SRI RAMAKRISHNA INSTITUTE OF TECHNOLOGY, COIMBATORE-10
|SRI RAMAKRISHNA INSTITUTE OF TECHNOLOGY, COIMBATORE-10 |
|(Approved by AICTE, New Delhi – Affiliated to Anna University, Chennai) |
|Department of Mechanical Engineering |
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|Course Title: Design of Jigs, Fixtures, Press Tools and Moulds | Number of Credits: 4 |
|Department : Mechanical Engineering | Programme: B.E |
|Semester : Seven | Academic Year: 2013-2014 |
|Course Instructor : Dr B.Chokkalingam | | | |
|Associate Professor | | | |
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|Prerequisite Courses : 1. Engineering Materials and Metallurgy |
|2.Manufacturing Technology I |
|3.Manufacturing Technology II |
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|References : |
|Text Books |
|T1. Joshi, P.H. “Jigs and Fixtures”, Second Edition, Tata McGraw Hill Publishing Co., Ltd., New |
|Delhi, 2004 |
|T2. Donaldson, Lecain and Goold “Tool Design”, III rd Edition Tata McGraw Hill, 2000 |
|Reference Books |
|R1. K. Venkataraman, “Design of Jigs Fixtures & Press Tools”, Tata McGraw Hill, New Delhi, 2005. |
|R2. Kempster, “Jigs and Fixture Design”, Hoddes and Stoughton – Third Edition 1974. |
|R3. R.G.W.Pye, Injection Mould Design, SPE Publication, 2000 |
|R4. Hoffman “Jigs and Fixture Design” – Thomson Delmar Learning, Singapore, 2004 |
|R5. ASTME Fundamentals of Tool Design Prentice Hall of India |
|e-Learning Resources: |
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|Instructor Mail : bchokkalingam@ |
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|Objectives: |
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|1. To implement the tool design process when designing tooling for the manufacturing of a product. |
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|2. Design and develop work holders, jigs and fixtures to manufacture products. |
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|3. To design the various elements of dies for press working operations. |
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|4. Design, develop and evaluate tooling for press working operations such as bending, forming and drawing. |
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|5.To study the mould and injection die design concepts. |
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|Course Plan: |
|S.No |
|Topic(s) |
|Unit Objectives |
|Hours Planned |
|T/R Book |
|Page(s) |
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|Unit I Locating and Clamping Principles |
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|1 |
|Objectives of tool design, Function and advantages of Jigs and fixtures |
|To list the objectives of tool design. |
|To identify the types of locators and supports used for jigs and fixtures |
|To select locating and supporting and clamping devices best suited for the components. |
|To select the correct clamping. |
|To identify various drill bushings |
|To select tolerances and materials for jigs and fixtures |
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|1 |
|T1 |
|R3 |
|2 |
|1 |
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|2 |
|Basic elements, |
|principles of location |
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|2 |
|T1 |
|9-13 |
|1,35 |
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|3 |
|Locating methods and devices, Redundant Location |
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|2 |
|T1 |
|R2 |
|13-35 |
|15 |
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|4 |
|Principles of clamping |
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|1 |
|T1 |
|39-42 |
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|5 |
|Mechanical actuation, pneumatic and hydraulic actuation |
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|1 |
|T1 |
|62-67 |
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|6 |
|Standard parts, Drill bushes and Jig buttons, Tolerances and materials used. |
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|1 |
|T1 |
|T1 |
|T1 |
|R4 |
|85-91 |
|223-231 |
|2-7 |
|67-71 |
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|Unit II Jigs and Fixtures |
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|7 |
|Design and development of jigs and fixtures for given component |
|To identify the types of jigs and fixtures |
|Design a suitable jig/fixture after analyzing the part data. |
|To choose a right type of jig and fixture for the selected operations on parts |
|To design a suitable assembly, inspection and welding fixtures for the parts. |
|To know the primary purpose and process of building a modular fixture |
|2 |
|R4 |
|139-146 |
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|8 |
|Types of Jigs, Post, Turnover, Channel, latch, box, pot, |
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|1 |
|T1 |
|T2 |
|R2 |
|91-109 |
|540-554 |
|38-47 |
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|9 |
|angular post jigs, Indexing jigs |
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|1 |
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|10 |
|General principles of |
|milling, Lathe, fixtures |
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|2 |
|T1 |
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|115-132 |
|135-157 |
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|11 |
|boring, broaching and grinding fixtures |
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|1 |
|T1 |
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|163-167 |
|158-162 |
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|12 |
|Assembly, Inspection and Welding Fixtures |
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|2 |
|T1 |
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|168-176 |
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|13 |
|Modular fixturing systems, Quick change fixtures |
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|1 |
|T1 |
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|190-194 |
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|Unit III Press Working Terminologies & Elements of Cutting Dies |
