PRODUCTION > METAL CUTTING Meee a ieieen huciustiewmanel™ Machining ae of fivishing by which jobs ave pstodeuced to desined . imension® “sunfan fulrsh by guadual Lumouing exes Moifeiiad (Heo pudumed blerk un har chips by oakly cing foal. [Types of Mochintng] , Pasir! (obLT Que) 7 — Chip foul uh dix ectio ciwlay’| chfp Flow at an on cult A i ees D) pe ji ‘pl + . ple og —> chip get colted un bpxral chip get flow in any dinecion - — Teof tye LUA Toof Life mate Only two Component ef force 7 4 no sal eonpce) Thee component of eee —> Susipace finish (poor) Goof Susiface finish —s Used in slotting , parting ete: used tn miltiog ; Dailltng ete fortHoGi0NAL culling | 1p plan to na oh thicknex. eal t 7 chip tickney : waft K > Rake Anale edt Vi cleaxeng Angle ; . Y > Leap Angle Pae wedge/ knife Angle > chip thickness (4c) fs gaucaley Hen uncut chip thickness (€) because of plastic Afoumedion (duct sheay Faulucce) 5 (d) = depth wt, for oxthogonal cutting > [=4] “ = width of uF 4 d le - eof nation of poke Suifact om seafesenct Plane « > Allow chip dixectioy + Tr poovide: Reeness( shesiprees) to cutting eae + > Reolact cutting Fouce Sequined to cheay metal > Tmpuowe Aut face fish > Reduce poussy con4vnpho-[Tool Creoméliuy | —> Machine Muyfenence system (ASA OR ANST ASA a d ( ) ment ‘a4 Atandand Axsoc.ation sidt culling edge. 1 end “Relig Puppendiewlay to hase Bork Yo bas Pepper to base, Pasjollel to width (clin | {ctig es y Pastallel id Aength (whting plane) Tool geomet + Numesifead Method of tool dentifreation * Xp x. Ye - ‘Ye c Cs Ab Nose = Radius Back Rake Side End oe vol cutog “ede chhg Angle Rake Relig Heli edge edge [FoR ASA] = Side aig edge —> Tt hat No Lnfloence on cutting fort and peevenh dnbey feHence * Lange Valu con induce chatley a4 Hhyust fosuce Snceaset (Fe) - — Nose Radivs > cay vali o Hoot ae ‘i+ unareose Ataength of Toot by ued aheuss concentration. «Ty dnurease Hoo “ye and puovide belley susfowe finish + As nose Hadiug unweace, cutting fotuce uhcyease, and henee, pout (cutting) cnuyease * # [ORTHOGONAL RAKE SYSTEM (oRs)] - Nose.” L of Y yi Ce A R+ Radius y + { PTT ide. énd SF Hi inclination onbagorth le ae Reli 4 ney ee eee Angle- Ang iq 4 sch Angle[sheas, Stsiain Hale ] Rai of Sheay Stvain Tt Le not Sheay ctrain df iy Hate of sheay shady fee. flow 9, + Ve > hea Velocity Yedy = Ns | re ; dt ts ts themes 94 pesionany — Thickness of hea Zone, can be okey a6 (10%) of heat plans but not mos Han 95 Manon [Oistudbution of Heat un metal cutting oO Parimasiy dlyfostenakion Zone - — Region Oe dpeuition beak: — 70-807. of total Heat) cnengy consumed @ _ Secondasry deqoumetion zone - Ascound 20-957. eneygy consumed +o oveycome drag of diip- ® Textiouy deforim ation xone - Woxk too] contact zone, heat geneuale dus to busnihing Action. [Types y chip ] ( Continous chip - : condition Jo continous chip are - Auckile maleulaf, High speed , Lou feed and depth of ct, High ake angle - : ; Tp chip hit finished sunfact, uf nag) pei cf @_— Ausconkinous chip - Conditions > Buitlle matuiial Low speed , High feat and depth cub , Low back Hake angle. Slraht plastic deformation product by small advance edge lo tp deads to cnack d ou otion cualk hoopagal awd Susy pace and small Agmey of chip gek detached - @ chip with build up edge ( 8UE) oyouable condition — Ductile mateuiap , Low speed, high Jeed and depth af cut + Tq machining duct malaria} vith Long chip tof Contact dang, dofeg Ateus and Aemp- clevilop uy secondasyy dod” zone.— Axeq of shea plane (As) = _bxt whut 2 Ley 4 Pl Sing Sing my oee — Sheay Fouce on sheay plane (EZ) = T.XAs = Gexbt : ex! [Meuchant fouce clycle ing van] ine = Fattdtion Fouce = Foe Normal to F = culting fosue = Thsust pouee Sheasy fore Fosus Normal to Fz = Resultant Foun nou [Schematic Didgrar | x= B = Faichon Ar, Now, [Te get Foseces Value from MD] = Sheay Angle — F=RSinp N= ROP y [peter (H)] => k= R Ws(p-A) — = Rsin(BX) te ¥ 5 R= ROS(bIpX) = RAD LPtP™) “Hil — [Limitation of Med] nad cuttin [rnp=5 =H] i) Valid only for ostthoge Me ds «) Ralio rel 5 gis apparent coptictenk af eviction [ special cases | i) If vals of (K=O oR FLE) they FN, FR fours Redangle poem ond ReN vy Tp value of (20 94 Hel) ” an vos squauie and alt agit equal .[een 4 too] Weay” (i) Aippesion = Atoms on méaltic ceysta’ move High ae nae oe to Low concuitvation- In that tes 1m oof meiléiial to chip maleyial ol pou cana Ma weaken suspact streuitune and Leads to pectluse: (li) Adhesion Weay - Due to exceaively High kept af “too{ chip dnteyface , metallic, bond fale place af contac aa un foam of spot weld » When chip arene malt asl pstoken and casucied away by chips ° il) Lai uteay - Tp Ont of the sus fact confauy very hare pasticle then paxdich. dusing biding may sisted material: (iy) hen Weaxy - Foumetion our and notes af Hake Ay face foumed abmactue Onde With YF * [ Types of tool wea | Flank Weay - ” ; 0 Flank wees! oct on wv veld pace ond Afde veig engl atuidbuled dy fo LWhbin ig of Tool causig adhestuc ond Abuoxiue ” High Temp. which 44 => TP y mou af cone one notches + = Happens Ut duu to wok bade > Math season > Absuasion 0 ‘Adh ecto + pp Low speed, dt 4 peudomfnant + T+ disiedly oppo component dimension pscod ce > Te hae 3 gE. psimasty , gecood a ae dey Hasey a Aeclonatin ' Wea € i Rate WEAR Il i . localized Weay teady Weal " pair | = O- 6mm steady We aijure ° Unt eegiog agin Uniform Wear I = 0-3mm (AV)