Igama elithi hemming linomsuka walo ekwenziweni kwendwangu lapho unqenqema lwendwangu lugoqwa lubuyele kulo bese luthungwa luvaleke.Eshidini lensimbi hemming kusho ukugoqa insimbi ibuyele kuyo.Uma usebenza nge-Brake Press hems ihlale idalwa ngenqubo yezinyathelo ezimbili:
Dala ukugoba nge-Acute Angle Tooling ensimbi, u-30° uyancomeka kodwa u-45° uzosebenza kwezinye izimo.
Beka i-acute bend ngaphansi kwe-bar flattening futhi usebenzise ingcindezi eyanele ukuze uqedele ukuvala ukugoba.
Isinyathelo sokuqala senziwa ngendlela efanayo nanoma yikuphi ukugoba kwe-angle acute evamile.Isigaba sesibili senqubo yokusonta sidinga ukwazi okwengeziwe ukuthi kanjani ngasohlangothini luka-opharetha we-Brake Press kanye nomklami wamathuluzi ngenxa yokuthi i-engeli yeshidi lensimbi, ibha eyisicaba ifuna ukushelela phansi futhi isuke kushidi lensimbi.Ngaphezu kwalokho ucezu lomsebenzi lufuna ukuphuma phakathi kwamabha.Lawa mandla amabili aziwa ngokuthi ama-thrust forces.
Umfanekiso Wama-Trust Forces Avela Ku-Hemming Sheet Metal
Lokhu kudinga ukuthi idayi eyisicaba iklanyelwe ukumelana namandla okucindezela futhi ihlale iphansi.Ukwengeza kudinga ukuthi u-opharetha abeke amandla abheke phambili ngokumelene neshidi lensimbi ukuze alivimbele ukuthi lingasheleli liphume kudiyizi.Lawa mandla agqama kakhulu ezingxenyeni zomsebenzi eziwugqinsi ezinama-flange amafushane.Sinalezi zici engqondweni ake sihlole ezintathu zezinhlobo ezivame kakhulu zokusetha i-hemming kanye namathuluzi atholakalayo kumabhuleki okucindezela.
Ukusethwa kwamathuluzi amaningi, i-Acute Tooling kanye ne-Flattening Die
Indlela elula yokusetha i-hemming ihlanganisa ukusetha okubili okuhlukene.Owokuqala ukusetha okunamandla, lapho ukugoba okungu-30° kudalwe kusetshenziswa amathuluzi ajwayelekile.Uma ukugoba kokuqala sekwenziwe ingxenye idluliselwa komunye umshini, noma ukusetha okusha kufakwa kowokuqala.Isethaphu yesibili ibha elula yokucaba.Ukugoba kufakwa ngaphansi kwebha eyisicaba futhi ivaliwe.Lokhu kusetha akudingi noma yimaphi amathuluzi akhethekile futhi kungase kube kuhle kuma-run amafushane, ama-prototypes noma izitolo zemisebenzi ezizodinga ukwakha ubude obuhlukahlukene.Njengezingcezu ngazinye ze-Brake Press Tooling i-acute tooling kanye nebha eyisicaba iguquguquka kakhulu, futhi yengeza inani ngaphandle kokuhlanganisa.I-draw backs kule sistimu iyisidingo esisobala sokusethwa okubili okuyingqayizivele, futhi akukho kulawulwa kwe-thrust enqubweni yokucaba.
Izigaba ezimbili ze-Hemming Punch ne-Die Combination
I-hemming die yezigaba ezimbili isebenza ngokusebenzisa i-deep ejulile kanye nesibhakela senkemba esinamandla.Ukugoba kokuqala kusebenzisa ishaneli njengokuvulwa kwe-av ukuze kufake umoya ukugoba.Esigabeni sesibili i-punch ishelela esiteshini njengoba i-punch ivaliwe futhi unqenqema lwe-punch lusetshenziselwa ukucaba insimbi yeshidi.Ukubeka i-punch ngaphakathi kwesiteshi se-die kuqondisa kabusha amandla okucindezela ku-dayizi, engavikeleka kalula kunepunch ngokwayo.I-drawback yalolu hlobo lokufa ukuthi ludinga ukulawulwa kwe-CNC.Ngenxa yomehluko wokuphakama phakathi kokushaywa kwesigaba sokuqala nesesibili ukulungisa ngesandla kungadla isikhathi esiningi.Ngaphezu kwalokho lolu hlobo lokufa lungahlukaniswa kalula ukusuka phezu kwamathoni, kuqinise isidingo sezokuphepha ezilawulwa yikhompyutha.
Izigaba ezintathu ze-Hemming Punch And Die
Olunye uhlobo oluvame kakhulu lwamathuluzi olwakhelwe ngokuqondile ukudala imiphetho isiteji ezintathu, noma uhlobo lwe-accordion punch and die.Ukuvulwa kwe-v kuhlala phezu kwephedi elayishiwe entwasahlobo, ehlala phezu kwephedi elingezansi.Esigabeni sokuqala i-acute bend idalwe ekuvuleni kwe-v ngemuva kokuthi intwasahlobo icindezelekile futhi i-pad engenhla ihlezi phezu kwephedi ephansi.Esigabeni sesibili inqama engaphezulu iyahoxiswa bese iziphethu phakathi kwephedi elingaphezulu nephansi liyibuyisela endaweni yayo yokuqala.Ishidi lensimbi libe selibekwa phakathi kwephedi eliphezulu neliphansi bese ipunch ivalwa idlulisa amathani nge-v die.Ukukhululwa okukhethekile kunikezwa ku-v die ukuvumela leli thuluzi ekusebenziseni ithuluzi.Igayidi ephakathi kwephedi engaphezulu nephansi ivimbela amandla okududula ukuthi angathinti konke okokusebenza.Ifa elingezansi liphinde linikeze u-opharetha okuthile ukuze asunduze ucezu lomsebenzi ekuvimbeleni insimbi ukuba ingasheleli iphume.Leli thuluzi lincanyelwa kumabhuleki angumshini, okungewona we-CNC ngoba umehluko wobude bohlangothi mncane kakhulu, okwenza ukulungisa kudle isikhathi esincane.Lokhu kusetha kukuvumela futhi ukuthi usebenzise i-punch acute ejwayelekile.
