Cov kev pab CNC machining uas muaj kev xaiv rau kev tsim mold

Thiaj li tau qhov siab rau tswv yim: qhov siab, qhov ntsuas ntawm cov ntaub, thiab qhov txaus siab

Yog dab tsi qhov siab ntawm ±0.005 mm tsis tuaj yeem txiav tawm rau tswv yim kho tshuab

Kuaj txog kev ua cov khoom plastic hauv cov tsev ua khoom thiab cov khoom sib tw yog qhov tseem ceeb heev rau qhov ntsuas ntawm microns, vim tias cov khoom plastic yuav tso cia rau qhov ntsuas tsis zoo ntawm qhov ntsuas li no. Yog tias qhov ntsuas tsis zoo dua ±0.005 mm, ces peb yuav tiv thaiv tau cov teeb meem tseem ceeb uas yuav muaj tom ntej. Xav txog cov khoom uas tawg los ntawm qhov tshuav tsis zoo rau hauv qhov ua khoom, lossis cov khoom tsis tuaj yeem sib sau rau hauv cov khoom uas muaj ntau yam khoom sib tw. Tsis zoo dua yog cov khoom uas tawg ntau heev rau hauv cov khoom uas muaj kev hloov pauv. Txoj kev kho mob thiab kev tswj hwm ntawm lub siab (aerospace) xav tau qhov ntsuas zoo dua li ±0.001 mm raws li cov lus qhia tshiab los ntawm Nolte Precise, tab sis qhov ntsuas ±0.005 mm yog qhov tsim nyog rau qhov ua khoom tshwj xeeb. Yog tias tsis tuaj yeem ntsuas zoo li no, ces qhov ntsuas ntawm cov khoom tawg yuav tshwm sim dua 12% rau hauv qhov ua khoom ntau dua. Ces yog li CNC programmers yuav tsum nrhiav xyuam txog qhov khoom yuav tshav ntau dua li thaum yuav tshav, thiab yuav tsum suav kom zoo rau qhov ntsuas ntawm cov khoom thiab qhov ntsuas ntawm cov khoom uas yuav tshav kom tau zoo rau hauv qhov ua khoom.

Kuam ntxiv rau qhov ceev thiab qhov tawg ntawm lub cev ntawm CNC milling uas muaj kev sib tw ntau

Thiab khiav cov khoom loj, qhov ceev yuav ua rau cov khoom hloov ntau dua li 15 rau 20 microns per meter, thiab qhov tawg ntawm lub cev yuav ua rau cov khoom tawm ntawm qhov tseem ceeb los ntawm 0.003 rau 0.008 mm. Los ntawm no, cov khoom tshuaj yuav siv cov txheej txheem ntau yam los pab. Cov lus qhia ceev nyob hauv lub sijhawm tseem ceeb yuav pab txo qhov tsis zoo los ntawm 70 rau 80% thaum siv raws li kev qhia. Khiav cov khoom ua ntej yuav pab txo qhov tsis zoo los ntawm 40 rau 50%. Thiab rau cov neeg uas xav tau qhov zoo heev, cov lus qhia tawg los ntawm laser yuav txo qhov tsis zoo los ntawm 60 rau 75% ntxiv. Cov khoom tshuaj zoo heev yuav siv cov txheej txheem no txhua yam rau kev khiav CNC uas muaj kev sib tw los ntawm Ra 0.4 microns. Cov lus qhia ntawm lub cim tshiab dhau los qhia tias, thaum siv cov txheej txheem no, yuav txo qhov ceev los ntawm 82% thaum khiav cov khoom H13 steel cavity machines rau 8 teev ntxiv.

