15TD31T: Elements of Press Tool Tool and Die 3rd Sem Syllabus for Diploma DTE Karnataka C15 Scheme

Elements of Press Tool detail DTE Kar Diploma syllabus for Tool And Die Making (TD), C15 scheme is extracted from DTE Karnataka official website and presented for diploma students. The course code (15TD31T), 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 and die 3rd sem syllabus for diploma c15 scheme dte karnataka you can visit Tool and Die 3rd Sem Syllabus for Diploma C15 Scheme DTE Karnataka Subjects. The detail syllabus for elements of press tool is as follows.

Pre-requisites:

Basic knowledge of mathematics, geometry, applied science engineering graphics and should be able to recognise and understand simple assembly drawings and parts and general knowledge of sheet metal components like utensils, automobile parts, coins, electronic units

Course Objectives:

1. To study the importance of Press tools.
2. To understand about various types of press tools and press tool operations.
3. To study about various stock materials involved in press operations and their properties.
4. To study about working principles of various types of press tools and about design and construction of various types of press tools, their elements, materials and specifications for elements.
5. The students will be assessed for a good understanding of the fundamental principles of press tools and application of these principles to problem situations in industry. They will also be assessed with simple calculations only.

Course Outcomes:

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UNIT I: PRESS TOOLS AND STOCK MATERIALS 05 Hrs

Introduction of categories of press tools and various press tool operations, factors considered while design and manufacturing of press tools and types of stock materials (metallic and non-metallic) used in press operations, material specifications and their properties, relationship between stock strips and the piece-part, relationship between piece-part and slug, selection of stock materials and preparation of stock materials.

UNIT II: THEORY OF SHEARING AND TYPES OF PRESS TOOLS 18 Hrs

Shearing, types of shearing (Partial cutting, enclosed cutting) theory of metal shearing, influencing factors of shearing action (shear strength, sheet thickness, type of material and condition of cutting edges). Critical stages of shearing, shear force and its calculations and methods of reduction of shear force. Study about cutting clearance, characteristic appearance of sheared surface (burr, fractured area, cut-band, die roll). Calculations on determining the cutting clearance. Types of die openings and their construction. Introduction to press tools like guide plate tool, progressive tool and compound tool and their elements and functions. Advantages and disadvantages of compound tool.

UNIT III: FASTENERS AND DIE-SETS 05 Hrs

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UNIT IV: STRIP LAYOUT, PUNCHES AND DIE BLOCKS 10 Hrs

Introduction of strip layout, Conservation of stock-strip. Considerations while planning strip layout. Types of strip layout (narrow run, wide run and angular run). Types of strip layouts based on number of rows and passes (single row single pass, single row double pass and double row single pass). Introduction of punches, types of punches and their construction. Punch fixing methods and retention of punches. Prevention of slug pulling and prevention of rotation of punches, Buckling force and calculation.Introduction to die blocks. types of die blocks and construction. Machining methods of die blocks. punch & die life, surface finish of punch and die walls, wear on punch and die, reasons for excessive wear of punch and die. sharpening and sharpening allowances.

UNIT V: STRIP FEEDING 07Hrs

Introduction to strip feeding -strippers (box stripper, travelling stripper, pressure pad and open end stripper), Strip guides (front gauge and back gauge), Extension table, stoppers, side cutters, strip pushers.

UNIT VI: PILOTS, NESTING AND EJECTING ELEMENTS 07Hrs

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Text Books:

1. Die design fundamentals – Paquin.
2. Tool design – Donaldson.
3. Basic die making – Ostergarrd.
4. Advance die making – Ostergarrd.
5. A learners guide to Press tools – N.B. Suresh
6. Tool deign hand book for Press tool, Jigs and fixtures – N.B. Suresh

Reference Books:

