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Updated: Feb 23, 2026
09:12
Production of Single Tracks of Ti-6Al-4V by Directed Energy Deposition to Determine the Layer Thickness for Multilayer Deposition
Published on: March 13, 2018
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Drilling High Precision Holes in Ti6Al4V Using Rotary Ultrasonic Machining and Uncertainties Underlying Cutting
M A K Chowdhury1, A M M Sharif Ullah2, Saqib Anwar3
1Industrial Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia. mchowdhury@ksu.edu.sa.
Materials (Basel, Switzerland)
|September 13, 2017
Summary
Rotary ultrasonic machining (RUM) optimizes drilling of difficult-to-cut titanium alloys. This study identifies optimal machining conditions for improved precision and reduced wear in aerospace and automotive applications.
Area of Science:
- Materials Science
- Manufacturing Engineering
- Mechanical Engineering
Background:
- Titanium alloys like Ti6Al4V are critical in aerospace and automotive sectors.
- Machining these alloys presents significant challenges due to their hardness.
- Improving drilling precision and efficiency for Ti6Al4V is an ongoing area of research.
Purpose of the Study:
- To systematically analyze the impact of machining conditions on drilling performance of Ti6Al4V.
- To quantify the uncertainty in performance parameters using fuzzy numbers.
- To determine optimal machining parameters for rotary ultrasonic machining (RUM).
Main Methods:
- Experimental drilling using rotary ultrasonic machining (RUM).
- Design of Experiments (DOE) to vary machining parameters (ultrasonic power, feed rate, spindle speed, tool diameter).
- Analysis of performance metrics: cutting force, tool wear, overcut error, and cylindricity error.
- Application of possibility distributions (trapezoidal fuzzy numbers) to model uncertainty.
Main Results:
- Established the influence of each machining condition on cutting force, tool wear, and geometric errors.
- Quantified the uncertainty associated with performance parameters using fuzzy number representation.
- Identified specific combinations of machining parameters that yield superior drilling outcomes.
Conclusions:
- Rotary ultrasonic machining (RUM) is a viable method for high-precision drilling of Ti6Al4V.
- Machining conditions significantly affect drilling performance and error.
- The fuzzy-based approach effectively determines optimal parameters under uncertainty.
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