Introduction. 2

1. Purpose of the part and technical requirements for it 3

1.1 Material characteristics 3

1.2 Workpiece selection 3

2. Selection of technological process 4

2.1 Technological bases 7

2.2 Equipment selection 8

2.3 Selecting a measuring tool 8

2.4 Selecting cutting tools 9

2.5 Selection of accessories 9

2.6 Calculation of cutting conditions 9

2.7 Types of possible defects and ways to eliminate them 12

3. Organization of the workplace 13

References 14

Introduction.

The profession of a machine operator arose in the 17th and 18th centuries, since even then turning was understood very widely. It included, in addition to turning, also engraving, milling, and planing. The masters of turning at that time were essentially qualified engineers, well acquainted with the basics of mechanics, mathematics and other sciences. The profession of a broad-spectrum machine operator has arisen quite recently, and its emergence is natural, since such a worker, who has a wide range of labor functions, is needed literally everywhere: at a machine-building enterprise and in a metro depot, at a shipyard and in a workshop for repairing agricultural machinery, in a construction organization and in a factory producing consumer goods.

The main labor functions of a machine operator are a complex of labor functions of each individual profession: turner, milling machine operator, driller, grinder. The work that a machine operator performs is very diverse: cutting external and internal threads, processing shafts, bushings, liners, cutting tools, various machine parts, etc.

The workplace of a general-purpose machine operator is a machine or a group of machines, permanent accessories, auxiliary tools and installation and fastening devices. A machine operator must be able to use a wide variety of cutting tools: cutters, drills, countersinks, reamers, cutters, dies, etc. The work of a machine operator is associated with the ability to read drawings, mentally imagine the progress of the technological process, determine the processing sequence, and select a cutting tool. For the profession of a machine operator, such psychological personality qualities as long-term memory, imaginative thinking, eye, manual dexterity, a certain physical strength, and coordination of movements are important.

1. Purpose of the part and technical requirements for it

Shaft- a part of a machine or mechanism designed to transmit torque or torque along its center line. Most shafts are rotating (moving) parts of mechanisms; parts directly involved in the transmission of torque (gears, pulleys, chain sprockets, etc.) are usually attached to them. Technical requirements for shafts. Dimensional accuracy, shape accuracy, accuracy of the relative position of surfaces, quality of the surface layer and hardness of the material, as well as ensuring the alignment of the working surfaces and the perpendicularity of the working ends to the base surfaces. The following requirements are imposed on the materials: high strength, good machinability, low sensitivity to stress concentration, and increased wear resistance.

1.1 Material characteristics

This shaft is made of steel 45 (GOST 1050-88)

Steel 45 is a structural medium-carbon quality steel. Contains: 0.45% C (carbon), 0.5% Mn (manganese), 0.3% Si (silicon), 0.04% S (sulfur) and 0.035% P (phosphorus).

1.2 Selection of workpiece

Part drawing

Based on the overall dimensions of the part (20x114mm) and the processing allowance, the size of the workpiece will have the following dimensions: D=25mm, L=125mm,

2. Selection of technological process

Technological process(abbreviated as TP) is a part of the production process that contains actions to change and subsequently determine the state of the item of production, i.e., to change the size, shape, properties of materials, control and movement of the workpiece

Technological operation refers to a completed part of a technological process performed at one workplace.

Operation, in turn, is divided into elements, the number of which varies depending on the volume and methods of its implementation. The main elements of the operation are installation, technological transition, auxiliary transition, working stroke, auxiliary stroke, position.

Installation refers to the part of the technological operation performed with constant fastening of the workpieces being processed or the assembled assembly unit.

Technological transition refers to the completed part of a technological operation, characterized by the constancy of the tool used and the surfaces formed by processing and connected during assembly.

When the cutting mode or cutting tool changes, the next transition begins.

A change in only one of the listed elements (machined surface, tool or cutting mode) defines a new transition. The transition consists of working and auxiliary moves.

