Kugamuchirwa kuti utibate: vicky@qyprecision.com

Nezve Mold Precision Work Technology yeZinc Alloy Die Casting

Manufacturing Process: Die Casting. Kuchengetedza mari yakawanda yekugadzirwa kukuru, yakakwirira uye yakagadzikana mhando.

QY Precision ine ruzivo mumhando dzese dzekugadzira zvikamu, Welcome tumira kubvunza.

Sechishandiso chakakosha chemidziyo, mold inotora chinzvimbo chakakosha mumaindasitiri maindasitiri senge zvinhu zvevatengi, zvemagetsi nemagetsi, mota, uye kugadzira ndege. Kuvandudza tekinoroji nhanho uye mhando yekugadzira mold chinhu chakakosha muindasitiri yekugadzira mold. Kushandiswa kwechigadzirwa chepamusoro-chepamusoro chekucheka tekinoroji kunogona kuvandudza zvakanyanya kugadzirwa kwe mold, kunyatsoita mold uye hupenyu hwebasa, saka zvishoma nezvishoma inotsiva EDM molds, uye yakave yakagamuchirwa zvakanyanya nemakambani ekunze ekugadzira mold, ichiva chimiro chikuru mukugadzira mold. Iyo nguva yekushandiswa kweyepamusoro-kumhanya yekucheka tekinoroji mukugadzira mold ipfupi, uye zvinodiwa zvehunyanzvi mukushandiswa zvakanyanyisa.

High-speed yekucheka teknolojia

High-speed cuting ine zvakanakira kuderera kwekushisa kukwira (iyo workpiece inongowedzera ne3 ° C), diki inopisa deformation, nezvimwewo. Kubviswa kwesimbi pamagetsi emagetsi kunowedzerwa ne30% kusvika ku40%, simba rekucheka rinoderedzwa. ne30%, uye hupenyu hwekucheka kwechishandiso hunowedzera. 70%, kupisa kwekucheka kwakasara mu zinc alloy kufa-casting kunoderedzwa zvakanyanya, uye iyo yakaderera-yakatemwa yekucheka vibration inenge yanyangarika. Nekuwedzera kwekumhanya kwekucheka, mwero wekubvisa wechinhu chisina chinhu pane imwe nguva yeyuniti unowedzera, nguva yekucheka inodzikira, uye kushanda kwekugadzirisa kunowedzera, nekudaro kupfupisa kutenderera kwekugadzira chigadzirwa uye kugadzirisa kukwikwidza kwemusika wechigadzirwa. Panguva imwecheteyo, iyo yakakwirira-yekukurumidza machining ye snack banga uye yakakura yekudyisa mwero inoderedza simba rekucheka rinoshanda pane workpiece, uye kukurumidza-kumhanya kubuda kwemachipisi kunoderedza kupisa kwekucheka kunopfuudzwa kune workpiece, kunoderedza kushushikana kwekupisa uye deformation. , nekudaro kuvandudza kugadziridzwa kwe zinc alloy die-casting Rigidity, uye inopa mukana wekuchekwa kwezvikamu zvitete-madziro. Kumhanya-mhanya kwekugadzira zvinhu nekuoma kunopfuura HRC60 kunogona kutsiva iyo yakaderera-inoshanda EDM kune imwe nhanho, nokudaro kupfupisa kutenderera kwekugadzira mold kune imwe nhanho. Panguva imwecheteyo, kushandiswa kweyepamusoro-yekucheka tekinoroji kunogona kuchengetedza nezve 80% yenguva yekukuya yemanyorero mune inotevera kugadziridzwa kwe mold, chengetedza mutengo wekugadzirisa neinenge 30%, iyo roughness ye mold inogona kusvika Ra0. 1, uye kugona kwekucheka kwechishandiso kunogona kupetwa kaviri.

Zvakanakira zvekucheka-kumhanya kwekucheka kunoshandiswa pakugadzira mold

Hunhu hwekugadzirisa mold i-single-piece diki mabhechi uye yakaoma geometric maumbirwo, saka kutenderera kwekugadzirisa kwakareba uye kugona kwekugadzira kwakadzikira. Muchinyakare mold processing tekinoroji, kupedzisa mold dzakaomeswa kazhinji dzinoshandisa EDM uye manual polishing tekinoroji. Kupfupisa nguva yekugadzirisa uye kuderedza mari yekugadzira ndizvo zvinangwa zvikuru zvekugadzira mold processing tekinoroji. Mumakore achangopfuura, pakave nehunyanzvi hutsva hutsva mukugadzira mold tekinoroji, senge kucheka-kumhanya, CAD/CAE dhizaini simulation, kukurumidza prototyping, magetsi anoburitsa milling molding uye composite processing, pakati peiyo inonyanya kubata ziso uye inoshanda yakakwirira. -speed Cutting process.

