This presentation gives details on Heat Generation in Metal Cutting tool. There are three zones of heat generation where heat generation equation is also derived by analytical method.
HAND TOOLS USED AT ELECTRONICS WORK PRESENTED BY KOUSTAV SARKAR
Heat in metal cutting
1. By
Amit Sonchhatra (11BM081)
Athar Kothawala (11BM082)
Karan C. Prajapati (11BM083)
Yudhishthir Ramnani (11BM084)
Samiraj Anupam (11BM085)
1
Heat in Metal Cutting
School of Technology
Knowledge Corridor, Raisan, Gandhinagar-
382007,Gujarat
2. Introduction
2
90 to 100 % of Mechanical Energy is converted
into Thermal Energy.
Hence, Temperature is of major concern.
The mechanical process and the thermal dynamic
process are tightly coupled together.
Cutting temperatures strongly influence tool wear,
tool life, workpiece surface integrity, chip
formation mechanism and contribute to the
thermal deformation of the cutting tool.
14. High Temperature Effect on Tool
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Reduces strength of the tool and formation of
create wear.
Shortens tool life
Causes thermal distortion
Causes dimensional change in work piece
Temperature on metal cutting and cutting fluids,
making of control dimensional accuracy difficult
15. Temperature Control in Metal Cutting
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Application of Cutting Fluid (coolant).
Changing the cutting condition by reduction of
cutting speed and/or feed.
Selection of proper cutting Geometry.
16. Cutting Fluid
Properties Functions
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High thermal
conductivity and
specific heat.
Odorless
Non-Corrosive to
work and machine.
Non-toxic to operating
worker.
Low Viscosity
Lubrication
Reduction of cutting
force and energy.
Cooling
Improve surface finish
17. Types of Cutting Fluid
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Cutting
Fluids
Oil based
Chlorinated
oil
Mineral oil Fatty Oils Soluble oil
Sulphurised
oil
Water
based