Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Estimate the Machining Time
A hollow workpiece of 60 mm outside diameter and 150 mm length is held on a mandrel among centers and turned all over in 4 passes. If the approach length = 20 mm, over travel = 12 mm, average feed = 0.8 mm/rev., cutting speed = 30 m/min, estimate the machining time.
Solution
We know that,
Cutting speed = π DN /1000
or, 30 = ( 60 × π N )/1000
N = 159 rpm
Now, the total (length) traveled by the tool in a single pass in given by :
L = 150 + 20 + 12
= 182 mm
Therefore, the total length traveled by the tool in its 4 passes is given by :
L1 = 182 × 4 = 728 mm
Now, the machining time (T) is given by following:
T = L1/ feed × N
= 728 / (0.8 × 1.59)
= 5.72 minutes
Objectives After studying this section, you should be capable to: define basic nature of plastics, differentiate between various types of plastics, define polym
What is the diff between system underfoing cycle and system undergoing process
matle cutting
At a fixed point in a strained material the intensities of normal stress on the planes at right angles to each other are 20 N/mm 2 and 10 N/mm 2 . Evaluate the principal stresses
Q. Intermodular Piping Connections Alignment of pies shall be achieved as detailed in the construction drawings. Special attention shall be paid to the alignment and installati
A 1.5m long column has circular cross-section of 5cm diameter. One of the end of the column is fixed in the position and direction and other end is free. Taking factor of safety as
Question: The disk 3 shown in the figure rotates at a constant angular velocity ω 3 = 2.0 rad/s. A slider in a slot in the disk causes rod 2 to rotate. When the slider is
methods in surface development
Process Selection and Sequencing In this, some factors, which have an influence in all processes, are discussed. The factors include size, shape complexity, tolerances and produ
Performance Criteria This is assumed that an FMS is the part of a superior production process. Consequently the performance of the FMS is not a major goal but imply to attain c
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd