Doctoral thesis seminar for PhD student Nguyen Hong Tien, majoring in Mechanical Engineering, School of Mechanical and Automotive Engineering

On the afternoon of January 3rd, 2025, the School of Mechanical and Automotive Engineering, Hanoi University of Industry organized a doctoral thesis seminar for PhD student Nguyen Hong Tien, chaired by Assoc. Prof. Dr. Pham Van Bong and with the participation of many scientists and experts who are both inside and outside the School.

PhD student Nguyen Hong Tien presented convincingly his doctoral thesis research on the topic "Research on improving the wear resistance of high-load press screws by combining design calculation solutions with advanced surface treatment" under the scientific guidance of Assoc. Prof. Dr. Nguyen Tuan Linh - Head of Office of Academic Affairs, Science – Technology and Student Support, School of Mechanical and Automotive Engineering and Dr. Nguyen Van Thien - Vice Rector of Hanoi University of Industry.

PhD student Nguyen Hong Tien affirmed that the main objective of the topic is to improve the wear resistance of high load press screws, thereby contributing to:

- Increase equipment life: High wear resistance screws will operate more stably and last longer, minimizing the need for replacement and maintenance.

- Improve production efficiency: Efficient screw presses help maintain stable production capacity, avoiding interruptions due to breakdowns.

- Reduce operating costs: Extending the life and increase the efficiency of the screw press saves on operating, maintenance and replacement costs.

The key contributions of this study include:

- Design selection: Proposing suitable profile and geometric parameters for high load screw to improve wear resistance and increase durability in harsh working environment.

- Modern simulation: Building a simulation model of the screw press's working process, helping to better understand the wear and deformation mechanisms, thereby providing optimal solutions.

- Advanced surface treatment: Researching and verifying the effectiveness of advanced surface treatment technologies in improving wear resistance of screw presses.

- Multidisciplinary integration: Connecting science, manufacturing technology and surface treatment engineering, creating a holistic approach to improving design and enhancing wear resistance.

Application in practice

This research has high practical significance, applicable in clean coal production and many other industries. The research results contribute to:

- Increase productivity and product quality: Efficient screw press helps to improve productivity and product quality.

- Reduce production costs: Save on operating, maintenance and equipment replacement costs.

PhD student Nguyen Hong Tien presented his thesis at the seminar.

The presentation of PhD Nguyen Hong Tien convinced the council with a comprehensive approach, combining theoretical research, simulation and experimentation. PhD student Nguyen Hong Tien made new contributions of the thesis: Designing a pressing chamber - pressing screw system to ensure technical requirements and optimize design parameters; Building a computer simulation model to evaluate the working process of the pressing screw; Determining experimental mathematical models for the pressing screw to control product quality and reduce production costs.

Overview of the PhD thesis seminar

The Council appreciated and proposed improvements.

The experts had lively, frank and objective discussions, giving honest assessments of the Thesis. The Council acknowledged the Thesis's suitability to the field of Mechanical Engineering, and highly appreciated the novelty, scientific and practical significance of the topic. In addition to the advantages, the experts also pointed out some points that need to be edited and improved to achieve better quality for the Thesis.

Assoc. Prof. Dr. Nguyen Tuan Linh (Instructor 1) and the PhD student sent their sincere thanks to the experts for their valuable comments. The PhD student and the supervisors committed to receiving and revising the Thesis according to the experts' comments.

The speech of Assoc. Prof. Dr. Nguyen Tuan Linh - Head of Office of Academic Affairs, Science – Technology and Student Support, School of Mechanical and Automotive Engineering

At the end of the seminar, Assoc. Prof. Dr. Pham Van Bong - Chair of the seminar summarized the comments and suggestions of the experts. He affirmed that the thesis basically met the content requirements of a doctoral thesis in engineering. However, the Council also suggested that the doctoral candidate should seriously revise the thesis according to the Council's comments before entering the basic level defense.

The speech of Assoc. Prof. Dr. Pham Van Bong at the seminar

The doctoral thesis seminar of PhD student Nguyen Hong Tien was a great success, affirming the positive contribution of research in solving practical problems of the mechanical engineering industry.

HERE ARE SOME PHOTOS AT THE DOCTORAL THESIS SEMINAR OF PhD STUDENT: