Paunenge uchigadzira mukufa kunofambira mberi, isina mubati kumanikidzwa, mamiriro ekumanikidza, uye zvigadzirwa zvese zvinokanganisa kugona kuwana zvinowirirana zvakatambanudzwa pasina kuunyana.
Mubvunzo: Tiri kutora makapu kubva mugiredhi 304 simbi isina tsvina.Pakutanga kumira kwekufa kwedu kunofambira mberi, tinokwevera kune inenge 0.75 masendimita yakadzika.Pandinotarisa hupamhi hweflange perimeter yechinhu chisina chinhu, mutsauko kubva kune rumwe rutivi kusvika kune rumwe rutivi unogona kuva wakakwirira se 0.003 inches.Kurova kwese kwakasiyana uye hakuoneki mune imwe nzvimbo yakasvibiswa, zvichida yakaudzwa chinhu chakasvibiswa. Kumucheto kwekona yekoiri huru. Tingawana sei kapu yakaumbwa inoramba yakaumbwa isina kuunyana?
A: Ndinoona mubvunzo wako unomutsa mibvunzo miviri: yekutanga, shanduko yaunowana mukuita lottery, uye chechipiri, iyo mbishi zvinhu uye mataurirwo azvo.
Mubvunzo wekutanga une chekuita nekukanganisa kwekugadzira maturusi, saka ngationgororei izvo zvakakosha.Kukwinya kusingadzoreki uye kuchinja kwemashure ukobvu hwekapu kunoratidza kusakwana kwekushandisa pachiteshi chako chinofambira mberi chekudhirowa.Pasina kuona dhizaini yako yekudhirowa, ndingatofanirwa kufunga kuti yako yekudhirowa punch uye kufa radii uye mikaha yadzo inosangana neyakagadzika magadzirirwo paramita.
Pakudhirowa kwakadzika, chivharo chinoiswa sandwich pakati pechidhirowa uye chibatiso chisina chinhu, ukuwo chibhakera chinodhirowa chinokwevera zvinhu mudhirowa kufa, kuchikwevera ichitenderedza radius yekudhirowa kuti iite goko. Pane kupesana kwakawanda pakati pekufa nemubati asina chinhu. Mukati mekuita uku, zvinhu zvinotsikirirwa nechemberi, ndicho chikonzero chekukwinya uye kuyerera kweradial elongation yechinhu chakanyanya kuyerera, kana kuyerera kwechinhu chisina kuvharwa chinopesana nechinhu chisina chinhu. ichaputsika pasi pekukweva kwekutambanudza punch.Kana yakanyanya kuderera, kuunyana kuchaitika.
Pane muganhu pakati peshell diameter uye dhayamita isina chinhu isingagoni kudarika kuti ibudirire kudhirowa kushanda.Muganho uyu unosiyana nepercent elongation yezvinhu.Mutemo mukuru ndeye 55% kusvika 60% yekutanga kudhirowa uye 20% kune imwe neimwe inotevera kudhirowa. zvakaoma kuwedzera mushure mekunge dhizaini yapera).
Iyo isina chinhu inobata pressure p ndeye 2.5 N/mm2 yesimbi, 2.0 kusvika 2.4 N/mm2 yemhangura alloys uye 1.2 kusvika 1.5 N/mm2 yealuminium alloys.
Kusiyana kwehupamhi hweflange kunoratidzawo kuti chigadzirwa chako chekugadzira hachina kusimba zvakakwana.Bhutsu dzako dzekuumbwa dzinofanira kunge dzakakora zvakakwana kuti dzikwanise kumira kudhonza pasina buckling.Zvitsigiro pasi pechigadziko chekufa zvinofanira kuva simbi yakasimba uye mapini ekushandisa anofanira kunge akakura zvakakwana kudzivirira chero kufamba kweparutivi kwepamusoro uye pasi maturusi panguva yekutambanudza.
Tarisa nhau dzako zvakare.Kana madhiri enhau akasakara uye asina kusimba, hazvina basa kuti mudziyo wako wakasimba - hausi kubudirira.Ona siraidhi yekutsikirira kuti uone kuti kureba kwakazara kwemuchina wekudhinda ndeyechokwadi uye mativi mana.Chengeta kuti mafuta ako ekudhirowa akanyatsopepetwa uye akachengetedzwa, uye kuti chiyero chekushandisa kwechishandiso uye nzvimbo yemuromo zvakagadziriswa.Nyatsoongorora, dhinda uye kuona kuti zvese zviri pamusoro ndezvo symmetry.Uye nyatsoteerera pakudhirowa radii; geometry yavo uye kupera kwepamusoro kunofanirwa kuve kwakakwana.
Zvakare, nepo vatengi vachiwanzoona 304L uye standard 304 seinochinjika, iyo 304L ndiyo iri nani sarudzo yekudhirowa.L inomiririra low kabhoni, inopa 304L simba regoho re0.2% ye35 KSI uye 304 ye0.2% ye42 KSI.Nechidimbu che16% kusimba uye kuderera kwe 3% kusimba kunoda kudzikisa goho 3 pakuita 0. kuseta chimiro chakaumbwa.Zviri nyore kushandisa.
Are shop stamping or tool and die issues confusing you?If so, please send your questions to kateb@thefabricator.com and have them answered by Thomas Vacca, Director of Engineering at Micro Co.
STAMPING Journal ndiyo yega yeindasitiri magazini yakatsaurirwa kushandira zvinodiwa pamusika wesimbi.Kubva 1989, chinyorwa ichi chave chichibata-bata matekinoroji, mafambiro eindastiri, maitiro akanakisa uye nhau kubatsira nyanzvi dzekudhinda kuita bhizinesi ravo nemazvo.
Iye zvino nekuwana kuzere kudhijitari yeThe FABRICATOR, kuwana nyore kune yakakosha indasitiri zviwanikwa.
Iyo yedhijitari edition yeThe Tube & Pipe Journal yave kuwanikwa zvizere, ichipa nyore kuwana kune yakakosha indasitiri zviwanikwa.
Nakidzwa nekuwana kuzere kudhijitari ye STAMPING Journal, iyo inopa kufambira mberi kwetekinoroji, maitiro epamusoro uye nhau dzeindasitiri yemusika wesimbi.
Ikozvino nekuwana kuzere kudhijitari yeThe Fabricator en Español, kuwana nyore kune yakakosha indasitiri zviwanikwa.