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Mechanical Engineering - Production Engineering - Discussion

Discussion Forum : Production Engineering - Section 1 (Q.No. 16)
Production Engineering
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.
Rajkumar said:   4 years ago
At slower speed, the time available for heat dissipation in the tool material is high, hence the temperature of tool increases, which leads to a decrease in tool tip's strength, finally resulting in rapid tool wear.
(2)
Kunal said:   4 years ago
If increased the speed then more chance demaging the tool & workpiece.
(1)
Anomee said:   5 years ago
Carbide tool is used for HIGH to VERY HIGH speed accurate machining. So It wears out at low speed. Low speed is out of syllabus for carbide tool.
(1)
Madhu.m.g. said:   6 years ago
At lower speeds, friction will be higher so tool wear is more.
Ajay semwal said:   7 years ago
At high speed, friction will be less hence it is good for tool life.
(1)
VINAV said:   7 years ago
At slow speed the kinetic friction is more.
Nikunj Mangroliya said:   7 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.
Navdeep said:   7 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.
AMIYA MISHRA said:   8 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.
Kalyan said:   8 years ago
It is a powder metallurgy technique so slow cutting the heat generation is too high so metal remove rate is high.
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