Discontinuous chips and continuous chips

                                    Discontinuous chips

• Discontinuous chips are formed during machining of brittle material.
• The factor responsible for the formation of discontinuous chips are low cutting speed and small rake angle.
• Cast iron during machining produces discontinuous chips.

• Continuous chips 
• Continuous chips are formed during machining of ductile material.
•   The factor responsible for the formation of continuous chips are high cutting speed and large rake angle
• In continuous chips cutting, the maximum heat depends upon the velocity of cutting.
• The continuous chips are in the form of long coils having the same thickness  steel durithroughout. 
• Mild steel during produces continuous chips.
•     In continuous chips with built up edge :-

1. In continuous chips with built up edge are formed during machining of ductile material.

 2. The factors responsible for the formation of continuous chips with built up edge is low cutting speed and small rake angle.
 3. cutting edge of the tool is dull,then during machining continuous chips with built up edge are formed..
4.  If the cutting speed is increased, then  the built up edge becomes smaller and finally doesn't form a  2. The factors responsible for the