flPI'lCI FICATIiiM n^EcisioN y\iii,()Y TKCHNICAL FIFILD [0(10 1 ] The present invent.ion re.lalo/i in a prin;; I a i on alloy, in p.irt. icniar to a precision alioy foi' d le-iM/rl: iiui, a priiclaion alloy die-cast componcsni. luilini llm Haine, and a mol liod ol itianufacturing a preciHion .illny lui diu-Miauting, BACKGROUND ART [()()();' I Among coniponent.s used for niiiiiiiiun I I'trt.l on jnut i;iiiniiinl:,s, enolmniin cuiinponentM for outdoor wnn, ^Hiil lili|li f r:nr|niMii:!y chiMiit InstruinentH containing vnlnlnd I'lrmiil bofirdH inumilficj with electronic circuit nlmnHnlfi am generally cord; Li|iireil aa functional devicea liavlng melal oaHUM ox: encl.oHed In metal covers, becauwe nf nomi ol e I e(.d; ivoindignetio shielding. Also fniiii Ilia vl.iiwpoinl of cue I Dii) Ion real (Stance, JlS-apeci f I nd Ah''i, a kind ol alumhiniii alloy die-naMt material, liri/i IH.BII UMHII. Mol.liod (,)f niainrCacturing Llm abovn i:|ehi!i llieHod In iMldui Doiiument 4 lolaliiM l;o an alloy material iinnd Im low I nnri'ioi al lire bia^'.lng II Her ruater'ial and so loiMi, In CHIIII.IHI, alloys lur dio canting weed be strictly 1 hulled In i ho rat. lo liy niiWJ.M ol coiu^t I tutlvo element, in 01 dm lo aal I (i I y lioril irridlallon rdnrracte rJ at lea, weight lodih'l |,oii .-inii c,IsI,rIb 11 11y ;iuch c\a c\r;af t. jl'iilisnt Document 1] Japanenn Inild Open l'.rl:t)nt Pilbi I cat ion No. UG-A91V12 jL'atent Document 2] Japan(3ae ha hi Optni Patoni Piilillcation No. H9-272932 [Patent Document 3] Japaneae bald 0|)i:ni Patent Publication No. 2001-288519 [Pai.ent Document 4] Japaneae ha I d Of:)oii I'.dent Pub I I cat ion No. Iih~2!i'iH22 DinfrhOSUREl OF I'ilM INVHltli'lOII [00091 However., the con voiitd ona I I, oidnn 111 igion doai'i rbi-ui In thu I locumentM in the ,il>ove ,'rt:l 1 1 hdVn inDrnn IDI: inipi I iveitierit a,s desci'l,l:ied below. The z-im:'. alJ.oy l:iir die-caMl hn;] \i< <\ ni'ii or I'-i I havlmi loiKi been uscid by vlr.tiie ot ita 1 iil rlnn I i.^-;rM y eKi'.nlJonl: ca.'il iihil 1 ity, and has recently bcuui r:lii\M» I i^ptul maliily Itu tlio piirpoae of Improving the creep c;hi< i .lotm I at IOM, which am d;Uiadvant:ages contradictory \n ciruil nbi I I I y. However, there has been known no /, I ti(; alloy whicli la devi!lof)ed from the viewpoint of ■illowlini ineclni-i liaMling, donplte of their knowir excellent (MaLab I I 11 y aji a ,'iol.l.d molcil. In other words, there hran been known no zinc alloy ca|)(ibl(^ of enanring geometrical af:!oni:.uiy eiiu I vrilenl, (.o thai: ,)l.l a:l nable by machining. [00 1,0 I The ))r'efii(int Invention wa.s i'.onou I vnd allii:!' oonal dtjr'1 ng the above-deacrJ bed .sblaiatlon. II In lliHCelnio aw ob)t"'t oi lilt) f)i:eBent invention to provldn a (iieclnlon iH loy c,i|:i.il:i le of extremely reducing the driill of: prfiducdn as ooiuiiaied with those made of the i'i:invnnl I oriitl rtl ntn I rmm I a I l.oyn for d l.e~caatl ng, and rechtoeil hi I he M|)H(:|f|(; giavlly wiitle keeping intrinsic advtnd a'leB o| /,ini:. 100 1 I I /\i !co i:diiK( to I he present Invnnl Inn, lliiiin In piovlded a pcoi'lMion (HlLc^y for die-castlnci inml .i hring .i I niii Inuiii, i sMli:'i:in and zinc, wiierein on llio biiMhi iif I he iiviHriM mass, the I'onfent of aiumlnnm is 40'i'. by iiiaMii ur I[|I:HH ami 'I'lV. by m.:(;:i;:i oi: less, and lihw i:;ontent of Mllli'nn in ?.% by mass or moM'' ,:iri by masH ra: limn ol ).u:ippej , ii.OIVt by iiiaSM or more and 0.1% by mass or lea/i o( maqne.'rhiiii, and the balance of zinc and inevltal) I •:! I tiipn r i t bui. [00 1 i] AcoordJtiq to tlie present j.nvtini I on, i:|Mr):n in fnovlded si: M I- also a precisi.on alloy di e - (::i:in(. i!oin):)onoid ciompostMl ol: llie precision alloy for die-casl:inq id: I ho irroHenl: invent I.on. [DOM] According to the present Inveiil Inn, I here I fi provided sM M rii.so a method oi mannf ad 111 i ni:| ,1 iirec IfiiDM rriloy tor d I o ■ c.iHl; I ng, I.he melliod inc:lnciea: ubliilniiiq a molten melal con I: .11 n I nq alninl niim, 7, Inc, sllir'on, r'oppi:,)i:, .ind m/;nni"Mlnm; and obl.ilnincj a prdudsion alloy ho- dl"-i:MMl I ni.i «',nnl .1 i ni nq, on I 111' ba.'jis of l:li(,.! overall mass, ''IDV, by imaMM or inoio ,uid 4''V, by iiia,'3s or less ol alnniirn:im, MOV, by iiian.'i or moi;o and !)7.H'iV. liy riias.s or les.s of z.i.nc, ,"Y, hy III,I/IM ni more nnii B% by niiiiM III '.lenm of BllLcon, 0. J 7, liy IILIMM nr iiiolo aint ().2'A l:iy ni.iii,'i nr lesa of copper, O.OIV, liy III,IHM n:i iiinio find 0. ] 7, by iiMdM (ir JoMt-i of niaqnesium, i(| hiitHvl may contri.ln 0.1% by KIIIMH HI in.jfu and (),;'% l)y miiMM or loss of copf)er, and 0.0 h^ liy iiiiiio-i m' iiiuio rind 0.1% by iiiasM or les;? oJ: magnesium. [00 h)] in till a embodiment, the lower J I ml I; of ilie zinc: conl;(M)t is preferably 30% by maa.s, morn prHliuraiiJy 3!')% by maaa, and still more preferably ^H'h \>y mas/i. The upper' liiiill:. of the zinc content is preierably !)0% by maaa, more p.t') I israbiy 5"/. 89% by iiiaaa, still nnj.to pi tslot titi l.y •i7% loy maBM, and further mo,i o preferably 'aO% by ma,':}(.i. Alterncvfively, Mie zinc conhinl may bo t\\o brilanLin oj tlid alloy composed i)t aluminum, Mil.ii;ori, zinc, and iiiov Liable Inipuritioa. ,'il:ILl .rl I o i:ii,i M vel y, 1;h<:' ■/. liic colli I'nl: may be the liri I .mct;; of l;hii .illoy i ;ompoi:i(>(| nj: aliniitnura, silicon, rJrn', chopper, nuirjiiiiM I itm, ,iiif| JIHJV] I. rih I. o imp 1.11 i. ties . [Oit'ii] By containinq I ho above-da.MO) I IHH| I atujoH ol z\\^c, the alloy may be improved In the pruol/ijon nasi dli t I ty. hy v:l,i tiie of th(^ effect of precision na/U ,il» III I y, l;lu:) sooondaiy processing may no moro bo lUH'iuiH.ny, cjiid lh:t met,I 13, and contain 2 lo 8% by mana ni alLli'im, arbitrary compiiait.ion~;!(,] The avoidalile by addlini Ml. l''oi IIIIH it.iaMon, till' Al I'lititont in adJuHted lartjtn: than I lial In I he cunveid loii.i.l. zinc <:i.lloys. [fio:'ll I Tlio z.inc: cord ont is preferably adlUMled lo /)() lo bl% by iiiaiiM, and inoj e pro.[erably to '111 In MlV, by [iia.'iin, on IIIH l.iasl.n ol l.ht^ overaLI weight of alloy. [DO;:') I The jrrecl fiiion alloy of tdie |tii:iHeid liiweirl Ion may fill I he c i.^nvta;l.n inevitable impu r. I I I tsM . Tim I nev 1.1 al.il o impinitioB herein moan substances nn I id enti.onally I conl:.)lnod in the nial:t3rial in the procoMff o\ maim factnrJ ng, and may be exemplified by iron, leacl, cadmium, t:in and ,so fori li. [00 :)()] (Rx.iimple A2) > Alloy 2 contaJnlng alumim.im, zliic, aillonn, ruippei' and magnesium was prepared. Al.lny cuinpi ineid; M i.d: thl.fi Example are HIIOWU In Table 1. 13 [00-11 ] 'Yhe pre(:::l5rion ri.l loy of: tl~iH pi eiHtud invout I on iii.iy further' contciin othoc nompoH.I.I, I on .irllmd l.n<| nl,oinont(H) It nei'I'fi3.ii:y. An the ij'oiiipoai I: Ion-ad 1 IIBI linj e I i)iii()n t. (M ) , rt t le.ud either of copper and macjnnM hiKi, hd: nH.miplo, may he cold ill fieri. [oo:i;'i C'opper (Cu) fun(d;ions to .linpiovii llio iiun.ih I nab I I I ty, and iiiciy |:).r'ef(.«rab.ly be adjusted t.o o In ii,'iVi liy maoH rulrdtve to t.he we:i.c)hl. of z.l.nc, In t.jiii pKm d fi l.on aJloy of tho |iroBont: :Lnvent:ion. In the piaiiihilon allriy rd 1 lui pioi'iiiid: i.nvention, the copper coidaird may pni f:o irild y lie 0.1 lo 0.2% ])y mass, and more pretniribly ),K.I O.I to O.lTi by iii.u'KM I'fitative to the overall wolij'il ' d' alloy. Tofi small ooppior corrtent may fail in lUih loving tin 11 Ir'hint lirvoln lit Idu-} above-describod olnrai il or! at: 11 ;M, on Mio ollior hriiiil, too large oonterd: may dni|i,|di:i I ho llnldlly. [01) ( 11 M.KiiKiH.i um (Mg) funct;Lons l.o pinvnnl. I id oi orysl at 11 ne coriofili)n whlr;h J.a believed to oi'i!iii iiinie I rogiioiil 1 y In A I 1'oiita I n lag zinc al.loys. In tho pioolatiiii (iMoy o(: I he I'liih'iont Invention, tho magneainiii I'MHIOUI la pro rniritil y 0.01 111 0.1'A tiy maaa, and more p i id o iiib I >/ O.dl, ID O.OV't'i l)y masM liiiMod oY\ tho ovoiali weigtil nl a I ho/. 'I'l.in amirll M(] I I !i I nli;int may tall :l n achieving anllli'lniil IIO/HIM ol' I ho al H ivi r-ijiMic r.it)0 l:o i'rA by iiiaMH, reJatlve to the maiiM uj /\ I . |mi4(t| In the preciHion alloy ol: I ho pioiiMUl .1 iivtnit, I mi, as doner ilHixl in tlie above, the Al (Joiil otil \ m pioto i: lUd y 40 to 4.'iV, by inaBS, and more preferably 4)! io /\*'jl by inaMM, jiased, on the overall masa of alloy. [004 I I 'I'ho zinc content is prefeidltly I'l Io 'iH'/, by niciaH, and moio preferably 48 to 50% by niawH, birinnd on I; ho iiv/oialJ raa/ni of alloy. Altornat.l vely, I; he ■/, Inc contoiil may bo the bal.ince of the alloy which contaliin I ho abovn-dofioil bed ranqes of alnmlnum and silicon, anil I imv itali to i mpiir I I; 1 ea . By containing i he above--dHai:f | boil i:arii)oH of '/,in(!, ihe alloy may be .Improvod In tiie preolajoii i'aal dblil y, l^y vii'liio of the eJ-fecl,, of procinlon OIIHI: til >! 1 II: y, I,ho secondisry proceaB;! jn) may no inoi e bn ii-ioi-aaary, rind I ho cofd may conaequent: I y l^e reduced. [004;: I 'I'lio prociaJori alloy of tins pit::iMitiil liivoni Ion may f u i: r hi'K r i::;onl:ain tiie Inevitable I iiipiii 1,1 li.a d'-'OO i:il:io(| In Lho 16 ahi ivi,', [(l(i/| r) (,:harac!t erist i.