22044: Computer Aided Machine Drawing Practical Tool & Die 4th Sem Syllabus for Diploma TNDTE M Scheme

Computer Aided Machine Drawing Practical detail TNDTE Diploma syllabus for Mechanical Engineering (Tool & Die) (T&D), M scheme is extracted from TNDTE official website and presented for diploma students. The course code (22044), and for exam duration, Teaching Hr/week, Practical Hr/week, Total Marks, internal marks, theory marks, duration and credits do visit complete sem subjects post given below. The syllabus PDFs can be downloaded from official website.

For all other tool & die 4th sem syllabus for diploma m scheme tndte you can visit Tool & Die 4th Sem Syllabus for Diploma M Scheme TNDTE Subjects. The detail syllabus for computer aided machine drawing practical is as follows.

Rationale:

The contemporary progressing world is fast with the latest production systems. The advanced manufacturing of products is developed instantly using CAD Software. Even a small scale industry is now using a CAD software as it has become the heart of the Design department. So CAD has now become inevitable in industries.

Accuracy and Precision are the two important things that decide the quality of a product to survive its competitors in the market. Using CAD software design, the uniform accuracy, multiples of copies and storing in a small space for long time are assured.

The CAD software considerably improves the creativity and flexibility of a designer. The syllabus here enables a candidate to draw an industrial drawing within the optimum reach of a diploma cadre.

Objectives:

• Appreciate the need of sectional view and types of sections.
• Draw sectional views using different types of sections.
• Explain the use of threaded fasteners and the types of threads.
• Compare hole basis system with shaft basis system.
• Select different types of fits and tolerance for various types of mating parts.
• Practice on CAD commands in making 2D Drawings.
• Draw assembled drawings of different types of joints and couplings using CAD.
• Draw assembled drawings of various types of machine elements using CAD.

Detailed Content:

Unit I

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Unit II

Drawing Aids And Editing Commands

Creating objects (2D) – Using draw commands – Line, Arc, Circle, Ellipse, Donut, Polygon, Point, Pline, Sketch, Trace – Creating 2D Solid. Creating text – Dtext, Mtext, Text styles – Mline, spline – Drawing with precision -Osnap options – drafting settings -limits – Units – drawing aids – Fill, Snap, Grid, Ortho lines – Function keys – Editing and modify commands -Object selection methods – Erasing object – Oops – Cancelling and undoing a command – Copy – Move – Array – Offset – Scale – Rotate -Mirror – Break – Trim – Extend – Explode. Divide – Measure – stretch -Lengthen – Changing properties – Color – line types -LT scale -Matching properties – Editing with grips – Pedit – Ddedit – Mledit.

Unit III

Basic Dimensioning, Hatching, Blocks And Views

Basic dimensioning – Editing dimensions – Dimension styles -Dimension system variables. Machine drawing with CAD. Creation of blocks – Wblock – inserting a block – Block attributes – Hatching -Pattern types – Boundary hatch – working with layers – Controlling the drawing display – Blipmode – View group commands – Zoom, redraw, regen, regenauto, pan, viewres – Real time zoom. Inquiry groups – calculating area – Distance – Time – Status of drawing – Using calculator.

Unit IV

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Unit V

CAD Drawing Practice

Detailed drawings of following machine parts are given to students to assemble and draw the sectional or plain elevations / plans / and side views with dimensioning and bill of materials using CAD Software

1. Sleeve & Cotter joint
2. Spigot & Cotter joint
3. Knuckle joint
4. Stuffing Box
5. Screw Jack
6. Foot step bearing
7. Universal Coupling
8. Plummer Block
9. Simple Eccentric
10. Machine Vice
11. Connecting Rod
12. Protected type flanged coupling
13. Practice on Isometric Drawing

3D Drawing

1. Geneva Wheel
2. Bearing Block
3. Bushed bearing(Assembly)
4. Gib and Cotter(Assembly)
5. Screw Jack(Assembly.

Note: Take the orthographic view and sectional view from the above assembled 3D Drawing

Reference Books:

1. Inside AutoCAD – D. Raker and H. Rice – BPB Publications, NewDelhi
2. Engineering Drawing and Graphics + AutoCAD – K.Venugopal, – New Age International Publications
3. CAD/CAM/CIM – P. Radhakrishnan, S. Subramaniyan and V.Raju – New Age International Publications.
4. AutoCAD 2002 with Applications – Sham Tickoo – Tata Mcgraw Hill.
5. Computer Graphics, Prentice – Donald Hearn, M. Pauline Baker – Hall of India Pvt. Limited, NewDelhi.

List Of Equipment

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Board of Examination

Part A (I to IV units)

One Mark question contain – 1 x 10 = 10 Marks

Part B – V Unit

1. Assembled view of a given drawing- 45 Marks (2 or 3 views)
2. 3D drawing using 3D commands – 15 Marks

Viva voce – 5 Mark

Total 75 Marks

Note to the examiner:

Part A

• Answer any 10 questions out of 15 questions.
• Fifteen questions should cover the complete syllabus (UNIT I to IV)

Part-B

• Answer should be evaluated from the print out for the Part-B questions.(1 & 2).
• Examiner should set the question paper to cover the complete syllabus of Unit-V. (Unit-V – 13 Drawings for Part-B 1st question).
• Examiner has to ask the student to answer any one question from the lot of 13 drawings.
• Examiner has to set the no. of questions minimum 13 even one batch of students contains less than 13 .
• 3D Drawing creations the examiner should set the question paper to cover the complete syllabus of Unit-V. (Unit-V – 5 3D Drawings for Part-B 2nd question).

For detail syllabus of all other subjects of BE Tool & Die, M scheme do visit Tool & Die 4th Sem syllabus for M scheme.

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