Under working stroke understand the completed part of a technological transition, consisting of a single movement of the tool relative to the workpiece, accompanied by a change in the shape, size, surface roughness or properties of the workpiece.

Auxiliary move- a completed part of a technological transition, consisting of a single movement of the tool relative to the workpiece, not accompanied by a change in the shape, size, surface roughness or properties of the workpiece, but necessary to complete the working stroke.

Position is called each fixed position occupied by a permanently fixed workpiece or assembled assembly unit together with a device relative to a tool or stationary piece of equipment to perform a certain part of the operation.

Option 1

(1 question – 1 point)
A1. What is the depth of cut?
1) The thickness of the metal layer cut off in one working stroke of the cutter;
2) An allowance removed by a cutter in one or more passes;
3) A layer of metal removed by a cutter from the workpiece.

A2. The drill serves:
1) for finishing the hole;
2) to obtain a hole in a solid material;
3) for processing holes after casting and forging.

A3. What does the feed rate for thread cutting correspond to:
1) pitch of the thread being cut;
2) diameter for threading;
3) thread length;

A4. Specify the spindle speed formula:
1) 13 EMBED Microsoft Equation 3.0 1415 13 EMBED Microsoft Equation 3.0 1415; 2) 13 EMBED Microsoft Equation 3.0 1415; 3) 13 EMBED Microsoft Equation 3.0 1415.
A5. Indicate how a long workpiece is secured on a lathe:
1) in a three-jaw chuck;
2) in a three-jaw chuck with preload at the rear center;
3) using a mandrel.

A6. The lathe support consists of:
1) Gearbox, spindle, chuck;
2) Apron, slide, tool holder;
3) Housings, quills, plates.

A7. How can you tell the difference between roughing and finishing taps in a set of two taps?
1) by type of tail;
2) by the inclination of the chip flute;
3) by type of cutting part.

A8. Determine how you can eliminate the runout of the drilled hole:
1) countersinking;
2) deployment;
3) boring.

A9. What causes the die to screw in when cutting a thread?
1) due to the movement of the caliper tailstock;
2) due to self-tightening of the die;
3) by moving the tailstock quill.

A10. What is meant by the main dimensions of a machine: 1) the diameter of the workpiece; 2) overall dimensions of the machine; 3) height of centers and distance between centers; A11. In what cases is countersinking used:
processing up to roughness class 3;
2) to produce holes with an accuracy of up to 0.05 mm and a surface finish of up to roughness class 5;
3) to produce holes with an accuracy of up to 0.01 mm and a finish of up to class 8 roughness;

A12. What precision and surface roughness can be obtained by drilling? 1) accuracy class 5, roughness 3; 2) 3 accuracy class, 5 roughness; 3) 4 accuracy class, 2 roughness.

A13. Machine reamers are divided into:
1) wedge, key, vortex;
2) tail-mounted, mounted, with inserted knives, adjustable;
3) belt, screw, gun.

A14. Among the listed, indicate the thread indicated in the drawing “M10Х1.5”:
1) multi-start thread with a diameter of 10 mm and a thread stroke of 1.5;
2) metric thread with a diameter of 10 mm and a fine pitch of 1.5 mm;
3) metric thread with a diameter of 10 mm and a coarse pitch of 1.5 mm;

A15. Select a fine pitch thread symbol if the bolt is threaded:
1) M16-6g
2) M20x1.5-7N
3) M18x1.5-8g

IN 1. Write the name and purpose of the cutter elements:

AT 2. Write the name of the components and elements of the machine and their purpose

Part C. Solve the problem (1 question – 3 points)

C1. Determine the depth of cut when processing a part if the diameter of the workpiece is 54 mm and the diameter of the product is 46 mm. Processing is carried out in 2 working strokes.
C2. Determine the cutting speed and feed if the diameter of the workpiece is 80 mm, the spindle speed is 500 rpm, and in 2 minutes the cutter travels a distance of 200 mm. Processing is carried out in two working strokes.