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|14 |
|Press Working Terminologies |
|To know the press working terminologies and operations. |
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|To design the strip layout and various elements of dies |
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|To design and prepare four standard views of simple blanking, piercing compound and progressive dies. |
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|1 |
|R5 |
|319-322 |
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|15 |
|Press Working Operations |
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|1 |
|T2 |
|632-636 |
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|16 |
|Types of presses, press accessories |
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|1 |
|T2 |
|636-643 |
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|17 |
|Computation of press capacity, Strip layout, Material Utilization |
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|1 |
|T2 |
|711-715 |
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|18 |
|Shearing action ,Clearances , Press Work Materials |
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|1 |
|T2 |
|T2 |
|650-657 |
|711 |
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|19 |
|Center of pressure, Design of various elements of dies |
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|1 |
|R5 |
|326-328 |
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|20 |
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|Die Block, Punch holder, Die set, guide plates |
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|1 |
|T2 |
|660-666 |
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|21 |
|Stops, Strippers, Pilots, Selection of Standard parts |
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|1 |
|T2 |
|690-711 |
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|22 |
|Design and preparation of four standard views of simple blanking, piercing |
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|T2 |
|676-711 |
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|23 |
|compound and progressive dies. |
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|1 |
|T2 |
|666-671 |
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|Unit IV Bending Forming and Drawing Dies |
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|24 |
|Difference between bending, forming and drawing |
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|To know the difference between bending, forming and drawing operations. |
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|To design the blank development for bending, forming and drawing operations |
|To understand the functions of direct and indirect pressure pads and ejectors. |
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|To design and development of bending, forming drawing reverse re-drawing and combination dies |
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|To design blank development for axi- symmetric, rectangular and |
|elliptic parts |
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|1 |
|T2 |
|730-731 |
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|25 |
|Blank development for above operations, Types of Bending dies |
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|1 |
|T2 |
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|731-734 |
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|26 |
|Press capacity, Spring back, knockouts |
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|1 |
|T2 |
|735 |
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|27 |
|direct and indirect, pressure pads, Ejectors |
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|T2 |
|745 |
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|28 |
|Variables affecting Metal flow in drawing operations, draw die |
|Inserts |
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|1 |
|T2 |
|761-773 |
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|29 |
|draw beads, ironing |
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|1 |
|T2 |
|736 |
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|30 |
|Design and development of bending, forming |
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|1 |
|T2 |
|737-761 |
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|31 |
|drawing reverse re-drawing and combination dies |
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|1 |
|T2 |
|T2 |
|670-671 |
|757-759 |
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|32 |
|Blank development for axi- symmetric, rectangular and |
|elliptic parts |
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|1 |
|T2 |
|773-778 |
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|33 |
|Single and double action dies |
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|1 |
|T2 |
|778-781 |
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|Unit V Design of Moulds |
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|34 |
|Types of moulds and dies for various processing methods |
|To understand the types of moulds and dies for various processing methods |
|To know the Injection Mould design and basics of mould construction |
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|To design of feed system, ejection system, venting and cooling system. |
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|To know the mould alignment concepts and De-moulding Techniques |
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|To design Moulds with a slide core and split cavity moulds |
|1 |
|R3 |
|3-30 |
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|35 |
|Mould and Die Design Concept and Materials |
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|1 |
|R3 |
|31-73 |
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|36 |
|Injection Mould Design, Basics of mould construction |
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|1 |
|R3 |
|513-531 |
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|37 |
|Methodical Mould Design, Design of Feed System, Ejection System |
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|2 |
