Day by day the application of thread milling process is enhancing in industry because of its inherent advantages over other thread cutting techniques. The current study dwells on the interference issue, which is generated during thread milling. It was observed that there are two sources of interference on the thread produced, i.e., interference induced during mill penetration and during full machining. This interference leads to an overcut on the thread; thus, it produces a dimensionally inaccurate thread. The interference produced by penetration is much more when compared to interference generated during full machining of thread. Thus, there is a pressing need to analyze interference during penetration. So, this study evaluates different applied penetration strategies and the level of interference produced. Further, the study suggests modified penetration strategies in order to reduce the interference produced and hence create more accurate thread. This investigation is supported by analytical modeling and experimental exploration.

References

1.
Koelsch
,
J. R.
, 2005, “
Thread Milling Takes on Tapping
,”
Manuf. Eng.
,
115
, pp.
77
83
.
2.
Halas
,
D.
, 1996, “
Tapping vs Thread Milling
,”
Tooling and Production Magazine
,
62
, pp.
99
102
.
3.
Ivanina
,
I. V.
, 2005, “
Influence of Parameters of the Cutting Part of Taps on Threading Accuracy
,”
Meas. Tech.
,
48
(
10
), pp.
990
994
.
4.
Gerasimov
V. Ya.
, and
Gerasimova
,
O. V.
, 2009, “
Influence of the Accuracy of Thread Manufacture on the Mechanical Properties of High-Strength Bolts
,”
Russ. Eng. Res.
,
29
(
4
), pp.
345
347
.
5.
Mezentsev
,
O. A.
,
DeVor
,
R. E.
, and
Kapoor
,
S. G.
, 2002, “
Prediction of Thread Quality by Detection and Estimation of Tapping Faults
,”
J. Manuf. Sci. Eng.
,
124
, pp.
643
650
.
6.
Fromentin
,
G.
,
Poulachon
,
G.
,
Moisan
,
A.
,
Julien
,
B.
, and
Giessler
,
J.
, 2005, “
Precision and Surface Integrity of Threads Obtained by Form Tapping
,”
CIRP Ann.—Manuf. Technol.
,
54
(
1
), pp.
519
522
.
7.
Warrington
,
C.
, and
Devor
,
R.
, 2005, “
Experimental Investigation of Thread Formation in Form Tapping
,”
J. Manuf. Sci. Eng.
,
127
(
4
), pp.
829
836
.
8.
Armarego
,
E. J. A.
, and
Chen
,
M. N. P.
, 2002, “
Predictive Cutting Models for the Forces and Torque in Machine Tapping With Straight Flute Taps
,”
CIRP Ann.—Manuf. Technol.
,
51
(
1
), pp.
75
78
.
9.
Araujo
,
A. C.
,
Silveira
,
J. L.
,
Jun
,
M. B. G.
,
Kapoor
,
S. G.
and
Devor
,
R.
, 2006, “
A Model for Thread Milling Cutting Forces
,”
Int. J. Mach. Tools Manuf.
,
46
(
15
), pp.
2057
2065
.
10.
Chiang
,
C. J.
,
Fong
,
Z. H.
, and
Tseng
,
J. T.
, 2009, “
Computerized Simulation of Thread Form Grinding Process
,”
Mech. Mach. Theory
,
44
(
4
), pp.
685
696
.
11.
Julien
,
C. J.
,
Poulachon
,
G.
, and
Duc
,
E.
, 2009, “
New Approach to 5-Axis Flank Milling of Free-Form Surfaces: Computation of Adapted Tool Shape
,”
Comput.-Aided Des.
,
41
(
12
), pp.
918
929
.
12.
Fromentin
,
G.
, and
Poulachon
,
G.
, 2010, “
Geometrical Analysis of Thread Milling—Part 2: Calculation of Uncut Chip Thickness
,”
Int. J. Adv. Manuf. Technol
,
49
(
1
), pp.
81
87
.
13.
Fromentin
,
G.
, and
Poulachon
,
G.
, 2010, “
Modeling of Interferences During Thread Milling Operation
,”
Int. J. Adv. Manuf. Technol
,
49
(
1
), pp.
41
51
.
14.
ISO 68-1:1998 standard, ISO general purpose screw threads—Basic profile—Part 1: Metric screw threads.
15.
ISO 965-1 standard, ISO general-purpose metric screw threads—Tolerances—Part 1: Principles and basic data
16.
ISO 965-2 standard, ISO general purpose metric screw threads—Tolerances—Part 2: Limits of sizes for general purpose external and internal screw threads—Medium quality.
You do not currently have access to this content.