Steve Benson anobata maemail evaverengi kuti apindure mibvunzo pamusoro pekuverenga nekupeta.Getty Images
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Mubvunzo: Ndinoda kutanga nokutaura kuti iwe unonyora chinyorwa chikuru.Ndakazviona zvichibatsira zvikuru.Ndanga ndichinetseka nedambudziko muCAD software yedu uye handigoni kuwana mhinduro.Ndiri kugadzira urefu husina chinhu kune mupendero, asi software nguva dzose inoratidzika inoda imwe bend allowance.Mushandi wedu webhureki akandiudza kuti ndirege kusiya mvumo yebhendi yehem, 0 software, saka ndinobvumira 0 software ye800000. Ndakanga ndichiri kupera stock.
Semuenzaniso, ndine 16-ga.304 simbi isina tsvina, kunze kwezviyero 2 "uye 1.5", 0.75 ". Hem kune kunze. Vashandi vedu vebrake vakatsunga kuti bend allowance ndeye 0.117 inches. Patinowedzera chiyero uye mupendero, zvino bvisa + 2 isu tinowana bend 1 1 . kureba kwe4.132 inches.Zvisinei, kuverenga kwangu kwakandipa hurefu hupfupi husina chinhu (4.018 inches). Nezvose zvataurwa, tinoverenga sei flat blank yemupendero?
A: Chekutanga, ngatijekese mazwi mashoma.Wataura bend allowance (BA) asi hauna kutaura bend deduction (BD), ndakaona kuti hauna kubatanidza BD yemabhendi pakati pe2.0″ ne1.5″.aspect.
BA neBD zvakasiyana uye hazvishanduki, asi kana iwe uchizvishandisa zvakanaka, zvose zvinokuendesa kunzvimbo imwe chete.BA ndiyo nhambwe yakatenderedza radius yakayerwa paaxis isina kwayakarerekera.Wobva wawedzera iyo nhamba kune yako yekunze zviyero kuti ikupe iyo flat blank urefu.BD inobviswa kubva kune yakakura zviyero zveworkpiece, imwe bend pane bend.
Mufananidzo 1 unoratidza mutsauko pakati pezviviri. Ingoita shuwa kuti uri kushandisa iyo chaiyo. Ziva kuti kukosha kweBA neBD kunogona kusiyana kubva pakubhenda kuenda pakubhenda, zvichienderana nekubhenda kona uye yekupedzisira yemukati radius.
Kuti uone dambudziko rako, uri kushandisa 0.060″ gobvu 304 simbi isina simbi ine bend imwe chete uye 2.0 uye 1.5 ″ mativi ekunze, uye 0.75″.Hem kumucheto.Zvakare, hauna kusanganisira ruzivo nezve bend angle uye mukati bend radius, asi kuti zvive nyore kuita 9 madhigirii emhepo. Izvi zvinokupa 0.099 inch.Floating bend radius, yakaverengerwa uchishandisa mutemo we20%. (Kuti uwane zvakawanda pamusoro pemutemo we20%, unogona kutarisa "Maitiro eKufanotaura Kwazvo Inner Bend Radius yeMhepo Formation" nekunyora musoro mubhokisi rekutsvaga rethefabricator.com.)
Kana iri 0.062 inches. Iyo punch radius inobhenda zvinhu nekupfuura 0.472 inches. Die kuvhura, iwe unowana 0.099 inches. Inoyangarara mukati me bend radius, BA yako inofanira kuva 0.141 inches, kunze kwekudzoka kunofanira kuva 0.125 inches, uye bend deduction iri pakati peBD50 ne10. 2.0 inches.(Unogona kuwana mafomula eBA neBD mukoramu yangu yapfuura, kusanganisira “Basics of Apply Bending Functions.”)
