Mechanical Engineering - Production Engineering - Discussion

Discussion Forum : Production Engineering - Section 1 (Q.No. 16)
16.
The tool made of cemented carbide wear out faster at
slow speeds
medium speeds
fast speeds
very fast speeds
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
16 comments Page 1 of 2.

Kareem said:   1 decade ago
Because the time available for wearing is more.

Ajit kumar bisoyi said:   1 decade ago
Because it is powder metallurgy technique and cobalt binder and its temperature is high.

Saikumar said:   1 decade ago
Cemented carbide tools are used for machining stainless steels, carbon steels which are very hard.

Naman Gandhi said:   1 decade ago
In slow speed the contact between surfaces are more so it is obvious that at slow speed it will wear more.

Sathish said:   1 decade ago
Yes you are right @Naman as the speed decreases, the friction between the tool and W/P increases. So as the friction increases wear also increases.

Gaurav said:   1 decade ago
Friction will be less at higher speeds.

Kalyan said:   9 years ago
It is a powder metallurgy technique so slow cutting the heat generation is too high so metal remove rate is high.

AMIYA MISHRA said:   9 years ago
At slower speed time available for heat dissipation in the tool material is high, hence the temperature of tool increases, which leads to decrease in tool tip's strength, finally resulting rapid tool wear.

Navdeep said:   8 years ago
As per my knowledge, the only thing we know about the carbide tools tha they works better in compression and worst in tension, in higher working speed, compressive forces are more but the carbide tool can withstand that forces because of its property that it works well in compression but working in slower speed led to breakage of the carbide tool as tension forces are more there.

Nikunj Mangroliya said:   8 years ago
Because Time required for wear is more. It is made by powder metallurgy it is used to machining of steel. It is very Hard.


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