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2342-12-22-1xdlkOt0DKODr(b)ZxZy(a)2-2235DA0A0=4π2D2-1aboo1aboo1oo1ab2-3abP2-4a2-4b2-4c2-4d2-5aRBBB2πRPB'BBθ2-5b(d)(b)(c)(a)do1oabc2-32-4236tgθ=RPπ22-212-6a2-6bB0C0B0C0PPPDP/D2-6cr2πrθrtgθ=rPπ22-3rθBB22RRBAB1A1A2B2P(b)(a)B'B2B1P2-5OB0C02rrP(b)(c)B0C0RC0(a)P/4B02-6237rθ2-7a2-7br1r2r3θ1θ2θ32-80.7R0.75RRP0.7RP0.75R22-6b2-6c2-925%40%AB2-10BC1232r32r2P2r1Pr1r2r3(b)(a)2-72r32r1P3P2P2r22-82382-10bttbδ=btfMfMbf=fM/b2-1032-11OUttbbtbbt2-9htfMtbfMtbfMbhtb(b)521521(a)65t4321BCA2-10ab123456239OUεOUzRε15°APAPA0=AP/A0xsθsOUOUtt0Dt0/D2-11ad2-11adDd/D2-11cUoXrFrBt0lBlKxsot(c)(b)(a)tC1B1A1YXUCABUoszR2-11240AEAEA0=AE/A02-11bADADA0AD/A0bmbm=)2(EdRZA-AEdZmbmb=Dbm=)1(2/π0EDdZAA-2-42-12~12-13a2-13rB0A0C0H0A0J0111JAH2-13bBACH1A1J1111JAH′′′A1J111JA′′H1A111AH′′24155855736524312251588017131624332631628131534636829641237838827542841025237937922435515°345°250470792AAR700R900R74031:5260110180120D+2.3+0.10045+0.0329682695745352516117136AA31619733345°45°R7R130R=1120P=1790r=1064P=1790r=1008P=1790r=896P=1790r=784P=1790r=672P=1790r=560P=1775r=448P=1700r=224P=1471r=336P=15582-121234567224280+1.003454123903482422-13brPθπ2tg1-=Pmrm2-13J0H0S0H02-13bJHSHJHSH2-13b1H′1A′1A′J1′abSAAHαβ2-13b2-142-13bSJ2-14C2-13bH214B2babaBAABJSHCSJBrC0J1J'1A'1HBCB0AH'H0H'1S'S0A0J0H1A12-13AC'1A'1B'1B'A'C'CB2-14243AU99-49-59-69-710.8R2-15rlmmrl0.8Rbrl=0.004~0.005b22-160.9Rrlt0.98-512-17r=OA12-17cπ2POF=AFrPOAFπ2tg=∠OAF∠3.04.05.02.01.06.07.08.091112108345670.95R0.90R0.80Rr1Dmrmm5432143201t0.9RDmt0.9Rmm2-152-16244r2ANN'⊥AFθOAFACN=∠=′∠JHNN'1JJ′1HH′aHA=′1bJA=′132-17bOrA1J1bJA=′1A1H1aHA=′1J1H14r0.2R0.3R0.9R0.95R2-17cFπ2Pπ2PF22-13b2-17cSHSAαHAβ12-17aOUA1OUA′A′A1cbaP2LS'S1b'baUTUTooL'H'A'H1J1A1H'aHBb'SJJ'bCN'NAFo11TU2-172452A′αA'L=βA'L'=αβ2-17A1S1=b′b′2-17cS1SS1A′LLS′S′SH1A′L′H′H′H32-17aS′LS′LAS′LL2-17a32-18TOUUπ2POF=PFUUNN′FUTTDNN′OOUUTaDU=T2-18T1T2-18aOU′r'r'U'L'DTaP2T1T'IK'G'NN'UKGOOFI'H'2-18246U′UU′U′L′TDβT1U′L′T′U′2-18H′OH′r′III′II′GG′KK′IKGI′K′G′4B1TC12-19rOAB1AC12-20aB0AC0OALEKAB1AClB0AC0baB1B2C2C1B0FLXYKOEC0YXB1B2MAALKOC2C1C2TMAOFB1B2C1P/22-192-20247AOAAB0AC0XEYALEKAθB0AC0B2AC2B0AC0B2AC2AOEθLEKAB1B2C1C2LOK2-20b2-20aOXrsecθOA=rA()θrrθr22secsec=rsecθ2-19rOA1π2POF=AFθrAFsec=2FFMAFOAMθrθAFMA2secsec==MAA3MMAB2AC2B1C1OFB1B2C1C2B2AC2B2C2B2C2B2AC2B2ABAAC2ACBAAC2-17aBAACB2C252-21dt2-22PDNdhdt()th8.2~6.2dd=()th1.2~8.1dd=d1d2d2dh=0.75~0.90d1dh=1.05~1.15l10.3l0l0248δ0.75t0.2Rt0.2R0.2Rr1r2r1=0.033Dr2=0.044Dl0l0=2.7dtl0=dhl0=2.5dtl0=dh+100mm3223(%)0±⎟⎠⎞⎜⎝⎛-=DDlDdtdsl0161~1011/3PDNdhd2d3d1r1r2t0.2Rl1dtl0600500400300200dmm10065432102-212-222492-12-22-1Cu%Mn%Fe%Zn%Al%HMnFe55-3-155~583~40.5~0.15----ZHAl67-5-2-266~681.5~2.51.5~2.54~62-2σb(kgfmm2)δs(%)HMnFe55-3-145501510ZHAl67-5-2-262121/4~1/31Rab2-231+KR+a+b2502-23ABO2-23fgABABABbw2-23°+++=°360])1[(π2wwbaRKαb°°+++=ww360])1[(π2αbaRKb2-5bwmRmambm°wαK2-4abfg2-3mm2-32-4abfg15~30~10060~12070~150K0.008~0.0100.018~0.0200.013~0.0152-24b()°°+=(b)(a)Hthw0bwACBWa+bOgf°RAB2-23ab251pp=0.010.02HtHt=80100mm2-52-62-24b22-52-6Hw1+KR+a+bOUhNSHHhh+++=Δt0NN2-72-24hN0cabR0=1+KRR1=R0+a+bR1R0b,ca,dRNNWDHHtHtShN0bWbNhWhW0Sa+bRNR0adcbOAdc,baBCUABC,DCDB,A,2-24252()°°+=NN0N3601αHphHNm°NαHtmΔH1+KR+a+bhw0RNhN02-24b()()°°°+-°+=-=NNww0N0w36012136012122ΔαHpαHphhH())(7201ΔNNwwHαHαpH°°-°+=2-24bS()[]N1tgRbaRKεS-+++=ε2-7()()()()[]εRbaRKHαHαpHHαphtg172013601NNNwwtNNN-++++-°+++°+=°°°2-8bN°=°360π2NNNαRb2-9RN2-82-92-52-6Ht°Nα°wαabfg2-252532-262-26b12-27cdb7896910a11347512862-251234567891011baAYYAYXXYXX2-262542312-2835kgfcm23542-29αyPiyαP°°=360i5~618361/201/10AAA-A2-27812657432-281234567825511~2%2%2-292562RNGx≤2-10xkgfGkgfNrpmRm2100GlM≤2-11Mkgf·mGkgflm2-52-50.5%0.5%0.75%1.0%1.0%1.5%1.0%1.0%1.5%+3.0%+4.0%+6.0%2.0%2.0%3.0%0.5˚0.5˚0.5˚r=300~1000mm651r0.3Rrmm64500μr=300~1000mm55500μr0.3Rrmm44500μ1μ10001mm257652111/4d′0.550.8max06.0Td'≥212d′Tmax1417%ba534986721SBdKd2SBbMlB2-301234567892582-30101.53cba1:202-31259123452012mm232-31a2-31bc