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   