1. Fine blanking – T.P.Prakash.
2. Die casting dies – Y.B.Series.
3. Tool and Die maker – Mahajan.

LIST OF SOFTWARE/LEARNING WEBSITES

1. https://en.wikipedia.org/wiki/Types_of_press_tools
2. https://www.scribd.com/document/121770875/die-making
3. https://docs.google.com/file/d/0B04Ddy44Cne1UGpYZEJ0RW5VVXc/edit
4. dtdm.yolasite.com/resources/09%20STRIP%20LAYOUT.ppt
5. https://www.scribd.com/doc/110268031/Press-Tool-Master-File
6. https://en.wikipedia.org/wiki/Fastener
7. http://www.uni.edu/~rao/Mfg%20Tooling%20-09%20Progressive%20dies.pdf
8. http://www.misumi-techcentral.com/tt/en/press/2009/12/022-basics-of-blanking-work-12-outer-cutting-work-6-pilot.html

SPECIAL INSTRUCTIONAL STRATEGIES

1. PRESS TOOLS AND STOCK MATERIALS Industrial visits. Presentation of models whi ch are available in the premises.
2. THEORY OF SHEARING AND TYPES OF PRESS TOOLS Dismantling of various types of press tool models, lecture, demonstration of parts and functions, re-assembling of the same which are available in the premises.
3. FASTENERS AND DIE-SETS Presentation of models which are available in the premises, Video Presentations, Industrial visits.
4. STRIP LAYOUT, PUNCHES AND DIE BLOCKS Presentation of models which are available in the premises, Lecturer, Demonstration.
5. STRIP FEEDING Presentation of models which are available in the premises, Lecturer, Demonstration.
6. PILOTS, NESTING & EJECTING ELEMENTS Discussions Expose to various actuation systems. Teaching, Video Presentations, Industrial visits.

SUGGESTED LIST OF STUDENT ACTIVITYS

Note: the following activities or similar activities for assessing CIE (IA) for 5 marks (Any one)

• Each student should do any one of the following type activity or similar activity related to the course and before take up, get it approved from concerned Teacher and HOD.
• Each student should conduct different activity and no repeating should occur
1. Collect the different types of sheet metal components and list the press tool operations involved.
2. Study and sketch the tool concepts for various types of model tools present in the premises.
3. The students should identify at least five applications .He should select the materials for identified applications by using design data hand book. List the mechanical properties of material selected
4. The student should Download and present various presentations related to press tools and press operations

Note to IA verifier:

The following documents to be verified by CIE verifier at the end of semester

1. Blue books( 20 marks)
2. Student suggested activities report for 5 marks and should be assessed
3. Student feedback on course regarding Effectiveness of Delivery of instructions & Assessment Methods.

Model Question Paper:

(CIE)

1. List the categories of press tools with examples. 5 MARKS
2. State the factors considered while designing and manufacturing of press tools. 5 MARKS
3. Sketch and explain progressive tool Or Explain about critical stages of shearing with sketches 10 MARKS

Model Question Paper:

(SEE)

PART-A (Each questions carries 5 marks)

1. State the factors considered while design and manufacturing of press tools.
2. List the categories of press tools with examples.
3. Calculate the required shear force for below given component drawing and details.

Follow the figure from pdf.

4. Calculate the cutting clearance for the above given component drawing and details and mention the punch and die dimensions with profile sketches.
5. Write the advantages of die sets.
6. Write the types of strip layouts based on type of run with sketch.
7. Define strip guides explain types of strip guides.
8. List the types of piloting methods and define them.
9. List the reasons to incorporate ejectors or shedders in press tools.

PART-B (Each questions carries 10 marks)

1. Sketch and explain about Progressive tool.
2. Sketch and explain Critical stages of shearing.
3. List the types of strip layouts with sketches with respect to,
1. Type of Run
2. Number of rows and passes
4. Explain about Segregated punches with sketches.
5. Explain about side cutter and list the advantages of side cutter.
6. Explain about pilots, define piloting methods and list the conditions for indirect piloting.
7. Plan the strip layout for the given component drawing and details and find the economy of drawn strip layout.

Follow the figure from pdf.

8. Sketch and explain indirect knock out system.
9. Sketch and explain travelling strippers.
10. Define nest gauge and explain three conditions to be met when the nest gauges are preferred.

For detail syllabus of all other subjects of BE Tool And Die, C15 scheme do visit Tool And Die 3rd Sem syllabus for C15 scheme.

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