A side and face cutter 125 mm diameter has 10 teeth. It operates at a cutting speed of 14 m/min with a table traverse 100 mm/min. the feed per tooth of the cutter is

This question was previously asked in
RRB JE CBT-2 (Mechanical) Official Paper (Held On: 30 Aug, 2019 Shift 1)
View all RRB JE ME Papers >
  1. 10 mm
  2. 2.86 mm
  3. 0.28 mm
  4. 0.8 mm

Answer (Detailed Solution Below)

Option 3 : 0.28 mm

Detailed Solution

Download Solution PDF

Concept:

Feed rate in slab milling operation is given by, 

f= f× N × Z 

Where, ft is the feed per tooth, N = Spindle rotational speed (in rpm), Z = Number of teeth in cutter (teeth per rev)

Cutting velocity \(V = \frac{{\pi DN}}{{1000}}\)

Calculation:

Given:

D = 125 mm, Z = 10, V = 14 m/min, fm = 100 mm/min

\(N\; = \frac{{1000 \times V}}{{\pi D}} = \frac{{1000 \times 14}}{{\pi \times 125}} = 35.67\)

Feed per tooth \({f_t}\; = \frac{{{f_m}}}{{NZ}} = \frac{{100}}{{35.67 \times 10}} = 0.28\frac{{mm}}{{tooth}}\)

Latest RRB JE ME Updates

Last updated on Mar 27, 2025

-> The CBT II Examination is now scheduled for 22nd April 2025. 

-> The RRB JE Mechanical Notification 2024 was released for 1145 vacancies.

-> Candidates applying for the recruitment should have a Diploma or B.E/B.Tech degree in Mechanical Engineering or relevant streams.

-> The selection process of the JE Mechanical includes Computer-Based Test 1, Computer-Based Test 2, Document Verification, and Medical Examination.

-> The RRB JE Mechanical Salary for the selected candidates will be from Rs. 13,500 to Rs. 38,425.

Get Free Access Now
Hot Links: teen patti gold apk download teen patti gold new version 2024 teen patti royal