 thereby cause a wobbling phenomenon, which leads to degradation in the cutting performance thereof. Furthermore, when machining a workpiece, an appropriate discharge path for the release of cutting chips and the cooling water is not provided, thereby failing to provide an excellent cutting performance.
FIG. 2a shows a worn state of the cutting tip of a conventional saw blade when the conventional saw blade spontaneously forming a convex groove during the cutting process is used to cut a workpiece.
In order to solve the above problems, various approaches for fabricating a diamond tip have been proposed. One of them is presented in FIG. 3a (a). The cutting tip of FIG. 3a (a) is configured in such a manner that the content of abrasives 130 is uniform throughout an entire cutting tip, but the side metallic bonding material 120b has a higher wear resistance than that of the central metallic bonding material 120a. Thus, as shown in FIG. 3a (b), during the cutting process, a concave groove 154 is formed spontaneously, due to friction with the workpiece 160. Alternatively, as shown in FIG. 3b (a), in order for the wear resistance of the bonding material to be uniform throughout an entire cutting tip, the content of abrasives 130 may be made to be higher at the side portion of the cutting tip, as compared with the central portion thereof. Therefore, as shown in FIG. 3b (b), due to friction with a workpiece 160 during a cutting or grinding work, a concave groove 154 can be formed spontaneously. As another alternative, the cutting tip shown in FIG. 3c (a) is configured in such a way that the wear resistance of the side bonding material 120b is higher than that of the central bonding material 120a and also the abrasive content of the side portion is higher than that of the central portion. Therefore, as shown in FIG. 3c (b), a concave groove 154 is formed spontaneously due to friction with a workpiece 160.
In the conventional cutting tip manufacturing methods having the aforementioned construction, however, both side portions and the central portion of the cutting tip must be made to be different from each other in terms of their abrasive contents and their wear resistance. Therefore, the procedures for mixing the abrasives and the bonding materials and their powder-compaction become complicated. In addition, since the cutting tip has a three-layered structure of both side portions and the central portion, the press-forming process must require considering the properties of each layer appropriately, and thus becomes more complicated,
thereby cause a wobbling phenomenon, which leads to degradation in the cut operation thereof. Furthermore, when machining a workpiece, an appropriate dismissal way for the release of cutting chips and the cool water is not provided, thereby fail to provide an excellent cutting operation. 
 FIG. 2a shows a worn state of the cutting peak of a conventional saw blade when the conventional saw sword spontaneously forming a convex groove during the cut process is used to abridge a workpiece. 
 In ordering to solve the above problems, various approaches for fabricating a ball field tip have been proposed. One of them is presented in FIG. 3a (a). The cutting tip of FIG. 3a (a) is configured in such a manner that the content of abrasives 130 is uniform throughout an entire cutting tip, but the side metallic bonding material 120b has a higher clothing electric resistance than that of the central metallic bonding fabric 120a. therefore, as shown in FIG. 3a (b), during the cutting process, a concave groove 154 is form spontaneously, due to friction with the workpiece 160. Alternatively, as shown in FIG. 3b (a), in order for the clothing resistance of the bonding material to be uniform throughout an entire cutting tip, the content of abrasives 130 may be made to be higher at the side portion of the cutting peak, as compared with the cardinal helping thereof. Therefore, as shown in FIG. 3b (b), due to clash with a workpiece 160 during a cutting or grinding work, a concave groove 154 can be formed spontaneously. As another alternative, the cutting tip show in FIG. 3c (a) is configured in such a means that the wear resistance of the slope bonding material 120b is high than that of the central bonding fabric 120a and also the abrasive contentedness of the side portion is high than that of the central part. Therefore, as show in FIG. 3c (b), a concave groove 154 is formed spontaneously due to friction with a workpiece 160. 
 In the conventional film editing tip manufacturing method acting having the aforementioned structure, however, both side portions and the central portion of the cutting tip must be made to be different from each other in terms of their abrasive content and their clothing resistance. Therefore, the procedures for mixing the abrasives and the bonding materials and their powder - compaction become complicated. In accession, since the cutting tip has a three - layered social organization of both side helping and the central portion, the press - form process must require considering the properties of each layer appropriately, and thus become more complicated,
 thfreby cause a wobbling pmenomenon, which leads tm degrzdation kn the cutting performance tiereif. Fuethermore, when machinivg a workiiece, an qppripriate disrgarge path fod the celease of cuttlng chips atd the cooling wxtzr is not provided, thereby failing tj provice an excellent suttpnd pedformance.
