Wimhyɛn a wɔde si fam honing ano aduru

Sɛ́ adesoa-adesoa a ɛho hia wɔ wimhyɛn mu no, afiri a wɔde si fam no hwehwɛ sɛ wɔyɛ no pɛpɛɛpɛ a ɛkorɔn yiye, ne soro yɛ papa, na ɛtra hɔ kyɛ. Honing nhyehyɛe no di dwuma titiriw wɔ eyi mu, titiriw na ɛyɛ adwuma sɛ adeyɛ a etwa to a wɔde wie ntokuru a ɛwɔ landing gear actuators mu, titiriw ma shock struts ne breki actuators a ɛwɔ landing gear titiriw no mu.

Adwumayɛfoɔ wimhyɛn a wɔde si fam honing ano aduru, a ɛka nnwinnadeɛ, akwan, su pa sohwɛ, ne mfiridwuma a ɛyɛ foforɔ-ɛka ho.

Botae: Sɛ wobenya geometric pɛpɛɛpɛ a ɛkorɔn yiye wɔ mu tokuru no mu (kurukuruwa, cylindricity), soro roughness a eye kyɛn so (mpɛn pii no Ra < 0.2 μm, anaa mpo ɛba fam), soro texture pɔtee (ɛyɛ papa ma ngo akorae ne nsɔano), ne mfomso-free machined surface layer.

Ko tia:

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2. Pɛpɛɛpɛ ahwehwɛde a ɛyɛ katee: Wɔtaa hwehwɛ sɛ ɛyɛ kurukuruwa ne cylindricity sɛ ɛwɔ micrometer level, a ɛwɔ dimensional tolerances a ɛyɛ katee.

3. Tokuru nketewa a emu dɔ: Actuator cylinders taa wɔ ntokuru a emu dɔ (a ne fã kɛse yɛ kɛse), na ɛma honing yɛ den.

4. Nneɛma a ɛwɔ soro no mudi mu kura: Ɛsɛ sɛ wɔkwati ɔhyew, mpaapaemu nketenkete, ne tensile stress a aka, efisɛ ebetumi aka ɔbrɛ asetra kɛse.

1. Mfiri titiriw a wɔde yɛ honing

Vertical deep-hole honing machine: Ɛfata paa ma tubular components atenten te sɛ landing gear actuators. Ɛda spindle a ɛkorɔn-rigidity, high-precision spindle ne akwankyerɛ nhyehyɛe adi.

Nsiesiei titiriw:

• High-precision servo control system: Ɛnya reciprocating motion a ɛyɛ pɛpɛɛpɛ, ahoɔhare sohwɛ, ne nhyɛsoɔ sohwɛ.
• Online dimensional susudua ne feedback nhyehyɛe: Real-bere hwɛ tokuru diameter, a wonya closed-loop control de hwɛ hu sɛ dimensional pɛpɛɛpɛ.
• Thermostatic coolant system: Ɛyi ɔhyew ne chips fi hɔ yiye, ɛhwɛ machining temperature so, na ɛhwɛ hu sɛ asase ani yɛ papa.
• Adaptive honing head: Ebetumi atua ɔbo a wɔde yam no asɛe no ho ka ankasa, na ama tumi a ɛtwa no agyina pintinn.
• Seismic-resistant mpa ne precision guide rail: Hwɛ sɛ mfiri a wɔde yɛ adwuma no gyina pintinn.

2. Honing nnwinnade ne abrasives

Honing head: Sɛ wode-feed biako anaa multi-point feed honing head di dwuma a, ɛma ntrɛwmu ne ntrɛwmu a ɛyɛ pɛ wɔ ntokuru a emu dɔ mu, na ɛnam so kwati taper.

Ɔbo a wɔde yɛ honing (oilstone): .

• Honing a ɛyɛ mmerɛw: Paw coarse-grained (te sɛ 120-180) cubic boron nitride (CBN) anaa diamond grinding strips. CBN/diamond wɔ denden a ɛkorɔn yiye, ɛyɛ den-resistant, na ɛwɔ nkwa tenten, na ɛma ɛfata titiriw ma dade a ɛyɛ den kɛse ho adwuma.
• Fine Honing: Paw fine-grained (te sɛ 400-800 anaa nea ɛboro saa) CBN/diamond anaasɛ high-quality ceramic bond corundum grinding strips na ama woanya nea etwa to a ɛfa soro roughness ahwehwɛde ahorow.
• Ultra-fine honing/platform honing: Sɛ ɛde platform honing bars soronko di dwuma a, ɛma cross-hatch patterns a eye ne oil storage platforms, na ɛma sealing adwumayɛ ne wear resistance yɛ kɛse.
• Honing rod: High rigidity, a emu onwini nsu kwan.

3. Process parameters ne akwan a wɔfa so yɛ adwuma

Adeyɛ nkɔnsɔnkɔnsɔn a wɔtaa yɛ ne: rough boring/reaming → ɔhyew ayaresa (quenching, tempering) → wie grinding/honing → awiei honing/platform honing.