(\M required (or rilloyM I o i d I o-i;'aHl'I nr) iiiolndii (1) mechanliMl. strenqt.li and mm'li Liiah 1.1J l.y, (7.) ho,it r,:idJ.at.Lon characteristics, (\) I'loop I:O,H l.ni,fiiioe clia I .i(,'l.o I-l.st.l ca, (4) corrosion COM I MI oiiiinl a, tao I ho jmrpoao ol nal I M l:y i iKj t.heao roquiremenl: u ril Mm H(inu< 11 mo . Tho pioolnl.oii alloy of the present; Invoiil Inn riin wo I I Ijrilanced aiiioiiij I lio olia racvLer-.l at, ics reqri i nid Im nlinyn (oi dlo-oaf3l I iKi. 1.110'bl I (lilxaiiipio ]\2) Tho I'lx ample will explain an loioiiipbiry pio(!.lM:lon al. icy cold ril III ng aluminum, ailicon, coppor, m,ignoMlrim and /Inc. Tlie z.inc cont:enl:, in this exampio |ii o I oirjlily fal'la in tluii ranqrii from 35 to 57.09?. by iriaaa, .ind moro pre l:tarab.ly frnin 4n to 50Vi by maaa, baaed rm Tho lo/in'all iiiaMM of a.lloy, A11 o rnat:ively, l.lie '/Inc contenl iir'iy bri I ho b,il,incM id I lio alloy wliirdi i::ontaiiiH aluminum, allLr'nU, c:op|)or, iM.iqiioal iim, a n 11 L n e v i t ab I o i m[;)11 ,i ■ i I i, e s . 17 By contirlning I.ho abov(^-do,'-ii':i Ibed laviijoi) ot 7,1 no, I.lie a.I|oY may be improvod In the pr'fio I (lii iii i MMI at i LI ty, l.ho seooiidary prooesainfi may no more Im nootiiiMaiy, .nid I ho COM I may c;on.'ioquentl y be reriiic»,ii). [0(Mi,:| 'i 11e precia ion a 1.1 oy o t Idi I n I'lKaiiipi o 1111 1:11i;j i oo111: a I n11 cop|ior and magnesium. In addition lo I Im a liny compoiionl.a in Mxample Bl. [01)47] AM desorlbed In the above, the ooiihtinl i:):l or l)o i.iiiproved In the baJaru'M aiiMing idhii ..M'IO id fd I CM t i.'gi,i I 1 (;id Toe prti'ci ,s I nil alloys .ico d lo >'ai'it 1 iiij. In .1 18 p.n I li'nia.i case when a Cu and Mq ,iiii .idilinj, I hi* .ilxiVd-dfMiriU)i,M| (I.) mech.ini cal stjrontjl.h and iii.ndi I nal i1 I I, I y, (1) cj(.i(,'|i rot-tiatance ctiaracteristioH, .nid (l ) cni i OH 1 on rf-!M I Ml: aiii.:e rnay fnrldier be iinprovr^d. In |:i(;n I Icnlar, an coiiipnred with the conventional Al, allnyn Bmiji a« ADC.i, the piHC. I a l.oii alloy for die-casting may tut distal tied in a form, wlillii actiieving eqi.iJ.valent or irioii) OKI in | hanl (M t;u)p reMintance character I .'dies, iuipround in i;itl|iii nic'ciliaii I ca.l strtingl:h, ax^^i bei.ng well balanced l.fl A! Alloy 1'l.:i() I'l.tii i).\2'/ (i.(i;'ii |llll,llll|lll;i Al Alloy :i 'I'l.VO 111,71 o.nu;! ().(i:'7 |0()M I (IQxaiiiplo n3) Alloy li containing alnminniii, cmppnr, iii.igni)M,lmn and 3 I I, loon according to the compoa I I ional latlo HIIOWII In Tal:do 'A, and containing the ba.lanru!! (d: i.',inc ruid I iiuv I tal)le i in p n I ■ 11: i e H , w a s p ]: e p a r e d. [i)i)');.il ['Paid,e ;: I K,!(illll(l I II hi Al, l,ny Al Cu Ulli 1 1 fli. ind 1 1 /,11 mil t, 1 un 1 1:; on 11 1 % liy IIUIMM 'i |)_y riicifiH ,''',I'V III. IM t _liy iiii- M/l V, liy liuijl; 4li. 0(1 0, 1;' (1 . 