Gracious Ngaile

Physics-Informed Preform Design for Flashless 3D Forging via Material Point Backtracking and Finite Element Simulations

Ngaile, G., & Kumaran, K. (2025, June 18). Journal of Manufacturing and Materials Processing.

A Robust Bubble Growth Solution Scheme for Implementation in CFD Analysis of Multiphase Flows

Pang, H., & Ngaile, G. (2023, March 31). Computation.

Energy field assisted metal forming: Current status, challenges and prospects

Li, H., Peng, L. F., Meng, B., Xu, Z. T., Wang, L. L., Ngaile, G., & Fu, M. W. (2023, September 20). International Journal of Machine Tools and Manufacture.

Harnessing Hydrodynamic Cavitation for Surface Modification and Strengthening

Pang, H., & Ngaile, G. (2023, September 1). Journal of Micro and Nano-Manufacturing.

Improving Material Formability and Tribological Conditions through Dual-Pressure Tube Hydroforming

Ngaile, G., & Avila, M. (2023, July 2). Journal of Manufacturing and Materials Processing.

Tribology in manufacturing processes : selected peer-reviewed full text papers from the 9th International Conference on Tribology in Manufacturing Processes and Joining by Plastic Deformation (ICTMP2021 : November 24-26, 2021, Chennai, India

Baech, Switzerland: Scientific.Net, Trans Tech Publications Ltd.

Utilization of Secondary Jet in Cavitation Peening and Cavitation Abrasive Jet Polishing

Pang, H., & Ngaile, G. (2022, January 5). Micromachines.

Non-contact temperature control and stereo digital image correlation for high-temperature testing of miniature tubular specimens

Rahman, F., Ngaile, G., & Hassan, T. (2021, November 1). Review of Scientific Instruments, Vol. 11.

Optimized stereo digital image correlation setup for miniature round specimen: framework development and implementation

Rahman, F., Ngaile, G., & Hassan, T. (2021, April 29). Optics and Lasers in Engineering, Vol. 144, p. 106555.

A novel gripper for multiaxial mechanical testing of microtubes at elevated temperatures

Li, L., Chan, Y.-C., Ngaile, G., & Hassan, T. (2020, May 1). Review of Scientific Instruments.

Die Design Architecture for Enhancing Tool Life Via Manipulation of the Elastic Strain Field of the Dies During Extrusion Processes

Ngaile, G., & Rodrigues, D. S. (2020, August 31). Journal of Manufacturing Science and Engineering.

Formulation of SiO₂/oil nanolubricant for metal forming using hydrodynamic cavitation

Pang, H., & Ngaile, G. (2020, July 7). Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture.

Modeling of a valve-type low-pressure homogenizer for oil-in-water emulsions

Pang, H., & Ngaile, G. (2020, December 4). Chemical Engineering and Processing - Process Intensification.

Deformation Processes

In Y. Huang, L. Wang, & S. Y. Liang (Eds.), Handbook on Manufacturing (pp. 277–382).

Development of a non-isothermal forging process for hollow power transmission shafts

Pang, H., & Ngaile, G. (2019, October 3). Journal of Manufacturing Processes.

Development of scanning electron microscope-compatible multiaxial miniature testing system

Rahman, F., Ngaile, G., & Hassan, T. (2019, April 25). Measurement Science and Technology, Vol. 30, p. 105902.

High injection pressure diesel sprays from a piezoelectric fuel injector

Wang, L., Lowrie, J., Ngaile, G., & Fang, T. (2019, February 25). Applied Thermal Engineering, Vol. 152, pp. 807–824.

Development of a Non-isothermal Forging Process for Hollow Power Transmission Shafts

Procedia Manufacturing, 26, 1509–1516.

Investigation of energy storage in bolted joint components and the development of a geometry selection design tool for Belleville washers

Carcaterra, B., & Ngaile, G. (2018, October 25). Engineering Structures.

A Novel Hybrid Heating Method for Mechanical Testing of Miniature Specimens at Elevated Temperature

Li, L., Ngaile, G., & Hassan, T. (2017, February 11). Journal of Micro and Nano-Manufacturing.

Analytical modeling of hydrodynamic lubrication in a multiple-reduction drawing die

Journal of Manufacturing Processes, 27, 291–303.

Development of a Non-isothermal Forging Process for Hollow Axle Shafts

Procedia Engineering, 207, 454–459.

Punch design for floating based micro-tube hydroforming die assembly

Journal of Materials Processing Technology, 253, 168–177.

Scalability of conventional tube hydroforming processes from macro to micro/meso

Lowrie, J., & Ngaile, G. (2017, January 6). Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture.

Weight reduction of heavy-duty truck components through hollow geometry and intensive quenching

Lowrie, J., Pang, H., & Ngaile, G. (2017, May 3). Journal of Manufacturing Processes.

