Educational guide
IDENTIFYING DATA 2024_25
Subject MANUFACTURING ENGINEERING Code 00708022
Study programme
0708 - GRADO EN INGENIERÍA MECÁNICA
Descriptors Credit. Type Year Period
6 Compulsory Third First
Language
Castellano
Prerequisites
Department ING.MECANICA,INFORMAT.AEROESP.
Coordinador
FERNÁNDEZ ABIA , ANA ISABEL
E-mail aifera@unileon.es
prodrg@unileon.es
Lecturers
FERNÁNDEZ ABIA , ANA ISABEL
RODRIGUEZ GONZALEZ , PABLO
Web http://
General description This subject studies the main manufacturing processes of metal casting, polymer processing, plastic deformation of metals and joining processes. It is mainly focused on the forming of metal and plastic components in industrial environments. The fundamentals and characteristics of the manufacturing processes and their relationship with the final structure of the materials and mechanical properties of the parts obtained are studied.
Tribunales de Revisión
Tribunal titular
Cargo Departamento Profesor
Presidente ING.MECANICA,INFORMAT.AEROESP. BARREIRO GARCIA , JOAQUIN
Secretario ING.MECANICA,INFORMAT.AEROESP. RODRIGUEZ MATEOS , PABLO
Vocal ING.MECANICA,INFORMAT.AEROESP. MARTINEZ PELLITERO , SUSANA
Tribunal suplente
Cargo Departamento Profesor
Presidente FERNANDEZ ROBLES , LAURA
Secretario ING.MECANICA,INFORMAT.AEROESP. FERNANDEZ DIAZ , RAMON ANGEL
Vocal ING.MECANICA,INFORMAT.AEROESP. CASTEJON LIMAS , MANUEL

Competencias
Code  
A18151
A18163
A18164
B5632
B5634
B5643
B5645
B5646
C2 CMECES2 That students know how to apply their knowledge to their work or vocation in a professional manner and possess the skills that are usually demonstrated through the development and defense of arguments and the resolution of problems within their area of study.
C5 CMECES5 That students have developed those learning skills necessary to undertake further studies with a high degree of autonomy

Learning aims
Competences
The student knows and understands the fundamentals and characteristics of manufacturing processes. A18151
 B5634
B5645
B5646
The student knows the relationship between the processing and the final structure obtained in the materials and its influence on the mechanical properties. A18163
 B5634
B5645
B5646
 C5
The student analytically solves problems related to manufacturing processes considering the technological parameters. A18164
 B5632
B5643
 C2

Contents
Topic Sub-topic
I: INTRODUCTION TO MANUFACTURING ENGINEERING. 1: SELECTION OF THE MANUFACTURING PROCESS.
Analysis of the factors involved in process selection. Case studies.

Topic 2: TRENDS IN MANUFACTURING.
Manufacturing automation. Sustainable manufacturing.
2. METAL CASTING 1: FUNDAMENTALS OF METAL CASTING.
Description of the casting process and characteristics of the products obtained. Mold feeding system: design and calculation. Solidification and cooling. Defects.

2: METAL CASTING PROCESSES.
Disposable mold: sand casting, shell casting, lost foam process, precision casting, lost wax casting. Permanent mold: die casting, vacuum casting, low pressure casting, injection molding.
3. POLYMER PROCESSING 1: INTRODUCTION TO POLYMERS.
General characteristics of polymers. Types of plastics. Additives. Polymer transformation processes.

2: EXTRUSION OF PLASTICS.
The extrusion process. Configuration of an extruder. Extrusion analysis. Configuration of the dies. Extrusion processes.

3: PLASTICS INJECTION.
The injection process. Injection machines. Stages of the process. Molds. Main defects in the parts. Other variants of the injection process.

4: OTHER PLASTICS TRANSFORMATION PROCESSES.
Compression molding. Transfer molding. Blow molding. Rotational molding. Thermoforming.
4. FORMING AND SHAPING PROCESSES 1: FUNDAMENTALS OF PLASTIC DEFORMATION.
Processes and products. Elastic-plastic behavior of metals. Influence of temperature on plastic deformation. Influence of the strain rate. Superplasticity.

2: PLASTIC DEFORMATION PROCESSES OF METALS.
Rolling: flat rolling and its analysis; rolling defects; rolling mills; form rolling. Forging: characteristics of forged products; forging without die, with open die and closed die; other forging operations; design of dies for forging. Extrusion: types of extrusion; flow patterns in extrusion; defects of extruded parts. Drawing and wire drawing processes.

Topic 3: SHEET METAL FORMING.
Shearing. Sheet metal characteristics and formability. Bending. Deep Drawing.
1. JOINING PROCESSES 1: FUSION WELDING PROCESSES.
Oxyfuel-gas welding. Arc welding with non-consumable electrode. Arc welding with consumable electrode. Electrodes for arc welding. Quality and defects of welded joints.

