He kipi i ka Aero-engine Blade inspection: Pehea e loaʻa ai ka 0.1μ M-level ʻekolu-dimensional Contour Ana ma nā Granite Platforms?

ʻO ka pololei o nā pahi aero engine e pili ana i ka hana holoʻokoʻa o ka mīkini, a ʻo ke ana ʻana o ka contour ʻekolu-dimensional ma ka pae 0.1μm ua lilo ia i mea koi pono hana. Paʻakikī nā paepae kuʻuna i nā kūlana. ʻO nā paepae Granite, me kā lākou mau pono nui ʻekolu, hāʻawi i ke kākoʻo hilinaʻi no ka ʻike pololei.

Hoʻokumu ka paʻa wela i ke kumu pololei. ʻO ka coefficient o ka hoʻonui wela o ka granite wale nō (4-8) ×10⁻⁶/℃, ʻoi aku ia ma mua o 60% haʻahaʻa ma mua o nā metala. Ma lalo o ka hoʻololi ʻana o ka mahana o ± 1 ℃, ʻoi aku ka liʻiliʻi o ka hoʻololi ʻana o kahi paepae 1 mika-lōʻihi ma mua o 0.008μm, hiki ke hāʻawi i kahi papa kuhikuhi mau no nā lako e like me ka laser interferometers a me nā mīkini ana ʻekolu-coordinate, e pale ana i ka hōʻiliʻili ʻana o nā hewa ana i hana ʻia e ka thermal deformation. Eia nō naʻe, hiki i kona density ke 2.6-2.8g / cm³, ʻoi aku kona ikaika compressive ma mua o 200MPa, ʻaʻahu kūʻokoʻa, a hōʻoia i ka hoʻololi ʻole ʻana o ka pololei i ka hoʻohana lōʻihi.

Kūleʻa haʻalulu maikaʻi a me ka hoʻokaʻawale ʻana i ke kaiapuni. Haʻalulu pinepine ka hale hana mokulele. ʻO ke ʻano kristal kūʻokoʻa o ka granite e hiki ai i kona damping ratio hiki i ka 0.05-0.1, ʻo ia ka 5-10 mau manawa o nā metala. Hiki iā ia ke attenuate ma mua o 90% o ka ikehu vibration i loko o 0.3 kekona. ʻO ka lawe ʻana i ke ana me ka laser tracker ma ke ʻano he laʻana, ke hui pū ʻia me kahi paepae granite, hiki ke hoʻomalu ʻia ka offset kukuna laser i loko o ± 0.02μm, e hoʻomaikaʻi nui ana i ka pololei o ke ana ʻana o nā hewa profile blade.

ʻO ka hoʻohui ʻana o ka hana pololei a me ka naʻauao e hoʻonui ai i ka pono. Ma hope o ka hana ultra-precision e like me ka magnetorheological polishing, hiki i ka palahalaha o ka paepae granite i ± 0.1μm / m, a ʻo ka roughness ʻili Ra he ≤0.02μm. Ma hope o ka hoʻohui ʻia ʻana me nā aliʻi nanoscale grating a me AI algorithms, hiki i ka helu helu hoʻokahi i ka 0.05μm, ua hoʻemi ʻia ka hewa holoʻokoʻa i ± 0.1μm, ua hoʻonui ʻia ka pono ʻike e 30%, a hiki i ka helu defect detection rate 99.9%.

ʻO nā paepae Granite, me kā lākou hana paʻa a hilinaʻi hoʻi, mālama i ke ana pololei o nā pahi aero engine, paipai i ka hoʻomaikaʻi ʻana i ka pololei o ka hana mokulele, a kōkua i ka ʻoihana e piʻi i kahi kiʻekiʻe.