Mechanical Engineering - Production Engineering - Discussion
Discussion Forum : Production Engineering - Section 1 (Q.No. 13)
13.
A single point thread cutting tool should ideally have
Discussion:
16 comments Page 1 of 2.
Ravi said:
1 decade ago
Using Zero Rake angle only we can produce threads. Why because if we use other then zero rake angle it will damage threads produced.
Sanjit kumar sharma said:
1 decade ago
Single point thread cutting tool should have positive rake angle to provide more strength.
Kareem said:
1 decade ago
Dear @Sanjith if you increase the rake angle the area of the tool will be reduced so the strength also reduces, in case of carbide tools we use negative rake angles because carbide tools are weak in tension. And coming to our answer if we use other than zero rake angle for thread cutting the rake face of the tool goes on to the thread and it causes the damage to the thread.
Sudhakar said:
1 decade ago
A single point thread cutting tool should ideally have positive rake angle. Because of positive rake give more safety to thread with respect to zero or negative rake angle.
(1)
Akib Kherani said:
1 decade ago
Well i've read all the answers present here, none provide a reason which is worth satisfaction actually.
Thread cutting tool is a type of form (shape) tool, and recommendations for a zero rake angle is that is should be used where the shape of the tool is the shape of workpiece!
Thread cutting tool is a type of form (shape) tool, and recommendations for a zero rake angle is that is should be used where the shape of the tool is the shape of workpiece!
Sagar said:
1 decade ago
A positive or negative rake angles direct the flow of chips to the already made thread. If hot chips rubs against the threads, it will be damaged. So zero take angle is preferred.
Akash said:
1 decade ago
A single point thread cutting tool should have zero rake angle because what actually happens with the positive rake angle is that the chips formed under the rake face may flow side ward and try to weaken the thread formed.
Hence it is advisable to use zero rake angle for thread cutting and also for brass work pieces.
Hence it is advisable to use zero rake angle for thread cutting and also for brass work pieces.
(4)
Rahul said:
9 years ago
What type of rake in carbide tools?
Abir said:
9 years ago
@Rahul.
In carbide tool, the negative rake angle will be used.
In carbide tool, the negative rake angle will be used.
Anand Yadav said:
9 years ago
For thread cutting, single point cutting tool with positive rack angle is used.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers