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CNC machining Services china

Titanium Alloy Material Nika Basira

2020-05-16

Titanium Alloy Material Nika Basira


Machining na TC4 titanium gami yana da wahala sosai. M tsari na titanium da titanium gami ya bambanta da karfe, aluminum gami da yawa nauyi karafa cikin sharuddan crystal tsarin, jiki Properties da sinadaran Properties. Alloy karfe ne wanda ba shi da sauƙin sarrafawa.


Ƙwararrun Ƙwararrun Material Titanium Alloy-PTJ CNC MAHINING Shop
Ƙwarewar Niƙa Material Alloy Titanium. -PTJ CNC MAKASHI Shago


  • (1) Saboda rashin kwanciyar hankali da sinadaransa. TC4 titanium gami zai sha sinadaran dauki tare da oxygen da nitrogen a karkashin thermal nakasawa, kuma ko da tare da wasu oxygen-dauke da iskar gas, da dauki zai samar da oxide sikelin a haɗe zuwa workpiece surface, idan zafin jiki ne mafi girma, kai 900 ℃ A sama lokaci. ma'aunin da aka makala a saman kayan aikin zai samar da ma'auni, ta yadda iskar oxygen da abubuwan nitrogen za su iya shiga cikin karfe kuma a ƙarshe su samar da Layer getter Layer. Mafi girman taurin da ƙananan filastik sune halayen wannan Layer na getter.
  • (2) Ayyukan cimentite a cikin tsarin metallographic nasa ne na wani hadadden fili na Fe-C, kuma taurin Vickers na iya zama kamar HV1100, amma tasirin tasirin kusan babu.
  • (3) A thermal watsin ba high: idan thermal watsin da titanium gami ne idan aka kwatanta da sauran gami kamar aluminum gami, shi ne kawai game da 1/15 na cewa na aluminum gami da kuma game da 1/5 na abin da na karfe. Idan aka kwatanta da aluminum gami da karfe, thermal conductivity da thermal conductivity na titanium alloy ne da yawa m, kawai game da 1/15 na aluminum gami, da kuma game da 2/7 na karfe. Tasiri a kan ingancin machining na wasu sassan titanium gami yana da girma.

Babban matsalolin da aka fuskanta a cikin niƙan ƙarfe na titanium

  • (1) Matsalar haɗin kai na dabaran niƙa yana da tsanani. Gilashin titanium yana manne da saman dabaran niƙa, kuma shimfidar shimfidar ƙasa kamar hayaƙi ne. Babban dalili shi ne cewa kayan mannewa ya fadi yayin aikin nika. Wannan zai sa ɓangarorin ɓarna su faɗo tare da karaya, wanda a ƙarshe zai lalata dabarar niƙa sosai.
  • (2) Ƙarfin niƙa ya fi girma kuma zafin niƙa ya fi girma. A lokacin nika gwajin guda abrasive barbashi, an gano cewa a lokacin da nika titanium gami, da ya fi girma rabo ne da zamiya tsari, da kuma lamba lokaci na abrasive barbashi da workpiece ne gajere, a lokacin da sosai m gogayya da The m na roba. da kuma nakasar filastik, to, ana niƙa gami da titanium a cikin guntu, wanda ke haifar da zafi mai yawa, a wannan lokacin zafin niƙa zai iya kaiwa kusan 1500 ℃.
  • (3) Yin niƙa zai haifar da kwakwalwan kwamfuta masu laushi, babban dalili shine hadadden nakasar. Chips ɗin masu siffa mafi yawa ana samun su ne lokacin da aka yi amfani da farar corundum niƙa (WA60KV) don niƙa karfe 45, kuma ana samun nau'ikan dakakken siffa mai siffar Layer lokacin da aka yi amfani da wheel carbide grinding wheel (GC46KV) don niƙa gami da titanium.
  • (4) A karkashin yanayin zafi mai zafi, aikin sinadarai na Machining TC4 titanium Alloy ne quite aiki, kuma yana da sauki a hade tare da oxygen, nitrogen, hydrogen da sauran abubuwa a cikin iska don samar da wani tashin hankali dauki don samar da gaggautsa da wuya kamar titanium dioxide, titanium nitride, titanium hydride Metamorphic Layer, wanda take kaiwa zuwa raguwa a cikin filastik na TC4.
  • (5) A lokacin aikin niƙa na titanium gami da matsaloli masu wahala, musamman saboda zafin niƙa da aka canjawa wuri a cikin kayan aikin yana da wahala a fitar da shi, kuma kayan aikin yana da sauƙi na gurɓata, konewa, har ma da tsagewa. Saboda haka, surface na workpiece Za a yi daban-daban digiri na roughness.