Zvadaro, unofanira kuverenga kuti chii chaunofanira kubvisa pahemu.Pasi pemamiriro ezvinhu akakwana, kubviswa kwechifukidzo chepamusoro kana chakavharwa (midziyo isingasviki 0.080 inches gobvu) i43% yehupamhi hwezvinhu.
0.017 inches.Musiyano pakati pe flat blank value yako ye 4.132 inches uye mine ye 4.1145 inches inogona kutsanangurwa zviri nyore nekuti hemming inonyanya kutsamira.ndinorevei?Zvakanaka, kana mufambisi akarova chikamu chakatsetseka chekukotama zvakanyanya, iwe uchawana nguva yakareba flange.Kana iyo flange inozopedzisira yarova zvakakwana.
Mubvunzo: Tine chigadziro chekukotama apo tinoumba mashizha akasiyana-siyana esimbi, kubva ku20-ga.Stainless kusvika ku10-ga.Pre-coated material.Tine press brake ine automatic tool yekugadzirisa, inogadziriswa V-die pasi uye self-positioning segmented punch pamusoro.Zvinosuruvarisa, takaita chikanganiso uye takarayira punch 06 radius ″.
Isu tiri kushanda pakuita kuti hurefu hwedu hweflange huenderane muchikamu chekutanga.Zvakakurudzirwa kuti software yedu yeCAD yaishandisa kuverenga kwakashata, asi kambani yedu yepurogiramu yakaona dambudziko uye yakati takanga zvakanaka.Ichava software yemuchina wekukotamisa here?Kana kuti isu tiri kunyanya kufunga?Inongove yakajairwa BA kugadzirisa here kana kuti tinogona kuwana punch itsva ne 0.032" ruzivo rwakakura rungave runobatsira.
A: Ndichagadzirisa maonero ako pamusoro pekutenga nzvimbo isiriyo yepanch radius kutanga.Kuchipa rudzi rwemuchina waunawo, ndiri kufungidzira kuti uri kugadzira mhepo.Izvi zvinonditungamirira kuti ndibvunze mibvunzo yakawanda.Kutanga, paunotumira basa kuchitoro, unoudza here mushandisi pane mold iyo dhizaini yekuvhura yechikamu inoumbwa?Inoita mutsauko mukuru.
Paunenge uchigadzira chikamu chemhepo, chikamu chekupedzisira chemukati chinoumbwa sechikamu chekuvhura kwe mold.Uyu ndiwo mutemo we 20% (ona mubvunzo wekutanga kuti uwane mamwe mashoko).Kuvhura kwefa kunokanganisa bend radius, iyo inobatawo BA uye BD.Saka kana kuverenga kwako kunosanganisira radius yakasiyana inokwanisika yekuvhura kufa kupfuura iyo inoshandiswa nemushandi pamushini, une dambudziko.
Ngatitii muchina unoshandisa hupamhi hwekufa hwakasiyana pane hwakarongwa. Muchiitiko ichi, muchina uchawana imwe yemukati bend radius pane yakarongwa, kushandura BA uye BD, uye pakupedzisira chikamu chakaumbwa zviyero.
Izvi zvinondiunza kune maonero ako pamusoro peiyo wrong punch radius.0.063″ kunze kwekunge uri kuedza kuwana yakasiyana kana diki yemukati bend radius.Radhiyo inofanira kushanda zvakanaka, ndicho chikonzero.
Yera iyo yakawanikwa yemukati bend radius uye ita shuwa kuti inopindirana neyakaverengerwa yemukati bend radius.Is punch radius yako yakashata here?Inoenderana nezvaurikuda kuita.Iyo punch radius inofanira kuenzana kana kuti yakaderera pane inoyangarara yemukati bend radius.Kana iyo punch radius yakakura kupfuura yakasikwa inoyangarara bend radius pane yakapihwa kufa kunovhura, iyo chikamu chemukati chichava chinja radius uye inotora iyo yemukati radius inoverenga. yeBA neBD.
