Subject name (in Hungarian, in English) | Metal Forming | |||
Metal Forming
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Neptun code | BMEGEMTAGE1 | |||
Type | study unit with contact hours | |||
Course types and number of hours (weekly / semester) | course type: | lecture (theory) | exercise | laboratory excercise |
number of hours (weekly): | 2 | - | 1 | |
nature (connected / stand-alone): | - | - | coupled | |
Type of assessments (quality evaluation) | mid-term grade | |||
ECTS | 4 | |||
Subject coordinator | name: | Dr. Katula Levente Tamás | ||
post: | adjunct | |||
contact: | katula@att.bme.hu | |||
Host organization | Department of Material Science and Engineering | |||
http://www.att.bme.hu | ||||
Course homepage | http://www.att.bme.hu/oktatas/bmegemtage1/ | |||
Course language | english | |||
Primary curriculum type | mandatory | |||
Direct prerequisites | Strong prerequisite | none | ||
Weak prerequisite | ||||
Parallel prerequisite | ||||
Milestone prerequisite | at least obtained 0 ECTS | |||
Excluding condition | none |
Aim
The aim of the course is to provide organically related knowledge and methods for planning the technological tasks of the subject area based on the basic knowledge of continuum mechanics of the plastic forming process, the related basic concepts of tribology and the concept of damage/formability. An important goal is to fix the knowledge to be acquired using the toolbox of process modeling (finite element calculations), which is achieved by the student through the solution of individual design task. In addition to the theoretical knowledge, the task of the exercises is to investigate each sub-topic with the help of experiments in the field of friction, formability, deep drawing of plates and bulk forming operations.
Learning outcomes
Competences that can be acquired by completing the course
Knowledge
The student has a comprehensive knowledge of the basic mechanical equations of motion of a body suffering from large-scale plastic deformation, the concepts of deformation and deformation velocity. The student knows the measures of stresses in the deformed body, is able to correctly apply the relationships between stresses and deformations, taking into account the material laws describing isotropic and anisotropic material behaviour. The student is aware of flow rules and their application to solve forming technology tasks. The student knows the interactions on the surface of the contacting materials, the different friction law equations. Knows the characteristics of cold and hot forming processes. Knows the effects, advantages and disadvantages of processes on material structure. The student is aware of the material structure processes that take place during plastic forming and how they are taken into account during production. Understands the process of deep drawing and the stresses that build up in the process and the role of anisotropy. Knows the steps of the cutting process, is able to determine the cutting force in the case of board shears and blanking/punching. Knows the process and benefits of fine blanking. Knows the bending processes. Knows the phenomenon of spring back and ways to eliminate it. Using the standard, determines the dimensions of the forged piece by knowing the geometry of the machined part. Determines the characteristics of aluminum forging, the advantages of thixo-forging. Determines the force and work requirements of forming processes.
Ability
Distinguishes between different modes of deformation. Able to distinguish between different types of material behavior (ideally elastic, perfectly plastic, and elastic-plastic). Apply the flow rules correctly to solve forming problems. Able to distinguish between different cases of friction. Able to calculate the forming steps of simple cold bulk forming processes and the resulting stresses. Apply damage descriptive theories to predict material failure. Able to calculate the forming steps of deep drawing processes and the resulting stresses. Calculates cutting force for straight and beveled table shears, as well as for blanking/punching operations. Determines the effect of spring back at bending and the possible ways to eliminate it. Able to define the forming steps of a workpiece to be forged in closed die. Defines the temperature range required for forming for both aluminum and steel workpieces. Based on the available information, identifies the group of forming machines most suitable for the forming process and the parameters of the corresponding machine.
Attitude
The student constantly monitors his/her work, results and conclusions. Continuously expands his/her knowledge on the design of plastic forming technologies. Open to the use of information technology tools. Develops the ability to provide accurate and error-free task solutions, engineering accuracy and precision. Publishes personal opinions and views without offending others.
Independence and responsibility
Collaborates with the instructor and fellow students to expand knowledge. Accepts well-founded professional and other critical remarks. In some situations, as part of a team, works with your fellow students to solve tasks. Makes responsible, well-based decision on the basis of the acquired knowledge and the performed analysis. Committed to the principles and methods of the system-based thinking and problem solving.
Teaching methodology
During the teaching of the subject, three well-separable parts can be distinguished: lectures, semester design task and laboratory exercises. The lecture knowledge, a part of the curriculum is practiced by measurement, the technological processes of plastic deformation are planned in the semester task with analytical formulas or by using the modeling toolbox, while measurements are performed in the laboratory exercises. The lectures basically introduce the students to the information determined by the knowledge competence elements using the technique of frontal education. Lectures include slide shows. It is also possible to use a finite element design system for the individual solution of the semester design task. Ongoing consultation ensures targeted progress, while the use of design software ensures skill-level practice in modeling. Laboratory exercises are for the skill-level acquisition of a specific part of the curriculum.
