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A.R ENGINEERING COLLEGE, VILLUPURAM 605 601

DEPARTMENT OF MECHANICAL

ENGINEERING

QUESTION BAN

Su! "o#e $ME2201Na%e& Manufacturing Technology-I 'ear/Se %&II / III

UNIT- IPART A (2 Marks)

1. What is metal spinning process? Define casting?

2. When o !o" make core (or) #hat is f"nction of core in mo"ling san?

$. %&plain the core makingprocess?

'. Mention the specific aantages of caron i o&ieprocess?

*. Write the composition of goo mo"ling san?

+. What are chaplets?

,. -ist the factors to e consiere in the choice of metal melting f"rnace?

. What are the reasons for the casting efects of col sh"ts an misr"n?

/. 0ame fo"r ifferent casting efects.

1.o# casting efects are ientifie?

Part34 (1+ Marks)

1. What are the pattern allo#ances? %&plain riefl! each.

2. Disc"ss the properties of mo"ling san.

$. %&plain the 562 process of core making state its aantages anapplications.

'. 7tate the ifferent t!pe of mo"l. Write a short note on 89reensan

mo"l an shell mo"ling

*. Write a neat sketch of a c"pola: %&plain its operate.

+. %&plain #ith a simple sketch ho# metal is melte in a c"pola f"rnace.

,. What are the ifferent t!pes of f"rnace "se in fo"nr!? Descrie in

etail #ith neat sketches an! one of them.

. %&plain riefl! the ario"s mo"ling metho "se in fo"nries.

/. %n"merate the contin"o"s casting efects an s"ggest s"itale

remeies.

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1.%&plain the ario"s non estr"ctie inspection methos of cast pro"cts.

UNIT - 2 (2 Mar)*+

,art-A

1. Define #elingprocess.

2. Define f"sion #eling .

$. What are ifferent metho of #eling !o" kno# ?

'. Define arc crater.

*. Mention an! t#o aantages of D .5 an A. 5 #eling.

+. What o !o" "ner stan ! straightpolarit!?

,. When is the straight polarit! "se for arc #eling?

. What is the p"rpose of coating on an arc #eling electroe?

/. What are the t#o main ifferent of cons"male electroe an non

cons"male electroe?

1.o# oes M=9 #eling iffer from T=9 #eling?

11.What is the main ifferent et#een "pset "tt #eling an flash"tt

#eling ?

12.What are the ario"s t!pes of flame?

1$.Define plasma arc #eling ?

Part34 (1+ Marks)

1. %&plain the metho of laser eam #eling an gie their

applications

2. %&plain the metho of electron eam #eling an gien their

applications

$. Descrie plasma Arc #eling an gien their applications

'. Descrie an e&plain >ltrasonic #eling an gie their applications

*. %&plain Thermit #eling an gien their applications

+. What is frication #eling? gie their aantage an limitations

,. Disting"ish et#een raing: solering an #eling

. Write riefl! on testing an inspection

/. Descrie raingprocess

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UNIT-III

,art-A (2 Mar)*+

1. Define col #orking of metals

2. Define re cr!stalliation temperat"re

$. 9ie some e&amples for mechanical #orking of metals

'. Define forging

*. 9ie some asic forging operations

+. Define e&tr"sion ratio

,. Define t"e ra#ing

. Define egree of ra#ing

/. 0ame fo"r ifferent press3#orking operations

1.What are the efects in forging operations?

Part34 (1+ Marks)

1. %&plain the hot #orking an col #orking #ith s"itale e&amples

2. Define rolling an isc"ss accoring to the classification

$. Disc"ss the ario"s forging operations

'. 9ie the aantage of press forging oer rop forging

*. What are the efects in forgings? %&plain it.

+. o# the pipe an t"es are man"fact"ring?

,. Define ra#ing an isc"ss the classification #ith neat sketch

. What are the efects in rolleparts?

>0=T3=@

,art-A (2 Mar)*+

1. What is sheet metal #ork?

2. #rite o#n an! fo"r sheet metal characteristics

$. What is meant ! clearance?

'. What is stretching?

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*. Define the term springackB.

+. o# force e&erte on the form lock is calc"late

,. What are the formailit! test methos?

.

/. What is s"per plasticit! of metals?

Part34 (1+ Marks)

1. Descrie shearing operations in a sheet metal #ork #ith a neat sketch

2. Descrie ario"s t!pes of ening operations #ith its neat sketches

$. %&plain an! one metho of stretch forming operation #ith a neat sketch

'. %&plain h!ro forming process #ith its neat sketches. 7tate their

aantage an applications

*. %&plain the po#er spinning process #ith a neat sketch .gie theirapplications

+. o# magnetic p"lse forming process is carrie o"t on sheet metal?

,. %&plain peen forming process #ith a neat sketch

. What is s"per plastic of metal? ho# this process is carrie o"t on sheet metals?

UINT-

PART3A (2 Mar)*+

1. o# the plastic is efine?

2. 9ie some e&amples of aiti(es

$. 9ie some e&amples for thermosettingplastics.'. 9ie some e&ample of thermoplastics.

*. 9ie some aities ae to the man"fact"ring of r"er.

+. What are the processes of thermoplastics?

,. What are the t#o t!pes of inCection mo"ling?

. What are the t!pes of compression mo"ling?

/. efine copol!meriation

1.What are the foameplastics?

Part34 (1+ Marks)1. What are the characteristics of the forming an shapingprocesses?

2. What are the t!pes of mo"ling an thermoplastics?

$. %&plain the #orkingprinciples an application of

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a. inCection mo"ling.

lo# mo"ling

c. rotational mo"ling .

filmlo#ing

'. %&plain the thermoformingprocess

*. %&plain in"ction an "ltrasonic methos.

+. %&plain #orking anprinciple of applications of

a. compression mo"ling.

transfer mo"ling

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