河北工程大学考试冲压课程设计_弯角件.doc

1. 1.1. a3q235a1.5mm 1-1 1.2 a3a3q235aa30.14%0.22%235mpa375460mpa 1.3 a3 1.425.1=t3r2/=tr5.10r7/=tr5.312tmm 1rsrs=?=35.135.1220 2.1 2-1 2-131234567 2.2 2.3 4 3.1 12 3.2 4.1 tr5.014-37ktrllllll+=+=210215 lmm 1l 2lmm k14-30.38 rmmtmm1 mml6.285.138.03214.35.75.151+=28.5mm2r126/30=4-1mml6.415.138.05.10614.32302+=41.5mm364-2 4.2 1 trkbtfb+27.0 k11.32.1=kb30mmt1.5mm b375460mpa420mpa r3mm nf52925.134205.1302.17.02=+ 14-41 paf?= a,mm2p14-44060mpa50mpa 2465305.15mma= 7knnf3.232325046550= 60%80% ()ff8.06.0= 0.7knff7.37.0=2 nf75.16535.15.104205.15.122.17.022=+ 25.1375.55.122mma=knnf9.668755.13750= knff2.17.0= 4.3 knf2.309.63.23=+= knff36.542.308.18.1=;. 63kn2363jc? 4-1 63kn170mm50mm40mm 160/min 150mm 3050mm40mm315mm150mm200mm70mm 30 110mm110mm30mm8 90vv5-15-1 5.1 1 minr3rv9013prr= 10.5r14-32 2spetrretr=+ rmm r10.5mme210gpa t1.5mm9spmpasp14-30 11.752352762aspsmmp= 33210101.510.58.5210101.52276210.5rmm=+ 28.5prr= 2 2tmmtr)63(= 3t;5.41mmrd= ;102mmrd= 3 v14-71520mmmml160= umml40= 5.2 1 nttz+=max zmm maxt1.5mm n14-100.10 mmz65.15.110.05.1=+= 2 10 it13it145-117.5mm20+17.5=37.5mm14-45 +?=0)75.0(ll 14-46 0)2(?=zll l37.5mm?,3,3-2?0.52mmit7it9893,3-2=0.039mm=0.062mmz1.65mm mmll062.00062.00011.37)52.075.075.30()75.0(+=?=?= 5-1 mmzll0039.00039.0046.35)65.111.37()(?=?=?= 30mm30mm28.5prr=mml40=44mmit7it9893,3-2=0.039mm=0.062mm mml0039.044?= +=0)2(zll11mmrrzpd5.15.81022=?=?=mml062.00062.0047)5.1244(+=+= 6.1 6.2 mm4030?11.5mm5040?hmaxhminhmmhhhmmhh5101max1min?+? 1hmmh170max=mmhh13040maxmin=?=h1hmm170130?222.4-23.2851/170130100160tigbmmh170130=35125160 5.2855/tgb40125160 6.2855/tgb1213025 1.2861/tgb388025 6.2861/tgbmm125160mm5.40mm70 7.1 11015 mm223 mm345mm25 1.2861/130528tgbhmm386.2861/6388025tgbh 7.2 : mm30: mm501.7646/7830tjba3032786-16/7mh136-1 7.3 6-26-21- 2- 3-4-147.4 6-3 6-31- 2- 3- 4-5- cr12mov cr12mov 300400mm300400cr12 15 9.19.1 9.19.1 8-116 8-28-317114 2 3 4 5 6 78 91