Drill ki feed kya hai in hindi:- Welcome My Website- iticourse.com Friends, what do I mean by drill key feed in this post? etc. have been told.
What is meant by feed of drill?
“In a job a drill is cutting with a certain speed. The depth it goes inside in one round is called the feed.
The distance traveled by the drill in one revolution depends on the size, type of drill and the metal to be cut. And one more thing is that if the size of the drill is small, then that less feed is given. Otherwise the drill will break. And if the drill size is bigger, then more feed is given to it.
Similarly, the feed also depends on the hardness of the metal. And if drilling is done on a hard job, less feed is given. And when drilling on soft jobs, more feed is given.
Description of feed formula
1.This formula is used to make a through or throw hole. And to this the cone shape of the drill is not added.
Feed(F) = L/T×N mm/rev
In this formula, [L = ड्रिल द्वारा चली गई दूरी]
[T = समय]
[N = चक्कर/मिनट]
2. This formula is used for closed or blind holes. This formula simply adds the height of the drill point to the distance traveled by the drill.
Feed(F) = L+B/T×N mm/rev
In this formula, B = 0.3 D
[जहाँ D = मिमी में ड्रिल का व्यास होता है।]
drill feed schedule
These are as follows-
|No. no,||Drill diameter (in metric system)||feed/circle|
|1.||1 to 2.5||0.04-0.06|
|2.||2.6 to 4.5||0.05-0.10|
|3.||4.6 to 6||0.075-0.15|
|4.||6.1 to 9||0.10-0.20|
|5.||9.1 to 12||0.15-0.25|
|6.||12.1 to 15||0.20-0.30|
|7.||15.1 to 18||0.23-0.33|
|8.||18.1 to 21||0.26-0.36|
|9.||21.1 to 25||0.28-0.38|
Friends, what do you mean by drill key feed? good post engaged If yes then do comment and share.
More Information:- What is chuck? he’s like that
My Website:- iticourse.com