PM04 “Performing work in the profession of a turner”
MDK 04.01 Performing turning works and setting up equipment
Sample answers
Test "Types of turning works"
Option 1
Part A

1
1
9
2

2
2
10
3

3
1
11
2

4
3
12
1

5
2
13
2

6
2
14
2

7
3
15
3

Part B
B1 1 main cutting edge
2-vertex
3- auxiliary cutting edge
4-holder
5- main back surface
6- auxiliary back surface
7-front surface
8-cutting head

B2 1- front headstock
2- guitar
3- feed box
4- bed
5- caliper
6 – sled
7- tailstock
8 - electrical cabinet
C1 13 EMBED Microsoft Equation 3.0 1415mm 13 EMBED Microsoft Equation 3.0 1415mm.
C2 13 EMBED Microsoft Equation 3.0 1415 mm/rev 13 EMBED Microsoft Equation 3.0 1415 mm/rev.
13 EMBED Microsoft Equation 3.0 1415m/min 13 EMBED Microsoft Equation 3.0 1415m/min.
Points
Grade

PM04 “Performing work in the profession of a turner”
MDK 04.01 Performing turning works and setting up equipment
Test No. 4 “Types of turning work”
Option 2
Part A. For each task in Part A, answers are given, of which one is correct
(1 question – 1 point)
A1. The feed box serves:
1) To regulate the speed of rotation of the workpiece;
2) To regulate the speed of movement of tools;
3) To regulate the speed of rotation of tools.

A2. The front headstock contains:
1) quill;
2) apron;
3) gearbox.

A3. Cutting modes include:
1) depth of cut, feed, speed;
2) allowance, feed, spindle speed;
3) cutting depth, cutting force, cutting power.

A4. What types of chips are formed during cutting:
1) chipping, breaking, draining;
2) smooth tape, stepped;
3) shaped, drain, broken.

A5. Provide the cutting speed formula:

1) 13 EMBED Equation.3 141513 EMBED Equation.3 1415; 2) 13 EMBED Equation.3 1415; 3) 13 EMBED Equation.3 1415.

A6. Specify the main cutting movement:
1) Moving the tool fixed in the tool holder;
2) Moving the tool fixed in the tailstock;
3) Rotational movement of the workpiece.

A7. How are drill bits with a tapered shank attached? 1) in a special mandrel using cams; 2) in the tailstock quill using a drill chuck; 3) in the tailstock quill;

A8. What parts does the tap consist of?
1) cutting part, shank, calibrating part;
2) cutting part, calibrating part, neck, shank;
3) guide cone, cutting part, calibrating part, reverse
cone, neck, shank.

A9. The main cutting edge is formed by the intersection of:
1) Front and auxiliary rear surface;
2) Main rear surface and auxiliary rear surface;
3) Front and main rear surfaces.

A10. What parameters characterize the thread?
1) outer diameter, inner diameter, average diameter, pitch, profile angle;
2) workpiece diameter, part diameter, thread length, number of thread starts;
3) outer diameter, inner diameter, helix angle, main thread angle.

A11. In what cases is drilling used:
1) to obtain holes with an accuracy of 0.1-0.2 mm and cleanliness
up to roughness class 3;
2) to produce holes with an accuracy of up to 0.05 mm and a cleanliness of up to roughness class 5;
3) to produce holes with an accuracy of up to 0.01 mm and a cleanliness of up to roughness class 8;

A12. What surface cleanliness is achieved during finishing
boring?
1) Ra 12.5-25 microns;
2) Ra 6.3-12.5 microns;
3) Ra 1.6-3.2 µm;

A13. Indicate the advantage of countersinking over boring:
1) higher productivity;
2) eliminates runout of the drilled hole;
3) allows you to obtain a higher surface cleanliness.

A14. Indicate among the listed threads indicated in the drawing “M10”:
1) multi-start thread with a diameter of 10 mm;
2) metric thread with a diameter of 10 mm;
3) modular thread with a diameter of 10 mm.