Magani

Matakan murkushewa don magance konewar niƙa da fasa

Akwai wasu matsaloli a lokacin da machining TC4 titanium gami da nika ƙafafun. Matsala mafi tsanani shine mannewa. Saboda tsananin gudu, ƙarfin niƙa da zafin jiki suna da ƙarfi sosai, wanda zai ƙone saman kuma ya haifar da tsagewa. Ren Jingxin da sauransu sun yi wasu bincike na gwaji don rage irin wannan konewa da tsagewa yayin aikin injin. Suna jin cewa za a iya amfani da ƙafafun niƙa mai laushi, kamar maimakon corundum na niƙa, maimakon silicon carbide ko cerium silicon carbide ƙafafun niƙa, corundum niƙa ƙafafun Resin adhesion, yayin da na farko yana amfani da yumbu adhesion. Har ila yau kula da ci gaba CNC machining sigogi, alal misali, saurin injin niƙa bai kamata ya zama da sauri ba, gwajin gwaji bai kamata ya wuce mita 20 a sakan daya ba, zurfin niƙa bai kamata ya yi yawa ba, kuma kada ya wuce 0.02 millimeters. A cikin kowane minti daya, ruwa mai niƙa dole ne ba kawai ya watsar da zafi sosai ba, amma kuma ya jaddada tasirin sa mai, wanda zai iya shawo kan abin da ya faru na mannewa. Idan busasshen niƙa ne, ana iya sanya man shafawa da ƙaƙƙarfan mai mai daɗaɗɗen injin niƙa.

Nika abin haɗin haɗin dabaran a cikin niƙa gami da matakan hana ta

Domin a cikin nika tsari na titanium gami, za a kullum zai zama mafi girma nika zafin jiki da kuma ya fi girma al'ada karfi, don haka da cewa mai tsanani nakasar filastik zai faru a cikin titanium gami a cikin nika yankin, tsakanin abrasive da karfe The adsorption sakamako lalacewa ta hanyar. sinadarai ko sinadarai adsorption; Dalili na canja wurin karfe na ƙasa zuwa ƙwayoyin abrasive shine tasiri na karfi mai karfi, wanda ke haifar da haɗakar motsin niƙa. A ƙarshe, ɓangarorin abrasive suna karye, kuma lokacin da ƙarfin niƙa ya wuce ƙarfin dauri tsakanin ɓangarorin abrasive, ɓangarorin abrasive da haɗin gwiwa za su bare daga dabaran niƙa.

High-gudun da ingantaccen nika

Wasu malaman sun gudanar da babban sauri da ingantaccen niƙa na TC4 titanium gami kayan. A cikin binciken, ana nazarin ƙa'idar cewa ƙarfin niƙa a kowane yanki na yanki da takamaiman makamashin niƙa yana shafar adadin niƙa. Idan mizani gudu vs. na nika dabaran ƙara, da nika da karfi da naúrar yanki rage muhimmanci. Koyaya, lokacin da saurin tebur vw da zurfin niƙa p suka ƙaru, ƙarfin niƙa kowane yanki yana ƙaruwa. Idan mizani gudu vs. na nika dabaran ƙara, da takamaiman nika makamashi zai ƙara, amma idan tebur gudun vw da zurfin nika ap karuwa, da takamaiman nika makamashi zai ragu.

Shiga wannan labarin : Titanium Alloy Material Nika Basira

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