A Novel Hybrid Heating Method for Elevated Temperature Mechanical Testing of Miniature Specimens

Li, L., Ngaile, G., & Hassan, T. (2016, June 27).

Analytical Modeling of Hydrodynamic Lubrication in a Multiple-reduction Drawing Die

Lowrie, J., & Ngaile, G. (2016, January 1). Procedia Manufacturing.

New punch design for the elimination of punch ejection load through manipulation of the elastic strain field in the punch nose

Lowrie, J., & Ngaile, G. (2016, March 31). Journal of Manufacturing Processes.

Preliminary Investigation of the Process Capabilities of Hydroforging

Alzahrani, B., & Ngaile, G. (2016, January 12). Materials.

Challenges in teaching modern manufacturing technologies

European Journal of Engineering Education, 40(4), 432–449.

Novel Extrusion Punch Design for Improved Lubrication and Punch Ejection

Lowrie, J., & Ngaile, G. (2015, June 8).

Novel extrusion punch design for elimination of punch ejection load and enhanced lubrication

Manufacturing Letters, 5, 12–16.

Analytical and Numerical Modeling of Thick Tube Hydroforging

Procedia Engineering, 81, 2223–2229.

Development of chemically produced hydrogen energy-based impact bonding process for dissimilar metals

Ngaile, G., Lohr, P., Lowrie, J., & Modlin, R. (2014, August 6). Journal of Manufacturing Processes.

Die-less hydroforming of multi-lobe tubular structures

Hummel, S., & Ngaile, G. (2014, April 29). Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture.

Enhancement of Tribological Performance via Innovative Tooling Design for Extrusion Processes

Lowrie, J. B., & Ngaile, G. (2014, June 9).

High-velocity impact bonding of dissimilar metals by chemically produced hydrogen energy

Manufacturing Letters, 2(2), 40–43.

Editorial

Journal of Manufacturing Processes, 15(2), 181–182.

Hydroforming Tribology

In Encyclopedia of Tribology (pp. 1765–1774).

Part 1: Analytical modeling of symmetric multi-nose tube hydroforming

Journal of Manufacturing Processes, 15(2), 273–286.

Part 2: Analytical modeling of regular planar polygon tube hydroforming as a special case of symmetric multi-nose tube hydroforming

Journal of Manufacturing Processes, 15(2), 287–297.

Advances in Plastic Forming of Metals

Ngaile, G., & Kinsey, B. (2011, December 1). Journal of Manufacturing Science and Engineering.

Influence of ultrasonic vibration on micro-extrusion

Bunget, C., & Ngaile, G. (2011, January 6). Ultrasonics.

Optimal load path input in tube hydroforming machines

Ngaile, G., & Welch, G. (2011, December 13). Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture.

Preform Design for Tube Hydroforming Based on Wrinkle Formation

Yang, C., & Ngaile, G. (2011, December 1). Journal of Manufacturing Science and Engineering.

Real-Time Friction Error Compensation in Tube Hydroforming Process Control

Ngaile, G., Yang, C., & Kilonzo, O. (2011, December 1). Journal of Manufacturing Science and Engineering.

Database for Real-Time Loading Path Prediction for Tube Hydroforming Using Multidimensional Cubic Spline Interpolation

Ghosh, A., Deshmukh, K., & Ngaile, G. (2010, January 1).

Database for real-time loading path prediction for tube hydroforming using multidimensional cubic spline interpolation

Ghosh, A., Deshmukh, K., & Ngaile, G. (2010, September 28). Journal of Materials Processing Technology.

Preform design for forging and extrusion processes based on geometrical resemblance

Yang, C., & Ngaile, G. (2010, February 17). Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture.

Analytical Model for the Characterization of the Guiding Zone Tribotest for Tube Hydroforming

Ngaile, G., & Yang, C. (2009, March 18). Journal of Manufacturing Science and Engineering.

Application of Finite Element Method in Metal forming Tribology

Transaction of the North American Manufacturing Research Institution of SME, 37, 379–386.

Analytical model for characterizing the pear-shaped tribotest for tube hydroforming. Part 1

Ngaile, G., & Yang, C. (2008, July 1). Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture.

Analytical model for planar tube hydroforming: Prediction of formed shape, corner fill, wall thinning, and forming pressure

Yang, C., & Ngaile, G. (2008, June 1). International Journal of Mechanical Sciences.

Applications of analytical model for characterizing the pear-shaped tribotest for tube hydroforming. Part 2

Ngaile, G., & Yang, C. (2008, July 1). Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture.

Influence of Ultrasonic Vibration on Microforming

Transaction of the North American Manufacturing Research Institution of SME, 36, 137–144.

Performance of Graphite and Boron-Nitride-Silicone Based Lubricants and Associated Lubrication Mechanisms in Warm Forging of Aluminum

Ngaile, G., & Botz, F. (2008, April 1). Journal of Tribology.

