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Manufacturing process-II Question papers

1. 1. USN IOME/AUITL45 Fourth Semester B.E. Degree Examination, December 2Ol2 Manufacturing Process - Il Time: 3 hrs. Max. Marks:100 Note: Answer FIVEfull questions, selecting st lesst TWO questions from eaclt part. o o PART -A d O. I a. Write shorl notes on the following: d i) Rake angles; ii) Orthogonal and oblique cutting; iii) Toolsignature with example. (I6 Marks) E o b. During orthogonal machining with a rake angle of l0o and uncut thickness of 0.125mm. The average thickness of chip is 0.43mm. Evaluate cutting ratio and shear angle. G a (04 Marks)?abo* 2a. What doyou understand by i) 18-4- 1 HSS; ii) 6- 6 -4 -2 HSS. (04 Marks) b. With neat sketch, explain various heat generation zones during metalcutting along with heat7,.; distribution curve. (10 Marks) coa.=N c. With the help of neat sketch, explain Tool-Work thermocouple technique to measure tool-tipidl temperature. (06 Marks)Yo.)srDo> 3 a. With necessary sketches, explain various stages involved to produce hexagonal bolt usingi; .: turret. (08 Marks) b. Explain with neat sketch open and cross belt drive mechanism of a planer. (08 Marks)9O c. A shaper makes 36 complete strokes/min and the stroke length is 30 crn. The shaper has a cutting stroke to return stroke ratio of 3:2. Determine the cLrtting speed in mrmin. (04 Marks).:: t= ." 1 a. With a neat sketch, explain in detailthe nomenclature of twist drill. (08 Marks)2G b. Explain with neat sketch, the working principle of radialdrilling machine. (08 Marks)1-aL c. Give the advantages and disadvantages of CNC machines. (04 Marks) coX PART _ B-- 5 a. Explain following milling operations with relevant sketches:o: i) Form milling; ii) Gang milling; iii) Straddle milling. (10 Marks)aoaE b. Differentiate upmilling and down milling with sketches. (05 Marks)6i!o c. With the help of crank mechanisrn explain simple indexing. (05 Marks)JE 6 a.;(F^^oca Mention various bonding processes and explain vitrified and retinoid bonding process.-c-.- (08 Marks)F>7u b. Write short notes on the following: i) Grade; ii) Marketing systems for grinding wheel; iii) Structure. (12 Marks)!<* oio 7 a. With the help of neat sketch explain pull broach. (10 Marks)Z b. Mention in detail the advantages of honing and lapping process along with the uses of the processes. (10 Marks)Go.a 8 a. Explain laser beam machining process with relevant sketches of formation of laser beam and energy leveldiagram. (10 Marks) b. Explain in detailwith respect to AJM element influence on AJM process. (10 Marks) *****
2. 2. USN O6ME/IPflM/N{A/AU45 Fourth Semester B.E. Degree Examination, June 20lz Manufacturing Process - ll o O Time: 3 hrs. Max. Marks:100 o. E Note: Answer FIVE fuU questions, selecting atleast TWO I questions each from Part - A and Part - B. .J o v?o PART. A a. Explain the geometry of single point cutting tool with neat sketches. (08 Marks) b. Derive Fs = Fn cos (0 + B - 8) from Merchants circle diagram. (08 Marks) ;tr) c. What is the effect of cutting speed and depth of cut on tool life? (04 Marks) -atr Il coo .= .l ds- 2 a. Discuss the following tool materials as regards to composition, manufacturing and oYJ applications : i) HSS ii) ceramics. (08 Marks)-.d o b. Explain tool work thermocouple technique for measurement of tool tip temperature. oB (08 Marks) *a c. State the desirable properties of cutting fluids. (04 Marks) aP 4: oc) 3a. Differentiate between turret and capston lathes. (04 Marks) do b. write the classification of shaping machines based on different parameters. (08 Marks) a0c c. Explain with a neat sketch, open and cross belt drive mechanism of a planer. (08 Marks) (sd 4a. Sketch and explain radial drilling machine. (10 Marks)->r b. Explain with a neat sketch the nomenclature of a twist drill bit. (10 Marks) :a := PART. B <); 5a. Explain up milling and down milling principles. (06 Marks) b. the following milling operarions : i) Slot milling ii) Form milling. (06 Marks) lxplain C. Show the calculation for indexing 69 divisions in a milling machine by ot= i) compound indexing. !o The following index plates are available :6.H Plate No. I - 15, 16,17,18,19,20.trb0 Plate No. 2 - 21, 23, 27, 29, 31, 33.o= Plate No. 3 - 37,39,41, 43,47.49. (08 Marks):, !, a. Explain BIS specifications for grinding wheels. (06 Marks)-, < b. Write detailed classification of grinding machines. (08 Marks)-oi c. Discuss the principle of centreless grinding.o (06 Marks)z a. What is lapping? Explain hand lapping process. (10 Marks)Lo b. Explain the working principle of honing. (05 Marks)a c. State any three applications of lapping and honing. (05 Marks) a. Explain with a neat sketch, the working principle of ultrasonic machining. Mention the process parameters. (10 Marks) b. Explain with a neat sketch, the working of abrasive jet machining. Mention its applications. (10 Marks) *****
