CMF332 Design of Press Tools Syllabus:
CMF332 Design of Press Tools Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
At the end of this course the student should be able to
• Understand sheet metal processes for different press tool operations and estimate percentage of utilization and economy factor.
• Identify the elements and working mechanisms of various press tools.
• Design of press tools for automotive components.
• Analyse the tools for Bending, Forming and Drawing operations.
• Understand the die material and manufacturing process
UNIT I PRESS WORKING TERMINOLOGIES AND ELEMENTS OF CUTTING DIES
Press Working Terminologies – operations – Types of presses – press accessories – Computation of press capacity – Strip layout – Material Utilization – Shearing action – Clearances – Press Work Materials – Center of pressure- Design of various elements of dies– Die Block – Punch holder, Die set, guide plates – Stops – Strippers – Pilots – Selection of Standard parts.
UNIT II DESIGN OF CUTTING DIES
Design and preparation of manufacturing drawing for simple blanking, piercing, compound and progressive dies for industrials components.
UNIT III INTRODUCTION TO BENDING AND DRAWING DIES
Difference between bending and drawing – Blank development for above operations – Types of Bending dies – Press capacity – Spring back – knockouts – direct and indirect – pressure pads –Ejectors – Variables affecting Metal flow in drawing operations – draw die inserts – draw beadsironing.
UNIT IV DESIGN OF BENDING AND DRAWING DIES
Design and development of bending, forming, drawing, reverse redrawing and combination dies – Blank development for axisymmetric, rectangular and elliptic parts – Single and double action dies.
UNIT V MATERIALS AND HEAT TREATMENT
Elements of press tool – Selection of Materials – Selection of Heat treatment process- Methods of manufacturing – Surface requirements – Fit and Tolerance – design of tool, preparation of manufacturing drawing and process planning for a given component.
TOTAL : 45 PERIODS
COURSE OUTCOMES:
Upon the completion of this course the students will be able to
1. Explain the necessity of press tool for Manufacturing of Stage, Progressive, Bending and Compound tools
2. Analyse the design constraints in the given problem
3. Apply the design rule for designing and manufacturing of press tools
4. Design and Drafting of press tools for considering real time issues of Manufacturing, Testing and Assembly
5. Select suitable die material and manufacturing process
TEXT BOOKS:
1. Joshi P.H “Press tools – Design and Construction”, S. Chand & Co Ltd. 2001.
2. Paquin J.R. & Crowley, “Die Design Fundamentals”, Industrial Press Inc. 3rdEd. 2006. ISBN: 9780831131197
REFERENCES:
1. ASTME Fundamentals of Tool Design Prentice Hall of India.
2. Eugene Ostergard, “Advanced Die Design”, Natl Tooling & Machining Assn, 1993, ISBN 13: 9780070460935
3. Ivana Suchy, “Handbook of Die Design”, New York-Mc GRAW-HILL: 2nd Edition, 2006, ISBN:9780071462716
4. K. Venkataraman, “Design of Jigs Fixtures & Press Tools”, Anne Publications, 2015.
5. Donaldson, Lecain and Goold, “Tool Design”, Tata McGraw Hill, 2000.