Cov kev khiav CAD rau CNC uas zoo thiab txaus: Cov kev cai tseem ceeb ntawm kev khiav CNC uas zoo

Kam tsim ntawm qhov muaj fea tuag thiab qhov tswj hwm rau kev sau cov ntsiab lus thiab cov ntsiab lus rau lub cua

Software CAM ntawm hnub no muaj qhov ua haujlwm pom cov qhov chaw tseem ceeb uas tuaj yeem pom cov khoom tswv yim rau lub cev, cov kab ntsiab, thiab cov kab ntsiab uas tsis raug tshaj plij rau kev kho mob rau lub cev CAD. Thaum cov khoom tswv yim no tau pom lawm, lub software yuav siv cov kev kho mob uas tau muaj lawm los siv, tsis yog yuav tsum siv lub tshuab los kho txhua qhov kev kho mob. Thaum siv rau cov kab ntsiab uas nyuaj heev thiab cov kab ntsiab uas nyuaj heev, cov neeg siv khoom tau piav tias lawv tau txo lub sijhawm siv khoom mus rau ib leeg ntawm lub sijhawm uas tau siv los ntawm cov kev siv khoom tshiab, raws li cov lus piav ntawm Manufacturing Efficiency Journal thaum lub caij twg los. Lub system yuav siv txhua yam, los ntawm kev xaiv cov khoom kho mob uas zoo, kev xam cov qhov ntev uas yuav tsum kho, thiab kev kho cov kev kho mob uas tsis cuam tshuam rau lwm yam. Qhov uas thaum kawg tau siv cov neeg kho mob ntau dua li peb jam los kho, vim tias nws tau siv rau peb feeb xwb. Thiab vim tias txhua yam tau siv raws li cov kev siv uas tau muaj lawm, nws tsis muaj qhov cuam tshuam rau kev kho. Cov kev kho mob tau siv raws li cov kev kho mob uas muaj qhov zoo heev rau txhua yam, thiab nws muaj qhov tshwj xeeb heev thaum kev saib xyuas qhov zoo yog qhov tshwj xeeb.

Kev Tswj Hwm Ntawv Txhawb thiab Kev Txhawb Qhov Chaw Tshiab: Kev Txhawb CNC Tshem Tawm 40% Tsheb Tsis Muaj Kev Puas Tsuaj Rau Qhov Tseeb

Kev kho kom tsis txhob muaj kev tshuav ntau dua yog qhov uas txhob muaj kev tshuav kom zoo ib yam los ntawm kev tshem cov khoom tshiab thaum ua ntau dua, uas yog qhov uas txhob muaj kev tshuav kom zoo ib yam los ntawm kev tshem cov khoom tshiab thaum ua ntau dua, uas yog qhov uas txhob muaj kev tshuav kom zoo ib yam los ntawm kev tshem cov khoom tshiab thaum ua ntau dua, uas yog qhov uas txhob muaj kev tshuav kom zoo ib yam los ntawm kev tshem cov khoom tshiab thaum ua ntau dua, uas yog qhov uas txhob muaj kev tshuav kom zoo ib yam los ntawm kev tshem cov khoom tshiab thaum ua ntau dua, uas yog qhov uas txhob muaj kev tshuav kom zoo ib yam los ntawm kev tshem cov khoom tshiab thaum ua ntau dua, uas yog qhov uas txhob muaj kev tshuav kom zoo ib yam los ntawm kev tshem cov khoom tshiab thaum ua ntau dua, uas yog qhov uas txhob muaj kev tshuav kom zoo ib yam los ntawm kev tshem cov khoom tshiab thaum ua ntau dua, uas yog qhov uas txhob muaj kev tshuav kom zoo ib yam los ntawm kev tshem cov khoom tshiab thaum ua ntau dua, uas yog qhov uas txhob muaj kev tshuav kom zoo ib yam los ntawm kev tshem cov khoom tshiab thaum ua ntau dua, uas yog qhov uas txhob muaj kev tshuav kom zoo ib yam los ntawm kev tshem cov khoom tshiab thaum ua ntau dua, uas yog qhov uas txhob muaj kev tshuav kom zoo ib yam los ntawm kev tshem cov kh......