0,' ti, nil |l(l 1 rllM'll 19 [ n I)' I 1) Tli'i iii«:u,:lirin;l.c,i I Ml, renrjl;!) .iiid i'iiMl,ibll.My nl: Alluy S wi'M! MiiiriMii rod. lUifmllH are sliown In 'r.iblo t. Thii lunwilo Ml loiigtli heroin W.IM inii.)(Uiind ODn Idirn 1 ni:| 111 ,M:M 'A2:'A2, .ami l.liij Iri.gh-l.enipiM «il III " I'loiipliK) w.iti mo.HfUiiod ooiii orni..l-n() i:o JIC Z227:i, Tlio h,i rdiioiiM w.m inociMiirod oon torinlni] l<,i V.lcke.i:a hriidiM'MM IOMI, i:i|itio I I I i«d |iy JI3 H77;:':.. (I10')4 I I Tliti Low-tempco'a lure brltl.l.n lr,n'Mii:o W.IH iiiori.'Ui I od a I :• 1: o I r| I. n q t o i. he. p r oo(s(.;] u r e a be 1 o w . Olio heat-insu,] at l.ng box (^Od iiiiiP'.'iiO IIIIIIK I SO mm) and two l.vLocikB of dry i.ce (100 mmxJOU iiiiiix|ii() min) wt^ro obtained, A I.O.MI. |)Lece of A.1 loy 3 (6 mmxd iiiiiixBIJ mm) WdM ftamlw.;! olieci 1 by l:he dry ice blocks, and allowod In dland hi llio lioal:--iriMii I at:l ng box togalhor with othot rb y I oe liloidifi tor ai;iprox Lmately one lioiir. In ttria iirooiiuiM, aluo n imll Lny jiq (tweezers) was oooled by allowlnq II to utatid In tlio samo heat-insulatincf l)ox. Next, I.lie l:o;it |i|.()co and tlio I dry Ice bLockB were atiparated In l.!n» ho.it-I niui I at, Ing lu>x, aii'l l:he test piece wan taken out iiHinri I tie l:wooi',orM. Tlie tefd: }■) Lece W<:IM attao.|iru:l to a predHl'»i.l.'iil I tied liioB.i I, h in n | n Cl-iai:|:.y impact, testoi fi|:.H(,:i ti ed by it III H777't. Tlio liiloiv,,il bel,woor) l:he taking-oi.it c:)t tlie l,i;w.il pi in,'!' EiDtii I,tie litial- 1 in.snl a I: i, ng box and the attachmoni I ri t In- l:ijMl;or wan appr ox ltiial:ely ,3 .seconds. AfI.et bt,:'llig aM.ai'liod, I lio Itj.Ml: pbioii w.is appl,ied witli impact nrd i i I I, traolunid. Tlio 20 lr:MM|l:li rif time l)atwneii tlie att ai:'|iiiii!iil. nnd MIM jirn'tuiii nt tlm l;<:)(jt ))Le(:io was approxiniatevl y b ;.\>uU}\\i\i.i. [DO'i'i] (''mill iri Kelt,Lve 111Xamp.I H 1 ) A commeu'clal] y-ava:llab.l.e AI'iM Wii;i uliI ,i I inid . 'I'lio nKichaii Leal sl;rengt,li and castab.l 1 I I. y wtnc muanni ed ai'.'i'on.i Ltu;) to the priKuKlurea s.im.ri.ai: in I limui In Mxrimp.le 03 RnMiiltn ai;e .shown in 'I'abie 3. [i)i)'in| ['r,i))li.' .i| Hi3i'h,iiiiiMi ' H; I I • 11111 11 I 'IIMI nil I I II y I'dO'i/ I Tl-HnHl ^ 11 Ml I lM|(||-)l (N/l[llll''| liow t HiiipH rrti lira be I 1.1.1 n rrdiit.ui ii_ 1,11 111 i:|lc-l:(iiMp(ii til.ni.e c;rH(i|ilni| ( c 'I' curve) IV, I .'I|.ii3c:!l (III i| I (ivl I y I <)/iiiii' I llMrdiio.sM IIIVI li.ra:|l |"1 " ■- ' KM,IIII|;I| . > II 1 AlIny 1 1 'III 11 II. II 11 01 1 , M |M|. ■ n 1 1^'' l|ll|l(l I ill 1 VI I''. IIMIII|I I II I AIM' I , ;'H0 ll .".11,0 1 :', 7 I 00 A/i .'iliown in Table 3, Alloy 'i /i|iii\vn, ,;ind llifcireby llirii Lai; lon(i MM I h'l IIMMIIIII may Im iiiipii ivod l.o a la:rg(i dorjreH^. [00(ill I (Kxami:lie A'>) In l.h;i.3 I'lxample, a method nl iu,\nu I atvln i .1 luj I l>o p:i:(!