1. Vim li cas Centerless Sib Tsoo Haum Titanium Bars
Lub tshuab tsis muaj qhov nruab nrab tshem tawm qhov xav tau ntawm qhov chaw ua haujlwm -axis positioning: lub bar tau txais kev txhawb nqa ntawm lub log sib tsoo, lub log tswj thiab qhov chaw ua hauj lwm so, muab siab dhau thiab rov ua dua. Rau cov titanium ntev bars no zam kev sib tham thiab clamping distortion qhov chaw ntawm - hom kev sib tsoo tuaj yeem qhia tau, thiab nws teb tau zoo rau ntau txoj kab uas muaj nyob hauv cov khoom siv bar.
2. Tsib sib tsoo yam ntxwv ntawm titanium
- High hardness, qib -nyob ntawm:cov qib ntshiab coj mus muag (Gr1–Gr4) zaum ntawm HV 120–200; annealed Ti-6Al-4V yog kwv yees li HV 330-370; alloys muaj peev xwm tshaj HV 400. High hardness hnav lub log thiab tsa sib tsoo rog.
- Tsawg thermal conductivity:Thaum tshav kub kub concentrates ntawm qhov chaw sib cuag es tsis txhob coj mus rau hauv lub bar, tsa qhov kub thiab txias hauv cheeb tsam thiab ua rau qhov chaw zoo.
- Oxidation rhiab heev:nyob rau ntawm qhov kub siab generated hauv kev sib tsoo, titanium reacts nrog cua thiab degrades txheej txheej; Kev ua kom txias thiab lubrication yog qhov yuav tsum tau ua.
- Log loading thiab adhesion:titanium cov tshuaj affinity ua rau cov chips vuam mus rau lub log nto, glazing lub log thiab ua kom nrawm nrawm.
- Ua hauj lwm hardening:deformation ntawm qhov sib tsoo cheeb tsam hardens saum npoo, ua rau tom qab txiav nyuaj thiab txhawb ntxiv adhesion.
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3. Kev xaiv lub log
Ntsuab silicon carbide (GC) lub log yog cov qauv xaiv rau titanium - siab hardness, tsis tshua muaj hnav, thiab cov qauv friable uas ua rau lub log ntse. Rau siab -kawg aerospace ua hauj lwm, cubic boron nitride (CBN) thiab pob zeb diamond log xa superior thermal stability thiab log lub neej ntawm tus nqi siab dua. Nyob rau hauv txhua rooj plaub lub hom phiaj yog tib yam: kom lub txiav ntug ntse thiab sib tsoo kub tsawg.
4. Coolant - Txias thiab ntxuav hauv ib qho
Nyob rau hauv qhov chaw tsis sib tsoo lub coolant yuav tsum ua ob txoj haujlwm: nqa cov cua sov kom deb ntawm qhov chaw tiv tauj thiab yaug cov chips thiab cov khib nyiab log tawm ntawm qhov sib txawv. Dej- cov kua dej sib tov sib xyaw nrog huab cua - siab (EP) additives txo adhesion thiab txhim kho qhov tseeb; siab - siab xa (nrog pom) yog pom zoo rau cov nqi ntau lawm. Ib qho thaiv los yog tsis ncaj ncees lawm cov dej txias yog qhov ua rau titanium hlawv thiab qhov chaw puas.
5. Txheej txheem Parameter (Validated ntawm TC4 φ10 mm Bar)
Rau TC4 (Ti-6Al-4V) φ10 mm bar rau ntawm qhov chaw tsis muaj qhov sib tsoo, rov ua dua qhov kev ntsuam xyuas muab cov ntsiab lus pib hauv qab no: sib tsoo qhov tob 0.05-0.1 hli rau ib kis thiab lub log ceev ntawm kwv yees li 25 m / s. Nyob rau hauv no ua ke lub log adhesion yog minimized thiab nto zoo yog pom zoo rau qib thiab txoj kab uas hla. Kho cov no raws li qhov tseeb pib qhov tseem ceeb, tsis yog universal tas mus li: kho qhov tob, pub tus nqi thiab lub log hnav rau cov kab uas loj dua, lwm qib, thiab qhov yuav tsum tau ua tiav thiab kev ua siab ntev (h7-h11 yog ib txwm ua tiav nrog kev teeb tsa ruaj khov).
6. Cov Lus Qhia Zoo
- Hnav lub log tsis tu ncua - lub log glazed hlawv titanium ua ntej nws hnav pom.
- Ntsuas hauv - voj voog: thermal loj hlob hauv titanium tuav yog qhov tseem ceeb; cia lub bar kom stabilize ua ntej zaum kawg sizing.
- Tsis txhob qhuav sib tsoo nkaus; tsis muaj coolant, nto oxidation thiab adhesion ua tiav tswj tsis tau.