Ukuwo, haudi kushandisa punch radius idiki zvakanyanya, inogona kurodza panokona uye kukonzera mamwe matambudziko akawanda.
Kunze kwezviviri izvi zvakanyanyisa, punch muchimiro chemhepo haisi chinhu kunze kwechikwata chekusundira uye haikanganisi BD neBA. Zvakare, bend radius inoratidzwa sechikamu chekuvhura kwefa, inoverengwa uchishandisa mutemo we20%.
Mubvunzo: Ndiri kuyedza kuverenga iyo yakanyanya lateral force yetsika hemming chishandiso kuona kuti vashandisi vakachengeteka panguva yehemming process. Une chero mazano ekundibatsira kuwana izvi?
Mhinduro: Lateral force kana lateral thrust yakaoma kuyera uye kuverenga kuitira flattening a hem pane press brake and in most cases hazvidiwi.Njodzi chaiyo iri overloading the press brake and destroy the punch and bed of the machine.Ram nemubhedha zvakapidiguka zvichiita kuti mumwe nomumwe akotame zvachose.
Mufananidzo 2. Mapureti anorovesa paseti yeaflatening dies inova nechokwadi chekuti maturusi epamusoro neepasi haafambe zvakatarisana.
Mabhureki ekudhinda anowanzo kutsausa pasi pemutoro uye anodzokera kunzvimbo yayo yepakutanga yakatsetseka kana mutoro wacho wabviswa.Asi kudarika muganhu wemutoro wemabhureki unogona kupeta zvikamu zvemuchina kusvika pavanenge vasingachadzokeri kunzvimbo yakatsetseka.Izvi zvinogona kukuvadza zvachose bhureki rekudhinda.Naizvozvo, iva nechokwadi chekufunga nezvekushanda kwako kwehemming mukuverenga matani.
Kana iyo flange ichaitwa flatten yakareba zvakakwana kuti iite flat, kusunda kweparutivi kunofanira kunge kuri kushoma.Zvisinei, kana ukaona kuti kusunda kwedivi kunoratidzika kunge kwakanyanyisa uye iwe uchida kudzikisira mafambiro uye kumonyoroka kweiyo mod, unogona kuwedzera maplate ekurovesa kune mod. Iyo inopinza ndiro haisi chinhu chinopfuura chidimbu chakakora chesimbi chakawedzerwa kune chepasi chishandiso, chinorebesa kumusoro kwechishandiso chepasi. uye maturusi epasi haafambe nenzira dzakapesana kune mumwe nemumwe (ona Mufananidzo 2).
Sezvandambotaura pakutanga kwechikamu chino, pane mibvunzo yakawandisa uye nguva shoma yekuipindura yese. Ndinokutendai nekushivirira kwenyu kana muchangobva kunditumira mibvunzo.
Chero zvazvingava, regai mibvunzo irambe ichibuda.Ndichavapindura nekukasira.Kusvika ipapo, ndinovimba mhinduro dziri pano dzichabatsira vakabvunza mubvunzo uye vamwe vakatarisana nematambudziko akafanana.
Ziva zvakavanzika zvekushandisa bhureki rekutsikisa mumusangano wemazuva maviri waNyamavhuvhu 8-9 nemudzidzisi Steve Benson kuti akudzidzise dzidziso uye masvomhu anokosha ari kumashure kwemuchina wako. Uchadzidza misimboti seri kwemhando yepamusoro pepa simbi yekupeta kuburikidza nemirayiridzo inopindirana uye matambudziko ebasa emuenzaniso panguva yese yekosi. Kuburikidza-nyore-ku-kunzwisisa-ku-nzwisisa dzidziso, iwe uchave wakanyatso dzidza hunyanzvi hwekuita basa, uye sarudza hunyanzvi hwekuita basa, uye sarudza hunyanzvi hwekuita basa. kufa kuvhura kuti udzivise chikamu chinokanganisa.Shanyira peji rechiitiko kuti udzidze zvakawanda.
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