2: RESISTANCE WELDING.
Parameters. Resistance spot welding. Resistance seam welding. Other variants.

3: ROBOTIC WELDING.
Description of a welding robot. Robotic welding parameters. Programming of a welding seam.

4: MECHANICAL JOININGS AND ADHESIVES.
Threaded joints. Mechanical fastening. Adhesive-bonding. Types of adhesives. Surface preparation and design of adhesive joints.

Planning
Methodologies  ::  Tests
  Class hours Hours outside the classroom Total hours
Problem solving, classroom exercises 10 0 10
 
Seminars 2 0 2
Assignments 0 30 30
Laboratory practicals 14 4 18
 
Lecture 28 0 28
 
Practical tests 4 26 30
Objective short-answer tests 2 30 32
 
(*)The information in the planning table is for guidance only and does not take into account the heterogeneity of the students.

Methodologies
Methodologies   ::  
  Description
Problem solving, classroom exercises In order to fix the knowledge, the teacher will dedicate some hours to the resolution of exercises and problems. A series of problems will be proposed to be solved by the teacher and others to be solved by the student.
Seminars A seminar will be held, given by the CEDINOX group (Association for Research and Development of Stainless Steel), where the study of stainless steel and the most suitable manufacturing processes for this type of materials and their applications will be studied in depth.
Assignments A team work will be carried out on a real case of manufacturing a product or component. For this purpose, a company whose activity is related to the manufacture of a part or product must be visited. Students must submit a report of the work and make an oral presentation of it.
Laboratory practicals In the practical sessions (groups B3), students will work with industrial equipment and specific software used for different manufacturing processes. During the development of these practices or at the end of them, students will perform a practical exercise or answer a questionnaire to evaluate the use of these practical sessions. Attendance to the practical sessions is mandatory to obtain a grade in this part.
Lecture The lectures will have an eminently theoretical content and will address the fundamental concepts of the subject with a technological approach. During these sessions, the professor will use slides that he will leave for the students beforehand on the Moodle platform.

Personalized attention
 
Lecture
Problem solving, classroom exercises
Assignments
Description
By appointment, the teacher will attend to the student, solving any doubts. The tutorials will be held in person or using email or moodle forum.

Assessment
  Description Qualification
Laboratory practicals Students who have attended the practical sessions will be evaluated by completing a questionnaire or practical exercise. 15%
Assignments A team work will be carried out on a real case of manufacturing a product or component. This work will be evaluated according to a rubric that will be available to the students. The work may be reviewed with an anti-plagiarism program that can perform checks between the work of the students of the current and previous call and against external sources. If plagiarism is detected, the work will not be graded. 20%
Objective short-answer tests For the assessment of theoretical knowledge, two tests will be given during the semester. The tests will consist of short answers to theoretical questions or multiple-choice questions. 40%
Practical tests For the evaluation of the applied knowledge, two tests will be carried out during the semester. The tests will consist of solving problems and practical exercises. 25%
 
Other comments and second call

FIRST CALL:

To pass the course it will be a necessary but not sufficient condition to obtain a minimum grade of 3 out of 10 in each of the tests carried out in the block "Objective short-answer tests" and "Practical tests". In case of reaching the minimum in each of these tests, the final grade will be the result of the sum of all the grades obtained throughout the course in all the activities carried out. The result must be equal or higher than 5 out of 10 to obtain a passing grade or higher. The final grade of the students who have not reached the minimums to pass the 1st call, will be obtained from the sum of the block "Objective short-answer tests" and "Practical tests" discarding the grade of the rest of the tests.

SECOND CALL:

"Objective short-answer tests" and "Practical tests": In case of having reached the minimums in the tests taken in these blocks in the first call, the student will keep his grade for the 2nd call and will only have to take the exam of the tests in which the minimums have not been reached.

"Laboratory practicals" and "Assignments": If the Laboratory practicals and/or Assignments have been carried out in the continuous evaluation, their grade will be kept for the 2nd call. In case of not having done them, the student will not have the option of grading in that part

.

Sources of information
Access to Recommended Bibliography in the Catalog ULE

Basic Groover, Mikell P., Fundamentos de manufactura moderna, Prentice-Hall Hispanoamericana. ,
S. Kalpakjian; S.R. Schmid, Manufactura, ingeniería y tecnología, Prentice Hall,
John A. Schey, Procesos de Manufactura, McGraw Hill,

Complementary Mikell P. Groover, Fundamentos de manufactura moderna, Prentice Hall,
John A. Schey, Procesos de manufactura, McGraw Hill,


Recommendations


Subjects that it is recommended to have taken before
MATERIALS SCIENCE / 00708015