Tribological aspects in hydroforming

In M. Koç (Ed.), Hydroforming for Advanced Manufacturing (pp. 144–178).

Ultrasonic microforming

Saarbrucken: VDM Verlag Dr. Muller.

Formulation of polymer-based lubricant for metal forming

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 221(4), 559–568.

A tribo-testing method for high performance cold forging lubricants

Wear, 262(5-6), 684–692.

Development of Polymeric Based Lubricant for Cold Forging Processes

Transaction of the North American Manufacturing Research Institution of SME, 34, 563–570.

Enhancing Tribological Conditions in Tube Hydroforming by Using Textured Tubes

Ngaile, G., Gariety, M., & Altan, T. (2006, March 22). Journal of Tribology.

Evaluation of new cold forging lubricants without zinc phosphate precoat

Gariety, M., Ngaile, G., & Altan, T. (2006, July 26). International Journal of Machine Tools and Manufacture.

Cold and Hot Metal Forging: Fundamentals and Applications

Materials Park, OH: ASM International.

Friction and Lubrication

In T. Altan, G. Ngaile, & G. Shen (Eds.), Cold and Hot Forging: Fundamentals and Applications.

Near-Net shape forging and new development

In T. Altan, G. Ngaile, & G. Shen (Eds.), Cold and Hot Forging: Fundamentals and Applications.

Plastic Deformation: Complex state of stress and flow rules

In T. Altan, G. Ngaile, & G. Shen (Eds.), Cold and Hot Forging: Fundamentals and Applications.

Plastic Deformation: Strain and Strain Rate

In T. Altan, G. Ngaile, & G. Shen (Eds.), Cold and Hot Forging: Fundamentals and Applications.

Process Modeling in Impression-Die Forging Using Finite-Element Analysis

In T. Altan, G. Ngaile, & G. Shen (Eds.), Cold and Hot Forging: Fundamentals and Applications.

Cold and hot forging: Fundamentals and applications

Materials Park, Ohio: ASM International.

Evaluation of stamping lubricants at various temperature levels using the ironing test

Chandrasekharan, S., Palaniswamy, H., Jain, N., Ngaile, G., & Altan, T. (2004, November 12). International Journal of Machine Tools and Manufacture.

Progressive Die Sequence Design for Deep Drawing Round Cups Using Finite Element Analysis

Altan, T., Jain, N., Shi, X., Ngaile, G., Pax, B., Harman, B., & Homan, G. (2004, December 26). Journal of Manufacturing Science and Engineering.

Design of a fastener clinching process using FEM

Transaction of the North American Manufacturing Research Institution of SME, 31, 17–24.

Determination of flow stress for sheet metal forming using the viscous pressure bulge (VPB) test

Journal of Materials Processing Technology, 146, 1–7.

Finite element simulation of magnesium alloy sheet forming at elevated temperatures

Journal of Materials Processing Technology, 146, 52–60.

Hydraulic crimping: Application to the assembly of tubular components

Journal of Materials Processing Technology, 146, 44–51.

Lubrication in tube hydroforming (THF). Part I: Lubrication mechanisms and development of model tests to evaluate lubricants and die coatings in the transition and expansion zones

Journal of Materials Processing Technology, 146, 108–115.

Lubrication in tube hydroforming (THF). Part II: Performance evaluation of lubricants using LDH test and pear-shaped tube expansion test

Journal of Materials Processing Technology, 146, 116–123.

Optimization of blank dimensions to reduce springback in the flexforming process

Journal of Materials Processing Technology, 146, 28–34.

Optimization of mechanical crimping to assemble tubular components

Journal of Materials Processing Technology, 146, 35–43.

Optimizing tube hydroforming using process simulation and experimental verification

Journal of Materials Processing Technology, 146, 137–143.

Simultaneous Determination of Flow Stress and Interface Friction by Finite Element Based Inverse Analysis Technique

Cho, H., Ngalle, G., & Altan, T. (2003, January 1). CIRP Annals.

Lubrication in Tube Hydroforming (THF)

Transaction of the North American Manufacturing Research Institution of SME, 29, 51–57.

Evaluation Method of Tribological Conditions in Net Shape Cold Forging of Products with Concave-Convex Profiles

Japanese Technology of Plasticity, 41(477), 1036–1040.

Cold forging tribo-test based on variation of deformation patterns at the tool-work piece interface

Journal of Tribologist and Lubrication Engineers (STLE), 23–31.

Characterization of Adhesive Strength of Phosphate Coatings in Cold Metal Forming

Saiki, H., Ngaile, G., & Ruan, L. (1997, October 1). Journal of Tribology.

Influence of die geometry on the workability of conversion coatings combined with soap lubricant in cold forming of steels

Journal of Materials Processing Technology, 63(1-3), 238–243.

A New Prototype of a pineapple peeling machine

Uhandisi Journal, 19(2), 117–132.