3. 3. -- _1J USN 06M845f Fourth semester B.E. Degree Examination, December 2011 Manufacturing processes - tI Time:3 hrs. Max. Marks:100 Note: Answer any FIYE full questions, selecting at least TWO questions from each part" I a. IART -A With neat sketches, explain the difference between orthogonal cutting and oblique cutting. () (06 Marks) 6J b. With a neat sketch, briefly explain the following, for a single point cutting tool : i) Back rake angle ; ii) End clearance angle ; iii) Side rake angle ; iv; SiOe relief angle. (08 Marks) G (, c" The following are the details during turning of a mild steel work piece : c} s €i feed:0.19mrn/rev , chip thickness = 0.385mm , depth of cut:2**. ?u Calculate : i) Chip thickness ratio ; ii) shear angle. (06 Marks) Fo* 2 a. Briefly explain the desirabie properties of a qutting tool rnaterial. (ES lVlarksi L: *-l b. Write short notes on the following cutting tool materials : a &w i) Cemented tungsien carbide ; ii) liSS. ({}5 Marks) dsF c. List any five factors for selecting a cutting fluid. (05 Marks) d. write short notes on the heat generated during rnetal cutting. ((}5 Marks) {.} E 3 a Hxplain with a neat sketch, the main parts of,a turret lathe, (08 Marks) o> h" Explain with a neat sketch, hydraulic shaper quick retum mechanisrn. (08 Marks) oi5 e. A shaping machine is used to machine a rectangular piece 18cm long and 35cm width, with cutting speed being 26 rnlr*in. Feed is 0.8 mm/cycle" Cutting stroke is adjusted to 20cm. QU 6JO Time for eutting to return stroke is 3:2. Find the time required fcrr rnachining the whole surface. (04 Marks) *a 4 a" with simple sketches, explain : i) Reaming ; ii) Boring. (04 Marks) b. r,ri-ith a neat sketch, explain the radial drilling machine. (06 Marks) ;:" il c" Expiain mr! u neat sketch, tire gcometry of a tr,vist drill" (04 &[artrs) d" A i2nim hole is to be drilled through a Z0rnrn thick plate. The cutting speeel is l2mm/min f)- -, F: oru and the feed rate is 0.12 rnrn/rev. Estimate the rnachining time. Taki G over travel pius the o.a clearance of the tool as 5mm. (06 Marks) (f; Bii P.ART -_ts L(l 5 a Differentiate betwean upmiiiing and down miiling. Show the chip cross section with figures ,F .H t,-- fCIr both the operaticrns" (06 Marks) Uc rb! b^ Sketcl: and explain the slabrnilling and gang milling operations. (08 Marks) f1) e. {llassify rniiling rnac}:.ines, b,riefly. {06lv[arks) aiP -, > 6 a. Explain the different types of abrasives. -_r <! b. Ilifferenriate between ii"o*rr* and plunge grinding. l3: ffill:i *rl cf c, Explain with neat sketches : i) Centreless grinding ; ii) Internal grinding. (08 Marks) o 7 & 7 a" Sketch and explain the process of lapping on a lapping rnachine. (10 Marks) rs L b. what is honing? Exptrain the vertical honing process. (07 Marks) o s, c. l,ist the ad,zantages and applications of honing. (s3 plarks) I a. With a neat sketclt, hr"iefly explain the operation of cufting, using a laser beam. (ls Marks) b. With a neat sketch, i:riefly explain the principle involved in ivater jet machiging. (10 iwarSsi ***ri<*
4. 4. USN 06ME45 Fourth semester B.E. Degree Examination, June/July 2011 Manufacturing Process - ll Time: 3 hrs. Max. Marks:100 Note: Answer FIYE fwll qaestions selecting at least TWO questions from each part. PART -A C) () o la. How is TOOL L[FE def,rned? On what factors does the tool life depend? (06 Marks) b. What is TAYLORs Tool life equation? Calculate the cutting speed for a tool to have a taol = life of 160 min. The same tool had a life of 9 minutes when cutting at 250 m/min. Take n :0.22 in the Taylors tool life equation. q 6 (08 Marks) o d c. Why can relief or clearance angles never be zero or negative? What is the effect of cutting C) L speed, feed rate and depth of cut on the force on cutting tool? (06 Marks) 9p=gf 2a. Write short notes on the following cutting tool materials. 6V i) Carbo,n steels ii) High speed steels iii) Cemented carbides (12 l}Iaries) ^^ll tr@ b. Discuss briefly "Temperatwe distribution in metal eutting", List the various methods of rd t measuring chip-tooi interface ternperature. (08 Marks) hbo g() ugl: c) 3a" Ditferentiate befween CAPSTAN and TURRET LATI{ES. (06 Marks) lr Horv shapers ar* cl;*^csified? Exptrain briefly i:Quick R*;fum Mee!:nnism" u\$ed in strapm *ith ::U nr;c sketch. rli.i! H*"ks) ui 4l {:. Stiit* thl :trritr .:liiir.r:ri.*,;d-.s }+i-l".,*er, S1{AP.Lli. atld Pl,il,JEP. 1{t,{ l"fu;:irs} i{ u-il-<o, * d"" Iliaw a rte&t sketeh rrt ].IVIST Dft.iLL by showing va:ior"rs }larts arcl ex-plain ;;soocdd nomenclature. (10 Marks)-oiE b. Find the time required to &ill 6 holes of 16 mm dia^each on a flange. Assume flargeEl d thickness:30 mm, Cutting speed:20 m/min, feed: 0.2 rnmlrev. (06 Marks).+ B c. List various work holding devices used in a DRILLING machine. (04 Marks) 5.uAXl;o. , PART _Bo-i 3a. Explain briefly with neat sketcle the following MILLING operations:}U i) Face Miiling ii) Angular Milling iii) End Milling (0e Marks)E() b. Show the calculation for indexing 28 equal divisions in a mitling machine. The fr:llowingi- <* index plates aTg aYZ. [1 x prares ilableboacoo Plate No. 1 15 t6 t7 18 t9 20o=90tr> Plate No. 2 2t 23 27 29 31 JJ=A)5k Piate No. 3 37 39 41 43 47 49qJ< Find the sirnple indexing arrangement. (06 Marks),.1 c{ c" List and explain briefly the various attachments used in milling machine. (05 Marks)0z 6a. Explain the faotors to be kept in mind in selecting a GRINDING WHEEL. (08 Marks)fl b. Describe the "CENTRE LESS GRINDING PROCESS". What are the various feeding methods used in centreless grinding? (08 Marks) c. What are natural and artificial abrasives? (04 Marls) I of2
