Teburan ƙirƙira na Granite sun ɗora madaidaicin bita na dutse-ba a matsayin filayen aiki ba, amma azaman dandamali masu daidaitawa inda gaskiyar juzu'i ta haɗu da halayen kayan aiki. Mun ga shagunan sun rasa 12% na yawan amfanin ƙasa daga sassauƙan tebur a ƙarƙashin nauyin gantry na CNC; wasu suna zubar da gefuna 3-4 a kowace rana saboda ɗimbin riƙewa ya gaza a mashaya 0.8. Waɗannan ba juriya ba ne na ka'idar. Asara ce ta yau da kullun da aka shiga a cikin littattafan rubutu na bene a cikin Ohio, Ontario, da Omsk.
Me yasa Granite - Ba Karfe ko Kankare ba - Nasara don Ƙirƙirar Dutse
Ƙarfin matsi na Granite ya wuce 200 MPa. Matsakaicin haɓakar haɓakar zafinta yana zaune a 0.000008/°C— ƙasa da rabin na aluminum, kashi ɗaya bisa biyar na ƙarfe mara nauyi. Lokacin da gadar CNC ke motsawa a 1.2 m/s sama da tazarar mita 3, har ma da 0.02 mm na ɗigon zafin zafi yana yanke kusurwa sama da ± 0.15° haƙuri. Mun auna wannan akan rukunin yanar gizon: motsi na yanayi na 30°C ya haifar da juzu'i na 0.07 mm a cikin tebur mai kauri mai kauri 40-amma kawai 0.013 mm a cikin gindin granite 120-mm. Wannan bambance-bambancen yana raba maimaitawar gefe da sake yin aiki.
Teburan ƙirƙira na gaske na granite suna amfani da tarkace, tubalan da ke kawar da damuwa-ba a jefar da abubuwan haɗin polymer waɗanda ke yin kama da dutse ba. Dole ne tsarin hatsi ya zama iri ɗaya, ba tare da ƙananan karaya ba da ke ƙetare jirgin sama. Muna gwada kowane slab tare da ultrasonic pulse-echo kafin yin aiki: saurin sauti a ƙasa 3,200 m/s sigina mara kyau na ciki. Tsallaka kawai da ke bugun 3,450–3,600 m/s ne ke yin jerin yanke mu na ƙarshe.
Mutuncin Vacuum yana da mahimmanci fiye da ɗanyen ƙarfin tsotsa. Teburin da aka ƙididdige don 95 kPa ba yana nufin komai ba idan tashar geometry ta zube a 70 kPa. Yarjejeniyar tabbatar da mu tana auna ƙimar lalacewa: dole ne matsa lamba ya riƙe ≥85 kPa na mintuna 10 bayan rufe duk tashar jiragen ruwa. Wannan shine mafi ƙaranci don tsayayya da juzu'i na gefe yayin haɗin gwiwar kayan aikin lu'u-lu'u.
Fasaloli Hudu Marasa Tattaunawa (Bayanai na Filin Goya baya)
Bayan nazarin wuraren ƙirƙira guda 47 a duk faɗin Arewacin Amurka da Turai, mun ƙaddamar da fasali huɗu waɗanda ke raba teburan aiki daga haƙƙi masu tsada:
Haƙuri mara nauyi ≤0.05 mm/m- an tabbatar da shi tare da filaye na gani da interferometry, ba madaidaiciya ba Haɗin T-slot Grid tare da 20-mm farar, machined zuwa ± 0.02 mm daidaiton matsayi Yankunan vacuum na zamani (mafi ƙarancin 16 a kowane tebur na 3 × 2 m), kowannensu yana da bawuloli masu zaman kansu Thermal taro stabilization: m 120 mm kauri ga tebur karkashin 4 m tsawon; 150 mm don manyan tsare-tsare Ɗaya daga cikin abokin ciniki a Wisconsin ya maye gurbin tebirin simintin ƙarfe na ƙarfe na "premium" bayan watanni shida. Su CNC na'ura mai ba da hanya tsakanin hanyoyin sadarwa ya fara zurfafa tsakiyar yanke. Daidaitawar Laser ya bayyana sag 0.18 mm a duk fadin Y-axis - wanda ya haifar da shayar da danshi yana kumburi da substrate. Granite ya kawar da wannan canjin. Yawan amfanin su na makon farko ya tashi da kashi 8.3%.