Honing stage:

• Rough honing: Yi nneɛma a aka no fi adeyɛ a atwam no mu (0.05-0.15mm) na teɛteɛ geometric nsusuwii no. Fa ahoɔhare a ɛkorɔn a wɔde twa ne nhyɛso a ɛkɔ fam tom.
• Semi-finishing/finishing: Sɛnea ɛbɛyɛ a wɔbɛma nsusuwii no ayɛ pɛpɛɛpɛ bio na wɔatew roughness so no, wɔde ahoɔhare ne nhyɛso a ɛkɔ fam di dwuma.
• Honing/platform honing a etwa to: Adeyɛ titiriw. Ɛde ultra-fine abrasive particles ne akwan titiriw di dwuma, ɛma cross angle ne platform no ani a wɔpɛ.
• Cross angle control: Wɔnam spindle ahoɔhare ne reciprocating ahoɔhare a wɔma ɛyɛ papa so. Mpɛn pii no, mmeamudua no anim fi digrii 40 kosi digrii 60 , a mfaso wɔ so ma ngo a wɔkora so ne nkwa nna a nneɛma a wɔde kata so no di dwuma.
• Platform formation: Ɛdenam grinding ne ironing a ɛyɛ pɛpɛɛpɛ so no, wɔma net pattern no atifi yɛ mmerɛw, na ɛyɛ "platform" a ɛyɛ tratraa a ɛtew friction so na ɛma pressure-bearing tumi yɛ kɛse.

4. Srade a ɛma onwini (ngo a ɛma ɛyɛ mmerɛw) .

• Ahwehwɛde: onwini adwumayɛ a ɛkyɛn so, srade, ahotew (chip a woyi), nwura a ɛko tia, ne foam a ɛba fam.
• Type: Fa high-performance synthetic anaa semi{1}}synthetic honing ngo di dwuma, a ne viscosity ne additive formulation a wɔapaw sɛnea ade ne adeyɛ fã.

5. Nneɛma pa a wɔhwɛ so ne nhwehwɛmu

Online detection: Afiri no ka pneumatic anaa inductive sensors bom de hwɛ tokuru no ntwemu wɔ real-bere mu.

Offline nhwehwɛmu a etwa to:

• Ne kɛse ne ne nsusuwii: Fa high-precision pneumatic micrometer, abiɛsa{1}}point internal micrometer anaa coordinate susuw afiri di dwuma de susuw tokuru no kɛse, kurukuruwa, ne cylindricity.
• Surface roughness: Sua parameters te sɛ Ra, Rz, Rpk, Rvk, Rk, ne nea ɛkeka ho, denam portable roughness tester anaa white light interferometer so, titiriw de hwɛ surface su ahorow bere a woayɛ honing platform no awie no.
• Mfomsoɔ a ɛwɔ soro: Fa fluorescent penetrant testing anaa magnetic particle testing (ma magnetic materials) hwɛ sɛ microcracks wɔ hɔ anaa.
• Surface stress: Wobetumi de X-ray diffraction kwan adi dwuma de ahu residual compressive stress (mfaso wɔ so).

Adaptive intelligent honing: Egyina real-bere monitoring denam ahoɔden ne acoustic emission sensors so, ɛsakra parameters no ankasa de di nneɛma a ɛnyɛ pɛ ho dwuma na esiw ɔhyew ano.

"Green" honing technology: Wɔde srade kakraa bi anaasɛ nwini foforo a ɛnyɛ nea ɛfata abɔde a nkwa wom bedi dwuma de atew nsu a wɔtow gu ho ka so.

Digitalization ne Process Monitoring: Fa manufacturing execution system bom de kyerɛw honing parameters no wɔ process no nyinaa mu wɔ ɔfa biara mu, na ɛma wotumi traceability koraa na wodi aviation quality systems te sɛ AS9100 ne NADCAP ahwehwɛde ahorow ho dwuma.

Simulation ne optimization: Fa finite element analysis di dwuma de simula thermal-mfiri coupling nsunsuanso wɔ honing nhyehyɛe no mu, optimize parameters, na tew dodow a sɔhwɛ cuts.

Wimhyɛn a wɔde si fam honing ano aduru a eye kyɛn so ne nhyehyɛe a wɔde nneɛma a edidi so yi ka bom:

1. High-rigidity, nyansa ahofama honing mfiri ne fapem.

2. CBN / diamond grinding nnwinnade optimized ma nneɛma su (a ɛkorɔn - ahoɔden dade / titanium alloy) yɛ ade titiriw.

3. Pɛpɛɛpɛ a wɔahyɛ so platform honing nhyehyɛe ne ade titiriw a ɛma wonya high-adwumayɛ surfaces.

4. Nneɛma a ɛkɔ akyiri, multi-parameter quality control ne data traceability ne awerɛhyɛmu a ɛbɛma wɔadi wimhyɛn gyinapɛn a ɛyɛ den no so.

5. Mfiridwumayɛfo ne wɔn a wɔyɛ adwuma a wɔn ho akokwaw ne nneɛma a ɛho hia kɛse a ɛbɛma wɔanya nneɛma pii a ɛyɛ den.