(:la:L(;)n alloy for dJe-casting o 1: Uiu pceMoiil InvniilLon w;l I I, \ni (;;xpl<3;.lned. The preciajon .ii I l.oy :t:or di n i lai-i I hi'i (d tlui pi.nnonl inviMition may be p:i:-e|:irMed by obl;ahi:lnM H inn,Men mnl.al. conlaining a.1,i;im.1 num, '/,;l.nc and all Icon, and aibl I: ra rl I y conlalning ccipper and magnea:l,um. I''ai; uxauiplii, 11 inay l'"' prupared In a form of; al.uminnm-/ii bl Icon binary alloy, or so-o,illtMl manlei alltiy, while iiB I nr| liinlled I ngiittl: Ino with oblno; me1:<,)ls In a cpi apili 1, t.e cimniblo, or i;i ll id riid: 1 vo | y Im propai'od Iry oi:)tainl,n(| .i mo.llan aiolril noid;alnlru| .ni el i^cli'oJ yl;ic zinc as a base and tloMlrnd (amnnnlH ol; Al, <'u and Mq iiK^llied l:herBwil:h into a furiii id baHo iiielal (or, maMiiir alloy), and by directly ailditu) Ml l;o I hii moil mi mo I; a I . [OIKil I Ai,^-r,'ord;l ng to l;hG method oi Ihin I'iKarii)) I o, l.lio rtiloy WiiM inionoM.siiri ly pro|;)ared by alLnwing an /, I ni'-oord;.!,! n i.ng, a hiiii I MUiii--Hil Icon binary alloy 1;o irmlr In a iiinii (d HO- calhnl iiiaMl:ei; alloy, in a grapii 11 i:i i' r ni d idn . [lion:,' I (M". plo Ab) 23 A IMIV-(:,IM1 TTi(!('lh'iii i sin CMiinjioiniii I li.iv/I in | .1 lil, ijh-,f I tH |iiiiiii !y 1:; I. i(;i.i.Ll: M.U'IIOH, iiuiiiii I TH'I 11 n;M I by IIM|III:| /Vllny M ill hlii.iiiipio Al. IM .11 hiMl ra1 ed in Kin. J. Thin In .ni oi'niiiplii o|; h j.cjh.-:l:roi|uoncy c:l-i:(:ni :ll 1 M iinpi ini:Hd , /nid lian 1 cjcniM: .1 I I y beeni in.iniiI aiM.iired by ahimlnuiii din 1',ntl. I mj. t'i,n:Moii/i (1 and I'' in llie drawiiujM riin pMMiiaiH I nd l.i :al .1 mi p(iird:n iiT: change in I,lie dirocl :ldii id |nnpaM'dlon (,d i-:d«:'i.'l lb' wave pi::opagal,| nq lhron<|li Mm Wti vei.jn I ijn i I ] n.'d 1: ,d:t?d as idici n()n-hatf,;}ied pnii IIHIM in Ihr* iroar ) olovai bin. Convenb I on<.i il.y, idm I'Miiipiini'id Wrui iiDimnl Inl.o an .:i| ipi IIX I iiia Led ,':ilia|)H by nast:iMg, and V'MH I Imn ninniiod wJlh a iieciessary i.evoi of diineiini niiri I .n irni liiny, I: ypl i;d l.i.y by Huiioving the drafi: on tlie sidn jacna ihHiciol: l::y (Milling oi' iM I cic:!: ti.c cilscharge machi.nlng, In nlhet wiitiis, Idio 5 conventional alloy for cJie-caat: i ng cdiild nnl (;)i:d: 1: I d ol: pi (icetlures for secondary processing, a Mar being oliLfrlned in ,1 Vot:m of casl:i,ng. [(nin'i] Now, th(! non-hai ched porl.iniiB In |i'T.Q. I (K) iii:o IIIOHI. ) ini(iorl;ant, waveguldos, having on the I oil side tliarfud apeitnres al Lowing I horetlirongli niilMaiiuti and en It of 1dio eioctric: wavo (at;; 1:,wo i.ooal:.ions un lli'i lefl rind rigid siiii'S, in t.ho npp«;M .ind lower pui I h inn) . Tho oonvonl bina 1 dio catd:ing nsing a I iiiiii iiiim ailny nidlni biin HHednii dir.ilds, 5 Be I tuvl- almost: a i. I, ri|ii),id:iii-HS, rm ■! riiiijii I ,ii;- o|u-niliigM, tifjiiclios and wavegiiliio sections n^^odlll| Mecdiidaiy jji III'f:!S;) i, ng . tn c^ont |-,ist:, in this liiJMinpI.e, tho pi oi'tiss i ng 24 Wi'tM iif^icioBfjary only (rir t.hreadi rii;i (IIIW^H IIOJH W.IM ronnod by Cr:iid hnj) , anij tor: ( I iii Mhing oi: I lni (iin I .icie ri|oni:|ld, Inid conlaid: wLtli a printed c-ircuil: boai-d. I\i^ a i !c;)nM»:ii(n«:nii:<:i, till' r:(i,'3l: waa di^cireaaed i,iy 4 0V, aa i'iJinpa i: ocl vj M li llm i c;oii void: :l onal ciompontml.. I OiKwl I (r'lx..ii(iplos A7 to A9) l)hi-ca,st: mechanical coinpontnd a liav Inn hlijli- I in(|nency clii'nll:M werti inannf:ac:!t nred nsi.iici Al. luya '.'