Manufacturing Processes – Theory of Metal Cutting & Machine Tools

محاضرة بعنوان
Manufacturing Processes – Theory of Metal Cutting & Machine Tools
Joyjeet Ghose
Introduction to Manufacturing Processes
Manufacturing Processes
CLASSIFICATION OF MANUFACTURING PROCESSES
Manufacturing Processes and Manufacturing system
Production System – The Big Picture
Application of Manufacturing Processes
Application of Manufacturing Processes (Gears)
Diagrammatic Representation of Material Removal Operations
Examples of cutting processes
An Introductory video on Manufacturing Processes
Machine Tools
Machining Parameters
Cutting Parameter Relationships
Cutting Parameters
Selection of cutting speed and feed
Cutting tools & its characteristics
Typical carbide inserts
Properties of Cutting Tool Materials
Cutting tool material and recommended speed range
Cutting tool materials hardness and strength
Operating Characteristics of Cutting tool materials
Single Point Cutting Tool Geometry
Right hand single point cutting tool
Significance of Rake and Relief Angles
Cutting tool angles and their significance
The rake angle for a tool depends on the following fact
Relief Angles
Cutting tool angles and their significance
Tool signature
Designations for a Right-Handed Cutting Tool
THEORY OF METAL CUTTING
Orthogonal and Oblique Cutting
Assumptions
Mechanics
Metal cutting Terminologies
Chip thickness ratios
Velocity Relationship
Cutting forces
Forces acting on Chip in two-dimensional cutting
Merchant’s Circle Diagram
The procedure to construct a merchants circle diagram
Relationship of various forces acting on the chip with the horizontal and vertical cutting force from Merchant circle diagram
Power required in Metal cutting
Specific Energy
Approximate specific-energy requirements in cutting operations.
Theory of Ernst and Merchant (1944)
Merchant’s second solution (Modified Merchant’s Theory)
Stress and Strain acting on the chip
Thrust Force vs Rake Angle
Shear and Normal Force
Temperature Distribution in the Cutting Zone
Temperature Distribution in Turning
Hardness Distribution in the Cutting Zone
References 
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