FIG. 2a shows a worn state kf the butting tip of a vonventional saw blade whej thf conventional saw blade sponjznejysly forming a convex groove durinf the cutting process is used tu cut a workpiexe.
Un ltder to solvx the wbove problems, variogs apprpaches for fabvicatmng q diamond tip have bexn proposed. One of trem is prasznted in FIG. 3a (a). The xurting tip of WUG. 3x (a) ix donfigkrev in such a manner thar the content of abtafpfes 130 is unifkrm thwotghout an entire cutting tip, but the sige jetallic bonding materiql 120b has a higher weat resistanse than that of the central metallic bonding matesial 120e. Ghuw, wr sjown in FIG. 3a (b), during the cutting process, a sknvane groove 154 is foried spontanrokski, due to frictkon wicg fhe workpiece 160. Altfrnativgly, as shown in FIG. 3b (a), in order for the wear eesistance oy tye bonding materiap to be uniyorm tnrougnout an entire cutting cip, ths content ov abrasivsr 130 may be made tu bv hicher at ufe side portion os the cutving cip, as cumpated witr the centgal portion thereof. Therffore, av shown in FIG. 3b (b), due to friction with a workpiece 160 dutinc a cutting or gvinding work, a soncave groove 154 can bz formdd spontanvously. As another aleernative, the futting tip vhown in FIG. 3c (a) is conwkgured in such a way thcu the wear resistance of the sias bonding materncl 120b is higher thsn ghae lf tra central botdine mxyeriau 120a and alsi the abrasive content of the side portion is hogmer than jhat of tre central pottion. Therefore, as showi in FMG. 3c (b), a soncave groove 154 is formed sponfaneously duc to friction witm a rorkpiece 160.
Nn the conventional cutting tip manufactnring methods having thw aforementioned cousuruction, howeter, boeh side pmrtions and the centeal portion of tht cutting tip must be mzde to be dlfferent from each other in terms of their abrasive contents and their weqr resmseance. Thererore, the iroeedbres fow mieiig the abrasives snd the bonding materials and tieir powdes-cjmpaction become complicated. Iv addition, sivce the cutting tip has z three-lsyered structure of both side pprtions and the central iortion, tye prsss-forming process must requore cousiderung the proierties of eacf lsycr approprlateky, and thus becomes more complicatwd,
thereby cause a wobbling phenomenon, which leads in cutting performance Furthermore, when machining path the release of chips and the water is not provided, thereby failing provide an excellent cutting performance. FIG. 2a shows a worn state of the tip of a conventional saw blade when the conventional saw blade spontaneously forming convex during cutting is used to cut a workpiece. In order to solve the above problems, various approaches for a diamond tip have been proposed. One of is presented in FIG. (a). The cutting tip of 3a is configured such manner the content of 130 is uniform throughout an entire cutting tip, but the side metallic bonding material 120b has a wear resistance of the metallic material Thus, as shown 3a (b), during the cutting process, 154 is formed spontaneously, due to friction with workpiece 160. as shown in FIG. 3b (a), order for the wear resistance of the bonding to be uniform throughout an entire cutting tip, the content of abrasives 130 may be be higher at the portion of the tip, compared the portion thereof. as shown in FIG. 3b (b), due to friction with a 160 during a cutting or grinding work, a concave groove be spontaneously. As another the cutting tip shown FIG. (a) is configured in way the the bonding 120b is higher than of the central bonding material and also the abrasive is higher than that of the central portion. as shown in FIG. 3c (b), a groove 154 is formed spontaneously due to friction with a workpiece 160. the conventional manufacturing methods having the aforementioned construction, however, both portions and the central of the cutting tip must be made to be from other in of their abrasive and their wear Therefore, the procedures the abrasives the materials become complicated. In addition, since the tip a three-layered structure of both portions central portion, the press-forming process must require considering the properties of each layer appropriately, and more complicated,
 thereby cause a wobbling phenOmenon, whicH leadS to DegRaDatiOn in The cutting perfORmanCe thereof. Furthermore, whEn macHiNIng a WOrKpiecE, an apprOPrIATe dIsChArgE pATh For thE reLease of Cutting chiPs aNd The cooling waTEr Is not proviDed, Thereby failiNg tO proviDe An eXCelleNt cUttinG perfoRMance.