5. 5. l-- :!- - 06ME4s 7a. What is a LAP? What for it is used and how does it difter from grinding? (06 Marks) b. Explainbriefly the LAPPING PROCESS. Give the examples of LAPPING WORK. (06 Marls) U. What is HONING? How are honing machines classified? List advantages and disadvantages of honing. (0E Marla) 8a. Explain briefly with a neat sketch the working principle of PLASMA AR.C machining. State also its characteristics, advantages and disadvantages with applications. (10 Marls) b. Explain briefly with a neat sketch the working principle of ULTRA SONIC Machining. State also its characteristics, advantages and disadvantages with applications. (10 Marks) *ttrttl.* 2 ofZ
6. 6. M 06ME4sY USN Fourth Semester B.E. Degree Examination, December 2010 Manufacturing Processes - ll Time:3 hrs" Max. Marks:100 Note: Answer any FIVE full questions, selecting at least TWO questions from each part. (.) o o Cd ! PART _ A 1 a. Sketch and explain the nomenclature of a single point cutting tool, highlighting the significance of different angles. d (10 Marks) o cd () b. Explain the following types of tool wear with necessary sketches : i) crater wear ; E9 ii) Flank wear. (lo Marks) 9p= y. dU 2a. Explain the different properties required of a cutting tool material. (08 Marks) -o ,, oor b. Explain the following cutting tool materials : With respect to usage, composition and c@ structure. i) High speed steel ; ii) Ceramics. (12 Marks) .= al (!\$ bs 3a. With a sketch, explain any two methods of taper turning, using a Lathe. (12 Marks) ()tr -.co eE trE b. With a sketch, explain one method of quick return mechanism of a shaper. (0s Marks) o> 8e 4a. Sketch and explain a radial drilling machine, highlighting its field of applications. (10 Marks) a= b. Sketch and explain the following drilling operation with their field of application.: bU i) Counter sinking ; ii) Counter boring, (10 Marks) (!o bo( PABT- E >€ a6 6< ..a) 5 a. Differentiate between a plain and an universal milling machine. (05 Marks) EO oe b. Explain with sketches, any three of the following : i) Straddle milling o-6- ii) Gang milling o!v o.i iii) Face milling 3u iv) Up milling and down milling. (15 Marks) oLE ko 6a. Sketch and explain a centreless grinding wheel, highlighting itsadvantages and disadvantages. (10 Marks) boo cbO o= b. Explain the different factors to be considered, in the selection of a grinding wheel. (10 Marks) o. ei =o o 7 Sketch and explain the following machines, indicating their field of applications : (r< i) Lapping machine (10 Marks) -N ii) Honing machine. (10 Marks) o z Write explanatory notes on any two of the following processes : d i) Electro chemical machining o a ii) Laser beam machining iii) Abrasive jet machining. (20 Marks) *!f,**rl.
7. 7. ivIIII USN Fourth semester B.E. Degree Examination, May/June 2010 Manufaeturing proeesses - Il 06ME45IIIIII Time:3 hrs. Max. Marks:100III Note: Answer any FIYE full qaestions, selectingIII at least Tl4/O questions from each part.IIIt-lolo - PART AliitdIL I a. with a neat sketch, explain the various parameters which make up the tool signature of alo- single point cutting tool. (08 Marks)lcdt6 b. Derive an expression for the shear angle in orthogonal cutting, in terms of rake angle andldls chip thickness ratio" (08 Marks)l()tdloIL c. Explain the functions of cutting fluids. (04 Marks)MoI ho* 2 a" Explain the factors which affect the machinbility of a material. (08 Marts) v2 b. A cast iron bar stock was tumed at 50 m/min, for which, the tool life was 3 hours. For the Ea same material, at 40 m/min, the tool life was 5 hours. Find the value of constant c and n in 5? bo ,, the Taylors tool life equation. Also, staie the type of tool material based on the value of n. .E! d00 (08 Marks) cdt c. With neat sketches, explain flank and crater wear (04 Marks) bPp L9 otr -c t) 3 a- With the help of a neat sketch, explain the turret indexing mechanism. (08 Marks) KL o> b. Explain the working of a hydraulic shaper mechanism, with aneatsketch. ioa ruu.loi *.- c. Compare shaper and planer in terms of their operation, type of workpiece and applications. .-U 6A (04 Marla) a 5U ;7 4 a. Draw a neat diagram of a radial drilling machine. Name all the parts and explain the d- -k principle of operation. (08 Marks) F hoc b. Explain the following operations, with simple sketches : tg(! Eu i) Reaming ; ii) Boring ; iii) counterboring ; iv) Trepanning. (08 Marks) >! -d 6< 13d c. Sketch and explain the nomenclature of a twist drill. (04 Marks) .