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Technical Briefs

Modeling of the Thread Milling Operation in a Combined Thread/Drilling Operation: Thrilling

[+] Author and Article Information
Martin B. G. Jun

Department of Mechanical and Industrial Engineering, University of Victoria, PO Box 3055 STN CSC, Victoria, BC, V8W 3P6, Canada

Anna Carla Araujo

Department of Mechanical and Industrial Engineering, Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Av. Maracanã 229, Maracanã 20271-110 - Rio de Janeiro, RJ - Brazil

J. Manuf. Sci. Eng 132(1), 014505 (Feb 12, 2010) (6 pages) doi:10.1115/1.4000944 History: Received July 10, 2008; Revised December 16, 2009; Published February 12, 2010; Online February 12, 2010

This paper investigates a thread making process called thrilling, which performs both drilling and thread milling with one tool. A chip thickness and mechanistic cutting force model has been developed for a thread milling operation with a thrilling tool. The model considers the complex geometry of a thrilling tool and the unique tool paths associated with the thread milling operation. Experiments have been conducted to validate the developed model. Comparison of the average torque and forces between experiment and simulation results shows that the model predicts the experimental results within 12% error.

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Copyright © 2010 by American Society of Mechanical Engineers
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References

Figures

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Figure 3

Thriller and M10 thread geometries

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Figure 4

Tool paths involved in thread milling operation

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Figure 5

Chip load and coordinate frames during thread milling operation

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Figure 7

Comparison between experiment and simulation for validation when N=1500 rpm and fr=0.015 mm/rev

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Figure 8

Comparison between experiment and simulation for validation when N=1500 rpm and fr=0.01 mm/rev

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Figure 1

A thrilling process (10)

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Figure 2

A thrilling tool geometry and discretization

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Figure 6

(a) Experimental setup and (b) typical thread milling torque and thrust

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