CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Thread Cutting Part-IV

For cutting d...

Question

For cutting double start screw threads of pitch $1.0 m m$ on a lathe, the thread cutting tool should have a feed rate of

A

0.5 m m / r e v

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

1.0 m m / r e v

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

2.0 m m / r e v

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

4.0 m m / r e v

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $2.0 m m / r e v$
Feed in thread cutting $=$ lead of threads
$=$ number of starts $\times$ pitch
$= 2 \times 1.0 = 2 m m / r e v$

Suggest Corrections

thumbs-up

0

Similar questions

Q. Determine the tranfomation ratio (TR) of the gear train connecting the the spindle and the lead screw of

4 T P I

required to cut

1.0 m m

pitch screw threads in a centre lathe.

Q. A three-start external square thread of 12 mm pitch and outside diameter of 65 mm is to be cut on a centre lathe which has a 7 mm pitch lead screw. Depth of thread to give 0.14 clearance is _______ mm.

Q. A non standard thread of pitch

3.175 m m

is to be cut on a lathe having lead screw of pitch

6 m m

. A change gear set provdied with the lathe has one gear each with the following number of teeth:

20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 127.

The correct pairs of change gears

(a / b \times c / d)

for machining the given thread are (assuming that transmission ratio of the rest of the kinematic train between the late spindle and lead screw is equal to 1)

Q. A single point cutting tool with a nose radius of

0.4 m m

was used to turn a component in a lathe employing feed rate of

0.3 m m / r e v

. If the feed rate is double, the ideal surface roughness (peak-to-valley height) produced on the components will increase by a factor of

Q. Assertion(A): Single start threads are used for fastening purposes.
Reason(R): Single start threads are easier to produce in a lathe.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Thread Cutting Part-IV

PRODUCTION

Watch in App

explore_more_icon

Explore more

Thread Cutting Part-IV

Other Production

Join BYJU'S Learning Program

CrossIcon