Mutuncin Abu Ba Na Zabi Ba—An Auna Shi
Botou Haijun Metal Products Co., Ltd. baya kera teburan granite. Amma muna ba da mahimman tsarin ƙarfe na ƙarfe wanda ke sa su yi: madaidaicin mashin ɗin T-slot, manifolds na bakin karfe, da firam ɗin tallafi na CNC da aka ƙera don sautin sifili a 120 Hz-mafi girman mitar mafi yawan tsaunuka.
Abubuwan da aka gyara namu suna fuskantar tabbatarwa mataki uku: takaddun shaida na albarkatun ƙasa (rahotanin gwajin niƙa don SS304/316L), binciken CMM bayan-machining (± 0.01 mm akan duk wuraren gano wuri), da hawan keke na aiki (10,000 hawan keke a 1.2 bar bambancin matsa lamba). Mun ƙi kashi 4.7% na billet masu shigowa dangane da gwajin tensile kaɗai—saboda ƙarfin da ke ƙasa da 520 MPa yana haifar da nakasu a ƙarƙashin nauyi mai nauyi.
Wasu masu ƙirƙira suna shigar da tebura kai tsaye a kan benayen siminti. Mugun tunani. Mun tattara bayanan haɓaka jujjuyawar bene a 18 Hz - wanda ya dace da mitar yanayi na yawancin tsarin gantry. Shawarar mu? Ware tare da pads neoprene (Taurin Shore A 60) kuma tabbatar da ƙaura <0.005 mm kololuwa zuwa ganiya ta amfani da Laser Doppler vibrometry.
Zaɓin Teburinku: Yi waɗannan Tambayoyi Biyar Kafin Shiga
Kafin yin oda, tambayi mai kawo kaya:
Shin za ku iya samar da taswirorin kwanciyar hankali na interferometric-ba kawai "a cikin ƙayyadaddun da'awar" ba? Menene ainihin ƙimar ɓarna a kowane yanki, wanda aka auna ta ISO 10292? Ana yin tashoshi na T-slot CNC a cikin saitin ɗaya-ko welded da ƙasa? Ta yaya kuke tabbatar da kwanciyar hankali na thermal? (Tambayi delta-T vs. zane-zane na juzu'i.) Menene mafi dadewa ci gaba da ginshiƙan da aka sarrafa akan wannan daidaitaccen tsarin tebur - kuma menene haƙurin da aka samu? Mun ga ƙididdiga sun faɗi 22% lokacin da masu siye suka buƙaci ainihin bayanai maimakon ƙasidu. Ɗaya daga cikin masu rarrabawa na Turai ya canza masu samar da kayayyaki bayan gano teburin su na "daidaici" sun yi amfani da ɓangarorin ƙwanƙwasa-bayyane a matsayin tsarin hatsi marasa daidaituwa a ƙarƙashin duban LED 100-lux.
Teburan ƙirƙira Granite ba su inganta yanke-suna kunna shi. Suna canza lambar CNC zuwa gaskiya ta zahiri. Idan aikinku na gaba yana buƙatar daidaiton gefen gefen ± 0.05 mm akan quartzite 3 cm, fara da dandamali wanda ke riƙe har yanzu yayin da komai ke motsawa. Wannan dandali yana farawa da dutsen granite, tabbataccen flatness, da rashin daidaituwa da za ku iya aunawa-ba zato ba. Don takaddun fasaha akan kayan aikin hawa masu dacewa da ƙayyadaddun ƙayyadaddun ƙayyadaddun bayanai, ziyarci https://www.haijunmetals.com.