A15. Select a fine thread designation if the nut is threaded:
1) M12-6g
2) M16x1.5-7N
3) M14x0.5-8g
Part B. Answer the questions (1 question – 2 points)

IN 1. Write the name and purpose of the incisors:

AT 2. Write the names of the drill elements

Part C. Solve the problems (1 question – 3 points)

C1. Determine the feed rate if, when processing a workpiece with a spindle speed of 800 rpm, the cutter takes 2 minutes. travels a distance of 400 mm.
C2. Determine the depth of cut and spindle speed if the diameter of the workpiece is 25 mm, the diameter of the part is 20 mm, and the cutting speed is 80 m/min. Processing is carried out in one working stroke.

PM04 “Performing work in the profession of a turner”
MDK 04.01 Performing turning works and setting up equipment
Sample answers
Test No. 4 “Types of turning work”
Option 2
Part A
1
2
9
3

2
3
10
1

3
1
11
1

4
1
12
3

5
2
13
1

6
3
14
2

7
3
15
2

Part B
B1 1-boring groove
2- boring for through holes
3-pass thrust
4-way bent
5-groove
6-threaded
7-scoring

AT 2
1 – working part
2 – foot
3 – neck
4 – cutting part
5 – shank
6 – back surface
7 – apex angle
8 – front surface
9 – ribbon
10 – angle of inclination of the helical groove
11 – angle of inclination of the jumper
12 – jumper
13 – groove
14 – cutting edges

C1 13 EMBED Equation.3 1415 mm/rev 13 EMBED Equation.3 1415 mm/rev.
C2 13 EMBED Equation.3 1415 mm 13 QUOTE 1415 mm
13 EMBED Equation.3 1415 rpm 13 EMBED Equation.3 1415 rpm
Points
Grade

Root EntryEquation Native

Attached files

Extracurricular independent work of students is the planned educational, educational and research work of students, carried out in extracurricular time on the instructions and with the methodological guidance of the teacher, but without his direct participation. The goal of students’ independent work is to master fundamental knowledge, professional skills and skills in activities profile, experience in creative and research activities. Independent work of students contributes to the development of independence, responsibility and organization, a creative approach to solving educational and professional problems.

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"SARATOV POLYTECHNIUM"

MANAGEMENT

ON THE ORGANIZATION OF EXTRA-CLASSROOM

INDEPENDENT WORK OF STUDENTS

by profession: 01/15/25. machine operator (metalworking)

professional module PM.01. Software control of metal-cutting machines

Saratov, 2014

Development organization: GAPOU SO "Saratov Polytechnic"

Developers:

Krasilnikov Vladimir Viktorovich - teacher of the first qualification category_____________

Reviewers:

Sultanova M.K., Deputy Director for SD______________

Mikhailova I.E. Methodist_________________

The program was reviewed at a meeting of the MK of mechanical engineering professions. Protocol No. 1 dated August 26, 2014

Chairman of the MK of mechanical engineering professions

Krasilnikov V.V.________________

1. Types and forms of extracurricular independent work of students.

• Systematic study of lesson notes, educational and special literature.
• Independent study of material and note-taking of lectures on educational and specialized literature.
• Writing and defending a report; preparation for a message or conversation in class on a topic given by the teacher (taking into account the use of Internet resources).
• Completing abstracts, reports, messages, presentations, projects, test assignments.
• Preparation for tests, differentiated tests.

2. Distribution of hours for students’ extracurricular independent work

Table 1

1. Planning extracurricular independent work

The forms of independent extracurricular work and the proposed assignments must be differentiated, taking into account the specifics of the discipline being studied, the individual characteristics of students, and their profession.

table 2

Approximate time standards allocated for extracurricular independent work

MINISTRY OF EDUCATION OF THE SARATOV REGION

STATE AUTONOMOUS PROFESSIONAL EDUCATIONAL INSTITUTION OF THE SARATOV REGION

"SARATOV POLYTECHNIUM"

SCHEDULE FOR IMPLEMENTATION OF EXTRA-AUDITORY INDEPENDENT WORK

MDK. 01.01. Technology of metalworking on metal-cutting machines with program control.