>ts PART _ B 6 {= -lJ 5 a. Differentiate between : JO o. o. i) Up - milling and down milling Atw oi 6V ii) Simple indexing and compound indexing. (08 Marks) b. 69 teeth of a spur hear are to be cut around the periphery of a cylindrical blank. Recommend BU a suitable indexing mechanism (06 Marts) 6E u(D c. With a neat sketch, explain the working of an universal dividing head. (06 Marks) =d >i h< hoo Eoo 6a. Explain the centreless grinding process with a neat sketch. Also discuss the advantages and ()= limitations of the same. (08 Manrs) a. ii tr> b" Write a note on : i) Dressing and truing of grinding wheels ; ii) Wheel balancing. (08 Marks) =o 3L LF c. with an example, explain the specifications of a grinding wheel. (04 Marks) J< a. Explain the following, with neat sketches : i) Honing ; ii) Lapping. (10 Marks) -(..l o b. List the factors rvhich affect the lapping process. Discuss the influence of these parameters o on laPPing. (to Marks) E d ln a. ly,lain Machining [LBM], with a neat sketch. (08 Marks) the principle of Laser Beam o b. With a schematic diagram, explain the ultrasonic machining process c. IUSM]. (0s Marks) Discuss the applications and limitations of non conventi,onal machinirig processes conventional machining processes - over (04 Marks) *,f***
8. 8. 06ME4s SN/ Fourth Semester B.E. Degree Examination, Dec.o9/Jan10 Manufacturing Process ll Max. Marks:100 me: 3 hrs. Note: Answer any FIVE futl questions, selecting at least TWO questions from each part o o () PART.- A and oblique cutting with neat sketches. Give the differences between orthogon-al cutting (E _E (5 l. a. (06 Marks) E (08 Marks) Bb. Briefly describe the factors affecting tool life (06 Marks) 1 W"Jy tfr. tool fails during cutting? Explain, giving reasons tool wear gc. .(5 (,O o! fluids. (08 Marks) P c 2,a. Briefly explain the desirable properties and purpose of cutting ideal cutting tool material? Briefly .y.2 b. What are the desirable propertiei or characteristics of an c3 (06 Marks) G- 6c) explain cemented carbide tool material temperature Explain briefly tool -_ tr) .E,Jl c. List the various methods of measuring chip-tool interface c+ (06 Marks) work thermocouple method of measuring it E\$ tr- oo) Lo) (04 Marks) 9c La- Za. Differentiate between a capstan and a turret lathe a capstan lathe from a ,E D. Drawthetoollayoutforproducingahexagonalheadedboiton (08 Marks) Z> oQ hexagonal bar stock. of a shaper -L =.9 c- Witlithe help of a neat sketch, explain whitworth quick return mechanism Marks) 3E Yg oc) sketch (06 Marks) E€ +." Explain universal radial arm drilling machine, with a neat Pk h Eb Wiit ,irnpte sketches, explain the following drilling machine operations: (08 Marks) =6 Er i) Tapping ii) TrePaning body clearance, E(U C- f*ptuin tnJiollowing iwist drill nomenclature: Flutes, flank, face, land, lips, (06 Marks) 3a with a neat sketch bo o- x6) =(U =o- Eo_ PART -B O (E. -;i5.& Differentiate between the following in a miliing machine : , ?6 gfr ll uo milling and down milling ii) Face milling and end milling. (10 Marks) a€ b. what is indexing? Nu*. differeit methods of indexing. Briefly explain compound indexing (10 Marks) GC sO :fE method. o- >ts Briefly explain external cylindrical centreless grinding with a neat sketch. Mention the E ?;o.". oE (08 Marks) o.o advantages of same over centre type girding 5E o> b. Explain the following grinding wheel parameters (06 Marks) CC o< i) Gritii) Grade iii) Structure. (06 Marks) Explain the factors to be considered for selection of grinding wheels. c -oi o 6n Briefly explain the honing process with a neat sketch. State its advantages and Z .c (10 Marks) c disadvantages. o and disadvantages. to b. With a neat sketch, explain the lapping process State its advantages (10 Marks) o. .E & . a. Differentiate between conventional and unconventional machining process. (05 Marks) and demerits (10 Marks) b. Explain, with neat sketch, plasma arc machining. Give its merits c. List the uarurriug"r, disadvantages and of abrasive jet machining. (05 Marks) lnfrJ?lt*s
9. 9. USN 06ME45 Fourth Semester B.E. Degree Examination, June-July 2009 Manufacturing Process - llTime: 3 hrs. Max. Marks:100 Note : Answer any FIVE fall questions, selecting atleast TWO questions form esch Part - A and Part - B. PART. A7a. Wiih neat sketches, give ncmenclature of a single point cutting tool. (07 Marks) L Derive the conditions 2\$+F*y =1. Explain its significance withusual notations. /. (07 Marks) c. List various factors influencing tooi - life. Explain anv one of them. (06 Marks) a. List various cufiing tool r^raterials in the increasing order of their hardness. (06 Marks) b. Explarn with the help of neat sketches, heat distribution at tool and workpiece. (06 Marks) c. What are the methods of measurement of temporature of cutting tr:ol tip? Explain any one of them. (08 Marks) a. Differentiate between capstan and turret lathes. (s5 Marks) b. With a heat sketch, explain any one of the driving mechanisms used in a shaping machine. (08 Marks) o. Sketch a planning machine ineiicating major paris. Name any one of the rnechanism for quiek retum movement in a planer" (07 Marks)4a. List various drilling machines. (05 Marks) b. Draw neat sketch of a radial drilling machine indicating parts. (06 Marks) Sketch and mention the application of the drilling machine operations - counter boring reaming and trepanning. (09 