Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 7th Sem New 21720022172010 Automated Manufacturing I Previous Question Paper
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VII (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2172002/2172010 Date: 19/11/2018
Subject Name: Automated Manufacturing - I
Time: 10:30 AM TO 01:00 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) What are the advantages of ballscrews over leadscrews? 03
(b) Explain three phase of a typical automation migration strategy. 04
(c) The following component is to be made using a CNC Turning Centre equipped with
a FANUC OT controller. Write a complete manual part program for machining of
the component shown in fig.1. Take Raw material of size ?152 x 255 mm. Limit
Maximum spindle Speed to 2500 RPM.
Fig 1. (All Dimension are in mm)
07
Q.2 (a) Explain three types of automation. 03
(b) What is difference punched cards and punched tape? 04
(c) Write down part program using (i) Cartesian and (ii) polar coordinate system for
machining the holes on the pitch circle diameter in the part shown in figure 2.
07
OR
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VII (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2172002/2172010 Date: 19/11/2018
Subject Name: Automated Manufacturing - I
Time: 10:30 AM TO 01:00 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) What are the advantages of ballscrews over leadscrews? 03
(b) Explain three phase of a typical automation migration strategy. 04
(c) The following component is to be made using a CNC Turning Centre equipped with
a FANUC OT controller. Write a complete manual part program for machining of
the component shown in fig.1. Take Raw material of size ?152 x 255 mm. Limit
Maximum spindle Speed to 2500 RPM.
Fig 1. (All Dimension are in mm)
07
Q.2 (a) Explain three types of automation. 03
(b) What is difference punched cards and punched tape? 04
(c) Write down part program using (i) Cartesian and (ii) polar coordinate system for
machining the holes on the pitch circle diameter in the part shown in figure 2.
07
OR
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2
(c) Write down part program for machining the holes on the pitch circle diameter in the
part shown in figure 3.
07
Q.3 (a) Explain the difference between modal and non-modal codes. 03
(b) What are the advantage of LM guideways? 04
(c) Differentiate between machine zero, part zero and programmers zero. 07
OR
Q.3 (a) What is canned cycle ? 03
(b) Differentiate between Direct and Distributed. 04
(c) The work table of a NC machine is driven by a closed loop positioning system. Lead
screw pitch is 5mm and is coupled directly to the motor shaft with gear ratio of 5:1.
The optical encoder generates 125 pulses per revolution of its output shaft. The table
has been programmed to move a distance of 200mm at a feed rate of 450mm/min.
1. How many pulses are received by the control system to verify that the table
has moved exactly 200mm?
2. What are the pulse rate and the motor speed that corresponds to the specified
feed rate?
07
Q.4 (a) What is an automated guided vehicle system (AGVS) ? 03
(b) Name the three categories of automated guided vehicle. 04
(c) What is process planning ? Brifly describe the two basic approaches in computer aided
process planning.
07
OR
Q.4 (a) What is the advantage of subprograming? What is the format for a subprogram call? 03
(b) Identify the three application areas of automated storage/ retrival systems. 04
(c) The length of the storage aisle in an AS/RS = 280 ft and its height = 46 ft. suppose
horizontal and vertical speeds of the S/R machine are 200 ft/min and 75 ft/min,
respectively. The S/R machine requires 20 sec to accomplish a pick up ?and ?deposit
operation. Find : (a) single command and dual command cycle times per aisle (b)
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) Application of rapid prototyping techaniques 03
(b) What is the AS/RS system and carousel system? 04
(c) With neat sketch explain six different types of coordinate masuring machine (CMM)
configuration.
07
OR
Q.5 (a) Describe in brief one of the RP process laminated object manufacturing. 03
(b) Explain Contact and non contact type inspection techniques in CMM. 04
(c) Explain the difference between the following cycles with respect to the spindle
rotation and tool movements.
07
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VII (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2172002/2172010 Date: 19/11/2018
Subject Name: Automated Manufacturing - I
Time: 10:30 AM TO 01:00 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) What are the advantages of ballscrews over leadscrews? 03
(b) Explain three phase of a typical automation migration strategy. 04
(c) The following component is to be made using a CNC Turning Centre equipped with
a FANUC OT controller. Write a complete manual part program for machining of
the component shown in fig.1. Take Raw material of size ?152 x 255 mm. Limit
Maximum spindle Speed to 2500 RPM.
Fig 1. (All Dimension are in mm)
07
Q.2 (a) Explain three types of automation. 03
(b) What is difference punched cards and punched tape? 04
(c) Write down part program using (i) Cartesian and (ii) polar coordinate system for
machining the holes on the pitch circle diameter in the part shown in figure 2.
07
OR
www.FirstRanker.com www.FirstRanker.com
www.FirstRanker.com
www.FirstRanker.com
2
(c) Write down part program for machining the holes on the pitch circle diameter in the
part shown in figure 3.
07
Q.3 (a) Explain the difference between modal and non-modal codes. 03
(b) What are the advantage of LM guideways? 04
(c) Differentiate between machine zero, part zero and programmers zero. 07
OR
Q.3 (a) What is canned cycle ? 03
(b) Differentiate between Direct and Distributed. 04
(c) The work table of a NC machine is driven by a closed loop positioning system. Lead
screw pitch is 5mm and is coupled directly to the motor shaft with gear ratio of 5:1.
The optical encoder generates 125 pulses per revolution of its output shaft. The table
has been programmed to move a distance of 200mm at a feed rate of 450mm/min.
1. How many pulses are received by the control system to verify that the table
has moved exactly 200mm?
2. What are the pulse rate and the motor speed that corresponds to the specified
feed rate?
07
Q.4 (a) What is an automated guided vehicle system (AGVS) ? 03
(b) Name the three categories of automated guided vehicle. 04
(c) What is process planning ? Brifly describe the two basic approaches in computer aided
process planning.
07
OR
Q.4 (a) What is the advantage of subprograming? What is the format for a subprogram call? 03
(b) Identify the three application areas of automated storage/ retrival systems. 04
(c) The length of the storage aisle in an AS/RS = 280 ft and its height = 46 ft. suppose
horizontal and vertical speeds of the S/R machine are 200 ft/min and 75 ft/min,
respectively. The S/R machine requires 20 sec to accomplish a pick up ?and ?deposit
operation. Find : (a) single command and dual command cycle times per aisle (b)
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) Application of rapid prototyping techaniques 03
(b) What is the AS/RS system and carousel system? 04
(c) With neat sketch explain six different types of coordinate masuring machine (CMM)
configuration.
07
OR
Q.5 (a) Describe in brief one of the RP process laminated object manufacturing. 03
(b) Explain Contact and non contact type inspection techniques in CMM. 04
(c) Explain the difference between the following cycles with respect to the spindle
rotation and tool movements.
07
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3
(i) G74 and G84
(ii) Boring and back boring cycles
*************
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This post was last modified on 20 February 2020