Kusintha Ma Machined Bar Stock ndi Investment Castings mu Hand Surgical Instruments

1. Mwambo wa "makina-kuchokera ku bar" mu zida zamanja

Zida zopangira opaleshoni pamanja zadulidwa kuchokera ku 17-4 PH, 440C ndi AISI 316 bar stock kuyambira kalekale kutulutsa ndalama kusanachitike kunali njira yayikulu yopangira zida zachipatala. Mwambowu ukupitilira chifukwa:

• Bar stock ili ndi zida zodziwika bwino zamakina zomwe mainjiniya amamasuka kuzifotokoza.
• Makina a CNC a 5-axis amagwira ma undercuts ndi ma radii omwe geometry ya chida chamanja nthawi zambiri imafunikira.
• Chitsulo chimodzi chimatha kupanga magawo ambiri pagawo lililonse ndikukhazikitsa kwakanthawi kochepa.
• Zipatala ndi magulu ogula zinthu amasamala za kusintha kwa zida zomwe zimapita m'thupi.

Mwambo umenewo tsopano uli pansi pa chitsenderezo chenicheni. Njira ya bar-stock imawononga 60-80% ya zinthu zomwe zagulidwa ngati tchipisi, zimafunikira mphindi 20 mpaka 40 za nthawi yozungulira pagawo lililonse pamakina a 5-axis, ndipo zimapanga mawonekedwe - monga zitoliro zophatikizika, zitoliro zamkati zamasika, mawonekedwe a claw-axis - zomwe zimatheka mwamakina koma zopweteka zachuma. Pamene ogula akuyang'ana kutsika kwa mtengo wamtengo wapatali pamaso pa kukwera mtengo kwa ogwira ntchito ku Ulaya / US ndi mphamvu zamagetsi, nkhani yosinthira kuyika ndalama ikumveka bwino.

2. Kumene kuponya ndalama kumapambana - zitsanzo zisanu zodziwika bwino

3. Malamulo opangira - chomwe chimapangitsa chida kuti chisasunthike

Njira yopangira ndalama ili ndi malamulo. Ngati kujambula kwanu kukuphwanya, mumalipira mu nkhungu, muzitsulo zotayidwa, kapena mu nthawi ya post-machining yomwe imachotsa kupulumutsa kwa nthawi. Zomwe zili zofunika kwambiri pazida zamanja:

• Makulidwe a khoma : cholinga cha 1.2 - 3.0 mm makoma a uniform. Pansi pa 1.0 mm mumakhala pachiwopsezo cholakwika; Pamwamba pa 4 mm mumalipira nthawi yochulukirapo ndipo mungafunike kuziziritsa nthawi yayitali kuti mupewe kuchepa kwa porosity.
• Radii : 1.0 mm osachepera pamakona amkati. Makona akuthwa amapangitsa kuti pakhale kupsinjika muzojambula zonse ndi gawo lomaliza - zimapanganso kupsinjika mumtundu wa sera ndikufupikitsa moyo wa nkhungu.
• Ma angles okonzekera : 0.5-1.0 ° pa nkhope yojambula. Sera imayenera kutuluka bwino mu ufa; kulolerana kolimba pachojambula ndi zero kumatanthauza zida zodula kapena zidutswa.
• Maonekedwe : Mawonekedwe a as-cast ndi osalala mokwanira pazinthu zambiri zopanda chogwirira, koma ngati kapangidwe kake kakufuna kugwedezeka, kuyenera kufotokozedwa ngati kuponyedwa mkati, osati knurl yopangidwa ndi post-machine (kupanda apo, knurl imatha mu autoclave).
• Zocheperapo : zotheka popanga ndalama koma zimakankhira zovuta za nkhungu ndipo sera iliyonse imakwera mtengo. Osawonjeza-odulidwa pokhapokha ngati mapangidwe akuwafuna.
• Mabowo olowa : kusiya 0.4 - 0.6 mamilimita machining allowance pamalo aliwonse omwe angafunikire kulumikiza gawo lina. Kuponya sikulowa m'malo mobowotsa pamlingo wokwanira.

Lamulo lothandiza ndikutumiza zojambulazo kumalo oyambira msanga momwe mungathere , ngakhale mapangidwe anu amkati asanazime. Gawo la ndemanga za DFM ndi malo otsika mtengo kwambiri opezera zosintha zazing'ono zomwe zimatembenuza ocheperako kukhala opindulitsa.