Marks) BART - E a. With sketches, differentiate between up milling and Cown milling operations. (06 Marks) b. Draw a neat sketch to show major parts of a horizontal milling rnachine. (08 Marks) o. What is Xndexing? Explain compound indexing. (06 Marks) a. List various grinding wheel abrasives andoonding processes. (07 Marks) b. Sketch a centre type - cylindrical grinding machine indicating parts. (08 Marks) c. Differentiate between horizontal and vertical grinding machines. (05 Marks) a. Sketch and explain verticai lapping machine. (08 Marks) b. Name the parts along with a neat sketch of a tool head for honing of holes. (07 Marks) c. List the uses of lapping process (05 Marks) a. Mention any five non - traditional machining processes. (05 Marks) b. Explain AJM with aneat sketch. (10 Marks) c. What are the applications of non traditional machining methods? (05 Marks) *****
10. 10. USN 06ME45 Fourth Semester B.E. Degree Examination, June/July 08 Manufacturing Process IITime: 3 hrs. Max. Marks:100 Note : Answer any FIWfull questions, choosing at least twofull questions from each part. Part - AI a. Derive an expression for shear angle in terms of chip thickness co - efficient and rake angle for orthogonal cutting. (10 Marks) b. The following data refer to an orthogonal cutting process. Chip thickness 0.62 mm, feed 0.2 mm, rake angle 150. Calculate chip reduction co - efficient and shear angle. (05 Marks) c. Define tool life list out the factors that affect tool life. (05 Marks)2 a. Clearly explain the different factors that are to be considered during the selection of a cutting tool materials. (I2 Marks) b. With a neat sketch explain different heat affected zones during orthogonal cutting. (08 Marks)3a. Differentiate between a turret lathe and a capsten lathe. (06 Marks) b. Explain with a sketch keyway cutting on a shaping machine. (06 Marks) c. With a neat sketch explain hydraulic driving mechanism of a shaper. (08 Marks)4a. Sketch a radial drilling machine and lable all parts. (08 Marks) b. Explain the following operations on a drilling machine i) Boring ii) Counter sinking (10 Marks) c. List out drill bit materials. (02 Nlarks) Part - B5a. Clearly explain up milling and down milling. (10 Marks) b. Show the calculations for setting dividing head to mill 69 divisions on a spur wheel blank by compound indexing , (10 Marks) Clearly explain the designation process of manufacture and properties of following grinding wheels with i) Vitrified bond ii) Rubber bond. (12 Marks) b. With a neat sketch explain the principle of working of a center type cylindrical grinding machine. (08 Marks) a. Sketch and explain the process of lapping on a lapping machine. (10 Marks) b. What is honing? Explain vertical honing process. (07 Marks) c. List out advantages and applications of honing. (03 Marks)8a. With neat sketch explain electro chemical machine. (10 Marks) b. List out limitations and applications of i) Laser beam machining ii) Plasma Arc machining (10 Marks)
11. 11. Page No... 1 ME403 USNFourth Semester B.E. Degree Exarnination, January/February 2004 Mechanical Engineering Manufacturing Process II Time: 3 hrs.l [Max.Marks : 1OO Note: Answer any FwE fall questions. 1-. 2. Draw neat shetches whereaer necessa,ry. tr. (a) Draw MERCHANTS FORCE diagram and state the assumptions made in the development of such a diagram. (6 Marks) (b) Differentiate between orthogonal and obiique cutting methods. (6 Marks) (c) A seamless tubing 35mm outside diarneter is turned orthogonally on a lathe. The following data is available, ral,<e angle = 350, cutting speed=l5m/min, feed- 0.10mm/rev, Iength of continuous chip in one revolution is 50.72mm, cutting force=20ON, feed force 80N. Calculate the coefficient of friction, shear plane angle, velocity of chip along tool face and chip thickness. (8 Marks) 2. (a) Define tool life and explain the factors which affect the tool ]ife. (6 Marks) (b) Explain the mechanisms of F1ank wear and Crater wear. (8 Marks) (c) In a tool wear test with a high speed steel cutting tool, the foilowing values of tool life were obtained. Tool life Cuttins speed 30 min 25.0 m/min 1.5 min 70.0 m/min Caiculate the value of n and C of Taylors equation. (G Marks) 3. (a) Explain the different types of cuttingfluids. (6 Marks) (b) Differentiate between capstan and engine lathe. (6 Marks) (c) With the help of a tool layout give the tool schedule change for a hexagonal headed bolt. (8 Marks) 4. (a) Explain with a neat sketch the principal parts of a radial drilling machine. (10 Marks) (b) With a neat sketch expiain the twist drill NOMENCLATURE. (10 Marks) 5. (a) List the differences between a planer and a shaper. (4 Marks) (b) With a neat sketch explain any two operations that can be done on a shaper. (8 Marks) (c) Explain the With-worth quick return mechanism used in shaper. (8 Marks) Contd.... 2
