drilling intersection holes. Trans. N. Am. Mfg Res. Inst., SME, 1996, 24, 39–44.
8.
KimJ. S.Experimental study of burr formation in drilling of intersecting holes with gun and twist. Technical paper MR99-134, Society of Manufacturing Engineers, Dearborn, Michigan, 1999, pp. 1–6.
9.
GuoY.DornfeldD. A.Finite element analysis of drilling burr minimization with a backup material. Technical paper MR1998, Society of Manufacturing Engineers, Dearborn, Michigan, 1998, pp. 1–6.
10.
GuoY.DornfeldD. A.Integration of CAD of drill with FEA of drilling burr formation. Technical paper MR1998, Society of Manufacturing Engineers, Dearborn, Michigan, 1998, pp. 201–206.
11.
MinS. K.Finite element modeling of burr formation in metal cutting. Machining Sci. Technol., 2001, 5(3), 307–322.
12.
HeuleH.Deburring tool with cutting blade. US Pat. 5, 181,810, 26 January 1993, p. 13.
13.
HeuleU.Deburring tool. US Pat. 5,755,538, 26 May 1998.
14.
HeuleU.Deburring tool for deburring the edges of boreholes. US Pat. 5,803,679, 8 September 1998.