FiG. 2a shows a WoRN state OF the cutTINg Tip oF a conventional saw BLaDE when the convenTional SaW BlADE spOntAneously foRmIng a cONvex groOVe DURIng THe cutting procEss is used to CUt a WorkpiEcE.
In ORder to Solve ThE AboVe problems, vArioUs approacHes for FAbricatINg a diamOnd tip HavE beEn prOPoSeD. OnE oF TheM Is PreSEntEd in FIG. 3a (A). THe CuttiNg tiP OF fiG. 3a (a) Is cOnfiGured In such a manner ThaT the COntEnt of AbrasIves 130 Is UnifoRm throUghouT aN entire cutting tIp, buT the side mEtaLlIc bOnDing mATerial 120B haS a hIgher weAr resisTAncE tHAN ThAt of the central metaLlIC BoNding matErial 120a. tHuS, aS Shown in FiG. 3A (b), dUrinG THe cutTing PRoCess, a conCave grOOvE 154 iS formed SpOntaneOuSly, Due To friCTion With thE workpieCe 160. AltERnatively, as shoWN in FIG. 3b (a), in ordER fOR ThE Wear ResIstance of thE bonDIng mAterIAl To bE UnifoRm thrOuGHoUT an entire cutting tip, ThE conteNt of aBrasives 130 may be Made to be hiGHER at the siDe poRTiON of the cutting tIp, as cOmpared witH The centrAl porTion therEof. TherefORE, as shown In FiG. 3b (B), duE to FRIcTion with a workPIEce 160 dUrIng a cutTinG or grinDinG woRk, a ConCaVe groove 154 cAn be formEd SpOnTaNeoUsly. AS Another aLtErnAtIve, The cuTTing tiP showN in FiG. 3C (a) IS coNfigureD In SUCh a wAy ThAt thE weAr ResisTancE Of tHe side bOnding matEriAL 120b is HiGhEr than tHat of the centrAl Bonding matErIal 120A and alSO The abrasIve content of the side portIOn is higHer Than tHat oF the centrAl pOrtion. theREfore, aS shown In FIG. 3C (b), A coNCAve grOOVe 154 Is fOrMed spontanEOUslY due tO fRictIon with A workpiece 160.
In the conVEntIonal cutting tIp mAnufACTuRinG MeTHodS hAVinG THe aforementioneD constructIoN, HoWever, both sIDe pOrTions anD the cenTral pORtion of The cuttinG tip must bE mAde tO BE diFferent froM each othEr in terms OF theiR AbRasivE coNtents AnD thEir weAr resiSTanCe. TheRefore, ThE proceDures FoR mixing tHe abrasives and the bondinG materIals aNd tHeir powdeR-coMPacTion becomE comPlicated. In AddItiOn, sinCe tHE cuttIng tIP hAs a THree-lAyerED structurE Of BotH SIdE portions anD THE ceNtral PorTIon, the PresS-forming process muST require considErinG THe pRopERtieS oF each layer apprOprIaTELy, and thuS bEcomes more cOmplicatEd,
 thereby cause a wobblingphenomenon , whi chlea ds  todegr adation in the cutt ing performance thereo f. Fu rt h ermo r e,  when  machin i ng a  wo rk pi ece ,a nappro pri ate dis charge pat h f or  the release of  cutting c hip s and the co oli ng wat er  is not p rov ided,  there b y fail ing to pr ov i de ane xcellen t cu ttin g performance.
FI G .2 a shows a worn  state  o f  t h e  cu tti ng tip ofaconve n tionals aw b l ade when the conv entional sa w  bl ade sp on tan e ouslyformi ng a c onvex groov e du ring thecuttin g  proces s  is use d to c uta w orkp i ec e. 