. lo 4 |)rn|iri red in ) FiH.niip I i:ii:i A2 l.o A4 , liy a inot.liod a I iid I a ( Id Ihal dmio'r I Imd in l'lM,:iiii|;d o A(), .Si in 11 rrr ly to I'lKinnp h' An, \:\\ii iiln-T!,nd coiii|H »nonl: a aJnioat: noodhu:| no Mncnndaiy pi cuaiwi/i I n<| wnrc.) aiici'oaa I i;i I ly obt:ai \M.H\ . I (It)(■.'■,! i i'lio |:i)-t=)aBnl- invoid:ion waa nxp ] ,i I nnrj in|niiiiii:i In Dliuaiip IOM. A t'i.rsi ollect: o1: Idio |iinMiail :lnv'Md:lon la that: I ho d I a ( 1: of td'n; prodricta may oxliiiiiiii|\' be loitiicml, ,IM c'onipii I i:irl wlldi convoti Li onai. alnniliiiiiii alloy iiialoiltila {'iw die I'lial Ing. Aa a oonaeqrunicn, (rinmnnln lor I ho aofiondary ) pi or'i.iaa 1 ng (maclrlning) may ext i aniH | y Im leilncHil. Mhino aliiioat ril] portiona procesaed by drilling, Hijnani dill ling, trortoli rormat;.ion anii pocketiing may bo i Mat al:i I o witdi nearly slialghl: profiles (ovon withont, I iiol I iial I on doiiuajrl lnr) on ■ all, t^'in); so tliaL l:tie lumipoiienLa iiiriy bo iihuin I .:ii,:l: n i od moat. 5 3liri|i1y .:iit low cost;. [(.11) (a,,! A socond ef]:di;l, o.l; tlie p:i o.'.aiid liivoni Ion la llial. I.ho 25 coiiii H)riit| A lonrth effect: of the promnil: Invoiil Ion :l M I hat the pinid H.lciji a.l. loy is Hi:iper:i.or to Uio en m vmi 11 una I ahiiiihn.ini alliiy iMritoriaTa for.' dle-ca3t:tng (Abt'l, |i:ir nxainplo) In toiiiiM i)| iiaHl:ab.l .1 ily. The preolMlnii .illoy id I ho pioMoiit .illVMUI. I.fiii I.H :1 ucireaMod in the n|;:iin d I I •;' gi.iiv|ly l.'l luld, bill may r(n::lni:!e 1 lie average l:h1 (:d';iit:iMM 'd llio pimlriolM lo 7nv,, wlthi)i.d: al'fect.liK) the masH id: piiH|iii:d::M. Ai-.i a i:;!i ijiiii II |iii:)iioi:i, the maaa of product may bn ai:l)nMlablii ei |u I v,i 11 lU Id y lo IhiiMi) made of aluiiihiuiii all.iiy. I a 1) h' 11 /\n IM cijoar I IDIII the al:)ovo, unn MI I hf prcc:lMli)ii alLiiy id I l"ui preaent .liivent.ion talann ,i Lndo idinol In 26 Uial Mil' proiiucil H i»i|ii 1 val (iid. In I'liiivnnt I ona I ni.n.'li I n^d 1'(.ifTipi ihi:'i il: (3 inriy bo obl.fi l.nab.l H by d t ^ i MMI 1 ivj. IIMl! of I,he prec'.:! aion a I, b:)y hd d I n • i],i(d I )n;i ^f 1,1 ID picsiMd; Invenl:]oD eiialj.les r:a.sl,:lni| wIMi prei L'unii'Md i coinpa r al )l.e bo procilMnneaB of inaoh I n I ii'l. Rua I I.'/,a I: Ion ol c|ot)iiii4l, i: Y comparable to l:hal. of tTi.ioli i runi (:oiii|:)i iDonl: M aimfd.y-by I he iiaat: piroducl: ptir se provJdoM .,i largn ileiirm) ol: cost rfiilvir:'.!; i on and ahorlinnnd period in] \ \\u deviit I opMiiHid: and evaIuat i on. ) [(11)71)] i5escri)"il: iona have been niaiJn Ln IIIK alHive, i:td-oii:iiiij to |i',x;amp]-es rnnrely aa tsxompiary oaaon id t h".^ pr.onmd: invontion, while alldwing adojil::! im ol: vaiinn/ii con I Lgurationa ottier I haii Idioao IIKHI') i bod In l:ht-i abovo. 27 C:i,AIM,". 