Self-Lubricating Tungsten Carbide Inserts for Continuous Dry Machining Operations

Content Menu

Nhanganyaya

Mainjiniya ekugadzira anogara achitsvaga nzira dzekuita machining maitiro nekukurumidza, zvakachipa, uye zvakasvibirira. Maindasitiri akaita seaerospace, mota, uye kugadzirwa kwemidziyo yekurapa inotsamira zvakanyanya pakugadzira kugadzira zvinhu zvine simba repamusoro kuita zvikamu chaizvo. Sechinyakare, zvinwiwa zvekucheka zvakashandiswa kuchengetedza maturusi kutonhorera, kuderedza kukweshera, uye kuwedzera hupenyu hwematurusi. Asi zvinwiwa izvi zvinouya nemukwende-kusvibiswa kwenharaunda, njodzi dzehutano hwevashandi, uye nzira dzinodhura dzekurasa. Ndiko uko kunoiswa kwega tungsten carbide inoiswa, ichipa nzira yemuchina wakaoma zvinhu pasina tsvina yezvinwiwa. Aya maturusi ane akavakirwa-mukati ekuzora senge calcium fluoride kana molybdenum disulfide, inobvumira kuenderera kuoma machining uku uchichengeta kupfeka uye kupisa mukutarisa. Chinyorwa ichi chinonyura mumabatiro anoita aya anoisa, mashandisirwo azvo epasirese muzvinhu zvakaita semaimplants ekurapa, jet injini zvikamu, uye zvikamu zveinjini yemotokari, uye kuti mainjiniya angazvishandise sei. Tichavhara sainzi, mienzaniso inoshanda, mutengo, uye nhanho-nhanho matipi ekubatsira zvitoro kuita shanduko.

Dry machining — kucheka pasina zvinwiwa — kuri kuwedzera sezvo makambani akatarisana nedzvinyiriro yekutema marara uye kusangana nemitemo yezvakatipoteredza. Inobvisa kudiwa kwematangi emvura, pombi, uye masisitimu ekurasa, izvo zvinogona kuchengetedza mari yakakomba uye kuderedza kutema kwemusoro. Asi pasina zvinwiwa, zvishandiso zvinotarisana nekupisa kwakanyanya uye kupokana, kunyanya kana uchicheka zvinhu zvakaita setitanium kana simbi yakaoma. Kuzvimisikidza kwega kunogadzirisa izvi nekuburitsa mafuta ekuzora ipapo panosangana nechokushandisa, kucheka kupfeka uye kuchengetedza tembiricha yakadzika. Tichitora kubva muzvidzidzo zvichangoburwa, tichaongorora maitiro aya ekuisa, kugovera mienzaniso kubva kuindasitiri, uye kupa zano rinoshanda nezvemitengo uye kuseta kubatsira mainjiniya kuwana mibairo.

Sayenzi Yekuzvizora-Lubricating Tungsten Carbide Inopinza

Tungsten carbide, inowanzo kusanganiswa necobalt, ndiyo yekuenda-kune zvinhu zvekucheka maturusi nekuti yakaoma zvakanyanya uye inogona kubata tembiricha yakakwira. Kuzvipinza kwega kwega kwemafuta kunoitora kumusoro nekuwedzera mafuta akasimba senge calcium fluoride (CaF2), molybdenum disulfide (MoS2), kana kunyange graphene mumusanganiswa. Mafuta aya anogadzira slick layer panguva yekugadzira, kucheka kukweshera uye kupisa pasina kuda donhwe remvura.

Heano mashandiro azvinoita: kana chishandiso chacheka, kupisa uye kudzvanywa panzvimbo yekubata kunoita kuti mafuta acho abude, achigadzira firimu rakatetepa, rinotsvedza. CaF2, semuenzaniso, inoramba yakagadzikana pakupisa-kusvika ku1000 ° C-ichiita kuti ive yakanaka kumabasa anorema. MoS2, ine dhizaini yayo, inotsvedza zviri nyore mumamiriro akaoma, nepo graphene inounza pamusoro-notch kupisa kupisa uye kuoma. Izvi zvivakwa zvinoita kuti zvinoiswa zvibudirire mukuoma machining, uko maturusi akajairwa anopera nekukasira kubva mukupisa nekushushikana.

