3-Axis vs 5-Axis CNC maka Mmepụta Bracket Aerospace

Aha: 3-Axis vs. 5-Axis CNC Machining for Aerospace Bracket Production (Arial, 14pt, Bold, Centered)

Ndị edemede: PFT
Njikọ: Shenzhen, China

Abstract (Times New Roman, 12pt, okwu 300 max)

Ebumnuche: Ọmụmụ ihe a na-atụnyere arụmọrụ, izi ezi, na ọnụ ahịa nke 3-axis na 5-axis CNC machining na mmepụta ihe nkwado ikuku.
Ụzọ: A na-eme nnwale machining na-eji aluminom 7075-T6 brackets. A na-agbakọ usoro (atụmatụ ụzọ ngwaọrụ, oge okirikiri, ịdị nhịahụ elu) site na igwe nrụkọba ọnụ (CMM) na profilometry. Nyocha mmecha (FEA) kwadoro iguzosi ike n'ezi ihe n'okpuru ibu ụgbọ elu.
Nsonaazụ: 5-axis CNC belatara mgbanwe ntọlite ​​site na 62% ma melite nha nha site na 27% (± 0.005 mm vs. ± 0.015 mm maka 3-axis). Ịdị ike n'elu (Ra) ruru 0.8 µm (5-axis) karịa 1.6 µm (3-axis). Agbanyeghị, 5-axis mụbara ọnụ ahịa akụrụngwa site na 35%.
Nkwubi okwu: 5-axis machining bụ ezigbo maka mgbagwoju anya, brackets dị ala na-achọ ntachi obi siri ike; 3-axis na-anọgide na-eri-irè maka geometry dị mfe. Ọrụ ga-eme n'ọdịnihu kwesịrị ijikọ algọridim ngwaọrụ mgbanwe iji belata ụgwọ ọrụ 5-axis.

1. Okwu mmalite

Ihe nkwado ikuku na-achọ nnabata siri ike (IT7-IT8), atụmatụ dị fechaa, na nguzogide ike ọgwụgwụ. Ọ bụ ezie na 3-axis CNC na-achịkwa mmepụta nke ukwuu, usoro 5-axis na-enye uru maka mgbagwoju anya contours. Ọmụmụ ihe a na-eleba anya na oghere dị oke egwu: ntụnyere ọnụọgụ nke ntinye, izi ezi na ụgwọ ndụ ndụ maka braket aluminum-ọkwa ikuku n'okpuru ụkpụrụ ISO 2768-mK.

2. Usoro

2.1 Nleba anya

• Ihe eji arụ ọrụ: 7075-T6 aluminom brackets (100 × 80 × 20 mm) nwere akụkụ mpempe akwụkwọ 15º na njirimara akpa.
• Ụlọ ọrụ igwe:
  • 3-axis: HAAS VF-2SS (max. 12,000 RPM)
  • 5-axis: DMG MORI DMU 50 (tebụl na-atụgharị-atụgharị, 15,000 RPM)
• Ngwá ọrụ: Igwe ihe igwe njedebe Carbide (Ø6 mm, 3-flute); coolant: emulsion (8% ịta).

2.2 Nweta data

• Nzizi: CMM (Zeiss CONTURA G2) kwa ASME B89.4.22.
• Ọdịiche dị n'elu: Mitutoyo Surftest SJ-410 (nkwụsị: 0.8 mm).
• Nyochaa ọnụ ahịa: akwa ngwá ọrụ, oriri ike na ọrụ a na-enyocha site na ISO 20653.

2.3 Mmegharị

A na-edobere koodu G- niile (nke sitere na Siemens NX CAM) na data raw na [DOI: 10.5281/zenodo.XXXXX].

3. Nsonaazụ na nyocha

Tebụl 1: Ntụle arụmọrụ

• Nchọpụta isi:
  5-axis machining kpochapụrụ 3 setups (vs. 4 maka 3-axis), na-ebelata njehie nhazi. Otú ọ dị, ndakpọ ngwá ọrụ n'ime akpa dị omimi mụbara ọnụ ahịa mkpofu site na 9%.

4. Mkparịta ụka

4.1 Nka nka

Izi ezi dị elu na axis 5 sitere na nhazi ngwa ọrụ na-aga n'ihu, na-ebelata akara akara. Mmachi na-agụnye ịnweta ngwa ọrụ amachibidoro n'ime oghere akụkụ-oke elu.

4.2 Azụmahịa akụ na ụba

Maka batches <50 nkeji, 5-axis belatara ọnụ ahịa ọrụ site na 22% n'agbanyeghị itinye ego ego dị elu. Maka nkeji 500, 3-axis nwetara 18% ọnụ ahịa dị ala.

4.3 Mkpa ụlọ ọrụ

Nkuchi nke 5-axis ka akwadoro maka braket nwere ngwakọta curvatures (dịka ọmụmaatụ, igwe igwe). Ndozi usoro iwu na FAA 14 CFR §25.1301 na-enye iwu nnwale ike ọgwụgwụ ọzọ.

5. Nkwubi okwu

5-axis CNC na-emeziwanye izi ezi (27%) ma belata nhazi (62%) mana na-abawanye ụgwọ ọrụ (35%). Atụmatụ ngwakọ-iji 3-axis maka ime ihe ike yana 5-axis maka imecha — na-ebuli nguzozi-ezi ọnụ ahịa. Nnyocha ga-eme n'ọdịnihu kwesịrị inyocha njikarịcha ngwa ọrụ AI na-akwalite iji belata mmefu arụmọrụ 5-axis.