Innovative methods of increasing the wear resistance of parts of transport machinery
Description: Wear resistance of parts of transport machinery. Methods for assessing the wear resistance of the working surfaces of parts. Nanotechnology in the processing of working surfaces of parts of transport machinery. Thermal and electroplasma methods of hardening the material of the working surface of parts to increase their wear resistance. Application of electroplating technologies for the application of wear-resistant coatings on the working surfaces of parts. Ion-plasma and plasma application of wear-resistant coatings on the working surfaces of parts. The use of low-viscosity lubricants and anti-wear additives to lubricants
Amount of credits: 5
Пререквизиты:
- Car production technology
Course Workload:
| Types of classes | hours |
|---|---|
| Lectures | 15 |
| Practical works | 30 |
| Laboratory works | |
| SAWTG (Student Autonomous Work under Teacher Guidance) | 75 |
| SAW (Student autonomous work) | 30 |
| Form of final control | Exam |
| Final assessment method | exam |
Component: Component by selection
Cycle: Base disciplines
Goal
- To study the theoretical concepts of surface treatment and modern technological processes for modifying the working surfaces of machine parts in order to ensure special operational properties
Objective
- to obtain knowledge about the basic methods and methods of increasing the wear resistance of parts of transport equipment, as well as obtaining reinforcing and protective coatings used in mechanical engineering
Learning outcome: knowledge and understanding
- knowledge of the basic methods and methods of increasing the wear resistance of parts of transport equipment, as well as obtaining reinforcing and protective coatings used in mechanical engineering
Learning outcome: applying knowledge and understanding
- Application of the acquired knowledge and skills in practice and in the study of other disciplines
Learning outcome: formation of judgments
- The ability to form judgments about the choice of the most effective method and way of increasing the wear resistance of parts of transport equipment
Learning outcome: communicative abilities
- Ability to solve tasks in cooperation with other members of the team
Learning outcome: learning skills or learning abilities
- Gaining skills in the study of such disciplines
Teaching methods
Technology of problem- and project-oriented learning
Assessment of the student's knowledge
Teacher oversees various tasks related to ongoing assessment and determines students' current performance twice during each academic period. Ratings 1 and 2 are formulated based on the outcomes of this ongoing assessment. The student's learning achievements are assessed using a 100-point scale, and the final grades P1 and P2 are calculated as the average of their ongoing performance evaluations. The teacher evaluates the student's work throughout the academic period in alignment with the assignment submission schedule for the discipline. The assessment system may incorporate a mix of written and oral, group and individual formats.
| Period | Type of task | Total |
|---|---|---|
| 1 rating | 1 exercise | 0-100 |
| 2 exercise | ||
| testing | ||
| 2 rating | 3 exercise | 0-100 |
| 4 exercise | ||
| testing | ||
| Total control | Exam | 0-100 |
The evaluating policy of learning outcomes by work type
| Type of task | 90-100 | 70-89 | 50-69 | 0-49 |
|---|---|---|---|---|
| Excellent | Good | Satisfactory | Unsatisfactory | |
| training | The work was completed in full, carefully, with the necessary explanations; the initial data are given; calculation results, units of measurement; conclusions. | The work was completed in full with minor comments, neatly; with the necessary explanations; the initial data are given; calculation results, units of measurement; conclusions. | The work was done with errors, not carefully enough; there are no necessary explanations; no source data; calculation results, units of measurement or conclusions. | The work was completed in full, carefully, with the necessary explanations; the initial data are given; calculation results, units of measurement; conclusions. |
| testing | 100-90% correct answers | 89-70% correct answers | 69-50% correct answers | 100-90% correct answers |
| exam | 1. Correct and complete answers to all theoretical questions are given; 2. The problem is completely solved; 3. The material is presented competently in compliance with a logical sequence | 1. Correct, but incomplete answers to all theoretical questions were given, minor errors or inaccuracies were made; 2. The problem was solved, but a minor error was made; 3. The material is presented competently in compliance with logical sequence. | 1. The answers to theoretical questions are correct in principle, but incomplete, there are inaccuracies in formulations and logical errors; 2. The problem is solved, but not completely; 3. The material is presented correctly, but the logical sequence is broken. | 1. Correct and complete answers to all theoretical questions are given; 2. The problem is completely solved; 3. The material is presented competently in compliance with a logical sequence |
Evaluation form
The student's final grade in the course is calculated on a 100 point grading scale, it includes:
- 40% of the examination result;
- 60% of current control result.
The final grade is calculated by the formula:
| FG = 0,6 | MT1+MT2 | +0,4E |
| 2 |
Where Midterm 1, Midterm 2are digital equivalents of the grades of Midterm 1 and 2;
E is a digital equivalent of the exam grade.
Final alphabetical grade and its equivalent in points:
The letter grading system for students' academic achievements, corresponding to the numerical equivalent on a four-point scale:
| Alphabetical grade | Numerical value | Points (%) | Traditional grade |
|---|---|---|---|
| A | 4.0 | 95-100 | Excellent |
| A- | 3.67 | 90-94 | |
| B+ | 3.33 | 85-89 | Good |
| B | 3.0 | 80-84 | |
| B- | 2.67 | 75-79 | |
| C+ | 2.33 | 70-74 | |
| C | 2.0 | 65-69 | Satisfactory |
| C- | 1.67 | 60-64 | |
| D+ | 1.33 | 55-59 | |
| D | 1.0 | 50-54 | |
| FX | 0.5 | 25-49 | Unsatisfactory |
| F | 0 | 0-24 |
Topics of lectures
- The importance of the surface in ensuring the reliability and durability of machine parts and the main characteristics of the surface layer
- Hardening by surface plastic deformation (SPD)
- Classification of SPD methods
- The use of SPD technology to improve the performance properties of machine parts
- Nanostructuring friction treatment
- Surface hardening using high-speed heating methods
- Surface hardening using highly concentrated energy sources
- Chemical and thermal treatment of steel
Key reading
- 1. Технологии повышения износостойкости в машиностроении : учебное пособие / М.А. Филиппов, А.В. Макаров, О.Ю. Шешуков, В.П. Швейкин ; М‑во науки и высш. образования РФ.— Екатеринбург : Изд-во Урал. ун-та, 2022. — 246 с.
Further reading
- 2. Елагина О. Ю. Технологические методы повышения износостойкости деталей машин : учебное пособие для вузов / О. Ю. Елагина. - М. : Логос, 2009. - 488 с.
