$11. Match List I List II A. Die-sinking B. Deburring C. Fine hole drilling (thin material) D. Cutting/hardening sharp materials 1. Abrasive jet machining 2. Laser beam machining 3. EDM 4. Ultrasonic machining 5. Electrochemical grinding Codes : B C D (a) 3 4 1 (6) 2 4 3 (c) 3 1 5 (d) 4 1 3 (Ruonorty conferred on steel by the

$11. Match List I List II A. Die-sinking B. Deburring C. Fine hole drilling (thin material) D. Cutting/hardening sharp materials 1. Abrasive jet machining 2. Laser beam machining 3. EDM 4. Ultrasonic machining 5. Electrochemical grinding Codes : B C D (a) 3 4 1 (6) 2 4 3 (c) 3 1 5 (d) 4 1 3 (Ruonorty conferred on steel by the

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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1. Small grains are used for grinding hard work materials and large grains are used for grinding soft work materials”. Explain the reason(s) behind this statement.
(USCS units) A turning operation is performed using a rake angle of 15°. Cutting speed = 200 ft/min, feed= 0.012 in/rev, and depth of cut = 0.100 in. The chip thickness ratio measured after the cut = 0.48. Determine (a) chip thickness after the cut, (b) shear angle, (c) friction angle, (d) coefficient of friction, and (e) shear strain (USCS units) The turning operation in the previous problem involves a work material whose shear strength = 52,000 lb/in2. Based on your answers to the previous problem, compute (a) shear force, (b) cutting force, (c) thrust force, and (d) friction force.
Identify, which of the following is used for fine grinding operation in specimen preparation for microscopic examination of engineering materials. O a . Emery Papers. O b . Bench Grinder, O c. Disc Polishing Machine . O d . Belt grinder.
In machining operation, if velocity doubled then the tool life reduced to 1/16 th of initial value. What is the Taylor's tool life index (n) for a machining operation?
The structure of a grinding wheel is defined as 1-A material that holds the abrasive grains together to form a grinding wheel 2-The density of the grains in wheel 3-Indicates the strength of the bond in the wheel 4-The size of the abrasive grains in the wheel
Orthogonal cutting, in a machining process,The attacking team sawdust (α) is 10 ̊. operationchip (t0) 0.5 mm and machining beforeAfter the chip coating (tc) is 1,125 mm.Accordingly, in machining;a) Slip plane (ϕ),b) Shear strain (γ) calculator
Which order arranges the following manufacturing processes from the least precise to the most precise tolerance limits?POSSIBLE ANSWERS1 . Turning, grinding, casting2 . Casting, turning, grinding3 . Casting. grinding, turning4 . Turning, casting, grinding
A HSS tool is used to turn a steel workpart that is 300 mm long and 80 mm in diameter. The parameters in the Taylor equation are: n = 0.13 and C = 75 (m/min) for a feed of 0.4 mm/rev. The operator and machine tool rate = $30.00/hr, and the tooling cost per cutting edge = $4.00. It takes 2.0 min to load and unload the workpart and 3.50 min to change tools. Determine: Tutting speed for maximum production rate, Tool life in min of cutting, and Cycle time and cost per unit of product. determine cutting speed for minimum cost.
Grade of a grinding wheel is defined as the The density of the grains in wheel A material that holds the abrasive grains together to form a grinding wheel Indicates the strength of the bond in the wheel The size of the abrasive grains in the wheel
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The bond of a grinding wheel is defined as A material that holds the abrasive grains together to form a grinding wheel The density of the grains in wheel The size of the abrasive grains in the wheel Indicates the strength of the bond in the wheel
The following data were obtained in a study taken on a horizontal milling machine:Parts produced per cycle: 8.Average measured cycle time: 8.36 minutes.Average measured stress time per cycle: 4.62 minutes.Average fast traverse time: 0.08 minutes.Average cutting time with electrical power: 3.66 minutes.Performance rating: 115%.Clearance (machine time): 10%.Slack (effort time): 15%.The operator works on the task 8 hours a day and produces 380 parts. How many standard hours does the operator work? What is the operator's efficiency for the 8-hour day?