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TOOL DESIGN
UNIT – I
Tooling materials and heat treatment: Properties of materials, ferrous, nonferrous, non metallic, tooling materials, heat treating.
UNIT - II
Design of single point cutting tools: Single point, cutting tools-various systems of specifications, geometry and their inter relation, theories of formation of chip and their effect.
UNIT – III
Design of multipoint cutting tools: Drill geometry, Design of Drills, Rake & Relief angles of twist drill, speed, feed and depth of cut, machining time, forces, Milling cutters, cutting speeds and feed-machining times-design-form cutters.
UNIT-IV
Design of jigs and fixtures: Basic principles of location and clamping, locating, methods and devices, jigs, definitions, types, general consideration in the design of jigs, drills bushing, methods of construction, fixtures-vice fixtures milling, boring, and lathe grinding fixtures.
UNIT-V
Design of sheet metal blanking and piercing: Fundamentals of die cutting operating, power press types, General press information, Material handling equipment, cutting action in punch and die operation. Die clearance, and types of Die construction. Die design fundamentals-blanking and piercing die construction, pilots, striper and pressure pads presswork material, strip layout, short run tooling for piercing.
UNIT-VI
Design of sheet metal bending, forming and drawings die: Bending dies, drawing dies, forming dies, drawing operations, variables that effect metal flow during drawing. Determination of blank size, drawing force, single and double action draw dies.
UNIT-VII
Tool life and tool wear: theories of tool wear-adhesion, abrasive and diffusion wear mechanisms forms of wear, tool life criteria and Mach inability index.
UNIT-VIII
Using plastics as tooling materials: introduction, plastics commonly used as tooling material application of epoxy plastic tools construction methods of plastic tooling metal forming operations with Urethane dies. Calculating forces for urethane pressure pads.
TEXT BOOKS :
1. Donaldson, Leain and Goold, Tool Design, Tata Mc Graw Hill/ Lecain & Goold.
2. Tool Design – Mehta
REFERENCES :
1. Surendra Kenav and Umesh Chandra, Production Engineering Design (Tool
Design) Satyaprakashan, New Delhi 1994.
2. Amitabha Battacharya and Inyong Ham, Design of cutting Tools. Use of Metal
Cutting Theory. ASTME publication Michigan USA., 1969.
3. A Bhattacharya, Principles of Metal cutting, New Central Book Agency, Calcutta
For more details, visit http://jntu.ac.in/dap/syl.html
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