I-Tonnage Iyadingeka Ukuze I-Hemming
I-tonnage edingekayo uma i-hemming izoncika emandleni wempahla yakho, ukujiya kwayo futhi okubaluleke kakhulu ukuthi hlobo luni lomphetho ofisa ukuwenza.Ukwehla kwezinyembezi nemiphetho evulekile akudingi cishe amathani amaningi njengoba kwenza umphetho oyisicaba.Lokhu kungenxa yokuthi ushintsha irediyasi yangaphakathi kancane kancane, ngokuyisisekelo uqhubeka nokugoba udlule u-30°.Uma ucaba insimbi wenza i-crease futhi ukhipha i-radius yangaphakathi.Manje usuwenza insimbi kunokumane uyigoqe.Ngezansi ungabona ishadi le-hemming tonnage lensimbi egoqiwe ebandayo.
Ukusetshenziswa Kwama-Hems
Amahemu ajwayele ukusetshenziselwa ukuphinda kusetshenziswe, ukufihla ukungapheleli nokuhlinzeka ngomphetho ophephile wokubamba.Uma idizayini idinga isisefo, ngisho nonqenqema izindleko ezengeziwe zempahla kanye nokucutshungulwa komphetho kuvame ukukhethwa kwezinye izinqubo zokwelapha unqenqema.Abaqambi kufanele babheke ngale komphetho owodwa omncane oyisicaba ukuze baphathe imiphetho.Ukuphinda kabili umphetho kungakha unqenqema oluphephe ngokuphelele ukuthi luphathwe ngaphandle kokunaka ikhwalithi yokuqala yonqenqema.Ukwengeza umphetho 'phakathi' kwephrofayili egobile kungavula iminyango kumaphrofayili ahlukahlukene angenzeki ngaphandle kokubopha noma ukushisela.Ngisho nangaphandle kwemishini yokuthunga eyinkimbinkimbi inhlanganisela yamahemu amabili ingakha amalunga aqinile, aqinile anokubopha okuncane noma okuncane.Amahemu angasetshenziswa ukuphinda kabili ubukhulu bensimbi ezindaweni ezingase zidinge ukwesekwa okwengeziwe.Amahemu asetshenziswa embonini yesevisi yokudla kufanele avale ngaso sonke isikhathi ukuze ahlanzeke (kunzima kakhulu ukuwahlanza ngaphakathi kwendawo yokuvula).
I-Double Hem Edge - I-Hem kanye Ne-Double Metal Thickness Bend Ukuze Usekele - Ukusebenzisa Ihemu Ukwakha Amaphrofayili Athuthukile
Ukunquma Amaphethini Ayisicaba Emiphetho
Iphethini eyisicaba ye-hem ayibalwa ngendlela efanayo nokugoba okujwayelekile.Lokhu kungenxa yokuthi izici ezifana ne-Outside Setback kanye ne-K-Factor ziba yize njengoba i-apex yokugoba ihambela kokungapheli.Ukuzama ukubala isibonelelo se-hem efana nalena kuzoholela ekukhungathekeni.Esikhundleni salokho kusetshenziswa umthetho wesithupha we-43% wezinto ezibonakalayo lapho kubalwa isibonelelo.Isibonelo uma impahla yethu ithi .0598” futhi sifuna ukuzuza u-1/2” hem sizothatha u-43% we-.0598, .0257 futhi sengeze lokho ku-1/2” esinikeza u-0.5257”.Ngakho-ke kufanele sishiye u-0.5257” ekupheleni kwephethini eyisicaba ukuze sifinyelele u-1/2” umphetho.Kumele kuqashelwe ukuthi lo mthetho wesithupha awunembile ngo-100%.Uma ungathanda ukudala umphetho wokunemba okuphezulu ngaso sonke isikhathi kufanele ugobe ucezu lwesampula, ulinganise futhi ulungise izakhiwo zakho.Kuwukuhlakanipha ukwenza lokhu ezintweni zakho ezivame ukusongelwa futhi udale ishadi ozolisebenzisa esikhathini esizayo.Ubuncane besayizi noma ubude be-hem buzonqunywa ukuvuleka kwakho kwe-v kwefa lakho.Kuyoba ukuhlakanipha ukuhlola ubude bomphetho wakho ngemva kokugoba ngoba isinyathelo sokugcina sokucaba insimbi ingaba yinto engabikezeleki ngendlela enwebeka ngayo futhi isicaba.Ukusebenzisa ubude be-flange obuncane obujwayelekile kufanele kukusondeze ngokwanele ezinhlelweni eziningi.Ukukhumbula Ishadi Le-Air Bend Force ubude obuncane be-flange bethuluzi elibukhali yilokhu:
Isikhathi sokuthumela: Aug-27-2021