Mechanical Engineering - Production Engineering - Discussion
Discussion Forum : Production Engineering - Section 1 (Q.No. 10)
10.
When the cutting edge of the tool is dull, then during machining
Discussion:
21 comments Page 1 of 3.
Ilyas said:
7 years ago
Built up edge.
Decreases surface finish because tool is not contact with the workpiece for some time only buildup edge is in contact with workpiece and its save tool life because tool life is fixed so when the tool is not in contact with workpiece that time is saved but in bookish language you can say that the tool life is increased.
Decreases surface finish because tool is not contact with the workpiece for some time only buildup edge is in contact with workpiece and its save tool life because tool life is fixed so when the tool is not in contact with workpiece that time is saved but in bookish language you can say that the tool life is increased.
(1)
Fawad said:
8 years ago
When the Cutting edge is sharp then small segmented chips are produced but when cutting edge is dull then temperature increases at work surface and workpiece become red hot and malleable so the chips formed are continued not segmented.
(1)
Amir said:
6 years ago
Built up edge:
When the contact between workpiece (W/P) & cutting tool happen then heat will be generated.
And if the heat goes above their melting point then w/p will damage and it causes to the built-up edge.
When the contact between workpiece (W/P) & cutting tool happen then heat will be generated.
And if the heat goes above their melting point then w/p will damage and it causes to the built-up edge.
Hanees said:
1 decade ago
During cutting because of high co-efficient of friction the temperature will rise up an some of the chips is deposited to the edge of the cutting tool. This edge of the cutting tool is called built up edge (BUE).
Bipesh kumar said:
8 years ago
When the cutting edge is blunt the contact between tool and metal is more, heat generated will be more, so the chips having high temp stick to the edge of the tool this is known as built up edge.
K.s pal said:
1 decade ago
Due to more heat develop there will be melting of machined surface and that will cause a little form of welding due to which an irregular edge will form called build up edge.
Anmol said:
1 decade ago
Due to the blunt edges more heat will be generated and also time of cutting will be more due to which it will have enough time to form welding and hence BUE is formed.
Rahul said:
9 years ago
Built of edge means at the time of machining more heat generate at that time material chance to melt and this metal material stick on the toll that condition.
Vivek singh said:
1 decade ago
Due to high heat generated between tool w/p interface, adhesion or welding takes place between tool and chip and occurs in ductile material with slow speed.
D rahul said:
9 years ago
Build up edge means deposition of chips on cutting edge of the cutting tool.
Built up edge,
(1) Reduces surface finish.
(2) Increases tool life.
Built up edge,
(1) Reduces surface finish.
(2) Increases tool life.
(1)
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