Table 3

1. General rules (approaches) when organizing and conducting independent work of students

Extracurricular independent work of students in this manual is considered as a means of organizing and performing certain activities in accordance with the goal.

The main goals of students’ extracurricular work:

• mastery of knowledge, skills and professional and general competencies based on them;
• formation of readiness for self-education, independence and responsibility;
• development of a creative approach to solving educational and professional problems.

General guidelines for the VSR manual for teachers:

• Clearly set the task of the upcoming independent work.
• Ensure that students carry out independent work consciously, i.e. clearly understood the theoretical basis of the actions being performed.
• Warn students in a timely manner about common mistakes and possible ways to avoid them.
• Provide assistance to students without interfering with their work unnecessarily.
• When students make mistakes, bring them to awareness and understanding of the essence and causes of errors, so that they independently find a way to prevent and eliminate them.
• Practice intermediate monitoring of the progress and results of students’ independent work.
• It is rational to distribute independent work tasks according to complexity, taking into account the individual characteristics and abilities of students.
• Stimulate and encourage students to demonstrate a creative approach to completing assignments.
• Skillfully combine individual and collective work of students.
• When assessing the progress and results of independent work, students should proceed from the positive aspects in their work.
• During independent work, students constantly practice turning to different sources of information.

Organization and management of extracurricular independent work of students

Extracurricular independent work is a separate genre of the educational process and is based on a specific technological

cycle, which involves the following sequence of stages:

1. Planning.

2. Selection of material to be submitted for independent work.

3. Methodological and logistical support

independent work.

4. Constant monitoring and evaluation of independent work.

Table 4

extracurricular independent work

6. Types of extracurricular independent work of students and methodological recommendations for their implementation

The teacher independently selects the types of independent work in accordance with the specifics of the discipline or professional module, and develops his own evaluation criteria.

The types of HRV include the following types of extracurricular work of students:

1. Systematic study of lesson notes, educational and special technical literature.
2. Independent study of material and note-taking of lectures on educational and special technical literature.
3. Writing and defending an abstract or report; preparation for a message or conversation in class on a topic given by the teacher (taking into account the use of Internet resources).
4. Preparation of test tasks on a given topic.
5. Recording statements or citations
6. Drawing up abstracts of a literary source
7. Writing an abstract, review for an article, manuscript, book
8. Execution of calculation tasks.
9. Working with reference literature.
10. Carrying out a project or research.
11. Preparation of reports on laboratory and practical work, and preparation for their defense.
12. Preparation for tests and exams.

1. Writing an abstract, report, message.

Essay - a brief summary in writing or in the form of a public report of the content of scientific work (works), literature on the topic. This is an independent research work of the student, where you reveal the essence of the problem under study, bring different points of view, your own views on it. The content of the abstract should be logical, the presentation of the material should be of a problem-thematic nature.

The difference between a report and an abstractin that it reflects one point of view on the problem and does not imply its study in comparison and analysis.

• Formulate the topic of the work, and it should not only be relevant in its meaning, but original and interesting in content. The topic is usually determined by the teacher, but you can also take the initiative in determining a specific topic.
• Select and study the main sources on the topic (as a rule, at least 8-10 different sources are used when developing an essay or report). You can get the necessary literature from the lyceum library or any other library, and it is also advisable to use Internet resources.
• Compile a bibliography.
• Process and systematize the selected information on the topic.
• Develop a plan for your essay or report based on the available information.
• Write an essay or report on the computer.
• Prepare a public speech based on the materials of an essay or report.

Plan - this is the “skeleton” of the text, compactly reflecting the sequence of presentation of the material.

• When making a plan when reading a text, first of all try to determine the boundaries of thoughts. Mark these places in the book immediately. Give the necessary passages headings, formulating the corresponding point of the plan. Then review what you read again to make sure that the “rotation” of the content is set correctly, and clarify the wording.
• Strive to ensure that the title-points of the plan most fully reveal the author’s thoughts. Consistently reading the text, draw up a rough outline of a plan with the necessary detail.
• Make notes in such a way that it can be easily covered at one glance.