Magadzirirwo Azvo

Kugadzira zvinhu izvi zvinowanzobatanidza simbi yehupfu—kusanganisa tungsten carbide, cobalt, uye mafuta epoda, kuadzvanya kuti ave maumbirwo, uye kuabika patembiricha yepamusoro kuti aite mudziyo wakasimba. Imwe nzira ndeyekupfekedza chiyero chekuisa nemafuta ekuzora uchishandisa matekiniki semakemikari vapor deposition (CVD) kana yemuviri vapor deposition (PVD). Powder metallurgy inoparadzira lubricant zvakaenzana mukati memudziyo, iyo yakanakira mabasa akaomarara, nepo machira achishanda zvirinani kune chaiwo kana akaomarara maumbirwo.

Zvidzidzo zvenguva pfupi yapfuura zvinoratidza kufambira mberi kunofadza. Rimwe bepa rakaona kuti kuwedzera 5% CaF2 kune tungsten carbide inoiswa kwakavaita kuti vasimbe uye vasinganyanyi kupfeka pakucheka AISI 1020 simbi isina mvura. Imwe ongororo yakashandisa graphene muzvinyorwa zvakaiswa, kucheka tembiricha nepamusoro pe20% uye masimba neinoda kusvika 40% pakugadzira Inconel 713C. Izvi zvakawanikwa zvinoratidza maitiro ekuzvinyudza anoisa anogona kusundira machining akaoma kusvika kumatanho matsva.

Real-World Applications

Aya anoisa ari kugadzira masaisai mumaindasitiri anoda kunyatsojeka uye kusimba. Ngatitarisei mienzaniso mitatu: maimplants ekurapa, mabladhi eturbine emuchadenga, uye zvikamu zveinjini yemotokari.

Mishonga Yezvokurapa

Machining titanium alloys seTi-6Al-4V yehudyu kana mabvi anodyara ane hunyanzvi. Izvo zvinhu zvakasimba, zvinoitisa kupisa zvisina kunaka, uye zvinoda nzvimbo yakanyatsochena kudzivirira kusvibiswa. Dry machining yakanakira kusvetuka masara emvura, asi zvakaoma pamaturusi. Kuzvipinza mumafuta ega neMoS2 kana graphene coatings kuponesa hupenyu pano. Imwe kambani yemuchina wezvokurapa inogadzira zvinhu zvechikadzi yakaona hupenyu hwemidziyo huchisvetuka ne30% ichishandisa CaF2-doped inoiswa. Iyo lubricant yakacheka kukweshera, yaichengeta tembiricha yakadzika, uye ichipa kupera kwakapfava, izvo zvakakosha kune ma implants anoda kukwana zvakakwana mumuviri.

Zano: Nezve ma implants, enda kune zvinoiswa ne 5–10% CaF2 uye ramba uchicheka kumhanya pakati pe80–120 m/min kuti uenzanise hupenyu hwematurusi nemhando yepamusoro. Tarisa maturusi kazhinji ane microscope kuti ubate kupfeka nekukurumidza, sezvo kunyangwe zvikanganiso zvidiki zvinogona kukanganisa kushivirira kwekudyara.

Aerospace Turbine Blades

Turbine blades mumajini ejeti, anowanzo gadzirwa kubva ku nickel-based superalloys seInconel 718, akaoma mushini nekuti akaoma uye anowanzo kuomesa panguva yekucheka. Kuomesa machini pasina kupisa maturusi kunonetsa. Zvinoiswa zvine mavara akashongedzwa uye graphene lubricant zvakaratidza mibairo mikuru. Mune imwe nyaya, kugadzira maInconel 718 mablades ane graphene-yakavharidzirwa anoisa akacheka maturusi ekushandisa nediki asi yakakosha 2.3% uye yakagadziridzwa kutsvedzereka kwepamusoro nepamusoro pe20%. Izvi zvaireva mashizha akasimba anogara kwenguva refu mumainjini.