|R3 |
|74-134 |
|135-167 |
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|38 |
|Venting, Design of Cooling system |
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|1 |
|R3 |
|179-180 |
|224 |
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|39 |
|Mould alignment concepts and De-moulding Techniques. |
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|2 |
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|R3 |
|257-300 |
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|40 |
|Moulds with a slide core, Split cavity moulds |
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|1 |
|R3 |
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|Total : 45 Periods |
| Total duration required : 45periods + 3 periods for Tests = 48 Periods |
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|Additional Contents over and above the curriculum: |
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|41 |
|Developments of Jigs and Fixtures |
|To understand the latest Developments of Jigs and Fixtures |
|To know the Inspection Devices |
|To understand the Shop Setups |
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|1 |
|T1 |
|177-190 |
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|42 |
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|Inspection Devices |
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|1 |
|T1 |
|195-206 |
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|43 |
|Shop Setups |
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|1 |
|T1 |
|R4 |
|207-215 |
|316-326 |
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| |Assignments/ Tutorials/ Case Study/ Innovative Work | | |
|Assignment: |
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|A1: Design and drawing of a drill jig and a milling fixture. The drawings should contain all the tolerances and materials. |
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|Submission Deadline for A1: August 20, 2013. |
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|A2: Design and drawing of one progressive die |
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|Submission Deadline for A2: October16,2013. |
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|Case Study/ Innovative Work: |
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|Assembly drawings of a simple drill jig or turning fixture using CAD software |
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|Course Assessment Plan: |
|Internal Assessment (20) |
|Internal Assessment Test 1 will be conducted for 50 Marks. (5*2=10 & 2*20=40) |
|Internal Assessment Test 2 will be conducted for 50 Marks. (5*2=10 & 2*20=40) |
|Internal Assessment Test 3 will be conducted for 50 Marks. (5*2=10 & 2*20=40) |
|Tests as per the schedule given by the university - Best two performance is considered for assessment out of 15. |
|Course Attendance |
|assessment out of 5 ( Attendance percentage 96-100 : 5; 91-95 : 4; 86-90 : 3; 81-85 : 2; 76-80 : 1) |
|External Assessment (80) |
|University will conduct end semester examination for 100 marks (10*2=20 & 5*16=80) |
|Performance will be considered for assessment out of 80. |
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|Course Outcome: |
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|CO1.Design a suitable jig and fixture for any component. |
|CO2.Select proper location and clamping of the components. |
|CO3.Decide a suitable jig/fixture among many types according to the design of the component. |
|CO4.Understand the press working operations, design the strip layout and various elements of dies, design the blank development for bending, forming and drawing |
|operations |
|CO5.Design the feed system, ejection system, venting and cooling system for plastic injection moulds. |
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|PEOs Mapping : |
|This Course is conducted to achieve the following Programme Educational Objectives (PEOs): |
|Be able to apply the principle of Mechanical engineering, Mathematics, Mechatronics, Automobile Engineering and related Engineering fields to solve real time |
|problems appropriate to the discipline and succeed in the career. |
|Be able to contribute and communicate effectively in multidisciplinary projects and perform services related to mechanical engineering to meet the customer |
|requirements satisfactory in both quality and quantity. |
|Function with ethics and responsibility and also professionally involve and contribute to the society. |
|Update the modern trends in engineering and technology through continuous learning and be the leaders in their professional society. |
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|The Outcome of this course facilitate to attain the following Program Outcomes (POs): |
|Out come (b) an ability to design and conduct experiments, as well as to analyze and interpret data, |
|Outcome (c) an ability to design a system, component, or process to meet desired needs within realistic constraints such as economic, environmental, social, |
|political, ethical, health and safety, manufacturability, and sustainability, |
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|CO/PO |
|PO1 |
|PO2 |
|PO3 |
|PO4 |
|PO5 |
|PO6 |
|PO7 |
|PO8 |
|PO9 |
|PO10 |
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|CO1 |
|2 |
|2 |
|2 |
|2 |
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|1 |
|1 |
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|CO2 |
|2 |
|2 |
|2 |
|1 |
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|1 |
|1 |
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|CO3 |
|2 |
|2 |
|2 |
|2 |
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|1 |
|1 |
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|CO4 |
|2 |
|1 |
|2 |
|1 |
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|1 |
|1 |
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|CO5 |
|2 |
|2 |
|2 |
|2 |
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|1 |
|1 |
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|Course Instructor HOD-Mech PRINCIPAL |
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