Criteria for evaluating an abstract, report, message

• Relevance of the research topic
• Matching the content to the topic
• Depth of material development
• Correctness and completeness of use of sources
• Compliance of the design of the abstract or report with the requirements

2. Preparation of test tasks on a given topic

Before starting to compile a test, it is necessary to limit the area of ​​knowledge (topic, section, discipline) based on the materials of which it will be compiled, highlight the most significant questions of the educational material, and break each question into concepts to be mastered.

Basic requirements for tests.

The most important test criteria are: effectiveness, certainty, simplicity, unambiguity.

Effectiveness test is a clear and clear formulation of the question within the limits of acquired knowledge.

Certainty The test means that by reading it you understand well what activities you must perform, what knowledge you must demonstrate and to what extent.

Simplicity test means that it contains a clear and direct formulation of the task for the activity. Use wording such as “specify”, “list”, “formulate”, etc. in tasks.

Unambiguity The test assumes that there is only one correct answer.

But you should know that there are different levels (types) of tests. Before creating your test, determine its type, because... The test construction technique depends on this.

The following levels can be distinguished in the test construction technique:

I level - tests that require recognition activities, when only the indication of phenomena comes to the fore. At this level, prompts are used in the form of answers and the test taker only needs to answer “yes” or “no”.

For example: A keyboard is a peripheral device. Not really.

Level II - tests that allow you to reproduce correct answers from memory, without the help of hints. The simplest tests of this type are substitution tests, in which a word, phrase, terms, concepts, etc. are deliberately omitted.
For example: The left panel of a computer keyboard includes...

Level III - special tasks are being developed that require multi-stage activities, when there are no ready-made algorithms and the solution leads to the acquisition of new information.

Test tasks in one test can be either one level (type) or a combination of different levels (types).

When registering tests, indicate the name of the topic and discipline for which they are compiled.

For example: Tests on the topic “System unit and its components” in the academic discipline “Fundamentals of Information Technology”.

• As a rule, test tasks are located on the left side of the sheet, one under the other. Opposite each task, on the right side of the sheet, answer options are given. Another arrangement of tasks and answers is possible: tasks are arranged in a line, and answer options are placed under the line in a column.
• A mandatory element of the test is the correct answer sheet, which is attached to the test. The sheet of correct answers indicates the number of the task and the digital, alphabetic, verbal designation of the correct answer. For example: 1. – a; 2. – in; 3. – b, etc.
• Particular attention should be paid to the correct spelling of test tasks and the correct use of professional vocabulary. In many ways, the opinion about you as a student is based on the impression of the appearance of the work presented. Therefore, the test must be performed carefully, without corrections, and have an aesthetic appearance.

3. Drawing up abstracts of a literary source

Abstracts allow you to summarize the studied material, express its essence in brief formulations, helping to reveal the content of the book, article and report. Unlike quotations, theses are a summary of the main ideas of a report or abstract, taken directly from the text.

• When writing your abstract, do not provide facts and examples. Maintain an original form of statement in your abstracts so as not to lose documentary and persuasiveness.
• Read the text you are studying repeatedly, breaking it into passages, highlight the main thing in each of them, and formulate theses based on the main thing.
• It is useful to link individual theses to the original text (make links to the pages of the book).
• Upon completion of work on the thesis, check them with the text of the source.

4. Taking notes on the material on the topic

Abstract - this is a consistent recording of information selected and considered during the reading process.