Zano: Shandisa PVD-yakavharidzirwa inoisa yeturbine blades kuti uwane kunyange kufukidzwa kwemafuta pazvimiro zvakaoma. Namatira pakucheka kumhanya kwe100-150 m/min uye yakaderera feed rates (0.1 mm/rev) kudzivirira kupisa. Mushure mekugadzira, shandisa scanning electron maikorosikopu (SEM) kuona mapfekero ekutanga.

Zvemotokari Injini Zvikamu

Kune zvikamu zveinjini yemotokari senge crankshafts kana camshafts, yakagadzirwa nesimbi dzakaomeswa seAISI 4340, zvitoro zvinoda maturusi anogara uye kuchengetedza mutengo wakaderera. Kuzvizora zvinoisa neCaF2 kana MoS2 zvinobatsira nekuderedza kusakara uye kuita kuti machipisi ave nyore kubata mumamiriro akaoma. Imwe auto chirimwa ichishandisa WC-10Co-5CaF2 inoisa yakaona hupenyu hwekushandisa huchiwedzera ne25% apokutendeukaAISI 1020 simbi, ine machipisi akapfava uye kushomeka nguva kubva kune maturusi shanduko.

Zano: Sarudza inoiswa ne10-12% cobalt yekuomarara uye CaF2 yekutsvedza. Ramba uchicheka maparamendi akatsiga-toti, 100 m/min kumhanya uye 0.5 mm kudzika kwekucheka-kuitira mhedzisiro inowirirana. Tarisa chip buildup kudzivirira nzvimbo dzakashama, izvo zvinogona kukuvadza chikamu chemhando.

Kuparara Kwemari

Kuchinjira kune zvekuisa mafuta ega kunodhura kumberi asi kunobhadhara nekufamba kwenguva. Heino kupatsanurwa:

Tool Costs: Aya anoisa anomhanya 20-30% mutengo pane akajairwa. Kuiswa kweWC-10Co-5CaF2 kunogona kuita $15–$20 imwe neimwe, maringe ne$10–$12 painoiswa nguva dzose.
Equipment: Dry machining haidi masisitimu emvura, saka mari yekuseta yakaderera. Asi kukwidziridza kune chaiwo CNC michina yezvakanakisa mhedzisiro inogona kumhanya madhora zviuru makumi mashanu– $100,000.
Chishandiso Chekuchengetedza Hupenyu: Izvi zvinoiswa zvinogara 20-50% kureba, zvichideredza pane zvinotsiva. Chitoro chekudyara chekurapa chakachengetedza $10,000 pagore nekudonhedza maturusi shanduko kubva pagumi kusvika pa6 pamwedzi.
Kuchengetedza Kwezvakatipoteredza: Kusvetuka zvinwiwa zvinochengetedza $5,000–$20,000 pagore pakutenga, kuchengeta, nokurasa, zvichienderana nekukura kwechitoro.

Mune imwe chitoro chinogadzirwa neaerospace Inconel 718, graphene-yakavharidzirwa inoisa inocheka mitengo yese ne15% nekuda kwehupenyu hurefu hwematurusi uye kushomeka kwesimba rekushandisa. Chirimwa chemotokari chakachengetedza 10% pamitengo yekugadzira neCaF2 kuisa, kudzoreredza mutengo wepamusoro wekushandisa mumwedzi mitanhatu.

Zano: Ita ongororo yemutengo-bhenefiti, kuisa mukati mehupenyu hwematurusi, huwandu hwekugadzira, uye kuchengetedza kwemvura. Edzai kuisa pamwero mudiki kutanga kuti musimbise mari yasara musati mapinda zvese.