High-speed yekucheka molds inoshandisa iyo yekumhanya uye yakakwirira yekudyisa mwero wemuchina chishandiso kupedzisa akawanda maitiro ekugadzira mold nekucheka. Zvakanakira zvekumhanya-mhanya machining molds zvinonyanya kuratidzwa mune zvinotevera zvinhu:

①Kumhanyisa-kumhanyisa kucheka kwakashata machining uye semi-kupedzisa machining kunovandudza zvakanyanya mwero wekubvisa simbi.

②Kushandisa maturusi emuchina wekucheka-yepamusoro-soro, maturusi uye tekinoroji, inogona kugadzira zvinhu zvakaomarara. Kune madiki madiki ekufa-casting molds, mushure mekupisa-kupisa, roughing uye kupedzisa kunogona kupedzwa mune imwe clamping; nokuda kwehombe-yekufa-kukanda molds, roughing uye semi-kupedza kunoitwa kusati kwaitwa kupisa, uye kupedzisa kunoitwa mushure mekupisa kupisa uye kuoma.

③Kucheka kwepamusoro-soro uye kwepamusoro-soro kwakaoma kunotsiva kutsetseka, kuderedza nguva yakawanda-inopedza nguva yekukuya, nekuvandudza kushanda ne50% kana ichienzaniswa neEDM.

④Hard kucheka maitiro iyo yekupedzisira kuumba nzvimbo yekuvandudza iyo yepamusoro mhando uye kurongeka kwechimiro (kwete chete kushata kwepamusoro kwakadzikira, asiwo kupenya kwepamusoro kwakakwira), izvo zvinobatsira pakugadzirisa mold yenzvimbo dzakakombama dzakakombama.

⑤Inodzivirira iyo decarburization, kupisa uye micro-cracks inokonzerwa nemagetsi spark uye kugaya, inoderedza zvakanyanya kukuvadzwa kwepamusoro kwe mold mushure mekupedza, uye inowedzera hupenyu hwefodya ne20%.

⑥ Iyo workpiece ine kupisa kushoma, yakaderedzwa yekucheka simba, uye diki deformation yekupisa. Inoshandiswa pamwe chete neCAD/CAM tekinoroji yekukurumidza kugadzirisa maelectrode, kunyanya maelectrodes ane maumbirwo akaomarara uye akatetepa-madziro ari nyore deformable electrode.

High-speed yekucheka muchina chishandiso chekugadzirisa molds

Paunenge uchisarudza yakakwira-kumhanya muchina chishandiso cheyakakwira-kumhanya kucheka mold, teerera kune zvinotevera nyaya:

(1) Iyo huru shaft yemuchina wemuchina inodiwa kuve nesimba rakakura uye kumhanya kwakanyanya kusangana nekukasharara uye kwakanaka machining. Zvishandiso zvidiki-diameter zvinofanirwa kushandiswa kupedzisa mold, uye kumhanya kwespindle kunogona kusvika kupfuura 15,000 kusvika 20,000 rpm. Maturusi emuchina ane spindle kumhanya pazasi 10000rpm anogona kuita hutsinye machining uye semi-yekupedzisira machining. Kana iwe uchida kusangana nezvose zvakakasharara uye kupedzisa machining mukugadzira mold hombe, yakasarudzwa muchina chishandiso chinofanira kunge chine maspindle maviri ane kumhanya kuviri, kana maviri akatsanangurwa emagetsi maspindle.

(2) Iyo inokurumidza kutenderera yemuchina chishandiso haidi yakawandisa inokurumidza isina basa sitiroko. Asi inofanirwa kunge iine yakakwira yekugadzira feed rate (30-60m/min) uye yakakwirira kukurumidza uye kudzikisira.

(3) Iine yakanaka-yepamusoro-kumhanya, yakakwirira-chaiyo yekudzora system, uye ine mabasa epamusoro-chaizvo kududzira, contour kumberi kutonga, kukurumidza kukurumidza, uye yakakwirira-chaiyo chinzvimbo chekutonga.

(4) Sarudza CAD/CAM software inofananidzwa ne-high-speed machine tools, kunyanya software ye-high-speed cutting molds.