12. 12. Page No... 2 6. (a) With a neat sketch explain the principal parts of a slotting machine. (b) ME403 (8 Marks) List the different mechanisms used to drive the table in a planer and explain I any one of them. (8Matks) (c) Differentiate between shaping and slotting machine. (4 Marks) 7. (a) List the different types of milling machines and with a neat sketch explain universal milling machine. (10 Marks) (b) Sketch and explain the following milling operations : i) Gang milling ii) Slab milling. (8 Marks) (c) Briefly explain simple indexing. (2 Marks) 8. (a) With a neat sketch explain the centreless grinding. (8 Marks) (b) Sketch and explain push type broaching tool. (6 Marks) (c) Write a note on the following : i) Lapping ii) Super finishing iii) Abrasives. (6 Marks) *****
13. 13. Page No... 1 dl ME408 Reg. No. Fourth Semestsr B.E. Degree Examination, July/August 2OOz Mechanical Engineering Manufacturing Process [I Tirne: 3 hrs.I lMax.Marks : 100 Note: 7. Amsuser a,ny FNE full que*tions. L. (a) Give the nomenclature of a single point cutting tool in ISO system. (5 Marks) (b) Explain the difference between orthogonal cutting and obiique cutting with at least trvo examples for each. (6+4 Marks) (c) Explain the different types of chip formation with a neat sketch. (6 Marks) 2. (a) List the types of cutting tool materials. (6 Marke) (b) What are the properties of good cutting fluid. (6 Marks) (c) Explain briefly creater rvear and flbnk wear. (5 Marks) (d) A 75 mm dia M.S bar was turned at 220 rpm to get a tool life of 14 minutes. The rpm was changed to 260 and tool iife obtained was 10 minutes. Find out the value of n and c. (5 Marks) 3. (a) With neat sketches explain i) Pdint angie ii) hand iii) Relief angles iv) Helix angle with reference to a twist drill. (8 Marks) (b) Explain the following lathe accessories and attachments.I i) Different types of chuck and their functions. ii) Different types of lathe rest iii) Catch plate and carriers. (12 Marks) 4. (a) Explain briefly Merchant circle diagram for force analysis. (E Marks) (b) Explain the difference in working between shaping and planing with respect to i) Retrative movement between tool and work piece. ii) Quick return mechanism used. iii) Size of workpiece used. (9 Marks) (c) Shaping machine is used to machine rectangular piece of 18 cm long 35 cm width cutting speed is 26mlmm. Feed 0.8 mm/cycle. Cutting stroke is adjusted to 20 cm. Tirne for cutting stroke to return stroke is 3:2. Find the time required for machining the whoie surface. (6 Marks) 5. (a) Sketch a oroaehing tool and name the parts. (6 Marks) &) What do you mean by grit, grain and structure of grinding wheel. (6 Marks) (c) With the help of block diagram explain the working of a plain center type cylindrical grinding machine. (8 Marks) Contd.... 2
14. 14. I Page No... 2 6. compound (b) Sketch the following cutters. i) Gear cutter (spur gear) ii) Fly cutter iii) End mill. (c) Index an angle of 42 degrees with Index plate having ME4O3 (a) What is indexing in milling operation? Clearly discuss about differential and indexing. (8 Marks) (6 Marks) I Side 1 : 24, 25,28, 30, 34, 37,38, 39 41, 42 and 43 Side 2 : 46, 47, 49, 5L, 53, 57 ,58, 59, 62 and 66. 6 i{arks) 1. (a) Define the term "Vehicle" as applied to lapping. What are the differences between troning and lapping? (8 Marks) (b) What is super finishing? How it differs from lapping and honing? (8 Marks) (c) What is burnishing? Where is it applied? (4 Marks) 8. Write short notes on any FOUR of the following : i) Types of cutting tooi materials. ii) Gea:: hobbing iii) Specification of p1a-ner machine. iv) Work holding devices in case of shaper. (v) surface grinders {4X5=20 Marks) ** * **
15. 15. r PageNo... I Reg. No. ME4O3 Fourth semester B.E. Degree Examination, February %ilO?- Meehanicat Engineering Maelrfacturin\$ Process II lMax.Marks : lOO Time: 3 hrs.j Note: 7. Answer GnY FM full qwestians s. iea* iketches"where requircd i;;; [Iarts] 1" {a} Briefly explain the mechanism and lpes of chip fonnation (1O circle (b) Derive the equation for co-efficient of friction using merchant ti}g;ffij (a) List and explain different types of Tool wear (8 Marks) 2. tb)DuringthemaehiningoflowcarbonsteelwithHsScuttin\$tooltl1efollowing observations were made: Cutttng sPeed, m/rnint 49 !9 Tool liie minutes : 40 10 (8 Marks) Derive the V-t relationship List the functlons of cutting fluid (4 Marks) (c) Explain the developments in HSS toois (5 Ma*s) 3. (a) iool materials (5 Marks) tb) Explain the properties of cutting (c) Exptain witl. a neat sketch the speciflcations of lathe. (1o Marks) 4. (a) wit]. sketch e>rplain taper turning by swivellin\$ the compound rest (8 Marks) Differentiate between capstan and turret and an engine [b) lathe (6 Marks) (c) With a sketch explain any one tool holding device {6 Marks) Give the nomenclature of twist drill with sketch (8 Marks) D. (a) tb) With sketch iliustrate the different parts of a standard shaper" (12 Marks) of shaper t}. (a) Explain urith neat sketch, whitworth quick return mechanism (8 Mar&s) (b)Explainthefeedmechanismbyfrictiondiscinplaner.(sMarks) (c)Inashaperwork,thelengthofstrokeisS00film,numberofdoublestrokesis 2 : 3 Find the per minute i" 50 ;d til-?*tio of return time to cutting time - (4 Marks) ;;iti.rg speed. a, (a)Withneatsketchexplainarborassemblyi:rn:illing.(6Marks) grlnding machine (Gllrarksi [b) sketch and explaln a sirnple tool and cutter (c) List the parameters used in the selection of grinding wheels (4 Marks) (d)Explainsomegoverningparametersofhoningprocess(4Marks) 8. (a) What are the purpose of lapping and honing? Explain the proces" * tf#Iff; (b)withsketchexplainhorizontalbroachingmachine.(sMarks) (c)Explainbrieflynon-precisionfirrishingoperations.(6Marks} *****