Matanho Ekutanga

Heano maitiro ekuunza ega ekuzora muchitoro chako:

Sarudza Nyowani Inopinza: Batanidza wedzero yacho nemashoko ako. Shandisa MoS2 kana graphene yetitanium, CaF2 yesimbi. Taura nevashambadzi pamusoro pemaitiro akasanganiswa.
Gadzirisa Machina: Calibrate CNC michina yekuomesa machining. Vavarira kumhanya kwe100–150 m/min, mafeed e0.1–0.2 mm/rev, uye kudzika kwe0.5–1 mm.
Isa Zvishandiso: Mount anoisa zvakachengeteka mune zvibatiso kuti udzivise vibration. Shandisa torque wrench kudzivirira kutsemuka kubva pakuomesa zvakanyanya.
Run Tests: Tanga nemabheti madiki kuti udaye muzvirongwa. Tarisa maturusi anopfeka, kupera kwepamusoro, uye chip chimiro uchishandisa maturusi akaita seSEM kana profilometers.
Monitor Live: Shandisa masensa kuti utarise masimba ekucheka uye tembiricha panguva yekumhanya. Tweak marongero kana zvinhu zvikapisa zvakanyanya kana kupfeka maspikes.
Ongorora Nguva Dzose: Tarisa zvakaiswa neoptical microscopes kuti zvisakara. Zvichinjise kana zvipfeko zveflank zvarova 0.3 mm kuti zvichengetedze mhando yepamusoro.
Scale Up: Kana bvunzo dzangotaridzika zvakanaka, buritsa kune yakazara kugadzirwa. Dzidzisa timu yako pane yakaoma machining kuti zvinhu zvifambe zvakanaka.

Zano: Edzai pamushini mumwe kutanga, kuteedzera metrics senge hupenyu hwechishandiso uye kupera kwepamusoro. Shandisa iyo data kunyatso-tuna usati wawedzera kune mamwe machina.

Matambudziko uye Magadzirirwo

Kuisa mafuta ega hazvina kukwana. Mutengo wepamusoro wepamberi unogona kurwadza, asi kuchengetwa kwehupenyu hwezvishandiso uye mutengo wemvura zvinowanzozviitira. Imwe nyaya ndeyekuwana iyo lubricant huwandu zvakanaka-yakawandisa inonetesa chishandiso, ishoma haizodze zvakakwana. Zvidzidzo zvinoratidza kuti 5-10% lubricant inorova nzvimbo inotapira. Mabasa ekupisa kwepamusoro, sekucheka Inconel, anogona kuderedza mamwe mafuta. Kushandisa izvo zvinodzivirira kupisa seCaF2 kana kusanganisa mafuta ekuzora (semuenzaniso, MoS2 uye graphene) zvinobatsira.

Zano: Shanda nenyanzvi dzezvinhu kugadzira masanganiswa emafuta emabasa ako. Dzidzisa vashandi nguva dzose kubata zvinoiswa nemazvo uye kuwana zvakanyanya kubva mazviri.

Mhedziso

Self-lubricating tungsten carbide inoisa iri kushandura mutambo wekuoma machining. Nekuisa mafuta ekuzora seCaF2, MoS2, kana graphene, vanocheka kupokana, kuwedzera hupenyu hwezvishandiso, uye kuendesa zvirinani mumaindasitiri akaita sekurapa, aerospace, uye mota. Kubva patitanium implants kusvika kune jet engine blades kusvika kumota crankshafts, maturusi aya anoratidza kukosha kwazvo mukushandisa kwakasimba. Mari yekutanga yakakwira, asi kuchengetedza kubva kuhupenyu hurefu hwematurusi, kushomeka nguva, uye pasina zvinwiwa zvinovaita kubheja kwakanaka. Neurongwa hwakajeka—kunhonga chinoisa chakakodzera, kuseta michina, uye kuedza nokungwarira—zvitoro zvinogona kutarisana nezvinetso uye kuona zvikomborero chaizvoizvo. Sezvo kugadzira kuchisunda nzira dzakasvibira, dzakanyatsojeka, izvi zvinoiswa zvinoiswa kuti zvive chinhu chikuru muzvitoro zvemazuva ano.

