ʻO nā papa hana Granite heleuma i nā papa hana pōhaku pololei—ʻaʻole ma ke ʻano he papa hana passive, akā ma ke ʻano he mau kahua calibrated kahi e hui ai ka ʻoiaʻiʻo nui i nā ʻano waiwai. Ua ʻike mākou i nā hale kūʻai i nalowale i ka 12% o ka hua pāpaʻi mai ka flex papa ma lalo o nā ukana gantry CNC; ʻO nā ʻaoʻao ʻē aʻe e ʻoki i 3-4 mau ʻaoʻao i kēlā me kēia lā no ka mea ʻaʻole i hāʻule ka paʻa ʻana o ka momi ma 0.8 bar. ʻAʻole kēia he mau manaʻo hoʻomanawanui. ʻO nā poho i kēlā me kēia lā i hoʻopaʻa ʻia i loko o nā puke papa hale kūʻai ma waena o Ohio, Ontario, a me Omsk.
No ke aha ka Granite—ʻAʻole ke kila a i ʻole ka Paʻa—I lanakila no ka hana pōhaku
ʻOi aku ka ikaika compressive o Granite ma mua o 200 MPa. Aia kona heluna hoʻonui wela ma 0.000008/°C—emi iho ma mua o ka hapalua o ka alumini, hoʻokahi hapalima o ke kila māmā. I ka neʻe ʻana o kahi alahaka CNC ma 1.2 m/s ma luna o kahi 3-mika, ʻo ka 0.02 mm o ka thermal drift e hoʻoneʻe i nā kihi ma mua o ± 0.15° ka hoʻomanawanui. Ua ana mākou i kēia ma ka pūnaewele: he 30°C ambient swing i hoʻohuli ʻia he 0.07 mm i loko o kahi pākaukau kila 40-mm-akā, he 0.013 mm wale nō i loko o kahi kumu granite 120-mm. Hoʻokaʻawale kēlā ʻokoʻa i ka hana hou ʻana mai ka hana hou.
Hoʻohana ʻia nā papa hana pōhaku pōhaku maoli i nā poloka i ʻeli ʻia, hoʻomaha i ke kaumaha - ʻaʻole i hoʻolei ʻia i ka polymer composites e hoʻopololei ana me he pōhaku lā. Pono ke ʻano o ka palaoa, me ka ʻole o nā micro-fractures e hele ana ma ka ʻili. Hoʻāʻo mākou i kēlā me kēia papa me ka ultrasonic pulse-echo ma mua o ka hana ʻana: ʻo ka wikiwiki o ke kani ma lalo o 3,200 m/s hōʻailona i nā puka o loko. ʻO nā pāpaʻi wale nō e pā ana i ka 3,450–3,600 m/s e hana i kā mākou papa inoa ʻoki hope.
ʻOi aku ka nui o ka pono o ka vacuum ma mua o ka mana suction maka. He mea ʻole ka papa i helu ʻia no 95 kPa inā e kahe ka geometry channel ma 70 kPa. ʻO kā mākou palapala hōʻoia e ana i ka nui o ka pohō: pono e paʻa ke kaomi ≥85 kPa no 10 mau minuke ma hope o ka hoʻopaʻa ʻana i nā awa āpau. ʻO ia ka mea liʻiliʻi e pale aku i ka ʻāʻī ʻaoʻao i ka wā e hoʻopili ai i nā mea hana daimana.
ʻEhā mau hiʻohiʻona hiki ʻole ke kūʻai aku (Kākua ʻia e ka ʻikepili kahua)
Ma hope o ka loiloi ʻana i nā hale hana 47 ma ʻAmelika ʻĀkau a me ʻEulopa, ua hoʻokaʻawale mākou i ʻehā mau hiʻohiʻona e hoʻokaʻawale i nā papa hana mai nā aie kumu kūʻai:
ʻO ka hoʻomanawanui palahalaha ≤0.05 mm/m—hōʻoia ʻia me nā palahalaha opitika a me ka interferometry, ʻaʻole nā ʻaoʻao pololei Māhele T-slot i hoʻohui ʻia me 20-mm pitch, mīkini ʻia i ± 0.02 mm pololei kūlana Nā ʻāpana ʻūhā modular (ka liʻiliʻi 16 no 3 × 2 m papaʻaina), kēlā me kēia me nā pahu kaʻawale kūʻokoʻa ʻO ka hoʻopaʻa ʻana i ka wela wela: ka palena iki 120 mm mānoanoa no nā papa ma lalo o 4 m lōʻihi; 150 mm no nā ʻano nui Ua hoʻololi kekahi mea kūʻai ma Wisconsin i kahi papaʻaina i hoʻoikaika ʻia i ke kila ma hope o ʻeono mahina. Ua hoʻomaka ko lākou CNC router e neʻe i waena o ka ʻoki. Ua hōʻike ʻia ka alignment laser i ka 0.18 mm sag ma o ka Y-axis—ma muli o ka hoʻohū ʻana o ka wai i ka substrate. Ua kāpae ʻo Granite i kēlā ʻano hoʻololi. Ua lele ka hua o ka pule mua i ka 8.3%.