Tswv yim Tshuab Ntawv thiab Tshuab Ntawv Tshwj xeeb rau cov qhov chaw tshwj xeeb ntawm cov ntaub ntawv tshuab

5-Axis Simultaneous vs. 3+2 Positioning: Qhia kom zoo dua rau kev txhawb nqa thiab sij hawm tshuab rau cov ntaub ntawv tshuab

Thaum siv cov khoom uas muaj qhov ntev thiab cov khoom uas muaj qhov tawm ntawm qhov ntev, kev siv cov khoom sib sau 5-axis yuav zoo heev. Cov khoom yuav txhawj txog thaum siv rau tag nrho cov axis tsis tau khiav kom paub, uas pab tau lub sijhawm thiab tso cai rau kev tswj hwm qhov zoo (±0.01 mm) thaum siv rau cov kab uas nyuaj heev. Tsis tas li ntawd, kev siv 3+2 yuav kho cov axis uas rov qab ua ntej thiaj ces siv rau kev kho. Ntawd pab tau kev tswj hwm zoo dua thaum siv rau cov khoom uas nyuaj heev li H13 steel uas kev tswj hwm qhov kub yog qhov txaus siab. Yog tias kev siv cov khoom 5-axis tuaj yeem txhawj lub sijhawm siv rau cov kab uas nyuaj heev los ntawm 25-40%, tab sis tsis txhob saib qhov tseem ceeb: kev tshuaj xyuas rau cov kab uas tsoo (boxy) yuav raug dua 15% ntxiv rau kev siv 3+2. Lub tsev siv khoom ntau yuav siv ob qhov kev siv no ib zam. Lawv yuav siv kev siv 5-axis rau cov kab uas nyuaj heev, thiab siv kev siv 3+2 rau cov qhov tawm uas nyuaj heev uas xav tau kev tswj hwm zoo dua. Qhov no yog kev nrhiav qhov zoo tshaj plaws rau kev ua haujlwm ntev thiab kev tswj hwm qhov zoo rau cov khoom zoo.

Kev kho tswv yim rau cov khoom siv: Los ntawm H13 Steel Tshem Tshem mus rau Aluminum Mold Bases

Kev xaiv lub cev rau kev nqus, cov ntaub ntawv rau cov khoom siv, thiab cov kev xaiv rau kev nqus tshuaj los ntawm P20, H13, thiab Aluminum Alloys

Kev xaiv cov ntaub ntawv muaj kev cuam tshuam loj rau qhov kev siv cov cim uas tau siv thaum kho cov khoom sib sau rau hluav taws xob nrog CNC. Piv txwv li, aluminum alloy 7075 yog qhov zoo heev rau kev sib sau tshiab ntxiv rau qhov kev siv ntau dua 3,000 mm per minute nrog cov khoom ua los ntawm carbide thiab siv lub hluav taws xob ntawm qhov tsis muaj dej ua kom sov. Qhov kev siv yuav cuam tshuam ntau rau qhov sib sau nrog P20 tool steel uas muaj kev nyab xeeb ib yam. Lub hluav taws xob yuav tsum siv ntau dua 800 rau 1,200 mm per minute, thiab cov neeg siv yuav siv cov khoom sib sau uas muaj cov ntaub ntawv TiAlN coating thiab siv cov dej ua kom sov uas muaj cov ntaub ntawv ntau dua (emulsified coolants) rau kev tswj qhov ntaub ntawv nyab xeeb (work hardening). Thaum sib sau nrog H13 steel uas tau sov lawm, kev siv yuav tsum ncaj ncees ntau dua. Lub hluav taws xob yuav tsum siv ntau dua 150 rau 300 mm per minute, thiab yuav tsum siv cov khoom sib sau uas muaj cov ntaub ntawv AlCrN coating. Kev siv dej ua kom sov ntau dua (high pressure coolant) uas muaj hluav taws xob ntim rau hauv cov khoom sib sau yog qhov tseem ceeb heev—nws pab tswj qhov hluav taws xob ntau dua thiab pab tswj kev ncaj ncees ntawm cov khoom sib sau hauv cov ntaub ntawv nyab xeeb. Txoj kev no, raws li cov lus qhia ntawm Tooling Industry Report ntawm 2023, tuaj yeem pab ntxiv lub neej ntawm cov khoom sib sau ntau dua 30%. Kev tswj qhov hluav taws xob yog qhov tseem ceeb heev rau kev ua haujlwm. Yog tias cov ntaub ntawv ua kom sov tsis sib npog, nws yuav pab ntxiv kev puas tsuaj ntawm cov khoom sib sau, tias yuav tshwm sim ntau dua thaum sib sau cov qhov ntev (deep pocket milling) uas ntau cov khoom sib sau ua haujlwm.