16. 16. ?.1 "14.t.lo u,/ r (Pages:2) ME. -403 DEGREE EXAMINATIONFOIIRTH SEMESTER B.E. (MECHANICAL ENGINEERING) MARCH 2OO1 MANUFACTIIRING PRO CE S S-II Maximum: 100 MarksTime : Three Hours Answer aruY five full questions Sketch neat fi.gures whereuer necessary (7 marks) 1. (a) Briefly describe orthogonal and oblique cutting . Why discontinuous chiPs (b) Namethevariouschipformedduringmetalcutting. preferred ? (7 marks) (6 marks) (c) Explain Flank wear and crater wear of ideal tool 2.6)NamedifferenttypesoftoolmaterialsWhatarethecharacteristics materials ? (7 maks) during metal cutting ? ft) Why cutting fluids are applied to tool and workpiece (6 marks) (7 marks) (c) Explain different types of cutting fluids (6 marks) 3. (a) How lathes are classifred ? (8 marks) (b)Describeprincipalpartsofaproductionlathewithaneatsketch. lathe. (c)WriteanyslxdifferencesbetweenaCapstanandTurretandanEngine (6 marks) (7 marks) 4. (a) Sketch and describe in brief a radial drilling machine (7 marks) (b) With sketches, explain any seuen drilling operations (c) Draw a simple twist drill with tapered shank and write its nomenclature. , (6 marks) (7 rnarks) 5. (a) Describe the quick-return mechanism in shaper (7 marks) (b) Withneatsketch,explainprincipalpartsofaslottingmachine iength is 180 mrn number (c) Find the cutting speed of the shaper when the stroke of double strokes per minute is 30 and the ratio of return time to cutting time is2:3. (6 marks) 6. (a) Write different tlpes of planer and explain standard double housing planer (10 marks) planning vertical (b) what are the common operations performed using planer" explain surfaces ? (6 marks) (4 marks) (c) Write any four differences between shaper and a ptraner Turn over
17. 17. FF 2 ME-4jB 7. (il Write different typs of milling machines. (4 marks) (b) Draw neat sketch of plain milling cutter and write elements of cutter. (6 marks) (c) How the size of a milling machine is specified ? (2 marks) (d) Explain up milling and down milling. (8 marks) 8. Write short notes on any four of the following :- (a) Merchants circle diagram. (b) Work holding devices in planer machine. (c) Tool layout in Capstan and Turret lathes. (d) Taylors tool-life equation. (e) Milling operations. (4x5=20marks)
18. 18. Page /Vo... I ME4O3I Reg. No. Fourth semester B.E. Degree Examination, August 2ool Mechanical Engineering Manufacturing Froc.ess If Time: 3 hrs.] [Max.Marks : ].OO Note: 7. Answer aily FM questions. 2. Draw neat sketches w.here rcquired. 1. (a) Briefly explain the elements of single point tool with a neat sketch (6 Marks) (b) Explain with slietch, the Merchants circle of forces (s Marks) (c) while machining c-sO steel with carbide tool having a tool g.o*"oy or 00 - 0o - 60 - 60 - 80 - 900 - 1**- (ortlogonJ ;il; system), t].e tangential force and feed force have been r"""a tB"uJzffiii #eEo^irl"il".u*rv. Calculate the Kinetic Co-efficient of fictio"-. (6 Marks) 2" {a) Explain the e{Iect of cutting parameters on tool (b) while machining carEon steelby life. (8 Marks} gTungsten-cobalt steel tool itwas observed that the tool life-was 60 minutel i thetooirir.ib;acuttingsp;;a;f ?11,:ilffis,:"ni?1?1,?3.T1#*3:f,tri* taking the index n as"o.i+9. (6 Marks) (c) Briefly explain the different types of cutting fluids (6 Marks) 3. i-"1 U* the properties of ceramics or cemented oxides (E Marks) (b) What are the cirterion used in valuating machinability (c) witrl a neat sketch explain any one of the gear (E Marks) feed mechanisms in lathe 4. (d wtrr neat sketch explain arry one type of collet chuck (1O Marks) (a Marks) (b) wittr neat sketch explain a radiai arilirrg machine (12 Marks) b. (a) With a sketch give the nomenclature of a Reamer (a Marks) (b) Explain with a neat sketch the working princlpre mechanism of a hydraulic shaper (c) In a shaper, the rgngth of stroke is 2oomm, rrdnute is 3o and tEe ratio of return tirne-tonumber of double """{i#Ti? ;itirrg til.;J;d.-;.i"d the cutting speed. (4 Marks) 6. (a) with. a neat sketch explain tool head of planer (6 Marks) (b) Explain with a sketch, flre vertical rnilling machine (c) Explain the different types of milling mac"hine (8 Marks) attachments (6 Marks) 7. (a) Briefly explain compound indexing (6 Marks) (b) Sketch and explain push type of bioaching tool (c) With sketch explain mounting of grinding-wtreet. (6 Marks) (8 Marks) 8. (a) Discuss the importance of surface flnsih generated by different production Processes (4 Marks) the process of lapping (c) lxntain !U] Briefly explain different types of non-precision finishing (6 Marks) operations. (6 Marks) (d) Explain different types of abrasives. (4 Marks) *****