ʻAʻole koho ʻia ka Pono Pono—Ua ana ʻia
ʻAʻole hana ʻo Botou Haijun Metal Products Co., Ltd. i nā papa pōhaku pōhaku. Akā, hāʻawi mākou i nā subsystem metala koʻikoʻi e hoʻokō ai iā lākou: nā mea hoʻokomo T-slot i hana ʻia me ka pololei, nā manifolds ʻūhā kila kila, a me nā papa kākoʻo CNC-piʻo i ʻenekinia ʻia no ka resonance ʻole ma 120 Hz—ke alapine nui o ka hapa nui o nā ʻili pōhaku.
Hoʻopaʻa ʻia kā mākou mau ʻāpana i ka hōʻoia ʻekolu: ka palapala hōʻoia maka (nā hōʻike hōʻike wili no SS304/316L), ka nānā ʻana i ka CMM ma hope o ka mīkini (± 0.01 mm ma nā ʻaoʻao ʻē aʻe), a me ke kaʻa uila hana (10,000 mau pōkā ma 1.2 bar differential pressure). Hōʻole mākou i ka 4.7% o nā bila e hiki mai ana ma muli o ka hoʻāʻo tensile wale nō - no ka mea, ʻo ka ikaika o ka hāʻawi ʻana ma lalo o 520 MPa hiki ke hoʻololi ʻia ma lalo o nā ukana pipili.
Hoʻokomo pololei kekahi poʻe mea hana i nā papaʻaina ma nā papahele sika. Manaʻo ʻino. Ua kākau mākou i ka hoʻololi ʻana i ka haʻalulu o ka papahele e hoʻonui ana ma 18 Hz—e like me ke alapine maoli o nā ʻōnaehana gantry he nui. ʻO kā mākou manaʻo? E hoʻokaʻawale me nā pad neoprene (Shore A 60 hardness) a hōʻoia i ka neʻe ʻana <0.005 mm peak-to-peak me ka laser Doppler vibrometry.
Ke koho ʻana i kāu pākaukau: E nīnau i kēia mau nīnau ʻelima ma mua o ke kau inoa ʻana
Ma mua o ke kauoha ʻana, e nīnau i kāu mea hoʻolako:
Hiki iā ʻoe ke hāʻawi i nā palapala ʻāina interferometric flatness—ʻaʻole wale i nā koi "i loko o nā kikoʻī"? He aha ka nui o ka hoʻoheheʻe ʻana o ka vacuum ma kēlā me kēia wahi, i ana ʻia no ISO 10292? Ua hoʻohana ʻia nā kahawai T-slot CNC i hoʻokahi hoʻonohonoho-a i ʻole welded a lepo? Pehea ʻoe e hōʻoia ai i ke kūpaʻa wela? (E noi i nā kaha kiʻi delta-T vs. ʻili.) He aha ka papa hoʻomau lōʻihi i hana ʻia ma kēia hoʻonohonoho papaʻaina pololei-a he aha ka mea i hoʻokō ʻia ai ka ʻae ʻana? Ua ʻike mākou i ka hāʻule ʻana o nā huaʻōlelo i ka 22% i ka wā i koi ai nā mea kūʻai aku i ka ʻikepili maoli ma mua o nā brochures. Ua hoʻololi kekahi mea hoʻolaha ʻEulopa i nā mea hoʻolako ma hope o ka ʻike ʻana i kā lākou papa ʻaina "pololei" i hoʻohana i nā ʻoki ʻokiʻoki i hoʻōla ʻia - ʻike ʻia e like me nā ʻano huapalaoa like ʻole ma lalo o ka nānā ʻana o 100-lux LED.
ʻAʻole hoʻomaikaʻi nā papa hana Granite i ka ʻokiʻoki - hiki iā lākou ke hana. Hoʻololi lākou i ka code CNC i ʻoiaʻiʻo kino. Inā koi kāu hana aʻe i ka ± 0.05 mm e like me ka quartzite 3 knm, e hoʻomaka me ka paepae e paʻa i ka wā e neʻe ai nā mea a pau. Hoʻomaka kēlā paepae me ka granite, ka palahalaha i hōʻoia ʻia, a me ka pono o ka vacuum hiki iā ʻoe ke ana-ʻaʻole manaʻo. No ka palapala ʻenehana e pili ana i nā lako hoʻokomo kūpono a me nā kikoʻī o ka ʻaoʻao ʻawaʻawa, e kipa https://www.haijunmetals.com.
