Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 7th Sem New 2172002 Automated Manufacturing I Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VII(NEW) EXAMINATION ? SUMMER 2019
Subject Code:2172002 Date:14/05/2019
Subject Name:Automated Manufacturing - I
Time:02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Explain types of Automation. 03
(b) Applications of CNC Technology in Manufacturing. 04
(c) The following component is to be made using a CNC turning Centre equipped with a
FANUC controller. Write a complete manual part program for machining as shown
in fig.1.
All Dimension are in mm
Fig 1.
07
Q.2 (a) List ten stratergies for automation and process improvement. 03
(b) Explain closed loop and open loop control system in CNC machine. 04
(c) With the help of neat sketch, explain the methods of eliminating the backlash in
recirculating ballscrews.
07
OR
(c) Schematically explain the followings:
1. Multiple turning stock removal cycle.
2. Multiple facing stock removal cycle.
3. Pattern repeating cycle.
07
Q.3 (a) What is the stick-slip phenomenon in friction guideways? 03
(b) Why the friction guideways are not used in CNC machine tools? 04
(c) What is the advantage of subprograming? What is the format for a subprogram call? 07
OR
Q.3 (a) Explain Automatic Tool Changer(ATC) in CNC machine. 03
(b) Differentiate Automatic Tool Changer(ATC) and Automatic Pallet Changer(APC) in
CNC machine.
04
(c) Explain with schematic diagrams the simple drilling and pack drilling. 07
Q.4 (a) Difference between AGV and AS/RS system. 03
(b) Differnace between forword engineering and reverse engineering. 04
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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VII(NEW) EXAMINATION ? SUMMER 2019
Subject Code:2172002 Date:14/05/2019
Subject Name:Automated Manufacturing - I
Time:02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Explain types of Automation. 03
(b) Applications of CNC Technology in Manufacturing. 04
(c) The following component is to be made using a CNC turning Centre equipped with a
FANUC controller. Write a complete manual part program for machining as shown
in fig.1.
All Dimension are in mm
Fig 1.
07
Q.2 (a) List ten stratergies for automation and process improvement. 03
(b) Explain closed loop and open loop control system in CNC machine. 04
(c) With the help of neat sketch, explain the methods of eliminating the backlash in
recirculating ballscrews.
07
OR
(c) Schematically explain the followings:
1. Multiple turning stock removal cycle.
2. Multiple facing stock removal cycle.
3. Pattern repeating cycle.
07
Q.3 (a) What is the stick-slip phenomenon in friction guideways? 03
(b) Why the friction guideways are not used in CNC machine tools? 04
(c) What is the advantage of subprograming? What is the format for a subprogram call? 07
OR
Q.3 (a) Explain Automatic Tool Changer(ATC) in CNC machine. 03
(b) Differentiate Automatic Tool Changer(ATC) and Automatic Pallet Changer(APC) in
CNC machine.
04
(c) Explain with schematic diagrams the simple drilling and pack drilling. 07
Q.4 (a) Difference between AGV and AS/RS system. 03
(b) Differnace between forword engineering and reverse engineering. 04
2
(c) Describe briefly various guidance methods available for automated guided
vehicle(AGV).
07
OR
Q.4 (a) Write down basic component of automated storage/retrival system. 03
(b) Brifly describe the two basic approaches in computer aided process planning. 04
(c) The length of the storage aisle in an AS/RS = 240 ft and its height = 60 ft. suppose
horizontal and vertical speeds of the S/R machine are 400 ft/min and 60
ft/min,respectively. The S/R machine requires 20 sec to accomplish a pick up ?and ?
deposit operation. Find : (a) throughput for the aisle under assumptions that storage
system utilization = 90% and a ratio of single-command to dual-command cycles of
3:1.
07
Q.5 (a) Difference between AS/RS system and carousel system. 03
(b) Contact and non-contact type inspection techniques. 04
(c) Explain the application and advantage of integration of CAQC with CAD/CAM
systems.
07
OR
Q.5 (a) Write down application of RP techniques. 03
(b) Classification of rapid prototyping processes. 04
(c) Describe in brief one of the RP process laminated object manufacturing 07
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This post was last modified on 20 February 2020