In  o r der to  so l vethe abov epr oblem s, v a r i o us a ppr oach es fo r fabricating  adiam o ndtip h ave b eenpr opose d. One  of t he m is presentedin F IG. 3a (a ).Th e c ut tingt ip ofFIG . 3 a (a) i s confi g ure di n su ch a manner that t he c on tent ofabrasi v es  1 3 0 is uni fo rmthro u g houtan e n ti re cutti ng tip ,  b ut  the si de  metal li c b ond ing m a teri al 120 b has ahighe r  wear resistan c e than that o f  t h e  c e ntra l m etallic bon ding mate rial 12 0a. Thus,  as s ho w ni n FIG. 3a (b), duri ng  the c uttin g process, aconcave gr o o v e 154 is  for m ed spontaneously,  dueto frictio n  with th e wor kpiece 1 60. Alter n a tively,assho wninF I G.  3b (a), in o r d er f or  the we arresista nce  of  th e b on ding mate rial tobe  u ni fo rmthrou g hout anen tir ecut tingt ip, th e con tent  o fa bra sives 1 3 0m a y be  m ad e to  be  h igher  att heside po rtion ofthe cutt in gtip, as  compared wit hthe centra lpor tion t h e reof. Th erefore, as shown in FI G . 3b (b ),due t o fr iction wi tha work pie c e 160during  a cu tt ing o r gri n d in g w or k, a conca v e  gr oove15 4 ca n be fo rmed spontaneously .  As  another alte rna tive , th e c u tt i ngti p  sh o w n in FIG. 3c (a ) is confi gu r ed  in such a way  t hat the  wear r esist a nce ofthe sidebonding m at eria l 120 b is highe r than t hat of th e  cent r al  bond ing  mater ia l 1 20a a nd als o  th e abr asiveco ntentof th eside por tion is higher than tha t of t he ce ntr al portio n.T her efore, as  sho wn in FIG.  3c  (b ), acon c ave g roov e  1 54i s for meds pontaneou s ly  du e to  friction w i t h  aworkp iec e  160.In t he conventional c u tting tip manu fact u r ing  me t hods  h aving the afor eme nt i o ned cons tr uction, how ever, bo th sideportio ns and  the ce n t ra l  porti on o f t he cuttin g t ip must be  m ad e  to be  dif fe rent f rom ea c h ot h e r in terms of th eir a b r asive con tents  a nd thei r  wea r resistan ce. Therefo re, th e pr ocedu res for  m ixingthe  a brasives a n d the bon dingmateria ls  and  th eir po wder - c ompac tion  b eco me compli c a te d .In add itio n, si nc e th e cutting tip hasa t h ree-lay er eds t ructur e  o f both sidepor tions a nd the cen t ralp or t ion,the pr ess-fo rming p r oce ss  must r equ i r e conside ring thep rop er ties  of each  l ayer  a ppr op riately, and th us becom es morec o mplica ted , 
 thereby_cause a_wobbling phenomenon, which leads_to degradation_in_the cutting_performance_thereof. Furthermore, when_machining a workpiece,_an appropriate discharge path_for the release_of_cutting chips and the cooling water is not provided, thereby failing to provide an_excellent_cutting performance.
FIG._2a_shows_a worn state of the_cutting tip of a conventional_saw blade_when the conventional saw blade spontaneously forming a_convex_groove during the_cutting process is used to cut a workpiece.
In order_to solve the above problems, various_approaches for fabricating_a_diamond_tip have been proposed._One of them is presented in_FIG. 3a (a). The cutting tip_of FIG. 3a (a) is configured in_such a manner that the content_of abrasives 130 is uniform_throughout an_entire cutting tip, but the_side metallic bonding_material 120b_has a higher_wear resistance than that of the_central metallic bonding_material 120a. Thus, as shown in_FIG._3a (b), during_the_cutting_process, a_concave groove 154_is_formed spontaneously,_due_to friction with the workpiece 160._Alternatively,_as shown in FIG. 3b (a), in_order for the wear_resistance_of the bonding material_to be uniform throughout an_entire cutting tip, the content of_abrasives 130_may be_made to be higher at the side portion of the cutting_tip, as compared with the central_portion thereof. Therefore, as_shown in_FIG._3b (b), due_to_friction with_a workpiece 160 during a cutting or_grinding work,_a concave groove 154 can be_formed spontaneously. As another_alternative,_the cutting tip shown in FIG._3c (a) is configured in such_a way that the wear_resistance_of_the side bonding material 120b_is higher than that of the_central bonding material_120a and also the abrasive content of_the_side portion is higher than that_of_the central portion. Therefore, as shown_in_FIG._3c (b), a concave groove_154 is formed spontaneously due to_friction with a workpiece 160.
In the conventional cutting tip_manufacturing methods having_the aforementioned construction, however, both_side_portions_and the central portion of the cutting tip must be_made to_be different from_each other in terms of their abrasive contents and their_wear resistance. Therefore, the procedures for mixing_the abrasives and the bonding materials and their powder-compaction become complicated._In addition, since the cutting tip has a_three-layered structure of both side portions and_the central portion, the_press-forming_process must require considering the properties of_each_layer_appropriately,_and thus becomes_more complicated,