• Familiarize yourself with the text, read the preface, introduction, table of contents, chapters and paragraphs, highlight informationally significant places in the text.
• Make a bibliographic description of the material you are taking notes on.
• Select theses and write them down followed by argumentation, supported by examples and specific facts.
• Make a plan for the text - it will help you in the logic of presentation and group the material.
• Outline each issue in the plan. Use an abstract method of presentation (for example: “The author believes...”, “reveals...”, etc.).
• Please format the author's text as a quotation.
• In conclusion, summarize the text of the summary, highlight the main content of the material studied, and evaluate it.
  Prepare your notes: highlight the most important places in different colors so that they are easy to see. Avoid variegation.

Abstract - diagram - This is a schematic record of the material read.

• Select facts to draw up a diagram and highlight the main, general concepts among them.
• Identify key words and phrases that help reveal the essence of the main concept.
• Group the facts in a logical sequence and give the highlighted points a title.
• Fill the diagram with data.

An example of a synopsis and diagram:

5. Carrying out a project or research

Working on a project or research raises students’ level of self-esteem as already formed specialists; group completion of tasks develops communicative competence; everyone is given the opportunity to contribute to the developed project (research).

Educational projects (research) - independently developed design solutions or conducted research aimed at solving significant practice-oriented problems, possessing subjective or objective novelty and carried out under the supervision and consultation of a teacher.

Main stages of work on the project:

1 Development of a project or research assignment

At this stage, the topic of the project is selected, goals are set, and fundamental and problematic issues are identified.

2. Project development

The stage of project implementation in accordance with the collective and individual tasks assigned to group members. Part of the group collects all the necessary information, the other part carries out the practical part of the work (calculations, then the whole group analyzes, draws certain conclusions and prepares a presentation of the project).

3. Presentation of results

At this stage, students, in the process of group discussion, choose an acceptable and adequate form of presenting the results of the work performed, which should well reflect the implementation of the assigned tasks.

4. Presentation

At the presentation stage, all groups demonstrate the results of their work. The main criteria for project success are the following:

In-depth study of the content of the problematic issue;

Accuracy and correctness of the calculations made;

The activity of each participant in the implementation of the project;

Convincing justification for the conclusions drawn;

Ability to answer audience questions and defend your project.

5. Self-esteem

The final stage of work on the project takes place in the form of an open exchange of opinions. The assessment is based on the criteria for the success of the project.

Research work should not be built arbitrarily, but according to a certain structure, which is generally accepted for scientific works. The main elements of this structure, in order of their arrangement, are:title page, table of contents, introduction, main part, conclusion, bibliography, appendix

7.Motivation of students for extracurricular independent work

Effective extracurricular independent work of students is possible only if there is serious and sustainable motivation.

Factors contributing to the activation of independent work

students:

1. Awareness of the usefulness of the work performed.

If the student knows that the results of his work will be used, for example, in preparing a publication or in another way, then the attitude towards completing the task changes significantly, and the quality of the work performed increases. Another option for using the utility factor is the active use of work results in professional training.

2. Creative orientation of students’ activities.

Participation in research and project work at the lyceum for a number of students is a significant incentive for active extracurricular work.

3. Participation in scientific and practical conferences, competitions and competitions of professional skills in academic disciplines.

4. Use of motivating factors for knowledge control (cumulative grades, ratings).

5. Differentiation of tasks for extracurricular independent work, taking into account the interests and level of preparation of students in the discipline.

To develop a positive attitude among students towards extracurricular activities

independent work, at each stage it is necessary to explain the goals and objectives of its implementation, monitor their understanding by students, familiarize students with algorithms, requirements for performing certain types of tasks, carry out individual work aimed at developing students’ skills in self-organization of cognitive activity.

ANNEX 1.

MINISTRY OF EDUCATION OF THE SARATOV REGION

STATE AUTONOMOUS PROFESSIONAL EDUCATIONAL INSTITUTION OF THE SARATOV REGION

"SARATOV POLYTECHNIUM"

External storage devices

report (information message)

according to MDC. 01.01. Technology of metalworking on metal-cutting machines with program control.

(The title of the work without the word “topic” and without quotation marks. Below, under the title, the type of work and the academic subject are indicated (/report on UD/MDK…/).