Support materials
Textbook
Gillemot-Ziaja: Fémek képlékeny alakítása, Tankönyvkiadó, Budapest, 1977. (J4-586)
Avitzur, B .: Handbook of metal-forming processes, John Wiley and Sons, New York, 1983, [ISBN 100471034746]
Sándor Kaliszky: Képlékenységtan, Elmélet és mérnöki alkalmazások, Akadémiai Kiadó, Budapest, 1975, [ISBN 9630506521]
Lecture notes
Online material
http://www.att.bme.hu/oktatas/BMEGEMTAGE1/letoltes
Validity of the course description
Start of validity: | 2021. September 1. |
End of validity: | 2025. July 15. |
General rules
During the teaching of the subject, three well-separable parts can be distinguished: lectures, semester design task and laboratory exercises. The lecture knowledge, a part of the curriculum is practiced by measurement, the technological processes of plastic deformation are planned in the semester design task with analytical formulas or by using the modeling toolbox, while measurements are performed in the laboratory exercises. The lectures basically introduce the students to the information determined by the knowledge competence elements using the technique of frontal education. Lectures include slide shows. It is also possible to use a finite element design system for the individual solution of the semester design task. Ongoing consultation ensures targeted progress, while the use of design software ensures skill-level practice in modeling. Laboratory exercises are for the skill-level acquisition of a specific part of the curriculum.
Assessment methods
Detailed description of mid-term assessments
Mid-term assessment No. 1 | ||
Type: | summative assessment | |
Number: | 2 | |
Purpose, description: | Summative assessment collectively examines and measures students’ learning outcomes defined by knowledge and ability type competencies. Accordingly, the summative assessment assesses the acquisition of the designated theoretical knowledge as well as the existence of the knowledge and skills applied in the laboratory practice. It will be completed on the dates specified in the study performance assessment plan, expected to be in the 6th and 13th weeks of education. A maximum of 100 points can be obtained for each summary performance evaluation. | |
Mid-term assessment No. 2 | ||
Type: | formative assessment, project-based, complex | |
Number: | 1 | |
Purpose, description: | The basic goal of partial performance assessment is to examine the existence of learning outcomes belonging to the competence group of knowledge, ability, attitude, independence and responsibility. The way to do this is to solve and defend an individual design task independently with the help of consultation. The tasks come from a variety of topics. The content and form requirements and evaluation principles of the task are included in the task description. A total of 100 points can be obtained with the semester assignment. |
Detailed description of assessments performed during the examination period
The subject does not include assessment during the examination period.
The weight of mid-term assessments in signing or in final grading
ID | Proportion |
---|---|
Mid-term assessment No. 1 | 67 % |
Mid-term assessment No. 2 | 33 % |
The weight of partial exams in grade
There is no exam belongs to the subject.
Determination of the grade
Grade | ECTS | The grade expressed in percents |
---|---|---|
very good (5) | Excellent [A] | above 91 % |
very good (5) | Very Good [B] | 87 % - 91 % |
good (4) | Good [C] | 75 % - 87 % |
satisfactory (3) | Satisfactory [D] | 63 % - 75 % |
sufficient (2) | Pass [E] | 50 % - 63 % |
insufficient (1) | Fail [F] | below 50 % |
The lower limit specified for each grade already belongs to that grade.
Attendance and participation requirements
The lack of the value means that there is no attendance requirement.
At least 76% of laboratory practices (rounded down) must be actively attended.
Special rules for improving, retaken and replacement
The special rules for improving, retaken and replacement shall be interpreted and applied in conjunction with the general rules of the CoS (TVSZ).
Need mid-term assessment to invidually complete? | ||
yes | ||
Can the submitted and accepted partial performance assessments be resubmitted until the end of the replacement period in order to achieve better results? | ||
yes | ||
The way of retaking or improving a summary assessment for the first time: | ||
each summative assessment can be retaken or improved | ||
Is the retaking-improving of a summary assessment allowed, and if so, than which form: | ||
retake or grade-improving exam possible for each assesment separately | ||
Taking into account the previous result in case of improvement, retaken-improvement: | ||
new result overrides previous result | ||
The way of retaking or improving a partial assessment for the first time: | ||
partial assesment(s) in this group can be improved or repeated once up to the end of the repeat period | ||
Completion of unfinished laboratory exercises: | ||
missed laboratory practices must be performed in the repeat period | ||
Repetition of laboratory exercises that performed incorrectly (eg.: mistake in documentation) | ||
incorrectly performed laboratory practice (e.g. Incomplete/incorrect report) can be corrected by repeating the practice |
Study work required to complete the course
Activity | hours / semester |
---|---|
participation in contact classes | 42 |
preparation for laboratory practices | 14 |
preparation for summary assessments | 32 |
elaboration of a partial assessment task | 30 |
additional time required to complete the subject | 2 |
altogether | 120 |
Validity of subject requirements
Start of validity: | 2021. June 1. |
End of validity: | 2025. July 15. |
Primary course
The primary (main) course of the subject in which it is advertised and to which the competencies are related:
Common on all MSc programmes
Link to the purpose and (special) compensations of the Regulation KKK
This course aims to improve the following competencies defined in the Regulation KKK:
Knowledge
Ability
Attitude
Independence and responsibility
Prerequisites for completing the course
Knowledge type competencies
(a set of prior knowledge, the existence of which is not obligatory, but greatly facilitates the successful completion of the subject) |
none |
Ability type competencies
(a set of prior abilities and skills, the existence of which is not obligatory, but greatly contributes to the successful completion of the subject) |
none |