Q&A

Q1: Chii chinoisa self-lubricating tungsten carbide inoisa kunze kune yakajairwa?
A1: Vakavaka-mumafuta akasimba seCaF2 kana MoS2, ayo anoderedza kukweshera uye kupfeka panguva yakaoma machining, kubvisa kudiwa kwemvura inotonhorera.

Q2: Izvi zvinopinza zvinogona kubata chero chinhu?
A2: Yakanakira zvinhu zvakaoma setitanium, nickel alloys, uye simbi dzakaomeswa. Sarudza lubricant inoenderana nechinhu kuti uwane mhedzisiro yakanaka.

Q3: Ndinopembedza sei mari yekuwedzera?
A3: Tarisa maturusi anowanikwa muhupenyu (20–50%), kushomeka kwenguva, uye kuchengetwa kwemutengo wemvura. Zvidiki-zviyedzo zvinogona kuratidza kana mari yacho ichibhadhara kuchitoro chako.

Q4: Chii chingakanganisika nekuisa izvi?
A4: Chipping kana kupfeka kunogona kuitika, kunyanya pakumhanya kukuru. Gadzirisa kumhanya (100-150 m/min) uye shandisa mafuta anodzivirira kupisa seCaF2 kuderedza njodzi.

Q5: Ini ndinochengeta sei mashandiro ekuita mukuoma machining?
A5: Shandisa masensa kune chaiyo-nguva simba uye tembiricha data. Ongorora maturusi epashure-muchina nemamicroscopes kana SEM kubata kupfeka uye kugadzirisa marongero.

References

Kuongororwa kwekuita kwe tungsten carbide-based self-lubricant yekucheka chishandiso
Muthuraja, P., Senthilvelan, T.
Nyaya yeEngineering Manufacture, 2016
Zvitsva Zvakawanikwa: WC-10Co-5CaF₂ inoiswa yakaratidza yakagadziridzwa antifriction uye kupfeka kuramba zvichienzaniswa neyakajairika WC-10Co.
Methodology: Hupfu simbi yekugadzira uye yekucheka bvunzo.
Citation: Muthuraja and Senthilvelan, 2016, mapeji 1375–1394
https://www.semanticscholar.org/paper/Performance-evaluation-of-a-tungsten-carbide%E2%80%93based-Muthuraja-Senthilvelan/655246ce2f57b1e9e607c7343820b6ff30c65388
Sustainable Dry Machining yeStainless Simbi ine Microwave-Yakagadziriswa Tungsten Carbide Kucheka Zvishandiso
Babe, IB, Gupta, K., Chaubey, SK
Micromachines, 2023
Zvitsva Zvakawanikwa: Kurapwa kweMicrowave kwakakwidziridza kuomarara uye microstructure, kuderedza kupfeka kwechishandiso uye kunatsiridza kupera kwepamusoro mukushanduka kwakaoma kweSS 316.
Methodology: Taguchi L9 orthogonal array dhizaini, multiperformance optimization, SEM kuongororwa.
Citation: Babe et al., 2023, mapeji 1148
https://doi.org/10.3390/mi14061148
Kugadzirisa Kuita kweMachining eCNC Tool Insets Yakaputirwa neDiamond-SeCarbon Coatings pasi peDry Cutting Environment.
Rana, R., Krishnia, L., Murtaza, Q., Walia, RS
Journal of Engineering Research, 2021
Zvitsva Zvakawanikwa: DLC machira akawedzera kuomarara ne53%, yakagadziridzwa kupfeka kuramba uye kupera kwepamusoro mumamiriro akaoma machining.
Methodology: Thermal CVD coating uchishandisa nzimbe bagasse, Raman spectroscopy, XRD, SEM, TOPSIS optimization.
Citation: Rana et al., 2021, mapeji 142–152
https://pdfs.semanticscholar.org/a610/52ce2a3de80013863263c6e88cb6c1b93699.pdf
- Tungsten carbide
- Dry Machining