This preview shows page 1. Sign up to view the full content.
Unformatted text preview: i 2 Basic Requirements of Tool Materials
Other factors which influence the performance of cutting tools are:
6. Relative hardness of the tool and work material
Abrasive particles, such as scales, on the surface of the workpiece
Chemical compatibility of the tool and work material
Condition of the machine tool, rigidity, for example
Type of machining operation, in particular whether continuous or
interrupted cuts occur, which is important for materials with a low
resistance to brittle fracture. Major Classes of Tool Materials
Major Cutting speeds for different tool materials
Tool materials Cutting speed
(m/min) HSS 20 - 40 WC 80 – 200 Ceramic 200 – 400 CBN 200 – 500 Diamond 300 - 1000
300 Tool Configuration and Materials
Integral to the tool or as attached inserts.
Integral Major Classes of Tool Materials
1. Carbon Tool Steel - Softens at 250 C, used for machining soft
materials, as in woodworking.
Up to 1870, tools in use were all of this type....
View Full Document
This note was uploaded on 02/04/2014 for the course ME 3162 taught by Professor Nus during the Spring '13 term at National University of Singapore.
- Spring '13