Iko kushandiswa kweshanu-axis muchina maturusi mukugadzira mold iri kuwedzera zvishoma nezvishoma, uye ine zvinotevera zvakanakira kushandira pamwe neakakwira-kumhanya kucheka mold:

① Iyo yekucheka kona yechishandiso inogona kuchinjwa, mamiriro ekucheka akanaka, kupfeka kwechishandiso kunoderedzwa, izvo zvinobatsira kuchengetedza chishandiso uye kurebesa hupenyu hwechishandiso;

②Iyo nzira yekugadzira inochinjika, iyo inoderedza kupindira kwechishandiso, uye inogona kugadzira mold ine yakaoma pamusoro maumbirwo uye yakadzika mhango molds;

③Makuru ekugadziridza renji, akakodzera kugadzirisa akasiyana marudzi e mold.

(Five-axis linkage yakakwirira-kumhanya milling machining centre)

Zvishanu-axis muchina zvishandiso zvinowanzove nemhando mbiri: tafura mhando uye milling musoro mhando, iyo inogona kusarudzwa zvichienderana nerudzi rwe mold.

Tool tekinoroji ye-high-speed yekucheka inofa

High-speed machining inoda kuve nemidziyo yakakodzera. Kushandiswa kwezvakaoma alloy coated maturusi uye polycrystalline yakasimbiswa ceramic maturusi anoita kuti zvikwanisike kuti maturusi ave ese akakwirira-akaoma blade uye yakakwirira-kuoma matrix panguva imwe chete, iyo inosimudzira kuvandudza-kumhanya machining. Kuoma kwepolycrystalline cubic boron nitride (PCBN) blades inogona kusvika 3500 ~ 4500HV, uye kuoma kwe polycrystalline diamond (PCD) inogona kusvika 6000~10000HV. Kunyanya maturusi akavharidzirwa anoita basa rakakura muhafu-kupedzisa uye kupedzisa kwesimbi yakaoma.

Kazhinji, kana kukwidziridzwa kwechishandiso uye chibatiso chiri pamusoro pe3g, radial runout yechishandiso inofanira kunge iri pasi pe 0.015mm, uye kureba kwechishandiso hakufanirwe kunge kwakakura kudarika 4 nguva yedhayamita yechishandiso. Chiitiko chemumba chakakwira-kumhanya kwakananga machining ezviumbwa, kana uchishandisa diki-diameter bhora-yekupedzisira milling cutters yekupedzisa mold, mutsara wekumhanya unodarika 400m/min. Izvi zvine zvakakwirira zvinodikanwa zvematurusi emidziyo (kusanganisira kuoma, kuomarara, kuomarara kutsvuku), chimiro cheturusi (kusanganisira chip yekubvisa kuita, kurongeka kwepamusoro, kusimba kwesimba, nezvimwewo) uye hupenyu hwekushandisa. Nokudaro, mu-high-speed hard cut and finishing molds, kwete chete-high-speed machine tools inofanira kusarudzwa, asiwo maturusi ekucheka uye maitiro ekucheka anofanira kusarudzwa zvakakodzera.

Paunenge uchigadzira molds nekumhanya kwakanyanya, zvinotevera zvinhu zvinofanirwa kutariswa kune:

①Maererano neakasiyana ekugadzirisa zvinhu, zvine musoro sarudza maturusi akashongedzwa necarbide, CBN uye maturusi edhaimani.

②Small diameter bhora-end milling cutter inoshandiswa kupedzisa mold surface, kazhinji dhayamita yechishandiso chekupedzisa iri pasi pe10mm. Zvichienderana nezvinhu zvinogadziriswa uye kuoma, iyo yakasarudzwa mudziyo dhayamita yakasiyanawo. Mukusarudzwa kwezvinhu zvekushandisa, TiAIN Ultra-fine grained carbide-coated maturusi ane yakanaka lubrication mamiriro. Kana vachicheka simbi inofa, ivo vari nani kupfeka kuramba pane TiCN carbide-yakavharwa maturusi.

③Sarudza akakodzera maturusi paramita, senge negative rake angle. Yepamusoro-kumhanya machining maturusi anoda yakakwira kukanganisa kupikisa uye kupisa kutyisa kuramba pane zvakajairwa machining.

④ Tora nzira dzakasiyana siyana dzekuvandudza hupenyu hwematurusi, senge yakakodzera chiyero chekudya, nzira yekudyisa, nzira yekuzora, nezvimwe, kuderedza mutengo wemidziyo.

⑤Kushandisa high-speed tool hold. Parizvino, zvibatiso zveHSK uye maturusi ekudzvanya anopisa ndiwo anonyanya kushandiswa. Panguva imwecheteyo, kutarisisa kunofanirwa kubhadharwa kune iyo yakazara simba chiyero cheiyo spindle system mushure mekunge chishandiso chavharirwa.


Nguva yekutumira: Aug-03-2021