Saratov, 2014

APPENDIX No. 2

TEST TASKS

Home > Competition

Questions to preparefor a professional skills competition (milling operator).

1. The concept of interchangeability.

   Measuring.

   Caliber control

   Properties of metals

   Chemical-thermal treatment of steel. Purpose, types

   Cutter geometry

   Cutting modes during milling

   Up-climb milling.

   Milling of flat surfaces (cutting tools, defects)

   Milling of grooves and grooves.

   Cutting on a milling machine.

   Dividing heads. Polyhedron milling

   Safety precautions when working on a milling machine.

Appendix No. 7

Limit dimensions, maximum deviations

1. Landings. Fit in the hole and shaft system, quality

   Deviations in the shape of cylindrical surfaces

   Surface location deviations

   Designation on drawings of tolerances of shape and relative position of surfaces.

   Surface roughness. Designation of surface roughness in drawings

   The concept of interchangeability.

   Measuring.

   Caliber control

   Means for controlling angles, conical connections.

   Thread inspection tools, methods

   Properties of metals

   Alloys of iron and carbon. Steel, cast iron. Classification, labeling.

   Heat treatment of steel, defects, types.

   Chemical-heat treatment of steel. Purpose, types

   Non-ferrous metals and alloys (lats uni, bronze), marking.

   Tool materials (tool steels, hard alloys and cutting ceramics, - marking)

   Phenomena accompanying the process of cutting metals (types of chips, work hardening, build-up)

   Turning tool geometry

   Cutting modes when turning

   Machining of cylindrical holes (drilling, boring, countersinking, reaming). Types of marriage. Causes.

Thread cutting (external, internal). Elements, designations.

Processing of conical surfaces (methods).

Safety precautions when working on lathes and sharpening machines

Appendix No. 8

SCROLL

topics on theoretical issues for the city competition

professional excellence among electric welders

city ​​of Almetyevsk in 2011.

Classification of the main welding methods.

Requirements for welding arc power sources.

Welding converters.

Welding transformers.

Welding rectifiers.

Maintenance of welding equipment.

Metallurgical processes during welding.

Metallurgy of manual electric arc welding.

Electrodes for arc welding.

Classification of electrodes.

Assembling the welded joint.

Technique for making seams.

Deformations and stresses during welding.

Defects in welds. Their classification.

Control methods.

Safety requirements.

Electrical safety.

Fire safety.

Bibliography.

Fominykh V.P., Yakovlev A.L. “Electric welding”: A textbook for vocational schools. - M.: “Higher School”, 1973.

Levadny B.S., Burlaka A.P. “Welding work”: - M., LLC “Adelant”; 2002.

Kolganov L.A. “Welding work. Welding, cutting, soldering, surfacing”, Textbook. - M.: Publishing and trading corporation "Dashkov and Co", 2003.

Appendix No. 9

CONDITIONS

holding a citycompetitionprof. skill"Best in the profession"among electric welders

reel build quality: 10 points

welding speed over time:

answer to 20 questions: 10 points

each wrong answer: minus 0.5 points

For violation of safety rules during welding, penalty points are recorded: minus 0.5 for each violation.

Based on the results of the competition, the commission determines 1st, 2nd, 3rd places.

Appropriate prizes will be awarded.

The participant must haveto myself:

qualification certificate, safety certificate;

standard set;

2 tacked pipe coils;

The validity period of the TB certificate has expired.

Presence of flammable substances in the cabin.

Lack of standard kit.

Damage to cable insulation.

The rheostat must be factory-made or issued with a rationalization proposal.

JOINT ASSEMBLY QUALITY

Requirements

for welding joint assembly

Page 1 of 5

1.What are the requirements for cylindrical surfaces?

2. What is a feed motion?

3. What is the front angle called?

4. What tool is used to finish the hole?

5. The class of shafts includes parts that have:

6. What to consider when using dials:

7. Which thread is characterized by a triangular profile pitch, profile angle 60˚

8. What is allowance?

9. What is called cutter geometry?

10.What steels are called alloyed?