19. 19. Page No... I ME4O3 Reg. No. Fourth Sernester B.E. Degree Examination, July/August zaoz Mechanical Engineering Manufacturing Process IfTime: 3 hrs.l lMax.Marks : lOO Note: 7. Ansuser anly FwE full questians. 1. (a) Give the nomenclature of a single point cutting tool in ISO system. (E Marks) (b) Explain the difference between orthogonal cutting and oblique cutting with at least two examples for each. (6+4 Marks) (c) Explain the different types of chip formation with a neat sketch. (s Marks) 2. (a) List the types of cutting tool rnaterials. (5 Marks) (b) What are the properties of good cutting fluid. (5 Marks) (c) Explain briefly creater wear and flank wear. (5 Marks) (d) A 75 mm dia M.S bar was turned at 220 rpm to get a tool life of 14 minutes. The rpm was changed to 260 and tool life obtained was 10 minutes. Find out the value of n and c. (5 Marks) 3. (a) With neat sketches explain i)Point angle ii) hand iii) Relief angles iv) Helix angle with reference to a twist drill. (8 Marks) (b) Explain the following lathe accessories and attachments. i) Different types of chuck and their functions. ii) Different types of lathe rest iii) Catch plate and carriers. (12Marks) 4. (a) Explain briefly Merchant circle diagram for force analysis. (5 Marks) (b) Explaip the difference in working between shaping and planing with respect to i) Relative movement between tool and work piece. ii) Quick return mechanism used. iii) Size of workpiece used. (9 Marks) (c) Shaping machine is used to machine rectangular piece of18 cm long 35 cm wiclth cutting speed is 26mlmm. Feed 0.8 mrrJcycle. Cutting stroke is idjusted to 20 cm. Time for cuttilg stroke to return stroke is 3:2. Find the time required for machining the whole surface. (6 Marks) 5" (a) Sketch a broaching tool and name the parts. (6 Marks) (b) What do you mean by gnt, grain and structure of grinding wheel. (6Marks) (c) with the help of block diagram explain the working of a plain center type cylindrical gr:inding machine. (8 Marks) Contd.... 2
20. 20. ME408Page No... 2 and 6. (a) what is indexing in milling operation? clearly discuss about differential (8 Marks) compound indexing (b) Sketch the following cutters i) Gear cutter (spur gear) ii) Fly cutter iii) End mill (6 Marks) (c) Index an angle of 42 degre"!-*i^h Ilaql plate having - sia" I : 24,n5,28, 30, -34, 37 ,3q, 39 4 42 -a1{ 43 (6 Marks) SiJ" Z : 46,47,4g,5L,53,57,58, 59 62 and 66 7, (a) Define the term Vehicle" as applied to lapping What are the differences(8 Marks) between honing and laPPing? (8 Marks) (b)Whatissuperfinishing?Howitdiffersfromlappingandhoning? (4 Marks) (c) What is burnishing? Where is it appiied? Write short notes on any FOUR of the following : i) Types of cutting tool materials ii) Gear hobbing iii) Specification of planer machine" iv) Work holding devices in case of shaper 14Yg=2O lYlarks) (v) Surface grinders. *****
21. 21. T (Pages:2) ME-403 FOURTH SEMESTER B.E. (MECHANICAL ENGINEERING) DEGREE EXAMINATION- MARCH 2OO1 MANI,]FACTURING PROCESS_U Time : Three Hours Maximum: 100 Marks Answer anY frte full questions Sketch neat figures whereuer necessdry . (l marks) 1. (a) Briefly describe orthogonal and oblique cutting Name the various chip formed during metal cutting Why discontinuous chiPs G) preferred ? (7 marks) (6 marks) (c) Explain Flank wear and crater wear 2. @) Name diffierent types of tool materials What are the characteristics of ideai tooi materials ? (7 maks) (b) why cutting fluids are applied to tool and workpiece during metal cutting ? (6 marks) (7 marks) (c) Explain different types of cutting fluids. (6 marks) 3. (a) How lathes are classified ? (8 marks) (b) Describe principal parts of a production lathe with a neat sketch. (c) Write any six differences between a Capstan and Turret and an Engine lathe (6 marks) i* (7 rnarks) 4. (a) Sketch and describe in brief a radial drilling machine (7 marks) (b) With sketches, explain any seuen drilling operations (c) Draw a simple twist drill with tapered shank and write its nomenclature. (6 marks) (7 marks) 5. (a) Describe the quick-return mechanism in shaper (7 marks) (b) with neat sketch, explain principal parts of a slotting machine. (c) Find the cutting speed of the shaper when the stroke length is 180 mm., number of double strokes per minute is 30 and the ratio of return time to cutting time is2:3. (6 marks) 6. (a) write different types of planer and explain standard double housing planer (10 marks) ft) What are the common operations performed using planer, explain planning vertical surfaces ? (6 marks) (c) Write (4 marks) any four differences between shaper and a planer Turn over
22. 22. \$ Z MF.-403 t7. @) Write different typs of milling machines 4 marks) (b) Draw neat sketch of plain milling cutter and write elements of cutter 6 marks) (c) How the size of a milling machine is specified ? (2 marks) milling (8 marks) (d) Explain up milling and down8. Write short notes on any four of t};re following :- (a) Merchants circle diagram (b) Work holding devices in planer machine (c) Tool layout in Capstan and Turret lathes (d) TaYIors tool-life equation (e) Milling oPerations. (4x5=20marks)