Computer Integrated Manufacturing Systems (MPI 107) M.Tech. (SEM. 02) 2018-19 PDF

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TEST PAPER M.TECH...

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END SEMESTER EXAMINATION, 2018-19 M. Tech. (TERM / SEM. 02) MPI 107 : COMPUTER INTEGRATED MANUFACTURING SYSTEMS Time : 3 Hrs.

Maximum Marks : 100

Note : 1. Attempt All sections. 2. Marks are indicated against each section.

SECTION - A Q.1

Attempt ANY FIVE questions of the following:

(5 4=20)

(i)

What are the applications of automated production line?

(ii)

Explain the problems of using conventional NC machine.

(iii)

What is a programmable parts feeder?

(iv)

What does the term reverse engineering mean in the context of CMM machines?

(v)

What is the advantage of a vertical storage carousel over a horizontal storage carousel?

(vi)

Name few the contact type inspection instruments used in industry.

(vii)

List the various applications of machine vision system.

SECTION - B Q.2

Attempt ANY FIVE questions of the following:

(5 4=20)

(i)

What are the three basic components of an NC system?

(ii)

What is an end effector? Explain the five joints types used in robotic arms and wrists.

(iii)

A roller conveyor follows a pathway 35 m long between a parts production department and an assembly department. Velocity of the conveyor is 40m/min. Parts are loaded into large tote pans, which are placed onto the conveyor at the load station in the production department. Two operators work the loading station. The first worker load parts into tote pans, which take 25 sec each tote pan holds 20 parts. Parts enter the loading station from production at a rate that is in balance with this 25-sec cycle. The second worker loads tote pans onto the conveyor, which takes only 10 sec. Determine: (a) spacing between tote pans along the conveyor, (b) maximum possible flow rate in parts/min (c) the minimum time required to unload the tote pans in the assembly department.

(iv)

Elaborate different types of AS/RS types. 1

Contd…..

(v)

Explain (a) Line balancing (b) processing technology (c) system reliability.

(vi)

Explain the different types of manufacturing and the extent of computer control in each type of manufacturing.

(vii)

In a 10-station transfer line, the probability that a station breakdown will occur for a given work part is equal to 0.01. This probability is the same for all 10 stations. Determine the frequency of line stops per cycle on this flow line using the upper-bound approach.

(viii) Explain the significance of break-even point using suitable diagram.

SECTION - C Q.3

Attempt ANY TWO of the following:

(2 10=20)

(i)

Explain that how a non-contact inspection instruments work.

(ii)

Describe the need for CIMS and the issues addressed by CIMS.

(iii)

Explain part delivery at workstations in automated assembly systems.

(iv)

Explain the engineering analysis of NC Positioning system in open-loop positioning systems.

SECTION - D Q.4

Attempt ANY FOUR of the following:

(4 10=40)

(i)

What is Automated Inspection? Explain any automated system used in the industry.

(ii)

Describe the workpart transfer mechanisms.

(iii)

What is the difference between SCARA over gantry robot? How SCARA robot is used for material handling in industry.

(iv)

Distinguish between contact and Non-contact methods of inspection.

(v)

The oval rail of a carousel storage system has length = 12 m and width = 1 m. There are 75 carriers equally spaced around the oval. Suspended from each carrier are six bins. Each bin has volumetric capacity = 0.026 m'. Carousel speed = 20 m/min. Average P&D time for a retrieval = 20 sec. Determine: (a) volumetric capacity of the storage system and (b) hourly retrieval rate of the storage system.

(vi)

Write a G code and M code used in CNC Programming ___________________________________________________________________________

2

Contd….....