1 l\ |)n:ii:: 1 M Lou riljoy tor i:l I | 00111 .1 I li I in | a I mil I iiiiin, ;-t 1.11 oon rnid /.Inc, wlioti'hi on I lio liasis of. I:he oveiral. I iiia/ui, Lln' i'iiiii;itnl of naicl a hiiii I iiriiii IR ^O'I^ by ni<:i,'iH or more .iinl A^<'i< by ma 1111 or I OHM, aii'l I ho oonl::onl: of Ma.Ici ailioon la "h I'V inaaa oi' nioro and HV, by itiaaa o f loaa. 2. Tlio pi'oola.ioii .illoy for din oaal hii;i afi OI.II.UKMI I 11 T'I a I III I, wheioin l.lic oorrl-enl. ol ftald i.liio hi .M\-l> l:)y iiiriaa 01 1111,1,1.0 and bH'h by iiiriMS or leaa. 3. Tlio procl.Hfon a.l l,oy for d l.i:vMiaMl liii;) aa iil,;iliiind in CI ..■! I in 1, whei.'oiai fho conterri: of aa I d /1 ric; la !(1V, |)y maaa ■ 01 iiii:)re and 1)7% by maas or lesa. 4. 'l-'fie proc.la.lon a.l.l.oy for d 1 a-rjaaM IM:| i-ia 1.: I (fi Imod In CJ,:)hn 1, wherojai tlm f!onl:ent of nald i^biio la 3')'^. I)y iiiaaH or more and 1)1! % by ma a a or leaa. 5. The precision a.lioy foi: d 1 »:»r,!aid,, lag aa clalmoil In any oiio of Claima 1 to A, iii,i. Idier r'diil a :l 111 ad 0, I'i*. iiy in,iaa or mrai' <:ini:l 0. 2'A by iiiaMa or .ioaa o\ < (.ippti 1 , 0 , 0 I V, )iy iiiaaa 01 nuoi- ai'ii:l O.l'i', by niriaa or Ioaa o| itiai|ia"i h.1111, ,Hir;l inov I. I.ab.lo iiiifiii i" 1 I: lea . 2n 6. Tlio i;)roc.i.s:l.oii <■) U oy for IJIO-O.IMI IIM;:! .in cbjl.triotl In Cbiliii ':ir whertiln UIH i.:onl:ent ol aa bi 0 1 more and ,';)7.n9'i', by mass or leaM. 11 C M .1' I V, by ma MM 7. A preclal.on alloy for d i B-IM/II: |.iii| i-:oi)ipM a I mi -IdV, by Ilia MM or more and 4 5'-/i by ma as or loaa i:d aliiiiiinmri, ilV, by ni.iriM irr more and 117, liy mass or lima of allli'on, ami \\\v\ biiibmoe of: zinc and inevitable iiiipirrll low. [i. A |:)r-(:!i:: I M Ion alloy for di <;) -1'rinr 1 IM| i.'i.niipi I M I mi ''107, by niriMM Ol more anii 'I'VA by mans o:i Inan id al iiiii I riniii, i.!7, by maMM 01 iiio.re and H7, by iiuiaa or Innn ri| Miiiion, 0. 17i by niaMM Ol more and O.V.'l by inaas n.i hmn M| oop|.ioi, 1), II 1,7, |)y m.iMM oi mi'ire and (i.lv, l)y mass oi IHMM id nruinoa I iim, rind I I HI) b.ibiiii'e of '/Jnn and Ja)evll<:ibln liiipiii ItluM, M. A pr:ei::lMloii .illiiy die-ciaat i'«iiiipi imai t; oompnMMil of I,he pioi'lujiin alloy foi; d Ui-ciast Intj donr'i Iborl In niny iimi o|: CiaiiiiM 1 lo 8. ill. A mefliod oJ: mainif aclairi n(| ii jiniohiioii ,i|. I.oy lOi dle-CMMI 1 IU| comprisincj: i.jfifainlng a iriol I on metal oi m I a I n Imj .i 1 iiiii l.iiiim, i'.l.m.:, alJioon, copper and maynea.l.um; ,iiid ofitaining a pi'errision alloy Im d I e-o,jMt; Uicj c< Mil rii 11 ing, on l:h(-! I:ia,sj.s of tho ovoi.ill ma/i;i, '\i)'h by mass o.i move anci '1':)% by iihrss or .leaa i.P alniiiliinm, iOv, by iiidss 29 or inoto and S7.B')?, by ina,s>s ov UIMH oi 'llM^ :■''/' by IIIIIMH ivr nioiii and B% l:)y mata-i or le.s.s of j11 I II.'MII, 0. I V, l^y m,u>n in mo r o and 0.2?i by rriaM.s or: .IBHH OI r'i:i}:)|H,;H , 0.0 1% liy IIUIMM op nioi i;' and 0.1?, by maMM or IBHS of iiiaqni't/i I i:ini, .iiid t.novllalile ill! 1:1 url ties . 1 )nlod llUN 9 day of March 200') (AKINDAMl'AUl-) ()rnor'»iililii|4i% \h I'onning Agiiiil nirlhu A|)|illoiiii(H