4. Pamene OSATI kutembenuza gawo kuti ndalama kuponyera

Nthawi zingapo pomwe kutembenuza koponya kumakhala kolakwika:

• Voliyumu pansipa ~ zidutswa 500/chaka : Kuchepetsa mtengo wa zida sikugwira ntchito, ndipo zida za sera zosindikizidwa za 3D nthawi zambiri zimakhala zokwera mtengo pachidutswa chilichonse kuposa makina opangira pa voliyumuyo.
• Tizigawo ting'onoting'ono tolimba (pansi pa ~ 10 g) kumene malamulo a makulidwe a khoma ndi ovuta kumvera : thupi loyendetsa singano, tsamba limodzi la scalpel. Machining bar apambana apa.
• Zigawo zozungulira za single-axis : pini ya screwps, nsonga yopangira mano, chowongolera. Izi ndi ntchito zosintha; palibe chomwe chimapindula powonjezera sitepe yoponya.
• Zida zomwe sizomveka kuponya m'sitolo yathu : titaniyamu yokhazikika, zoumba zina za zirconia. Timawapewa.
• Wogula yemwe sangavomereze "malo ojambulidwa ndi abwino" : ngati chojambula chanu chikuwonetsa Ra 0.4 µm pankhope iliyonse, simukufuna kuponya - mukufuna gawo lopangidwa mwaluso. Ziwalo za oponya zimafunikira dongosolo lochizira pamwamba.

5. Mtengo / nthawi yotsogolera masamu - momwe mungaganizire

Kusinthika kwa chida chamanja kumawoneka chonchi mu 2026:

• Kubweza zida kwa katswiri wa sera wosindikizidwa wa SLA / 3D ndi aluminiyamu kufa: USD 5,000 - 15,000 pa moyo wa zida 5,000. Pakufa kwachitsulo cholimba (nthawi zambiri ≥ 50,000-piece volume): USD 25,000 - 80,000.
• Nkhani yoyamba + FAIR : Masabata 6 - 9 kuchokera ku PO.
• Mtengo wa serial (pambuyo pa 5,000-piece run) : nthawi zambiri kutsika ndi 30–50 % kuposa mtengo wofanana ndi 5-axis machined-from-bar pagawo lomwelo.
• Nthawi yotsogolera pa batch (pambuyo pa nkhani yoyamba) : Masabata 4 - 6 kwa batchi ya 5,000-chidutswa, yotsika pa chidutswa chilichonse kusiyana ndi makina opangidwa ndi makina.

Ziwerengerozi zimasintha kwambiri ndi mtengo wamtengo wapatali. Ngati 17-4 PH bar ikukhala yokwera mtengo modabwitsa, mlandu wakuponya umakhala wolimba.

6. Mafunso Ofunsidwa Kawirikawiri

Q: Kodi kupanga ndalama kumasintha machitidwe azitsulo a 17-4 PH olowa poyerekeza ndi katundu wa bar? A: Inde - ndipo nthawi zambiri kumbali yomwe mukufuna. Investment-cast 17-4 PH ili ndi njere yabwino kwambiri, yofananirapo kuposa mipiringidzo yayikulu, yomwe imathandizira kutopa ndikupangitsa kuuma kosasinthika pambuyo pochiritsa kutentha. Chemistry sikusintha; microstructure imachita.

Q: Kodi ndingasunge zojambula zanga ndikungotenga gawo lomwelo? A: Nthawi zina inde, koma nthawi zambiri ayi. Kuyika ndalama kumapindula ndi zosintha zazing'ono (radii, draft, makulidwe a khoma) kuti zida zikhale zotsika mtengo komanso zotsika mtengo. Ndemanga ya DFM ndi gawo la gawo lililonse latsopano lomwe timatchula.

Q: Kodi kuponyera kumagwira ntchito pamagulu ang'onoang'ono (nenani zida 200)? A: Kwa prototypes, inde - chida cha sera chosindikizidwa cha 3D chimapangitsa kuti izi zitheke. Pakupanga kosalekeza, kuponya nthawi zambiri kumafunika ≥ 500-1,000 zidutswa / chaka kuti awononge chidacho.

Q: Nanga bwanji za hypo-tubing ndi mbali zina zosapanga dzimbiri zowonda kwambiri? A: Kuponya ndalama nthawi zambiri si njira yoyenera yopangira magawo opyapyala ngati chubu; laser kuwotcherera, hydro-kupanga kapena Machining kuchokera chubu nthawi zambiri bwino. Tikuwuzani ngati gawo lina siliyenera kujambulidwa panthawi ya DFM.

Q: Kodi kutsirizitsa kwapamwamba kudzakhala kosiyana ndi katundu wopangidwa ndi makina? Yankho: Inde - malo oponyerapo ali ndi mawonekedwe atirigu. Pamalo ogwirira ntchito (mipando, nkhope za nsagwada) timazimitsa izi. Pamalo okongola timapereka electropolishing ndi passivation zomwe zimatsitsa pamwamba mpaka Ra ≤ 0.4 µm.

7. Mapeto

Kusintha masheya opangidwa ndi makina opangira ndalama ndikusuntha kwanzeru kwa ma geometri a zida zamanja mumagulu akulu kuchokera pa zidutswa 1,000 kupita m'mwamba - kumachepetsa nthawi yozungulira, mtengo wazinthu zosaphika komanso kusintha kwa zida mu sitepe imodzi. Pazigawo zosavuta zozungulira kapena ma voliyumu apakati a 500-pachaka, makina opangidwa ndi makina akadali yankho lolondola, ndipo choyambitsa chachikulu chidzakuwuzani izi. Ku Ningbo Ruican timayendetsa zaka 17+ pazachipatala 17-4 PH ndi AISI 316L castings, ndi chithandizo cha kutentha m'nyumba ndi CNC kumaliza.