TURNING OPERATIONS
Turning operation generates a cylindrical and rounded motion with the use of a single point tool. The definition of turning means a stationary tool with a rotating workpiece. A turning operation is a most common process – especially for seal cutting. It is a highly optimized process, which requires consideration of various factors in the turning application
Turning can be broken down into various basic applications which includes:
1) Longitudinal Turning
2) Facing
3) Profiling
The basic applications above would require specific type of tools, cutting data and programming. This is to ensure that the turning operation will run smoothly, in the most efficient way
TURNING CONSIDERATIONS
These initial considerations will affect the choice of turning tools and how they are applied. Consider the following dimensions and quality demands of the component to be machined:
• Type of applications – Longitudinal or Profiling | Internal or External
• Type of methods – Roughing or Finishing
• Large,stable component
• Small, long, slender
• Thin-walled component
• Corner radius
• Quality demands – Tolerance or surface finishing
D 1-2
3-4
3-4R
5-6
5-6R
7-19
7-19R
8
9
10
11-12
13-14
15-18
20-21
22
22VI
23-24
25
26-27
26LO
26-27
28
31S
32S
32L
38
D12R
D11R
D11SR
D12SR
D12VSR
1
2
3-4
3-4R
5-6
5-6R
8
9
9S
10
10S
11-12
13-14
15-18
20-21
22
22VI
23-24
25
26-27
26LO
27LI
28
28L
29-30
29OR
30OR
31
31A
31L
32S
32A 



