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
At site locations, the WorleyParsons QC Specialist (QCS) is responsible to verify that the requirements for PMI as specified in the purchase order/subcontract documents are impleme
Classification Based on Type of Welding Fusion welding : These processes involve fusion of the base metal to complete the weld. Fusion welds generally do not require thea
Following sets of the three forces act on a body,. In which case resultant cannot be zero? 1) 10N, 10N, 10N 2)10N, 10N, 20N 3)10N, 20N, 20N 4010N, 20N, 40N Ans) In 4th
no passing rule definition
Martempering: The piece to be hardened is wholly austenitized and after that quenched in a lead of salt bath held at a temperature simply above at that martensite would begin
What is Wire-frame Wire-frame models use the simplest data structures and they are ambiguous. Wire frame is a well-known example that consists of 16 vertices and 32 edges. We
Applications of spot welding As spot welding can be employed for Al, Cu, Ni and Mg alloys. It is not advisable to spot weld steels with carbon content greater than 0.25 % unles
In the drawing, the weight of the block on the table is 380 N and that of the hanging block is 215 N. Ignore all frictional effects, and assuming the pulley to be massless.
Types in trusses
Evaluate the acceleration of the three weights: A system of weight connected by the string passing over pulleys A and B is shown in figure given below. Find out acceleration
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